Android之自定義控件-城市選擇，android控件
實現效果:
圖片素材: 
--> 首先, 城市數據字節放在 Json 文件, 就不網絡獲取了.
city.json 存放 Json 數據:
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1 {
2 "result": "0",
3 "message": "接口通信成功！",
4 "responseData": {
5 "History": [],
6 "Recent": [],
7 "Hot": [
8 {
9 "id": "226",
10 "cityName": "上海"
11 },
12 {
13 "id": "447",
14 "cityName": "北京"
15 },
16 {
17 "id": "221",
18 "cityName": "南京"
19 },
20 {
21 "id": "220",
22 "cityName": "蘇州"
23 },
24 {
25 "id": "261",
26 "cityName": "杭州"
27 },
28 {
29 "id": "476",
30 "cityName": "天津"
31 }
32 ],
33 "Common": [
34 {
35 "title": "A",
36 "items": [
37 {
38 "id": 664,
39 "cityName": "安慶"
40 },
41 {
42 "id": 3590,
43 "cityName": "安吉縣"
44 }
45 ]
46 },
47 {
48 "title": "B",
49 "items": [
50 {
51 "id": 3612,
52 "cityName": "巴州"
53 },
54 {
55 "id": 3366,
56 "cityName": "白銀"
57 },
58 {
59 "id": 910,
60 "cityName": "蚌埠"
61 },
62 {
63 "id": 2818,
64 "cityName": "保定"
65 },
66 {
67 "id": 1068,
68 "cityName": "北海"
69 },
70 {
71 "id": 447,
72 "cityName": "北京"
73 },
74 {
75 "id": 882,
76 "cityName": "濱州"
77 },
78 {
79 "id": 2119,
80 "cityName": "亳州"
81 },
82 {
83 "id": 3449,
84 "cityName": "博爾塔拉蒙古自治州"
85 },
86 {
87 "id": 2202,
88 "cityName": "濱海縣"
89 },
90 {
91 "id": 2462,
92 "cityName": "濱海新區大港"
93 },
94 {
95 "id": 2463,
96 "cityName": "濱海新區塘沽"
97 },
98 {
99 "id": 2464,
100 "cityName": "濱海新區漢沽"
101 },
102 {
103 "id": 2788,
104 "cityName": "寶應縣"
105 },
106 {
107 "id": 3452,
108 "cityName": "博樂"
109 },
110 {
111 "id": 3487,
112 "cityName": "霸州"
113 }
114 ]
115 },
116 {
117 "title": "C",
118 "items": [
119 {
120 "id": 1889,
121 "cityName": "滄州"
122 },
123 {
124 "id": 2611,
125 "cityName": "昌吉自治州"
126 },
127 {
128 "id": 2329,
129 "cityName": "長春"
130 },
131 {
132 "id": 651,
133 "cityName": "長沙"
134 },
135 {
136 "id": 2926,
137 "cityName": "長治"
138 },
139 {
140 "id": 237,
141 "cityName": "常州"
142 },
143 {
144 "id": 1959,
145 "cityName": "朝陽"
146 },
147 {
148 "id": 3339,
149 "cityName": "潮州"
150 },
151 {
152 "id": 279,
153 "cityName": "成都"
154 },
155 {
156 "id": 3527,
157 "cityName": "承德"
158 },
159 {
160 "id": 2095,
161 "cityName": "池州"
162 },
163 {
164 "id": 2303,
165 "cityName": "赤峰"
166 },
167 {
168 "id": 901,
169 "cityName": "滁州"
170 },
171 {
172 "id": 621,
173 "cityName": "重慶"
174 },
175 {
176 "id": 920,
177 "cityName": "崇明縣"
178 },
179 {
180 "id": 2275,
181 "cityName": "曹縣"
182 },
183 {
184 "id": 2620,
185 "cityName": "慈溪"
186 },
187 {
188 "id": 2709,
189 "cityName": "常熟"
190 },
191 {
192 "id": 2779,
193 "cityName": "茌平縣"
194 },
195 {
196 "id": 3066,
197 "cityName": "巢湖"
198 },
199 {
200 "id": 3135,
201 "cityName": "長豐縣"
202 },
203 {
204 "id": 3630,
205 "cityName": "昌黎縣"
206 },
207 {
208 "id": 3640,
209 "cityName": "章丘"
210 },
211 {
212 "id": 3657,
213 "cityName": "崇州"
214 }
215 ]
216 },
217 {
218 "title": "D",
219 "items": [
220 {
221 "id": 3384,
222 "cityName": "達卡（孟加拉國）"
223 },
224 {
225 "id": 1699,
226 "cityName": "大連"
227 },
228 {
229 "id": 2700,
230 "cityName": "大慶"
231 },
232 {
233 "id": 2290,
234 "cityName": "大同"
235 },
236 {
237 "id": 579,
238 "cityName": "德州"
239 },
240 {
241 "id": 3351,
242 "cityName": "定州"
243 },
244 {
245 "id": 254,
246 "cityName": "東莞"
247 },
248 {
249 "id": 1748,
250 "cityName": "東營"
251 },
252 {
253 "id": 2208,
254 "cityName": "德清縣"
255 },
256 {
257 "id": 2286,
258 "cityName": "東海縣"
259 },
260 {
261 "id": 2608,
262 "cityName": "定遠縣"
263 },
264 {
265 "id": 2715,
266 "cityName": "東台"
267 },
268 {
269 "id": 3101,
270 "cityName": "砀山縣"
271 },
272 {
273 "id": 3150,
274 "cityName": "大廠縣"
275 },
276 {
277 "id": 3166,
278 "cityName": "東鄉縣"
279 },
280 {
281 "id": 3281,
282 "cityName": "丹陽"
283 },
284 {
285 "id": 3406,
286 "cityName": "東明縣"
287 },
288 {
289 "id": 3618,
290 "cityName": "大悟縣"
291 },
292 {
293 "id": 3643,
294 "cityName": "敦煌"
295 },
296 {
297 "id": 3661,
298 "cityName": "大名縣"
299 }
300 ]
301 },
302 {
303 "title": "F",
304 "items": [
305 {
306 "id": 2176,
307 "cityName": "佛山"
308 },
309 {
310 "id": 801,
311 "cityName": "福州"
312 },
313 {
314 "id": 3165,
315 "cityName": "撫州"
316 },
317 {
318 "id": 2881,
319 "cityName": "阜陽"
320 },
321 {
322 "id": 2262,
323 "cityName": "富錦"
324 },
325 {
326 "id": 2399,
327 "cityName": "鳳陽縣"
328 },
329 {
330 "id": 3157,
331 "cityName": "繁峙縣"
332 },
333 {
334 "id": 3162,
335 "cityName": "豐縣"
336 },
337 {
338 "id": 3297,
339 "cityName": "阜南縣"
340 },
341 {
342 "id": 3441,
343 "cityName": "奉化"
344 },
345 {
346 "id": 3508,
347 "cityName": "阜寧縣"
348 },
349 {
350 "id": 3509,
351 "cityName": "肥東縣"
352 },
353 {
354 "id": 3541,
355 "cityName": "肥西縣"
356 },
357 {
358 "id": 3544,
359 "cityName": "鳳台縣"
360 }
361 ]
362 },
363 {
364 "title": "G",
365 "items": [
366 {
367 "id": 2976,
368 "cityName": "贛州"
369 },
370 {
371 "id": 3472,
372 "cityName": "廣元"
373 },
374 {
375 "id": 1969,
376 "cityName": "廣州"
377 },
378 {
379 "id": 709,
380 "cityName": "貴陽"
381 },
382 {
383 "id": 898,
384 "cityName": "桂林"
385 },
386 {
387 "id": 2002,
388 "cityName": "高唐縣"
389 },
390 {
391 "id": 2129,
392 "cityName": "灌南縣"
393 },
394 {
395 "id": 2224,
396 "cityName": "固始縣"
397 },
398 {
399 "id": 2518,
400 "cityName": "贛榆縣"
401 },
402 {
403 "id": 2734,
404 "cityName": "高密"
405 },
406 {
407 "id": 2746,
408 "cityName": "高郵"
409 },
410 {
411 "id": 2752,
412 "cityName": "灌雲縣"
413 },
414 {
415 "id": 2819,
416 "cityName": "高碑店"
417 },
418 {
419 "id": 3060,
420 "cityName": "古交"
421 },
422 {
423 "id": 3385,
424 "cityName": "孤山1"
425 },
426 {
427 "id": 3455,
428 "cityName": "沽源縣"
429 },
430 {
431 "id": 3490,
432 "cityName": "固鎮縣"
433 },
434 {
435 "id": 3502,
436 "cityName": "貴溪"
437 },
438 {
439 "id": 3589,
440 "cityName": "瓜州縣"
441 },
442 {
443 "id": 3614,
444 "cityName": "廣德縣"
445 },
446 {
447 "id": 3619,
448 "cityName": "古田縣"
449 },
450 {
451 "id": 3634,
452 "cityName": "格爾木"
453 },
454 {
455 "id": 3699,
456 "cityName": "高安"
457 }
458 ]
459 },
460 {
461 "title": "H",
462 "items": [
463 {
464 "id": 558,
465 "cityName": "哈爾濱"
466 },
467 {
468 "id": 2104,
469 "cityName": "海口"
470 },
471 {
472 "id": 3633,
473 "cityName": "海西蒙古族藏族自治州"
474 },
475 {
476 "id": 2233,
477 "cityName": "邯鄲"
478 },
479 {
480 "id": 3652,
481 "cityName": "韓國首爾"
482 },
483 {
484 "id": 2845,
485 "cityName": "漢中"
486 },
487 {
488 "id": 261,
489 "cityName": "杭州"
490 },
491 {
492 "id": 639,
493 "cityName": "合肥"
494 },
495 {
496 "id": 895,
497 "cityName": "菏澤"
498 },
499 {
500 "id": 1074,
501 "cityName": "賀州"
502 },
503 {
504 "id": 3372,
505 "cityName": "鶴壁"
506 },
507 {
508 "id": 3611,
509 "cityName": "衡陽"
510 },
511 {
512 "id": 645,
513 "cityName": "呼和浩特"
514 },
515 {
516 "id": 2205,
517 "cityName": "湖州"
518 },
519 {
520 "id": 3397,
521 "cityName": "葫蘆島"
522 },
523 {
524 "id": 594,
525 "cityName": "淮安"
526 },
527 {
528 "id": 699,
529 "cityName": "淮北"
530 },
531 {
532 "id": 1953,
533 "cityName": "淮南"
534 },
535 {
536 "id": 3124,
537 "cityName": "黃岡"
538 },
539 {
540 "id": 2451,
541 "cityName": "黃山"
542 },
543 {
544 "id": 255,
545 "cityName": "惠州"
546 },
547 {
548 "id": 1774,
549 "cityName": "海安縣"
550 },
551 {
552 "id": 1840,
553 "cityName": "海陽"
554 },
555 {
556 "id": 2347,
557 "cityName": "海門"
558 },
559 {
560 "id": 2356,
561 "cityName": "黃骅"
562 },
563 {
564 "id": 2878,
565 "cityName": "霍山縣"
566 },
567 {
568 "id": 3125,
569 "cityName": "紅安縣"
570 },
571 {
572 "id": 3266,
573 "cityName": "洪澤縣"
574 },
575 {
576 "id": 3291,
577 "cityName": "懷來縣"
578 },
579 {
580 "id": 3494,
581 "cityName": "霍邱縣"
582 }
583 ]
584 },
585 {
586 "title": "J",
587 "items": [
588 {
589 "id": 771,
590 "cityName": "吉林"
591 },
592 {
593 "id": 470,
594 "cityName": "濟南"
595 },
596 {
597 "id": 996,
598 "cityName": "濟寧"
599 },
600 {
601 "id": 2230,
602 "cityName": "佳木斯"
603 },
604 {
605 "id": 1536,
606 "cityName": "嘉興"
607 },
608 {
609 "id": 1777,
610 "cityName": "嘉峪關"
611 },
612 {
613 "id": 2242,
614 "cityName": "焦作"
615 },
616 {
617 "id": 2893,
618 "cityName": "揭陽"
619 },
620 {
621 "id": 654,
622 "cityName": "金華"
623 },
624 {
625 "id": 2543,
626 "cityName": "錦州"
627 },
628 {
629 "id": 2759,
630 "cityName": "晉城"
631 },
632 {
633 "id": 2316,
634 "cityName": "晉中"
635 },
636 {
637 "id": 2076,
638 "cityName": "荊門"
639 },
640 {
641 "id": 2070,
642 "cityName": "景德鎮"
643 },
644 {
645 "id": 702,
646 "cityName": "九江"
647 },
648 {
649 "id": 1781,
650 "cityName": "酒泉"
651 },
652 {
653 "id": 1723,
654 "cityName": "薊縣"
655 },
656 {
657 "id": 2110,
658 "cityName": "巨野縣"
659 },
660 {
661 "id": 2163,
662 "cityName": "金鄉縣"
663 },
664 {
665 "id": 2496,
666 "cityName": "靖江"
667 },
668 {
669 "id": 2584,
670 "cityName": "句容"
671 },
672 {
673 "id": 2629,
674 "cityName": "江陰"
675 },
676 {
677 "id": 2656,
678 "cityName": "莒南縣"
679 },
680 {
681 "id": 2791,
682 "cityName": "嘉祥縣"
683 },
684 {
685 "id": 2923,
686 "cityName": "吉木薩爾縣"
687 },
688 {
689 "id": 3000,
690 "cityName": "莒縣"
691 },
692 {
693 "id": 3034,
694 "cityName": "膠州"
695 },
696 {
697 "id": 3213,
698 "cityName": "金湖縣"
699 },
700 {
701 "id": 3219,
702 "cityName": "建湖縣"
703 },
704 {
705 "id": 3256,
706 "cityName": "鄄城縣"
707 },
708 {
709 "id": 3294,
710 "cityName": "靜海縣"
711 },
712 {
713 "id": 3403,
714 "cityName": "金壇"
715 },
716 {
717 "id": 3428,
718 "cityName": "嘉峪關"
719 },
720 {
721 "id": 3539,
722 "cityName": "金寨縣"
723 },
724 {
725 "id": 3548,
726 "cityName": "泾縣"
727 },
728 {
729 "id": 3578,
730 "cityName": "績溪縣"
731 },
732 {
733 "id": 3600,
734 "cityName": "介休"
735 },
736 {
737 "id": 3677,
738 "cityName": "嘉善縣"
739 },
740 {
741 "id": 3706,
742 "cityName": "吉首"
743 }
744 ]
745 },
746 {
747 "title": "K",
748 "items": [
749 {
750 "id": 907,
751 "cityName": "開封"
752 },
753 {
754 "id": 1833,
755 "cityName": "昆明"
756 },
757 {
758 "id": 2824,
759 "cityName": "昆山"
760 },
761 {
762 "id": 3540,
763 "cityName": "康保縣"
764 },
765 {
766 "id": 3613,
767 "cityName": "庫爾勒"
768 }
769 ]
770 },
771 {
772 "title": "L",
773 "items": [
774 {
775 "id": 3515,
776 "cityName": "來賓"
777 },
778 {
779 "id": 618,
780 "cityName": "萊蕪"
781 },
782 {
783 "id": 1545,
784 "cityName": "蘭州"
785 },
786 {
787 "id": 993,
788 "cityName": "廊坊"
789 },
790 {
791 "id": 2623,
792 "cityName": "麗江"
793 },
794 {
795 "id": 3038,
796 "cityName": "麗水"
797 },
798 {
799 "id": 762,
800 "cityName": "連雲港"
801 },
802 {
803 "id": 3597,
804 "cityName": "遼源"
805 },
806 {
807 "id": 1527,
808 "cityName": "聊城"
809 },
810 {
811 "id": 1008,
812 "cityName": "臨沂"
813 },
814 {
815 "id": 1067,
816 "cityName": "柳州"
817 },
818 {
819 "id": 2721,
820 "cityName": "六安"
821 },
822 {
823 "id": 2961,
824 "cityName": "六盤水"
825 },
826 {
827 "id": 3553,
828 "cityName": "隴南"
829 },
830 {
831 "id": 3312,
832 "cityName": "呂梁"
833 },
834 {
835 "id": 267,
836 "cityName": "洛陽"
837 },
838 {
839 "id": 2417,
840 "cityName": "鹿邑縣"
841 },
842 {
843 "id": 2531,
844 "cityName": "洛川縣"
845 },
846 {
847 "id": 2637,
848 "cityName": "廬江縣"
849 },
850 {
851 "id": 2694,
852 "cityName": "溧陽"
853 },
854 {
855 "id": 2712,
856 "cityName": "漣水縣"
857 },
858 {
859 "id": 2902,
860 "cityName": "樂亭縣"
861 },
862 {
863 "id": 3120,
864 "cityName": "臨朐縣"
865 },
866 {
867 "id": 3202,
868 "cityName": "蘭陵縣"
869 },
870 {
871 "id": 3324,
872 "cityName": "臨海"
873 },
874 {
875 "id": 3409,
876 "cityName": "萊陽"
877 },
878 {
879 "id": 3431,
880 "cityName": "龍口"
881 },
882 {
883 "id": 3446,
884 "cityName": "林西縣"
885 },
886 {
887 "id": 3517,
888 "cityName": "郎溪縣"
889 },
890 {
891 "id": 3549,
892 "cityName": "利辛縣"
893 },
894 {
895 "id": 3579,
896 "cityName": "臨桂縣"
897 },
898 {
899 "id": 3582,
900 "cityName": "靈璧縣"
901 },
902 {
903 "id": 3656,
904 "cityName": "灤平縣"
905 },
906 {
907 "id": 3676,
908 "cityName": "臨清"
909 }
910 ]
911 },
912 {
913 "title": "M",
914 "items": [
915 {
916 "id": 271,
917 "cityName": "馬鞍山"
918 },
919 {
920 "id": 3333,
921 "cityName": "梅州"
922 },
923 {
924 "id": 3673,
925 "cityName": "美國鳳凰城"
926 },
927 {
928 "id": 2402,
929 "cityName": "密雲縣"
930 },
931 {
932 "id": 3390,
933 "cityName": "蒙城縣"
934 },
935 {
936 "id": 3492,
937 "cityName": "明光"
938 },
939 {
940 "id": 3675,
941 "cityName": "美國鳳凰城"
942 }
943 ]
944 },
945 {
946 "title": "N",
947 "items": [
948 {
949 "id": 276,
950 "cityName": "南昌"
951 },
952 {
953 "id": 221,
954 "cityName": "南京"
955 },
956 {
957 "id": 723,
958 "cityName": "南寧"
959 },
960 {
961 "id": 238,
962 "cityName": "南通"
963 },
964 {
965 "id": 678,
966 "cityName": "寧波"
967 },
968 {
969 "id": 1135,
970 "cityName": "寧德"
971 },
972 {
973 "id": 1826,
974 "cityName": "南昌縣"
975 },
976 {
977 "id": 3682,
978 "cityName": "寧國"
979 }
980 ]
981 },
982 {
983 "title": "P",
984 "items": [
985 {
986 "id": 3510,
987 "cityName": "平潭縣"
988 },
989 {
990 "id": 1130,
991 "cityName": "莆田"
992 },
993 {
994 "id": 750,
995 "cityName": "濮陽"
996 },
997 {
998 "id": 1839,
999 "cityName": "蓬萊"
1000 },
1001 {
1002 "id": 2377,
1003 "cityName": "邳州"
1004 },
1005 {
1006 "id": 2386,
1007 "cityName": "平陰縣"
1008 },
1009 {
1010 "id": 2685,
1011 "cityName": "平遙縣"
1012 },
1013 {
1014 "id": 2962,
1015 "cityName": "盤縣"
1016 },
1017 {
1018 "id": 3284,
1019 "cityName": "普寧"
1020 },
1021 {
1022 "id": 3542,
1023 "cityName": "沛縣"
1024 },
1025 {
1026 "id": 3655,
1027 "cityName": "郫縣"
1028 }
1029 ]
1030 },
1031 {
1032 "title": "Q",
1033 "items": [
1034 {
1035 "id": 1070,
1036 "cityName": "欽州"
1037 },
1038 {
1039 "id": 2211,
1040 "cityName": "秦皇島"
1041 },
1042 {
1043 "id": 612,
1044 "cityName": "青島"
1045 },
1046 {
1047 "id": 2599,
1048 "cityName": "衢州"
1049 },
1050 {
1051 "id": 3466,
1052 "cityName": "泉州"
1053 },
1054 {
1055 "id": 2296,
1056 "cityName": "啟東"
1057 },
1058 {
1059 "id": 2408,
1060 "cityName": "青陽縣"
1061 },
1062 {
1063 "id": 2612,
1064 "cityName": "奇台縣"
1065 },
1066 {
1067 "id": 2861,
1068 "cityName": "青州"
1069 },
1070 {
1071 "id": 3056,
1072 "cityName": "曲阜"
1073 },
1074 {
1075 "id": 3069,
1076 "cityName": "遷安"
1077 },
1078 {
1079 "id": 3488,
1080 "cityName": "齊河縣"
1081 },
1082 {
1083 "id": 3501,
1084 "cityName": "全椒縣"
1085 },
1086 {
1087 "id": 3623,
1088 "cityName": "青銅峽"
1089 },
1090 {
1091 "id": 3662,
1092 "cityName": "沁陽"
1093 }
1094 ]
1095 },
1096 {
1097 "title": "R",
1098 "items": [
1099 {
1100 "id": 934,
1101 "cityName": "日照"
1102 },
1103 {
1104 "id": 873,
1105 "cityName": "如東縣"
1106 },
1107 {
1108 "id": 2147,
1109 "cityName": "如皋"
1110 },
1111 {
1112 "id": 2896,
1113 "cityName": "乳山"
1114 },
1115 {
1116 "id": 3523,
1117 "cityName": "榮成"
1118 }
1119 ]
1120 },
1121 {
1122 "title": "S",
1123 "items": [
1124 {
1125 "id": 1131,
1126 "cityName": "三明"
1127 },
1128 {
1129 "id": 3093,
1130 "cityName": "三亞"
1131 },
1132 {
1133 "id": 1569,
1134 "cityName": "汕頭"
1135 },
1136 {
1137 "id": 2280,
1138 "cityName": "商丘"
1139 },
1140 {
1141 "id": 226,
1142 "cityName": "上海"
1143 },
1144 {
1145 "id": 981,
1146 "cityName": "上饒"
1147 },
1148 {
1149 "id": 1866,
1150 "cityName": "紹興"
1151 },
1152 {
1153 "id": 253,
1154 "cityName": "深圳"
1155 },
1156 {
1157 "id": 273,
1158 "cityName": "沈陽"
1159 },
1160 {
1161 "id": 3459,
1162 "cityName": "十堰"
1163 },
1164 {
1165 "id": 746,
1166 "cityName": "石家莊"
1167 },
1168 {
1169 "id": 220,
1170 "cityName": "蘇州"
1171 },
1172 {
1173 "id": 732,
1174 "cityName": "宿遷"
1175 },
1176 {
1177 "id": 1726,
1178 "cityName": "宿州"
1179 },
1180 {
1181 "id": 2221,
1182 "cityName": "泗陽縣"
1183 },
1184 {
1185 "id": 2335,
1186 "cityName": "濉溪縣"
1187 },
1188 {
1189 "id": 2353,
1190 "cityName": "泗洪縣"
1191 },
1192 {
1193 "id": 2561,
1194 "cityName": "壽光"
1195 },
1196 {
1197 "id": 2697,
1198 "cityName": "沭陽縣"
1199 },
1200 {
1201 "id": 2722,
1202 "cityName": "壽縣"
1203 },
1204 {
1205 "id": 2749,
1206 "cityName": "射陽縣"
1207 },
1208 {
1209 "id": 2932,
1210 "cityName": "睢寧縣"
1211 },
1212 {
1213 "id": 3039,
1214 "cityName": "遂昌縣"
1215 },
1216 {
1217 "id": 3171,
1218 "cityName": "沙河"
1219 },
1220 {
1221 "id": 3186,
1222 "cityName": "三河"
1223 },
1224 {
1225 "id": 3222,
1226 "cityName": "舒城縣"
1227 },
1228 {
1229 "id": 3532,
1230 "cityName": "商城縣"
1231 },
1232 {
1233 "id": 3642,
1234 "cityName": "雙流縣"
1235 },
1236 {
1237 "id": 3644,
1238 "cityName": "泗縣"
1239 }
1240 ]
1241 },
1242 {
1243 "title": "T",
1244 "items": [
1245 {
1246 "id": 600,
1247 "cityName": "台州"
1248 },
1249 {
1250 "id": 736,
1251 "cityName": "太原"
1252 },
1253 {
1254 "id": 265,
1255 "cityName": "泰安"
1256 },
1257 {
1258 "id": 606,
1259 "cityName": "泰州"
1260 },
1261 {
1262 "id": 684,
1263 "cityName": "唐山"
1264 },
1265 {
1266 "id": 476,
1267 "cityName": "天津"
1268 },
1269 {
1270 "id": 1778,
1271 "cityName": "天水"
1272 },
1273 {
1274 "id": 3318,
1275 "cityName": "通遼"
1276 },
1277 {
1278 "id": 885,
1279 "cityName": "銅陵"
1280 },
1281 {
1282 "id": 2982,
1283 "cityName": "吐魯番地區"
1284 },
1285 {
1286 "id": 1312,
1287 "cityName": "桐廬縣"
1288 },
1289 {
1290 "id": 1696,
1291 "cityName": "桐鄉"
1292 },
1293 {
1294 "id": 2362,
1295 "cityName": "泰興"
1296 },
1297 {
1298 "id": 2659,
1299 "cityName": "太倉"
1300 },
1301 {
1302 "id": 2718,
1303 "cityName": "天台縣"
1304 },
1305 {
1306 "id": 2785,
1307 "cityName": "滕州"
1308 },
1309 {
1310 "id": 2983,
1311 "cityName": "吐魯番"
1312 },
1313 {
1314 "id": 3132,
1315 "cityName": "太和縣"
1316 },
1317 {
1318 "id": 3495,
1319 "cityName": "太湖縣"
1320 },
1321 {
1322 "id": 3530,
1323 "cityName": "桐城"
1324 }
1325 ]
1326 },
1327 {
1328 "title": "W",
1329 "items": [
1330 {
1331 "id": 1563,
1332 "cityName": "威海"
1333 },
1334 {
1335 "id": 756,
1336 "cityName": "濰坊"
1337 },
1338 {
1339 "id": 768,
1340 "cityName": "溫州"
1341 },
1342 {
1343 "id": 3300,
1344 "cityName": "烏蘭察布"
1345 },
1346 {
1347 "id": 630,
1348 "cityName": "烏魯木齊"
1349 },
1350 {
1351 "id": 222,
1352 "cityName": "無錫"
1353 },
1354 {
1355 "id": 3259,
1356 "cityName": "吳忠"
1357 },
1358 {
1359 "id": 1046,
1360 "cityName": "蕪湖"
1361 },
1362 {
1363 "id": 421,
1364 "cityName": "武漢"
1365 },
1366 {
1367 "id": 1779,
1368 "cityName": "武威"
1369 },
1370 {
1371 "id": 985,
1372 "cityName": "婺源縣"
1373 },
1374 {
1375 "id": 1051,
1376 "cityName": "蕪湖縣"
1377 },
1378 {
1379 "id": 1965,
1380 "cityName": "汶上縣"
1381 },
1382 {
1383 "id": 2914,
1384 "cityName": "五河縣"
1385 },
1386 {
1387 "id": 2967,
1388 "cityName": "蔚縣"
1389 },
1390 {
1391 "id": 3177,
1392 "cityName": "文登"
1393 },
1394 {
1395 "id": 3313,
1396 "cityName": "文水縣"
1397 },
1398 {
1399 "id": 3357,
1400 "cityName": "文安縣"
1401 },
1402 {
1403 "id": 3360,
1404 "cityName": "渦陽縣"
1405 },
1406 {
1407 "id": 3497,
1408 "cityName": "微山縣"
1409 },
1410 {
1411 "id": 3686,
1412 "cityName": "無為縣"
1413 }
1414 ]
1415 },
1416 {
1417 "title": "X",
1418 "items": [
1419 {
1420 "id": 719,
1421 "cityName": "西安"
1422 },
1423 {
1424 "id": 2137,
1425 "cityName": "西寧"
1426 },
1427 {
1428 "id": 802,
1429 "cityName": "廈門"
1430 },
1431 {
1432 "id": 3555,
1433 "cityName": "鹹陽"
1434 },
1435 {
1436 "id": 3705,
1437 "cityName": "湘西州"
1438 },
1439 {
1440 "id": 3462,
1441 "cityName": "孝感"
1442 },
1443 {
1444 "id": 3156,
1445 "cityName": "忻州"
1446 },
1447 {
1448 "id": 2506,
1449 "cityName": "新鄉"
1450 },
1451 {
1452 "id": 2189,
1453 "cityName": "新余"
1454 },
1455 {
1456 "id": 1590,
1457 "cityName": "信陽"
1458 },
1459 {
1460 "id": 2569,
1461 "cityName": "邢台"
1462 },
1463 {
1464 "id": 816,
1465 "cityName": "徐州"
1466 },
1467 {
1468 "id": 3078,
1469 "cityName": "宣城"
1470 },
1471 {
1472 "id": 1720,
1473 "cityName": "盱眙縣"
1474 },
1475 {
1476 "id": 1869,
1477 "cityName": "新昌縣"
1478 },
1479 {
1480 "id": 1926,
1481 "cityName": "興化"
1482 },
1483 {
1484 "id": 2390,
1485 "cityName": "霞浦縣"
1486 },
1487 {
1488 "id": 2580,
1489 "cityName": "響水縣"
1490 },
1491 {
1492 "id": 2650,
1493 "cityName": "新沂"
1494 },
1495 {
1496 "id": 3253,
1497 "cityName": "蕭縣"
1498 },
1499 {
1500 "id": 3398,
1501 "cityName": "興城"
1502 },
1503 {
1504 "id": 3489,
1505 "cityName": "象山縣"
1506 },
1507 {
1508 "id": 3512,
1509 "cityName": "仙居縣"
1510 },
1511 {
1512 "id": 3536,
1513 "cityName": "歙縣"
1514 }
1515 ]
1516 },
1517 {
1518 "title": "Y",
1519 "items": [
1520 {
1521 "id": 753,
1522 "cityName": "煙台"
1523 },
1524 {
1525 "id": 2527,
1526 "cityName": "延安"
1527 },
1528 {
1529 "id": 759,
1530 "cityName": "鹽城"
1531 },
1532 {
1533 "id": 239,
1534 "cityName": "揚州"
1535 },
1536 {
1537 "id": 2521,
1538 "cityName": "陽江"
1539 },
1540 {
1541 "id": 2768,
1542 "cityName": "陽泉"
1543 },
1544 {
1545 "id": 2341,
1546 "cityName": "宜昌"
1547 },
1548 {
1549 "id": 3698,
1550 "cityName": "宜春"
1551 },
1552 {
1553 "id": 1736,
1554 "cityName": "銀川"
1555 },
1556 {
1557 "id": 2577,
1558 "cityName": "鷹潭"
1559 },
1560 {
1561 "id": 1073,
1562 "cityName": "玉林"
1563 },
1564 {
1565 "id": 1210,
1566 "cityName": "岳陽"
1567 },
1568 {
1569 "id": 1766,
1570 "cityName": "運城"
1571 },
1572 {
1573 "id": 1912,
1574 "cityName": "玉山縣"
1575 },
1576 {
1577 "id": 2471,
1578 "cityName": "魚台縣"
1579 },
1580 {
1581 "id": 2553,
1582 "cityName": "儀征"
1583 },
1584 {
1585 "id": 2647,
1586 "cityName": "永城"
1587 },
1588 {
1589 "id": 2662,
1590 "cityName": "義烏"
1591 },
1592 {
1593 "id": 2869,
1594 "cityName": "宜興"
1595 },
1596 {
1597 "id": 2917,
1598 "cityName": "余姚"
1599 },
1600 {
1601 "id": 3110,
1602 "cityName": "揚中"
1603 },
1604 {
1605 "id": 3216,
1606 "cityName": "沂南縣"
1607 },
1608 {
1609 "id": 3309,
1610 "cityName": "延慶縣"
1611 },
1612 {
1613 "id": 3505,
1614 "cityName": "颍上縣"
1615 },
1616 {
1617 "id": 3519,
1618 "cityName": "陽谷縣"
1619 },
1620 {
1621 "id": 3594,
1622 "cityName": "永康"
1623 },
1624 {
1625 "id": 3615,
1626 "cityName": "沂水縣"
1627 },
1628 {
1629 "id": 3629,
1630 "cityName": "弋陽縣"
1631 },
1632 {
1633 "id": 3659,
1634 "cityName": "郓城縣"
1635 },
1636 {
1637 "id": 3663,
1638 "cityName": "伊川縣"
1639 }
1640 ]
1641 },
1642 {
1643 "title": "Z",
1644 "items": [
1645 {
1646 "id": 1854,
1647 "cityName": "棗莊"
1648 },
1649 {
1650 "id": 1207,
1651 "cityName": "張家界"
1652 },
1653 {
1654 "id": 953,
1655 "cityName": "張家口"
1656 },
1657 {
1658 "id": 1792,
1659 "cityName": "張掖"
1660 },
1661 {
1662 "id": 585,
1663 "cityName": "鎮江"
1664 },
1665 {
1666 "id": 490,
1667 "cityName": "鄭州"
1668 },
1669 {
1670 "id": 706,
1671 "cityName": "中山"
1672 },
1673 {
1674 "id": 3205,
1675 "cityName": "中衛"
1676 },
1677 {
1678 "id": 2156,
1679 "cityName": "舟山"
1680 },
1681 {
1682 "id": 2414,
1683 "cityName": "周口"
1684 },
1685 {
1686 "id": 2058,
1687 "cityName": "珠海"
1688 },
1689 {
1690 "id": 826,
1691 "cityName": "淄博"
1692 },
1693 {
1694 "id": 3468,
1695 "cityName": "自貢"
1696 },
1697 {
1698 "id": 2420,
1699 "cityName": "張北縣"
1700 },
1701 {
1702 "id": 2691,
1703 "cityName": "諸暨"
1704 },
1705 {
1706 "id": 2729,
1707 "cityName": "鄒城"
1708 },
1709 {
1710 "id": 2743,
1711 "cityName": "張家港"
1712 },
1713 {
1714 "id": 3641,
1715 "cityName": "諸城"
1716 }
1717 ]
1718 }
1719 ]
1720 }
1721 }
city.json
JsonData.java 序列化 Json 數據: (GsonFormat)
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1 package com.dragon.android.cityselect.model;
2
3 import java.util.ArrayList;
4 import java.util.List;
5
6 /**
7 * Created by Auser on 2016/10/10.
8 */
9
10 public class JsonData {
11
12
13 /**
14 * result : 0
15 * message : 接口通信成功！
16 * responseData : 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17 */
18
19 private String result;
20 private String message;
21 private ResponseDataBean responseData;
22
23 public String getResult() {
24 return result;
25 }
26
27 public void setResult(String result) {
28 this.result = result;
29 }
30
31 public String getMessage() {
32 return message;
33 }
34
35 public void setMessage(String message) {
36 this.message = message;
37 }
38
39 public ResponseDataBean getResponseData() {
40 return responseData;
41 }
42
43 public void setResponseData(ResponseDataBean responseData) {
44 this.responseData = responseData;
45 }
46
47 public static class ResponseDataBean {
48 private List<?> History = new ArrayList<>();
49 private List<?> Recent = new ArrayList<>();
50 /**
51 * id : 226
52 * cityName : 上海
53 */
54
55 private List<HotBean> Hot = new ArrayList<>();
56 /**
57 * title : A
58 * items : [{"id":664,"cityName":"安慶"},{"id":3590,"cityName":"安吉縣"}]
59 */
60
61 private List<CommonBean> Common = new ArrayList<>();
62
63 public List<?> getHistory() {
64 return History;
65 }
66
67 public void setHistory(List<?> History) {
68 this.History = History;
69 }
70
71 public List<?> getRecent() {
72 return Recent;
73 }
74
75 public void setRecent(List<?> Recent) {
76 this.Recent = Recent;
77 }
78
79 public List<HotBean> getHot() {
80 return Hot;
81 }
82
83 public void setHot(List<HotBean> Hot) {
84 this.Hot = Hot;
85 }
86
87 public List<CommonBean> getCommon() {
88 return Common;
89 }
90
91 public void setCommon(List<CommonBean> Common) {
92 this.Common = Common;
93 }
94
95 public static class HotBean {
96 private String id;
97 private String cityName;
98
99 public String getId() {
100 return id;
101 }
102
103 public void setId(String id) {
104 this.id = id;
105 }
106
107 public String getCityName() {
108 return cityName;
109 }
110
111 public void setCityName(String cityName) {
112 this.cityName = cityName;
113 }
114 }
115
116 public static class CommonBean {
117 private String title;
118 /**
119 * id : 664
120 * cityName : 安慶
121 */
122
123 private List<ItemsBean> items = new ArrayList<>();
124
125 public String getTitle() {
126 return title;
127 }
128
129 public void setTitle(String title) {
130 this.title = title;
131 }
132
133 public List<ItemsBean> getItems() {
134 return items;
135 }
136
137 public void setItems(List<ItemsBean> items) {
138 this.items = items;
139 }
140
141 public static class ItemsBean {
142 private int id;
143 private String cityName;
144
145 public int getId() {
146 return id;
147 }
148
149 public void setId(int id) {
150 this.id = id;
151 }
152
153 public String getCityName() {
154 return cityName;
155 }
156
157 public void setCityName(String cityName) {
158 this.cityName = cityName;
159 }
160 }
161 }
162 }
163 }
JsonData
--> 接下來, 先寫布局, 可以看到第一張圖片, 垂直的四個布局樣式一樣, 這裡准備用組合控件的形式實現.
單條布局 item_linear_layout.xml:
![]()
1 <?xml version="1.0" encoding="utf-8"?>
2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
3 xmlns:app="http://schemas.android.com/apk/res-auto"
4 android:layout_width="match_parent"
5 android:layout_height="wrap_content"
6 android:background="?attr/actionBarItemBackground"
7 android:orientation="vertical">
8
9 <View
10 android:id="@+id/view_shape1"
11 android:layout_width="match_parent"
12 android:layout_height="1dp"
13 android:background="#ccc"
14 android:visibility="invisible" />
15
16 <LinearLayout
17 android:layout_width="match_parent"
18 android:layout_height="wrap_content"
19 android:gravity="center_vertical"
20 android:orientation="horizontal"
21 android:padding="16dp">
22
23 <ImageView
24 android:id="@+id/iv_icon"
25 android:layout_width="wrap_content"
26 android:layout_height="wrap_content"
27 app:srcCompat="@mipmap/img_city" />
28
29 <TextView
30 android:id="@+id/tv_title"
31 android:layout_width="wrap_content"
32 android:layout_height="wrap_content"
33 android:layout_weight="1"
34 android:gravity="center_vertical"
35 android:paddingLeft="16dp"
36 android:text="入住城市" />
37
38 <TextView
39 android:id="@+id/tv_title_c"
40 android:layout_width="wrap_content"
41 android:layout_height="wrap_content"
42 android:text="入住城市"
43 android:textColor="#007F6E" />
44
45 <ImageView
46 android:layout_width="wrap_content"
47 android:layout_height="wrap_content"
48 app:srcCompat="@mipmap/back_black_normal" />
49
50 </LinearLayout>
51
52 <View
53 android:id="@+id/view_shape2"
54 android:layout_width="match_parent"
55 android:layout_height="1dp"
56 android:background="#ccc"
57 android:visibility="invisible" />
58
59 </LinearLayout>
item_linear_layout
自定義組合控件 DefineLinearLayout.java:
![]()
1 package com.dragon.android.cityselect.view;
2
3 import android.content.Context;
4 import android.util.AttributeSet;
5 import android.view.LayoutInflater;
6 import android.view.View;
7 import android.widget.ImageView;
8 import android.widget.LinearLayout;
9 import android.widget.TextView;
10
11 import com.dragon.android.cityselect.R;
12
13 /**
14 * Created by Auser on 2016/10/10.
15 */
16
17 public class DefineLinearLayout extends LinearLayout {
18
19 private View view_shape1;
20 private View view_shape2;
21 private ImageView iv_icon;
22 private TextView tv_title;
23 private TextView tv_title_c;
24 private View layout;
25
26 public DefineLinearLayout(Context context) {
27 super(context);
28 }
29
30 public DefineLinearLayout(Context context, AttributeSet attrs) {
31 super(context, attrs);
32 initView(context, attrs);
33 }
34
35 private void initView(Context context, AttributeSet attrs) {
36
37 // 加載布局
38 layout = LayoutInflater.from(context).inflate(R.layout.item_linear_layout, this);
39
40 view_shape1 = layout.findViewById(R.id.view_shape1);
41 view_shape2 = layout.findViewById(R.id.view_shape2);
42 iv_icon = (ImageView) layout.findViewById(R.id.iv_icon);
43 tv_title = (TextView) layout.findViewById(R.id.tv_title);
44 tv_title_c = (TextView) layout.findViewById(R.id.tv_title_c);
45 }
46
47 // 這裡沒有用自定義屬性的方式修改數據
48 public void changeData(Boolean isChecked, int imgRes, String title, String title_c) {
49 view_shape1.setVisibility(isChecked ? View.VISIBLE : View.INVISIBLE);
50 view_shape2.setVisibility(isChecked ? View.VISIBLE : View.INVISIBLE);
51 iv_icon.setImageResource(imgRes);
52 tv_title.setText(title);
53 tv_title_c.setText(title_c);
54 }
55
56 public void changeData(Boolean isChecked) {
57 view_shape1.setVisibility(isChecked ? View.VISIBLE : View.INVISIBLE);
58 view_shape2.setVisibility(isChecked ? View.VISIBLE : View.INVISIBLE);
59 }
60
61 public void changeData(String title_c) {
62 tv_title_c.setText(title_c);
63 }
64 }
DefineLinearLayout
然後在主布局 activity_main.xml 中寫首頁布局: (圓角)
![]()
1 <?xml version="1.0" encoding="utf-8"?>
2 <shape xmlns:android="http://schemas.android.com/apk/res/android">
3
4 <corners android:radius="15dp"/>
5 <solid android:color="#fff"/>
6
7 </shape>
bg_shape_linear
![]()
1 <?xml version="1.0" encoding="utf-8"?>
2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
3 xmlns:tools="http://schemas.android.com/tools"
4 android:id="@+id/activity_main"
5 android:layout_width="match_parent"
6 android:layout_height="match_parent"
7 android:background="#ddd"
8 android:orientation="vertical"
9 android:padding="16dp"
10 tools:context="com.dragon.android.cityselect.MainActivity">
11
12 <LinearLayout
13 android:layout_width="wrap_content"
14 android:layout_height="wrap_content"
15 android:background="@drawable/bg_shape_linear"
16 android:orientation="vertical">
17
18 <com.dragon.android.cityselect.view.DefineLinearLayout
19 android:id="@+id/dl_city"
20 android:layout_width="match_parent"
21 android:layout_height="wrap_content"
22 android:background="?attr/actionBarItemBackground"
23 android:clickable="true"
24 android:onClick="click" />
25
26 <com.dragon.android.cityselect.view.DefineLinearLayout
27 android:id="@+id/dl_key"
28 android:layout_width="match_parent"
29 android:layout_height="wrap_content"
30 android:background="?attr/actionBarItemBackground"
31 android:clickable="true"
32 android:onClick="click" />
33
34 <com.dragon.android.cityselect.view.DefineLinearLayout
35 android:id="@+id/dl_time"
36 android:layout_width="match_parent"
37 android:layout_height="wrap_content"
38 android:background="?attr/actionBarItemBackground"
39 android:clickable="true"
40 android:onClick="click" />
41
42 <com.dragon.android.cityselect.view.DefineLinearLayout
43 android:id="@+id/dl_day"
44 android:layout_width="match_parent"
45 android:layout_height="wrap_content"
46 android:background="?attr/actionBarItemBackground"
47 android:clickable="true"
48 android:onClick="click" />
49
50 </LinearLayout>
51
52 </LinearLayout>
activity_main
--> 第三步, 寫出城市選擇的布局.
首先是右側城市首字母選擇的自定義 View (也可以使用自定義 ListView 實現) SlideBar.java:
![]()
1 package com.dragon.android.cityselect.view;
2
3 import android.content.Context;
4 import android.graphics.Canvas;
5 import android.graphics.Color;
6 import android.graphics.Paint;
7 import android.graphics.Typeface;
8 import android.util.AttributeSet;
9 import android.view.MotionEvent;
10 import android.view.View;
11
12 import com.dragon.android.cityselect.R;
13
14 import java.util.ArrayList;
15
16 /**
17 * Created by Jerry on 16/10/11.
18 */
19
20 public class SlideBar extends View {
21
22 private ArrayList<String> titles; // 首字母的集合(不一定為26個)
23 private int position = -1; // 被選中的字符的位置
24 private Paint mPaint = new Paint(Paint.ANTI_ALIAS_FLAG); // 畫筆
25
26 public SlideBar(Context context) {
27 super(context);
28 }
29
30 public SlideBar(Context context, AttributeSet attrs) {
31 super(context, attrs);
32 }
33
34 public void getTitles(ArrayList<String> titles){
35 this.titles = titles;
36 }
37
38 @Override
39 protected void onDraw(Canvas canvas) {
40 super.onDraw(canvas);
41
42 // 得到右側寬高
43 int width = getWidth();
44 int height = getHeight() - 16;
45
46 int codeHeight = height / titles.size(); // 計算出每一個字母占有的高度
47
48 for (int i = 0; i < titles.size(); i++) {
49 mPaint.setStyle(Paint.Style.FILL_AND_STROKE);
50 mPaint.setTypeface(Typeface.DEFAULT_BOLD);
51 mPaint.setColor(Color.parseColor("#666666"));
52 mPaint.setTextSize(20);
53
54 // 給選中的 字母 不同的顏色
55 if (position != -1 && position == i) {
56 mPaint.setColor(Color.parseColor("#3399ff"));
57 }
58 float xpos = (width - mPaint.measureText(titles.get(i))) / 2;
59 float ypos = (i + 1) * codeHeight;
60 // 畫出字母
61 canvas.drawText(titles.get(i), xpos, ypos, mPaint);
62 }
63 }
64
65 /**
66 * 處理觸碰事件
67 * 1. 當選擇一個字符時, 顯示中間的提示
68 * 2. 當手勢抬起後, 中間的提示取消
69 */
70 @Override
71 public boolean onTouchEvent(MotionEvent event) {
72 int action = event.getAction();
73 switch (action) {
74 case MotionEvent.ACTION_DOWN:
75 case MotionEvent.ACTION_MOVE:
76 // 右側選擇欄的樣式
77 setBackgroundResource(R.drawable.shape_slide_bar);
78
79 float ypos = event.getY(); // 先獲取是哪一個被按下
80 position = (int) (ypos / getHeight() * titles.size());// 選中的字符的位置
81
82 if (position >= 0 && position < titles.size()) {
83 if (listener != null) {
84 // 通知 activity 選中的位置
85 listener.onCharClick(titles.get(position));
86 }
87 }
88 invalidate(); // 重繪
89 return true;
90 case MotionEvent.ACTION_UP:
91 position = -1; // 重置位置
92 setBackgroundResource(android.R.color.transparent);
93 if (listener != null) {
94 listener.onClickUp();
95 }
96 break;
97 }
98 return super.onTouchEvent(event);
99 }
100
101 // 定義一個回調接口
102 public interface OnSlideBarCharSelectListener {
103 void onCharClick(String selectChar);
104 void onClickUp();
105 }
106
107 private OnSlideBarCharSelectListener listener;
108
109 public void setOnSlideBarCharSelectListener(OnSlideBarCharSelectListener listener) {
110 this.listener = listener;
111 }
112 }
SlideBar
然後是城市選擇的自定義 ListView (重點) CitySelect.java:
![]()
1 package com.dragon.android.cityselect.view;
2
3 import android.content.Context;
4 import android.content.res.AssetManager;
5 import android.util.AttributeSet;
6 import android.view.LayoutInflater;
7 import android.view.View;
8 import android.view.ViewGroup;
9 import android.widget.BaseAdapter;
10 import android.widget.ListView;
11 import android.widget.TextView;
12
13 import com.dragon.android.cityselect.model.JsonData;
14 import com.google.gson.Gson;
15
16 import java.io.BufferedReader;
17 import java.io.IOException;
18 import java.io.InputStream;
19 import java.io.InputStreamReader;
20 import java.util.ArrayList;
21 import java.util.List;
22
23 import static android.R.id.text1;
24
25 /**
26 * Created by Auser on 2016/10/10.
27 */
28
29 public class CitySelect extends ListView {
30
31 public CitySelect(Context context, AttributeSet attrs) {
32 super(context, attrs);
33 getJsonData(context);
34
35 MyAdapter myAdapter = new MyAdapter(context);
36 this.setAdapter(myAdapter);
37 }
38
39 private JsonData jsonData;
40
41 public JsonData getJsonData(Context context) {
42 // 加載 assets 中的文件, 並得到數據
43 AssetManager assetManager = context.getAssets();
44 try {
45 InputStream is = assetManager.open("city.json");
46 BufferedReader br = new BufferedReader(new InputStreamReader(is));
47 StringBuffer stringBuffer = new StringBuffer();
48 String str = null;
49 while ((str = br.readLine()) != null) {
50 stringBuffer.append(str);
51 }
52 // GsonFormat
53 jsonData = new Gson().fromJson(stringBuffer.toString(), JsonData.class);
54 } catch (IOException e) {
55 e.printStackTrace();
56 }
57 return jsonData;
58 }
59
60 public class MyAdapter extends BaseAdapter {
61
62 private List<JsonData.ResponseDataBean.CommonBean> common;
63 private List<JsonData.ResponseDataBean.CommonBean.ItemsBean> items;
64 private Context context;
65
66 public MyAdapter(Context context) {
67 this.context = context;
68 }
69
70 // 一次性得到所有城市個數 (可以用下面的 getData() 方法)
71 @Override
72 public int getCount() {
73 common = jsonData.getResponseData().getCommon();
74 int sum = 0;
75 for (int i = 0; i < common.size(); i++) {
76 items = common.get(i).getItems();
77 sum += items.size();
78 }
79 return jsonData == null ? 0 : sum;
80 }
81
82 @Override
83 public JsonData.ResponseDataBean getItem(int position) {
84 return jsonData.getResponseData();
85 }
86
87 @Override
88 public long getItemId(int position) {
89 return position;
90 }
91
92 @Override
93 public View getView(int position, View convertView, ViewGroup parent) {
94 JsonData.ResponseDataBean item = getItem(position);
95 ViewHolder viewHolder;
96 if (convertView == null) {
97 viewHolder = new ViewHolder();
98 // 直接使用 系統布局
99 convertView = LayoutInflater.from(context).inflate(android.R.layout.simple_list_item_1, null);
100
101 viewHolder.tv_city = (TextView) convertView.findViewById(text1);
102 convertView.setTag(viewHolder);
103 } else {
104 viewHolder = (ViewHolder) convertView.getTag();
105 }
106 // 修改數據 (得到城市內容)
107 viewHolder.tv_city.setText(getData().get(position));
108
109 return convertView;
110 }
111
112 // 加載所有城市的內容
113 public ArrayList<String> getData() {
114 ArrayList<String> datas = new ArrayList<>();
115 for (int i = 0; i < common.size(); i++) {
116 for (int j = 0; j < common.get(i).getItems().size(); j++) {
117 datas.add(common.get(i).getItems().get(j).getCityName());
118 }
119 }
120 return datas;
121 }
122 }
123
124 class ViewHolder {
125 TextView tv_city;
126 }
127 }
CitySelect
最後是城市選擇界面的布局: (EditText的樣式, 右側選擇欄的樣式, 中間的提示的樣式)
![]()
1 <?xml version="1.0" encoding="utf-8"?>
2 <shape xmlns:android="http://schemas.android.com/apk/res/android">
3
4 <stroke
5 android:width="1dp"
6 android:color="#A3D154" />
7 <corners android:radius="15dp" />
8 <solid android:color="#fff" />
9
10 </shape>
bg_edit_text
![]()
1 <?xml version="1.0" encoding="utf-8"?>
2 <shape xmlns:android="http://schemas.android.com/apk/res/android">
3 <corners
4 android:bottomLeftRadius="10dp"
5 android:topLeftRadius="10dp"/>
6 <solid android:color="#50ff0000"/>
7 </shape>
shape_slide_bar
![]()
1 <?xml version="1.0" encoding="utf-8"?>
2 <shape xmlns:android="http://schemas.android.com/apk/res/android">
3
4 <corners android:radius="15dp"/>
5 <solid android:color="#A0CE51"/>
6 <stroke android:width="10px" android:color="#5aaa"/>
7
8 </shape>
bg_shape_text_view
![]()
1 <?xml version="1.0" encoding="utf-8"?>
2 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
3 xmlns:tools="http://schemas.android.com/tools"
4 android:id="@+id/activity_city"
5 android:layout_width="match_parent"
6 android:layout_height="match_parent"
7 android:focusable="true"
8 android:focusableInTouchMode="true"
9 tools:context="com.dragon.android.cityselect.CityActivity">
10
11 <TextView
12 android:id="@+id/tv_title"
13 android:layout_width="match_parent"
14 android:layout_height="?attr/actionBarSize"
15 android:background="#ECECEC"
16 android:gravity="center"
17 android:text="全部城市" />
18
19 <ImageView
20 android:id="@+id/iv_back"
21 android:layout_width="wrap_content"
22 android:layout_height="wrap_content"
23 android:layout_marginLeft="14dp"
24 android:layout_marginTop="14dp"
25 android:background="?attr/actionBarItemBackground"
26 android:clickable="true"
27 android:src="@mipmap/back_black_normal1" />
28
29 <View
30 android:id="@+id/vvv"
31 android:layout_width="match_parent"
32 android:layout_height="40dp"
33 android:layout_alignParentLeft="true"
34 android:layout_below="@+id/tv_title"
35 android:background="#E0E0E0" />
36
37 <EditText
38 android:id="@+id/et_search"
39 android:layout_width="match_parent"
40 android:layout_height="30dp"
41 android:layout_alignParentLeft="true"
42 android:layout_below="@+id/tv_title"
43 android:layout_marginTop="10dp"
44 android:background="@drawable/bg_edit_text"
45 android:drawableLeft="@mipmap/add_qiuyou_ic_search_dark"
46 android:drawablePadding="10dp"
47 android:hint="請輸入關鍵字"
48 android:paddingLeft="10dp" />
49
50 <TextView
51 android:id="@+id/tv_szm"
52 android:layout_width="match_parent"
53 android:layout_height="30dp"
54 android:layout_alignParentLeft="true"
55 android:layout_alignParentStart="true"
56 android:layout_below="@+id/vvv"
57 android:background="#E0E0E0"
58 android:gravity="center_vertical"
59 android:paddingLeft="15dp"
60 android:text="A"
61 android:textSize="16sp" />
62
63 <com.dragon.android.cityselect.view.CitySelect
64 android:id="@+id/lv_show"
65 android:layout_width="match_parent"
66 android:layout_height="match_parent"
67 android:layout_alignParentLeft="true"
68 android:layout_alignParentStart="true"
69 android:layout_below="@+id/tv_szm" />
70
71 <com.dragon.android.cityselect.view.SlideBar
72 android:id="@+id/lv_szm"
73 android:layout_width="30dp"
74 android:layout_height="match_parent"
75 android:layout_alignParentEnd="true"
76 android:layout_alignParentRight="true"
77 android:layout_below="@+id/vvv"
78 android:layout_marginTop="30dp"
79 android:divider="#0000"
80 android:dividerHeight="0dp" />
81
82 <TextView
83 android:id="@+id/tv_show_szm"
84 android:layout_width="80dp"
85 android:layout_height="80dp"
86 android:layout_centerInParent="true"
87 android:background="@drawable/bg_shape_text_view"
88 android:gravity="center"
89 android:text="A"
90 android:textColor="#fff"
91 android:textSize="30sp"
92 android:visibility="gone" />
93
94 </RelativeLayout>
activity_city
--> 最後, Java 代碼的實現:
CityActivity.java 實現城市選擇功能: (工具類 FirstLetter.java 根據漢字得到首字母並轉換大寫)
![]()
1 package com.dragon.android.cityselect.util;
2
3 import android.support.annotation.Nullable;
4
5 import java.io.UnsupportedEncodingException;
6
7 /**
8 * Created by Auser on 2016/10/11.
9 */
10
11 public class FirstLetter {
12
13 private static final int GB_SP_DIFF = 160;
14 // 存放國標一級漢字不同讀音的起始區位碼
15 private static final int[] secPosValueList = {1601, 1637, 1833, 2078, 2274, 2302,
16 2433, 2594, 2787, 3106, 3212, 3472, 3635, 3722, 3730, 3858, 4027,
17 4086, 4390, 4558, 4684, 4925, 5249, 5600};
18 // 存放國標一級漢字不同讀音的起始區位碼對應讀音
19 private static final char[] firstLetter = {'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h',
20 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'w', 'x',
21 'y', 'z'};
22
23 @Nullable
24 public static String getFirstLetter(char ch) {
25
26 byte[] uniCode = null;
27 try {
28 uniCode = String.valueOf(ch).getBytes("GBK");
29 } catch (UnsupportedEncodingException e) {
30 e.printStackTrace();
31 return null;
32 }
33 if (uniCode[0] < 128 && uniCode[0] > 0) {
34 return null;
35 } else {
36 return convert(uniCode);
37 }
38 }
39
40 private static String convert(byte[] bytes) {
41 char result = '-';
42 int secPosValue = 0;
43 int i;
44 for (i = 0; i < bytes.length; i++) {
45 bytes[i] -= GB_SP_DIFF;
46 }
47 secPosValue = bytes[0] * 100 + bytes[1];
48 for (i = 0; i < 23; i++) {
49 if (secPosValue >= secPosValueList[i]
50 && secPosValue < secPosValueList[i + 1]) {
51 result = firstLetter[i];
52 break;
53 }
54 }
55 String string = String.valueOf(result);
56 string = string.toUpperCase();
57 return string;
58 }
59 }
FirstLetter
![]()
1 package com.dragon.android.cityselect;
2
3 import android.content.Intent;
4 import android.os.Bundle;
5 import android.support.v7.app.AppCompatActivity;
6 import android.view.View;
7 import android.widget.AbsListView;
8 import android.widget.AdapterView;
9 import android.widget.TextView;
10
11 import com.dragon.android.cityselect.model.JsonData;
12 import com.dragon.android.cityselect.util.FirstLetter;
13 import com.dragon.android.cityselect.view.CitySelect;
14 import com.dragon.android.cityselect.view.SlideBar;
15
16 import java.util.ArrayList;
17 import java.util.List;
18
19 public class CityActivity extends AppCompatActivity {
20
21 private CitySelect lv_show;
22 private CitySelect.MyAdapter myAdapter;
23 private TextView tv_szm;
24 private TextView tv_show_szm;
25 private SlideBar lv_szm;
26
27 private View lastClickedView;
28 List<JsonData.ResponseDataBean.CommonBean> common;
29 private List<JsonData.ResponseDataBean.CommonBean.ItemsBean> items;
30 private String theText = "A";
31
32 @Override
33 protected void onCreate(Bundle savedInstanceState) {
34 super.onCreate(savedInstanceState);
35 setContentView(R.layout.activity_city);
36 getSupportActionBar().hide();
37
38 lv_show = (CitySelect) findViewById(R.id.lv_show);
39 tv_szm = ((TextView) findViewById(R.id.tv_szm));
40 tv_show_szm = ((TextView) findViewById(R.id.tv_show_szm));
41
42 lv_show.setOnItemClickListener(new AdapterView.OnItemClickListener() {
43 @Override
44 public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
45 // MainActivity 的startAcitivityForResult
46 Intent intent = getIntent();
47 TextView text1 = (TextView) view.findViewById(android.R.id.text1);
48 intent.putExtra("city", text1.getText());
49 setResult(RESULT_OK, intent);
50 finish();
51 }
52 });
53 lv_show.setOnScrollListener(new AbsListView.OnScrollListener() {
54 @Override
55 public void onScrollStateChanged(AbsListView view, int scrollState) {
56 }
57
58 @Override
59 public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
60 // TextView childAt = (TextView) lv_show.getChildAt(firstVisibleItem);
61 // if (childAt != null) {
62 // 通過城市名得到 首字母並轉換大寫
63 theText = FirstLetter.getFirstLetter(((CitySelect.MyAdapter)lv_show.getAdapter()).getData().get(firstVisibleItem).toCharArray()[0]);
64 tv_szm.setText(theText);
65 // }
66 }
67 });
68
69 common = lv_show.getJsonData(this).getResponseData().getCommon();
70 ArrayList<String> titles = new ArrayList<>();
71 for (int i = 0; i < common.size(); i++) {
72 titles.add(common.get(i).getTitle());
73 }
74 lv_szm = (SlideBar) findViewById(R.id.lv_szm);
75 lv_szm.getTitles(titles);
76 // 接口回調的實現
77 lv_szm.setOnSlideBarCharSelectListener(new SlideBar.OnSlideBarCharSelectListener() {
78
79 @Override
80 public void onCharClick(String selectChar) {
81 tv_show_szm.setText(selectChar);
82 tv_show_szm.setVisibility(View.VISIBLE);
83
84 tv_szm.setText(selectChar);
85 int commonPosition = 0;
86 for (int i = 0; i < common.size(); i++) {
87 if (common.get(i).getTitle().equals(selectChar)) {
88 commonPosition = i;
89 }
90 }
91 int position = 0;
92 for (int j = 0; j < commonPosition; j++) {
93 items = common.get(j).getItems();
94 position += items.size();
95 }
96 // lv_show.smoothScrollToPosition(position); // 帶動畫 顯示 某項 - notifyDataSetChanged() 對其沒影響
97 lv_show.setSelection(position); // 跳轉並使某項為 第一項 - notifyDataSetChanged() 則無效
98 }
99
100 @Override
101 public void onClickUp() {
102 tv_show_szm.setVisibility(View.GONE);
103 }
104 });
105 // ArrayAdapter arrayAdapter = new ArrayAdapter<>(this, R.layout.item_szm, titles);
106 // lv_szm.setAdapter(arrayAdapter);
107 // lv_szm.setOnItemClickListener(new AdapterView.OnItemClickListener() {
108 // @Override
109 // public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
110 // if (lastClickedView == null) {
111 // lastClickedView = view;
112 // }
113 // if (lastClickedView == view) {
114 // } else {
115 // ((TextView) lastClickedView).setTextColor(Color.parseColor("#666666"));
116 // }
117 // ((TextView) view).setTextColor(Color.WHITE);
118 // lastClickedView = view;
119 // }
120 // });
121
122 findViewById(R.id.iv_back).setOnClickListener(new View.OnClickListener() {
123 @Override
124 public void onClick(View v) {
125 finish();
126 }
127 });
128 }
129 }
CityActivity
MainAcitivity.java 實現其余功能: (包含一個DataPicker - 外部包:
compile 'com.github.flavienlaurent.datetimepicker:library:0.0.2'
)
1 package com.dragon.android.cityselect;
2
3 import android.content.Intent;
4 import android.os.Bundle;
5 import android.os.Handler;
6 import android.os.Message;
7 import android.support.v7.app.AppCompatActivity;
8 import android.view.View;
9 import android.widget.TextView;
10
11 import com.dragon.android.cityselect.view.DefineLinearLayout;
12 import com.fourmob.datetimepicker.date.DatePickerDialog;
13 import com.sleepbot.datetimepicker.time.RadialPickerLayout;
14 import com.sleepbot.datetimepicker.time.TimePickerDialog;
15
16 import java.util.Calendar;
17
18 public class MainActivity extends AppCompatActivity {
19
20 private DefineLinearLayout dl_city;
21 private DefineLinearLayout dl_key;
22 private DefineLinearLayout dl_time;
23 private DefineLinearLayout dl_day;
24 public static final int REQUEST_CODE = 0x000;
25
26 private int[] imgs = {R.mipmap.img_city, R.mipmap.img_key_words, R.mipmap.imag_time, R.mipmap.img_days};
27 private String[] titles = {"入住城市", "關鍵字", "入住時間", "入住天數"};
28 private DefineLinearLayout[] dlls;
29
30 private Bundle mSaveInstanceState;
31 private Handler handler;
32
33 @Override
34 protected void onCreate(Bundle savedInstanceState) {
35 super.onCreate(savedInstanceState);
36 setContentView(R.layout.activity_main);
37
38 initView();
39 mSaveInstanceState = savedInstanceState;
40 }
41
42 private void initView() {
43 dl_city = (DefineLinearLayout) findViewById(R.id.dl_city);
44 dl_key = (DefineLinearLayout) findViewById(R.id.dl_key);
45 dl_time = (DefineLinearLayout) findViewById(R.id.dl_time);
46 dl_day = (DefineLinearLayout) findViewById(R.id.dl_day);
47
48 dlls = new DefineLinearLayout[]{dl_city, dl_key, dl_time, dl_day};
49 for (int i = 0; i < dlls.length; i++) {
50 changeDatas(dlls[i], false, imgs[i], titles[i], titles[i]);
51 }
52 getDataPicker();
53 }
54
55 // 修改初始數據
56 private void changeDatas(DefineLinearLayout layout, Boolean isChecked, int imgRes, String title, String title_c) {
57 layout.changeData(isChecked, imgRes, title, title_c);
58 }
59
60 private void changeDatas(DefineLinearLayout layout, Boolean isChecked) {
61 layout.changeData(isChecked);
62 }
63
64 private void changeData(DefineLinearLayout layout, String title_c) {
65 layout.changeData(title_c);
66 }
67
68 private DefineLinearLayout lastLayout;
69
70 // 點擊事件
71 public void click(View v) {
72 if (lastLayout == null) {
73 lastLayout = (DefineLinearLayout) v;
74 }
75 if (v == lastLayout) {
76 } else {
77 changeDatas(lastLayout, false);
78 }
79 changeDatas((DefineLinearLayout) v, true);
80 lastLayout = (DefineLinearLayout) v;
81 switch (v.getId()) {
82 case R.id.dl_city:
83 // 城市選擇
84 startActivityForResult(new Intent(this, CityActivity.class), REQUEST_CODE);
85 break;
86 case R.id.dl_key:
87 break;
88 case R.id.dl_time:
89 new DataPicker().showDataPicker(mSaveInstanceState);
90 isFirstTime = true; // 點擊入住時間
91 break;
92 case R.id.dl_day:
93 new DataPicker().showDataPicker(mSaveInstanceState);
94 isFirstTime = false; // 點擊入住天數
95 break;
96 }
97 }
98
99 @Override
100 protected void onActivityResult(int requestCode, int resultCode, Intent data) {
101 super.onActivityResult(requestCode, resultCode, data);
102 if (requestCode == REQUEST_CODE && resultCode == RESULT_OK) {
103 String city = data.getStringExtra("city");
104 changeData(dl_city, city);
105 }
106 }
107
108 private void getDataPicker() {
109 handler = new Handler(new Handler.Callback() {
110 @Override
111 public boolean handleMessage(Message msg) {
112 switch (msg.what) {
113 case MSG_WHAT:
114 if (isFirstTime) {
115 ((TextView) dl_time.findViewById(R.id.tv_title_c)).setText(msg.obj.toString());
116 } else {
117 ((TextView) dl_day.findViewById(R.id.tv_title_c)).setText(msg.obj.toString());
118 }
119 break;
120 }
121 return false;
122 }
123 });
124 }
125
126 private boolean isFirstTime = false; // 是否點擊入住時間 (否則為 入住天數)
127 private static final int MSG_WHAT = 0x00;
128
129 // DataPicker
130 class DataPicker implements DatePickerDialog.OnDateSetListener, TimePickerDialog.OnTimeSetListener {
131
132 public static final String DATEPICKER_TAG = "datepicker";
133 public static final String TIMEPICKER_TAG = "timepicker";
134 private Calendar calendar;
135 private String mData;
136
137 private void showDataPicker(Bundle savedInstanceState) {
138 calendar = Calendar.getInstance();
139
140 DatePickerDialog datePickerDialog = DatePickerDialog.newInstance(this, calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH), calendar.get(Calendar.DAY_OF_MONTH), false);
141
142 datePickerDialog.setVibrate(false);
143 datePickerDialog.setYearRange(1985, 2028);
144 datePickerDialog.setCloseOnSingleTapDay(false);
145 datePickerDialog.show(getSupportFragmentManager(), DATEPICKER_TAG);
146
147 if (savedInstanceState != null) {
148 DatePickerDialog dpd = (DatePickerDialog) getSupportFragmentManager().findFragmentByTag(DATEPICKER_TAG);
149 if (dpd != null) {
150 dpd.setOnDateSetListener(this);
151 }
152
153 TimePickerDialog tpd = (TimePickerDialog) getSupportFragmentManager().findFragmentByTag(TIMEPICKER_TAG);
154 if (tpd != null) {
155 tpd.setOnTimeSetListener(this);
156 }
157 }
158 }
159
160 @Override
161 public void onDateSet(DatePickerDialog datePickerDialog, int year, int month, int day) {
162 // Toast.makeText(MainActivity.this, "new date:" + year + "-" + month + "-" + day, Toast.LENGTH_LONG).show();
163 // TimePickerDialog timePickerDialog = TimePickerDialog.newInstance(this, calendar.get(Calendar.HOUR_OF_DAY), calendar.get(Calendar.MINUTE), false, false);
164 // timePickerDialog.setVibrate(false);
165 // timePickerDialog.setCloseOnSingleTapMinute(false);
166 // timePickerDialog.show(getSupportFragmentManager(), TIMEPICKER_TAG);
167 Message msg = Message.obtain();
168 msg.obj = year + "-" + month + "-" + day;
169 msg.what = MSG_WHAT;
170 handler.sendMessage(msg);
171 }
172
173 @Override
174 public void onTimeSet(RadialPickerLayout view, int hourOfDay, int minute) {
175 // Toast.makeText(MainActivity.this, "new time:" + hourOfDay + "-" + minute, Toast.LENGTH_LONG).show();
176 }
177 }
178 }
注意?> 要在 Manifest 中定義鍵盤覆蓋, 否則點擊 EditText 會把布局往上推.
1 <activity
2 android:name=".CityActivity"
3 android:windowSoftInputMode="adjustPan|stateHidden"
4 android:configChanges="keyboardHidden|orientation|screenSize" />
程序 Demo: 鏈接：http://pan.baidu.com/s/1geW38GF 密碼：k505
***************很久沒發了,學習實在太累T T...******************
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