編輯:關於android開發
1 package com.lixu.tongxunlu; 2 3 import java.util.ArrayList; 4 import com.lixu.tongxunlu.PinnedSectionListView.PinnedSectionListAdapter; 5 import android.app.Activity; 6 import android.content.ContentResolver; 7 import android.content.Context; 8 import android.content.Intent; 9 import android.database.Cursor; 10 import android.graphics.Color; 11 import android.net.Uri; 12 import android.os.Bundle; 13 import android.provider.ContactsContract; 14 import android.view.LayoutInflater; 15 import android.view.View; 16 import android.view.ViewGroup; 17 import android.view.Window; 18 import android.view.WindowManager; 19 import android.widget.AdapterView; 20 import android.widget.AdapterView.OnItemClickListener; 21 import android.widget.ArrayAdapter; 22 import android.widget.TextView; 23 24 public class MainActivity extends Activity { 25 private ArrayList<Contacts> contacts; 26 private ArrayList<Data> data; 27 28 @Override 29 protected void onCreate(Bundle savedInstanceState) { 30 super.onCreate(savedInstanceState); 31 // 去掉標題頭 32 requestWindowFeature(Window.FEATURE_NO_TITLE); 33 setContentView(R.layout.activity_main); 34 // 設置程序全屏 35 toggleFullscreen(true); 36 37 data = new ArrayList<Data>(); 38 contacts = new ArrayList<Contacts>(); 39 // 獲取手機聯系人後裝到contacts中 40 getcontacts(contacts); 41 42 int A = (int) 'A'; 43 for (int i = 0; i < 26; i++) { 44 int letter = A + i; 45 char c = (char) letter; 46 47 Data group = new Data(); 48 49 group.type = Data.GROUP; 50 group.text = c + ""; 51 data.add(group); 52 for (int j = 0; j < contacts.size(); j++) { 53 Contacts cc = contacts.get(j); 54 String ss = cc.firstLetterofNmae(); 55 // 判斷聯系人名字首字母是否和組名字母一樣,一樣後加入本組 56 if (ss.equals(group.text)) { 57 Data child = new Data(); 58 child.type = Data.CHILD; 59 child.text = cc.name + "" + cc.getPhoneNumbers(); 60 child.contacts = cc; 61 data.add(child); 62 } 63 64 } 65 66 } 67 68 PinnedSectionListView pslv = (PinnedSectionListView) findViewById(R.id.pslv); 69 70 pslv.setAdapter(new MyAdapter(this, -1)); 71 72 pslv.setOnItemClickListener(new OnItemClickListener() { 73 74 @Override 75 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 76 // 判斷點擊子菜單才會觸發點擊事件 77 if (data.get(position).type == Data.CHILD) { 78 Data datas = data.get(position); 79 Contacts contact = datas.contacts; 80 // 獲取電話號碼 81 String number = contact.getPhoneNumbers(); 82 83 Intent intent = new Intent(Intent.ACTION_CALL, Uri.parse("tel:" + number)); 84 startActivity(intent); 85 } 86 } 87 }); 88 89 } 90 91 // 設置程序全屏的方法 92 public void toggleFullscreen(boolean fullScreen) { 93 // fullScreen為true時全屏 94 95 WindowManager.LayoutParams attrs = getWindow().getAttributes(); 96 97 if (fullScreen) { 98 attrs.flags |= WindowManager.LayoutParams.FLAG_FULLSCREEN; 99 } else { 100 attrs.flags &= ~WindowManager.LayoutParams.FLAG_FULLSCREEN; 101 } 102 103 getWindow().setAttributes(attrs); 104 } 105 106 private class Data { 107 public static final int GROUP = 0; 108 public static final int CHILD = 1; 109 public static final int STYE = 2; 110 public String text; 111 public int type; 112 public Contacts contacts = null; 113 114 } 115 116 private class MyAdapter extends ArrayAdapter implements PinnedSectionListAdapter { 117 private LayoutInflater flater; 118 119 public MyAdapter(Context context, int resource) { 120 super(context, resource); 121 flater = LayoutInflater.from(context); 122 } 123 124 @Override 125 public int getCount() { 126 return data.size(); 127 } 128 129 @Override 130 public Object getItem(int position) { 131 return data.get(position); 132 } 133 134 @Override 135 public int getItemViewType(int position) { 136 return data.get(position).type; 137 } 138 139 @Override 140 public int getViewTypeCount() { 141 return Data.STYE; 142 } 143 144 @Override 145 public View getView(int position, View convertView, ViewGroup parent) { 146 int type = getItemViewType(position); 147 Data data = (Data) getItem(position); 148 switch (type) { 149 case Data.GROUP: 150 if (convertView == null) 151 convertView = flater.inflate(android.R.layout.simple_list_item_1, null); 152 153 TextView tv = (TextView) convertView.findViewById(android.R.id.text1); 154 tv.setBackgroundColor(Color.GREEN); 155 tv.setTextSize(35); 156 tv.setText(data.text); 157 158 break; 159 160 case Data.CHILD: 161 if (convertView == null) 162 convertView = flater.inflate(android.R.layout.simple_list_item_1, null); 163 164 TextView tv1 = (TextView) convertView.findViewById(android.R.id.text1); 165 tv1.setTextSize(20); 166 tv1.setText(data.text); 167 168 break; 169 170 default: 171 break; 172 } 173 return convertView; 174 } 175 176 @Override 177 public boolean isItemViewTypePinned(int viewType) { 178 boolean type = false; 179 switch (viewType) { 180 case Data.CHILD: 181 182 type = false; 183 184 break; 185 186 case Data.GROUP: 187 188 type = true; 189 190 break; 191 192 default: 193 break; 194 } 195 return type; 196 } 197 198 } 199 200 // 獲取手機聯系人的方法 201 private void getcontacts(ArrayList<Contacts> contacts) { 202 Uri uri = Uri.parse("content://com.android.contacts/contacts"); 203 ContentResolver resolver = this.getContentResolver(); 204 // 給query傳遞一個SORT_KEY_PRIMARY,讓ContentResolver將獲得的數據按照聯系人名字首字母排序 205 Cursor cursor = resolver.query(uri, null, null, null, 206 android.provider.ContactsContract.Contacts.SORT_KEY_PRIMARY); 207 while (cursor.moveToNext()) { 208 // 聯系人的id 209 String id = cursor.getString(cursor.getColumnIndex(android.provider.ContactsContract.Contacts._ID)); 210 // 將聯系人按姓名首字母分組 211 String sort_key_primary = cursor 212 .getString(cursor.getColumnIndex(android.provider.ContactsContract.Contacts.SORT_KEY_PRIMARY)); 213 // 獲取聯系人的名字 214 String name = cursor 215 .getString(cursor.getColumnIndex(android.provider.ContactsContract.Contacts.DISPLAY_NAME)); 216 Contacts mContacts = new Contacts(); 217 mContacts.id = id; 218 mContacts.name = name; 219 mContacts.sort_key_primary = sort_key_primary; 220 // 獲取聯系人手機號碼 221 Cursor phone = resolver.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, 222 ContactsContract.CommonDataKinds.Phone.CONTACT_ID + "=" + id, null, null); 223 // 將獲取到的號碼遍歷 224 ArrayList<String> phonenumbers = new ArrayList<String>(); 225 while (phone.moveToNext()) { 226 int phoneFieldColumnIndex = phone.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER); 227 String phonenumber = phone.getString(phoneFieldColumnIndex); 228 phonenumbers.add(phonenumber); 229 } 230 mContacts.phonenumbers = phonenumbers; 231 contacts.add(mContacts); 232 233 } 234 } 235 236 private class Contacts { 237 public String id; 238 public String name; 239 public String sort_key_primary; 240 public ArrayList<String> phonenumbers; 241 242 // 獲取漢字首字母轉換成大寫字母 243 public String firstLetterofNmae() { 244 String s = sort_key_primary.charAt(0) + ""; 245 return s.toUpperCase(); 246 247 } 248 249 public String getPhoneNumbers() { 250 String phones = ""; 251 for (int i = 0; i < phonenumbers.size(); i++) { 252 phones += ":" + phonenumbers.get(i); 253 } 254 return phones; 255 256 } 257 } 258 259 }
xml文件:
不要忘記添加各種權限。
1 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 2 xmlns:tools="http://schemas.android.com/tools" 3 android:layout_width="match_parent" 4 android:layout_height="match_parent" 5 android:padding="10dp" > 6 7 <com.lixu.tongxunlu.PinnedSectionListView 8 android:id="@+id/pslv" 9 android:layout_width="wrap_content" 10 android:layout_height="wrap_content" /> 11 12 </RelativeLayout>
效果示例圖:
來自GitHub的Android UI開源項目,githubandroid最近在搞Android開發,做了一個項目後感覺,Android開發入門很是簡單,但要能做出用戶體
Android 創建一個新的Activity,androidactivity本文轉載自:http://www.cnblogs.com/wuyudong/p/5658020
安卓客戶端a標簽長按彈框提示解決辦法,安卓標簽昨天工作時候發現一個bug,是關於a標簽的,在安卓客戶端中,如果是a標簽的話,長按會出現一個彈框,如圖所示 是因為安卓客戶端
Android 繪圖機制:canvas初解 Canvas 即“畫布”的意思,在Android中用其來進行2D繪畫。 在使用can