編輯:關於Android編程
注:在Edittext和Textview中,不要加下面2個屬性中的任何一種。否則,當行數大於1行以後會發生表情、圖片對不齊的情況
android:lineSpacingExtra="" android:lineSpacingMultiplier=""
效果圖:
輸入:
展示效果:
注:為了舉例,把“我”當成關鍵字,“你”當成要凸顯出來的字。比如搜索“你”,在結果中,把“你”字變紅
把下面的代碼,都復制到自己項目下,改改包名什麼的,就可以直接用了
代碼:
1、布局文件
activity_main_12:
emoji_gridview:
restul_layout:
工具等:
Expressions:
package com.chen.customviewdemo.view; import com.chen.customviewdemo.R; import java.util.ArrayList; import java.util.List; /** * 處理表情 */ public class Expressions { public static ListemojiIdList = new ArrayList (); public static List emojiNameList = new ArrayList (); public static final int[] emojID = new int[]{R.mipmap.emoji_0, R.mipmap.emoji_1, R.mipmap.emoji_2, R.mipmap.emoji_3, R.mipmap.emoji_4, R.mipmap.emoji_5, R.mipmap.emoji_6, R.mipmap.emoji_7, R.mipmap.emoji_8, R.mipmap.emoji_9, R.mipmap.emoji_10, R.mipmap.emoji_11, R.mipmap.emoji_12, R.mipmap.emoji_13, R.mipmap.emoji_14, R.mipmap.emoji_15, R.mipmap.emoji_16, R.mipmap.emoji_17, R.mipmap.emoji_18, R.mipmap.emoji_19, R.mipmap.emoji_20, R.mipmap.emoji_21, R.mipmap.emoji_22, R.mipmap.emoji_23, R.mipmap.emoji_24, R.mipmap.emoji_25, R.mipmap.emoji_26, R.mipmap.emoji_27, R.mipmap.emoji_28, R.mipmap.emoji_29, R.mipmap.emoji_30, R.mipmap.emoji_31, R.mipmap.emoji_32, R.mipmap.emoji_33, R.mipmap.emoji_34, R.mipmap.emoji_35, R.mipmap.emoji_36, R.mipmap.emoji_37, R.mipmap.emoji_38, R.mipmap.emoji_39, R.mipmap.emoji_40, R.mipmap.emoji_41, R.mipmap.emoji_42, R.mipmap.emoji_43, R.mipmap.emoji_44, R.mipmap.emoji_45, R.mipmap.emoji_46, R.mipmap.emoji_47, R.mipmap.emoji_48, R.mipmap.emoji_49, R.mipmap.emoji_50, R.mipmap.emoji_51, R.mipmap.emoji_52, R.mipmap.emoji_53, R.mipmap.emoji_54, R.mipmap.emoji_55, R.mipmap.emoji_56, R.mipmap.emoji_57, R.mipmap.emoji_58, R.mipmap.emoji_59, R.mipmap.emoji_60, R.mipmap.emoji_61, R.mipmap.emoji_62, R.mipmap.emoji_63, R.mipmap.emoji_64, R.mipmap.emoji_65, R.mipmap.emoji_66, R.mipmap.emoji_67, R.mipmap.emoji_68, R.mipmap.emoji_69, R.mipmap.emoji_70, R.mipmap.emoji_71, R.mipmap.emoji_72, R.mipmap.emoji_73, R.mipmap.emoji_74, R.mipmap.emoji_75, R.mipmap.emoji_76, R.mipmap.emoji_77, R.mipmap.emoji_78, R.mipmap.emoji_79, R.mipmap.emoji_80, R.mipmap.emoji_81, R.mipmap.emoji_82, R.mipmap.emoji_83, R.mipmap.emoji_84, R.mipmap.emoji_85, R.mipmap.emoji_86, R.mipmap.emoji_87, R.mipmap.emoji_88, R.mipmap.emoji_89, R.mipmap.emoji_90, R.mipmap.emoji_91, R.mipmap.emoji_92, R.mipmap.emoji_93, R.mipmap.emoji_94, R.mipmap.emoji_95, R.mipmap.emoji_96, R.mipmap.emoji_97, R.mipmap.emoji_98, R.mipmap.emoji_99, R.mipmap.emoji_100, R.mipmap.emoji_101, R.mipmap.emoji_102, R.mipmap.emoji_103, R.mipmap.emoji_104}; public static final String[] emojName = new String[]{"[/微笑]", "[/撇嘴]", "[/色]", "[/發呆]", "[/得意]", "[/流淚]", "[/害羞]", "[/閉嘴]", "[/睡]", "[/大哭]", "[/尴尬]", "[/發怒]", "[/調皮]", "[/呲牙]", "[/驚訝]", "[/難過]", "[/酷]", "[/冷汗]", "[/抓狂]", "[/吐]", "[/偷笑]", "[/可愛]", "[/白眼]", "[/傲慢]", "[/饑餓]", "[/困]", "[/驚恐]", "[/流汗]", "[/憨笑]", "[/大兵]", "[/奮斗]", "[/咒罵]", "[/疑問]", "[/噓...]", "[/暈]", "[/折磨]", "[/衰]", "[/骷髅]", "[/敲打]", "[/再見]", "[/擦汗]", "[/摳鼻]", "[/鼓掌]", "[/糗大了]", "[/壞笑]", "[/左哼哼]", "[/右哼哼]", "[/哈欠]", "[/鄙視]", "[/委屈]", "[/快哭了]", "[/陰險]", "[/親親]", "[/嚇]", "[/可憐]", "[/菜刀]", "[/西瓜]", "[/啤酒]", "[/籃球]", "[/乒乓]", "[/咖啡]", "[/飯]", "[/豬頭]", "[/玫瑰]", "[/凋謝]", "[/示愛]", "[/愛心]", "[/心碎]", "[/蛋糕]", "[/閃電]", "[/炸彈]", "[/刀]", "[/足球]", "[/瓢蟲]", "[/便便]", "[/月亮]", "[/太陽]", "[/禮物]", "[/擁抱]", "[/強]", "[/弱]", "[/握手]", "[/勝利]", "[/抱拳]", "[/勾引]", "[/拳頭]", "[/差勁]", "[/愛你]", "[/NO]", "[/OK]", "[/愛情]", "[/飛吻]", "[/跳跳]", "[/發抖]", "[/怄火]", "[/轉圈]", "[/磕頭]", "[/回頭]", "[/跳繩]", "[/揮手]", "[/激動]", "[/街舞]", "[/獻吻]", "[/左太極]", "[/右太極]"}; static { emojiIdList.add(emojID); emojiNameList.add(emojName); } /** * 由表情名稱獲得表情圖片id * * @param name * @return */ public static int getIdAsName(String name) throws NullPointerException { for (int i = 0; i < emojName.length; i++) { if (emojName[i].equals(name)) { return emojID[i]; } } return 0; } }
EmotionBean
package com.chen.customviewdemo.bean; /** * 表情bean */ public class EmotionBean { private int Id; // 表情對應的Id private String Name; // 表情對應的名字 public int getId() { return Id; } public void setId(int id) { Id = id; } public String getName() { return Name; } public void setName(String name) { Name = name; } }
KeyBean
package com.chen.customviewdemo.bean; /** * 關鍵字bean。 * 包含顯式內容和隱式內容。 * 如:在界面上顯示“百度”,點擊了它,就去一個界面打開百度的網頁。要打開網頁,肯定需要Url。這就需要,在點擊的時候,把Url傳遞過去。 * 這個時候,這個Url,就是隱式內容了。不必讓用戶看到,只是在觸發後,隱含的做一定操作就行 */ public class KeyBean { public KeyBean(String content, String hide_content) { this.content = content; this.hide_content = hide_content; } /** * 內容 */ public String content; /** * 隱藏的內容,點擊內容後,要傳遞的值或者要做的事 */ public String hide_content; public String getContent() { return content; } public void setContent(String content) { this.content = content; } public String getHide_content() { return hide_content; } public void setHide_content(String hide_content) { this.hide_content = hide_content; } }
ExpressionUtil
package com.chen.customviewdemo.utils; import android.content.Context; import android.graphics.drawable.Drawable; import android.text.Spannable; import android.text.SpannableString; import android.text.style.ImageSpan; import com.chen.customviewdemo.view.Expressions; import java.util.regex.Matcher; import java.util.regex.Pattern; public class ExpressionUtil { public static SpannableString getSpannableString(String str, Context context, int size) { SpannableString spannableString = new SpannableString(str); String string = "\\[(.+?)\\]"; Pattern patten = Pattern.compile(string, Pattern.CASE_INSENSITIVE); try { dealSpannableString(context, spannableString, patten, 0, size); } catch (Exception e) { } return spannableString; } private static void dealSpannableString(Context context, SpannableString spannableString, Pattern patten, int start, int emojiSize) { Matcher matcher = patten.matcher(spannableString); while (matcher.find()) { String key = matcher.group(); if (matcher.start() < start) { continue; } int id = Expressions.getIdAsName(key); if (id != 0) { Drawable drawable = context.getResources().getDrawable(id); drawable.setBounds(0, 0, Utils.sp2px(context, emojiSize), Utils.sp2px(context, emojiSize)); ImageSpan imgSpan = new ImageSpan(drawable); int end = matcher.start() + key.length(); spannableString.setSpan(imgSpan, matcher.start(), end, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); if (end < spannableString.length()) { //如果整個字符串還未驗證完,則繼續。。 dealSpannableString(context, spannableString, patten, end, emojiSize); } break; } } } }
Utils
package com.chen.customviewdemo.utils; import android.app.Activity; import android.content.Context; import android.text.TextUtils; import android.util.DisplayMetrics; /** * 工具類 */ public class Utils { /** * 檢查字符串是否是空 * * @param str * @return true:字符串為空 */ public static boolean checkStringIsEmpty(String str) { if (TextUtils.isEmpty(str) || "null".equals(str)) { return true; } else { return false; } } /** * 將sp值轉換為px值 */ public static int sp2px(Context context, float spValue) { final float fontScale = context.getResources().getDisplayMetrics().scaledDensity; return (int) (spValue * fontScale + 0.5f); } }
CHEN
package com.chen.customviewdemo.utils; /** * 用於保存全局變量值 */ public class CHEN { /** * 要被傳遞的文字 */ public static String Str = ""; /** * 要變紅的字。一般用於搜索,如:把搜索的字變為紅色用於突出顯示 */ public static String toRedWord = ""; /** * 網址要被替換成的文字 */ public static String REPLACEMENT_STRING = "*點擊鏈接"; /** * 匹配網址的正則表達式。以http://為例 */ public static String urlRegex = "(http://[a-zA-Z0-9\\.\\-]+\\.([a-zA-Z]{2,4})(:\\d+)?(/[a-zA-Z0-9\\.\\-~!@#$%^&*+?:_/=<>,]*)?)|(www.[a-zA-Z0-9\\.\\-]+\\.([a-zA-Z]{2,4})(:\\d+)?(/[a-zA-Z0-9\\.\\-~!@#$%^&*+?:_/=<>,]*)?)|([a-zA-Z0-9\\.\\-]+\\.([a-zA-Z]{2,4})(:\\d+)?(/[a-zA-Z0-9\\.\\-~!@#$%^&*+?:_/=<>,]*)?)"; /** * 匹配網址的正則表達式。有http://、https://、ftp://這3中開頭的 */ // public static String urlRegex = "((http[s]{0,1}|ftp)://[a-zA-Z0-9\\.\\-]+\\.([a-zA-Z]{2,4})(:\\d+)?(/[a-zA-Z0-9\\.\\-~!@#$%^&*+?:_/=<>,]*)?)|(www.[a-zA-Z0-9\\.\\-]+\\.([a-zA-Z]{2,4})(:\\d+)?(/[a-zA-Z0-9\\.\\-~!@#$%^&*+?:_/=<>,]*)?)|([a-zA-Z0-9\\.\\-]+\\.([a-zA-Z]{2,4})(:\\d+)?(/[a-zA-Z0-9\\.\\-~!@#$%^&*+?:_/=<>,]*)?)"; }
EmotionGridViewAdapter
package com.chen.customviewdemo.adapter; import android.app.Activity; import android.content.Context; import android.util.DisplayMetrics; import android.view.View; import android.view.ViewGroup; import android.widget.AbsListView.LayoutParams; import android.widget.BaseAdapter; import android.widget.ImageView; import android.widget.ImageView.ScaleType; import com.chen.customviewdemo.R; import com.chen.customviewdemo.bean.EmotionBean; import com.chen.customviewdemo.view.Expressions; import java.util.ArrayList; import java.util.List; /** * 每一個表情頁的adapter */ public class EmotionGridViewAdapter extends BaseAdapter { private Listlist; private Context context; private String tag; public EmotionGridViewAdapter(Context context, int page) { this.context = context; this.list = new ArrayList (); setData1(page); } private void setData1(int page) { switch (page) { case 0: case 1: case 2: case 3: case 4: int len = 20; // 每頁顯示20個表情,一個刪除鍵 for (int i = 0 + (len * page); i < len + (len * page); i++) { EmotionBean bean = new EmotionBean(); bean.setId(Expressions.emojID[i]); bean.setName(Expressions.emojName[i]); list.add(bean); } EmotionBean bean = new EmotionBean(); bean.setId(R.mipmap.emoji_del); list.add(bean); break; case 5: // 最後一頁,顯示5個表情和一個刪除鍵 for (int i = 100; i < 105; i++) { EmotionBean bean1 = new EmotionBean(); bean1.setId(Expressions.emojID[i]); bean1.setName(Expressions.emojName[i]); list.add(bean1); } EmotionBean bean1 = new EmotionBean(); bean1.setId(R.mipmap.emoji_del); list.add(bean1); break; } } public void setData(List list) { this.list = list; } @Override public int getCount() { return list.size(); } @Override public Object getItem(int position) { return list.get(position); } @Override public long getItemId(int position) { return position; } @Override public View getView(int position, View convertView, ViewGroup parent) { final EmotionBean bean = list.get(position); int itemWidth = getWindowPX(); int padding = itemWidth / 6; ImageView iv = new ImageView(context); LayoutParams params = new LayoutParams(itemWidth, itemWidth); iv.setLayoutParams(params); iv.setScaleType(ScaleType.FIT_CENTER); iv.setPadding(padding, 0, padding, 0); iv.setImageResource(bean.getId()); return iv; } private int getWindowPX() { Activity activity; if (context instanceof Activity) { activity = (Activity) context; DisplayMetrics dm = new DisplayMetrics(); activity.getWindowManager().getDefaultDisplay().getMetrics(dm); int width = dm.widthPixels; return width / 8; } else { return 200; } } }
ShowEmojiViewPagerAdapter
package com.chen.customviewdemo.adapter; import android.support.v4.view.PagerAdapter; import android.view.View; import android.view.ViewGroup; import android.widget.GridView; import java.util.List; /** * 展示表情的viewpager的adapter */ public class ShowEmojiViewPagerAdapter extends PagerAdapter { private ListmGridlist; public ShowEmojiViewPagerAdapter(List mList) { super(); this.mGridlist = mList; } @Override public int getCount() { return mGridlist.size(); } @Override public boolean isViewFromObject(View arg0, Object arg1) { return arg0==arg1; } @Override public void destroyItem(View container, int position, Object object) { ((ViewGroup)container).removeView(mGridlist.get(position)); } @Override public Object instantiateItem(View container, int position) { ((ViewGroup)container).addView(mGridlist.get(position)); return mGridlist.get(position); } }
MyTextView
package com.chen.customviewdemo.view; import android.content.Context; import android.graphics.drawable.Drawable; import android.text.SpannableString; import android.text.Spanned; import android.text.TextPaint; import android.text.TextUtils; import android.text.method.LinkMovementMethod; import android.text.style.ClickableSpan; import android.text.style.ImageSpan; import android.util.AttributeSet; import android.view.View; import android.widget.TextView; import android.widget.Toast; import com.chen.customviewdemo.R; import com.chen.customviewdemo.bean.KeyBean; import com.chen.customviewdemo.utils.CHEN; import com.chen.customviewdemo.utils.ExpressionUtil; import com.chen.customviewdemo.utils.Utils; import java.util.ArrayList; import java.util.regex.Matcher; import java.util.regex.Pattern; /** * 自定義textview,用於處理url、表情、文字等 */ public class MyTextView extends TextView { private Context context = null; public MyTextView(Context context, AttributeSet attr) { super(context, attr); this.context = context; } public MyTextView(Context context) { super(context); this.context = context; } /** * TextView顯示有顏色的字,並添加點擊事件,適用於一段文字中有多個內容要處理 */ public void handleText(String str, final ArrayListkeyBeanList, int size) { String content = str; //處理匹配的url Pattern p = Pattern.compile(CHEN.urlRegex); Matcher m = p.matcher(content); ArrayList urlList = new ArrayList (); while (m.find()) { String urlStr = m.group(); if (urlStr.contains("http://")) { //如果末尾有英文逗號或者中文逗號等,就去掉 while (urlStr.endsWith(",") || urlStr.endsWith(",") || urlStr.endsWith(".") || urlStr.endsWith("。") || urlStr.endsWith(";") || urlStr.endsWith(";") || urlStr.endsWith("!") || urlStr.endsWith("!") || urlStr.endsWith("?") || urlStr.endsWith("?")) { urlStr = urlStr.substring(0, urlStr.length() - 1); } urlList.add(urlStr); content = content.replace(urlStr, CHEN.REPLACEMENT_STRING); } } final SpannableString spannableString = ExpressionUtil.getSpannableString(content, context, size); content = spannableString.toString(); //處理鏈接 if (urlList.size() > 0) { int urlStartNew = 0; int urlStartOld = 0; String urlTemp = content; for (int i = 0; i < urlList.size(); i++) { final String regexUrl = urlList.get(i); spannableString.setSpan(new ClickableSpan() { @Override public void updateDrawState(TextPaint ds) { // TODO Auto-generated method stub super.updateDrawState(ds); ds.setColor(context.getResources().getColor(R.color.linkcolor)); ds.setUnderlineText(false); } @Override public void onClick(View widget) { Toast.makeText(context, regexUrl, Toast.LENGTH_SHORT).show(); } }, urlStartOld + urlTemp.indexOf(CHEN.REPLACEMENT_STRING), urlStartOld + urlTemp.indexOf(CHEN.REPLACEMENT_STRING) + CHEN.REPLACEMENT_STRING.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); try { //“點擊鏈接”前面的回形針圖片。大小可自己調整 Drawable drawable = context.getResources().getDrawable(R.mipmap.web_link); drawable.setBounds(0, 0, Utils.sp2px(context, size), Utils.sp2px(context, size)); ImageSpan imgSpan = new ImageSpan(drawable); spannableString.setSpan(imgSpan, urlStartOld + urlTemp.indexOf(CHEN.REPLACEMENT_STRING), urlStartOld + urlTemp.indexOf(CHEN.REPLACEMENT_STRING) + 1, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); } catch (Exception e) { //異常以後,就不加小圖片了 } setText(spannableString); setMovementMethod(LinkMovementMethod.getInstance()); urlStartNew = urlTemp.indexOf(CHEN.REPLACEMENT_STRING) + CHEN.REPLACEMENT_STRING.length(); urlStartOld += urlStartNew; urlTemp = urlTemp.substring(urlStartNew); } } //處理文本中的關鍵字 if (keyBeanList != null && keyBeanList.size() > 0) { for (int i = 0; i < keyBeanList.size(); i++) { final String data = keyBeanList.get(i).getContent(); final String hide_content = keyBeanList.get(i).getHide_content(); String temp = content; int startNew = 0; int startOld = 0; if (temp.contains(data)) { while (temp.contains(data)) { spannableString.setSpan(new ClickableSpan() { @Override public void updateDrawState(TextPaint ds) { // TODO Auto-generated method stub super.updateDrawState(ds); ds.setColor(context.getResources().getColor(R.color.linkcolor)); ds.setUnderlineText(false); } @Override public void onClick(View widget) { Toast.makeText(context, hide_content, Toast.LENGTH_SHORT).show(); } }, startOld + temp.indexOf(data), startOld + temp.indexOf(data) + data.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); setText(spannableString); setMovementMethod(LinkMovementMethod.getInstance()); startNew = temp.indexOf(data) + data.length(); startOld += startNew; temp = temp.substring(startNew); } } else { setText(spannableString); } } } else { setText(spannableString); } //處理要變紅的字 if (!TextUtils.isEmpty(CHEN.toRedWord)) { //只要把關鍵字變紅就行了,不需要加點擊事件。如果需要,可以自己加 String temp = content; int startNew = 0; int startOld = 0; while (temp.contains(CHEN.toRedWord)) { spannableString.setSpan(new ClickableSpan() { @Override public void updateDrawState(TextPaint ds) { // TODO Auto-generated method stub super.updateDrawState(ds); ds.setColor(0xffff0000); ds.setUnderlineText(false); } @Override public void onClick(View widget) { } }, startOld + temp.indexOf(CHEN.toRedWord), startOld + temp.indexOf(CHEN.toRedWord) + CHEN.toRedWord.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); setText(spannableString); setMovementMethod(LinkMovementMethod.getInstance()); startNew = temp.indexOf(CHEN.toRedWord) + CHEN.toRedWord.length(); startOld += startNew; temp = temp.substring(startNew); } } else { setText(spannableString); } } }
Activity中使用
BaseActivity
package com.chen.customviewdemo; import android.app.Activity; import android.os.Bundle; import android.view.Window; /** * 基礎Activity */ public abstract class BaseActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); //不顯示title requestWindowFeature(Window.FEATURE_NO_TITLE); initview(); } abstract void initview(); }
MainActivity_12
package com.chen.customviewdemo; import android.app.Instrumentation; import android.content.Context; import android.content.Intent; import android.support.v4.view.ViewPager; import android.text.Editable; import android.text.SpannableString; import android.text.TextUtils; import android.text.TextWatcher; import android.view.KeyEvent; import android.view.LayoutInflater; import android.view.View; import android.view.inputmethod.InputMethodManager; import android.widget.AdapterView; import android.widget.EditText; import android.widget.GridView; import android.widget.ImageView; import android.widget.TextView; import com.chen.customviewdemo.adapter.EmotionGridViewAdapter; import com.chen.customviewdemo.adapter.ShowEmojiViewPagerAdapter; import com.chen.customviewdemo.utils.CHEN; import com.chen.customviewdemo.utils.ExpressionUtil; import com.chen.customviewdemo.view.Expressions; import java.util.ArrayList; import java.util.List; import java.util.regex.Matcher; import java.util.regex.Pattern; /** * 輸入文字和表情的界面 */ public class MainActivity_12 extends BaseActivity implements View.OnClickListener { private Context mContext; // 表情 private ImageView iv_expression; // 顯示表情的ViewPager private ViewPager show_emoji_viewPager; // 裝載表情的viewPager的Adapter private ShowEmojiViewPagerAdapter showEmojiViewPagerAdapter; /** * 裝載表情的viewPager的Adapter的每一頁,都是一個gridview,這些gridview,用集合管理起來 */ private ListmGridList; /** * 文本輸入框 */ private EditText et_word_message; /** * 當前是否顯示表情鍵盤 */ private boolean isShowEmotion = false; private final String reg = "^[\u4e00-\u9fa5\u0020-\u007E\uFE30-\uFFA0。、……“”‘’《》——¥~]*$"; private Pattern pattern = Pattern.compile(reg); /** * 顯示動態的剩余字數 */ private TextView tv_show_residue_num; /** * 動態內容剩余字數。以300為例 */ private int dynamicContentResidueNum = 300; /** * 展示輸入結果的按鈕 */ private TextView show_result_tv; /** * 動態輸入框的監聽 */ private TextWatcher watcher = new TextWatcher() { @Override public void beforeTextChanged(CharSequence s, int start, int count, int after) { } @Override public void onTextChanged(CharSequence s, int start, int before, int count) { String dynicContent = s.toString(); int contentCount = dynicContent.length(); if (TextUtils.isEmpty(dynicContent) || contentCount < 250) { tv_show_residue_num.setText(""); dynamicContentResidueNum = 300; } else if (contentCount >= 250 && contentCount <= dynamicContentResidueNum) { int tempCount = dynamicContentResidueNum - contentCount; tv_show_residue_num.setText("還能輸入" + tempCount + "字"); } else if (contentCount > dynamicContentResidueNum) { tv_show_residue_num.setText(dynamicContentResidueNum - contentCount + ""); } } @Override public void afterTextChanged(Editable s) { } }; @Override void initview() { setContentView(R.layout.activity_main_12); mContext = this; //默認。以此為例 CHEN.toRedWord = "你"; show_result_tv = (TextView) findViewById(R.id.show_result_tv); mGridList = new ArrayList (); mGridList.clear(); tv_show_residue_num = (TextView) findViewById(R.id.tv_show_residue_num); iv_expression = (ImageView) findViewById(R.id.iv_expression); iv_expression.setBackgroundResource(R.mipmap.biao_qing); show_emoji_viewPager = (ViewPager) findViewById(R.id.show_emoji_viewPager); initGridViews(); // 填充 表情的ViewPager的adapter showEmojiViewPagerAdapter = new ShowEmojiViewPagerAdapter(mGridList); show_emoji_viewPager.setAdapter(showEmojiViewPagerAdapter); et_word_message = (EditText) findViewById(R.id.et_word_message); et_word_message.addTextChangedListener(watcher); iv_expression.setOnClickListener(this); show_result_tv.setOnClickListener(this); et_word_message.setOnClickListener(this); } /** * 初始化表情鍵盤的Grideview */ private void initGridViews() { mGridList = new ArrayList (); LayoutInflater inflater = LayoutInflater.from(mContext); mGridList.clear(); for (int i = 0; i < 6; i++) { final int j = i; GridView gridView = (GridView) inflater.inflate( R.layout.emoji_gridview, null); gridView.setAdapter(new EmotionGridViewAdapter(mContext, i)); mGridList.add(gridView); gridView.setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView parent, View view, int position, long id) { if (position == 20 || position == 40 || position == 60 || position == 80 || position == 100 || (j == 5 && position == 5)) {//處理刪除鍵 int selectionStart = et_word_message.getSelectionStart(); String text = et_word_message.getText().toString(); if (!TextUtils.isEmpty(text)) { String body = et_word_message.getText().toString(); String tempStr = body.substring(0, selectionStart); int i = tempStr.lastIndexOf("]");// 獲取最後一個表情的位置 if (i == tempStr.length() - 1) {// 說明光標剛好停在這個表情之後 int j = tempStr.lastIndexOf("[");// 將這兩個之間的字符刪掉 et_word_message.getEditableText().delete(j, selectionStart); } else { Matcher matcher = pattern.matcher(text); if (!matcher.matches()) { new Thread(new Runnable() { @Override public void run() { Instrumentation instrumentation = new Instrumentation(); instrumentation.sendKeyDownUpSync(KeyEvent.KEYCODE_DEL); } }) { }.start(); } else { et_word_message.getEditableText().delete( tempStr.length() - 1, selectionStart); } } } } else { //表情會被轉換成字符串。防止最後輸入一個表情,超出字數顯示 if ((300 - et_word_message.getText().toString().trim().length()) < 5) { return; } String emotionString = Expressions.emojName[position + j * 20]; String text = et_word_message.getText() + emotionString; SpannableString spannableString = ExpressionUtil .getSpannableString(text, mContext, 23); et_word_message.setText(spannableString); Editable b = et_word_message.getText(); et_word_message.setSelection(b.length()); } } }); } showEmojiViewPagerAdapter = new ShowEmojiViewPagerAdapter(mGridList); show_emoji_viewPager.setAdapter(showEmojiViewPagerAdapter); } @Override public void onClick(View v) { switch (v.getId()) { case R.id.iv_expression: // 點擊表情的按鈕,彈出表情 if (isShowEmotion) { iv_expression.setBackgroundResource(R.mipmap.biao_qing); show_emoji_viewPager.setVisibility(View.GONE); showKeyBoard(); } else if (!isShowEmotion) { iv_expression.setBackgroundResource(R.mipmap.keyboard); show_emoji_viewPager.setVisibility(View.VISIBLE); hideKeyBoard(v); } isShowEmotion = !isShowEmotion; break; case R.id.et_word_message: if (isShowEmotion) { iv_expression.setBackgroundResource(R.mipmap.biao_qing); show_emoji_viewPager.setVisibility(View.GONE); forceShowKeyBoard(et_word_message); isShowEmotion = !isShowEmotion; } break; case R.id.show_result_tv: //去展示結果的界面 CHEN.Str = et_word_message.getText().toString().trim(); startActivity(new Intent(this, ShowWordAndEmojiDataActivity.class)); break; default: break; } } /** * 強制顯示軟鍵盤 */ public void forceShowKeyBoard(View v) { InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE); imm.showSoftInput(v, InputMethodManager.SHOW_FORCED); } /** * 隱藏軟鍵盤 * @param v */ public void hideKeyBoard(View v) { InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE); imm.hideSoftInputFromWindow(v.getWindowToken(), 0); } /** * 顯示軟鍵盤 */ public void showKeyBoard() { InputMethodManager inputManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE); inputManager.toggleSoftInput(0, InputMethodManager.HIDE_NOT_ALWAYS); } }
ShowWordAndEmojiDataActivity
package com.chen.customviewdemo; import com.chen.customviewdemo.bean.KeyBean; import com.chen.customviewdemo.utils.CHEN; import com.chen.customviewdemo.view.MyTextView; import java.util.ArrayList; /** * 展示輸入結果的Activity */ public class ShowWordAndEmojiDataActivity extends BaseActivity { MyTextView result_tv; ArrayListkeyBeanList; @Override void initview() { setContentView(R.layout.restul_layout); keyBeanList = new ArrayList (); //還有關鍵字的話,可以繼續加 keyBeanList.add(new KeyBean("我", "哈哈")); result_tv = (MyTextView) findViewById(R.id.result_tv); result_tv.handleText(CHEN.Str, keyBeanList, 23); } @Override protected void onDestroy() { super.onDestroy(); CHEN.toRedWord = ""; } }
清單文件:
1.下載repo信息mkdir ~/binPATH=~/bin:$PATH //放到環境變量中cd ~/bingit clone git://aosp.tuna.tsin
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PS: 入門階段,加上是Android菜鳥,所以先閱讀他們的文檔作為學習,幸好他們的文檔寫得夠詳細,非常適合我這種小白菜鳥用戶。我主要是看他們的developer_gui
實現原理(1)首先獲得下載文件的長度,然後設置本地文件的長度。(2)根據文件長度和線程數計算每條線程下載的數據長度和下載位置。如:文件的長度為6M,線程數為3,那麼,每條