android 入门学习笔记电话簿查询

末蓝、 2021-09-12 03:18 257阅读 0赞

/*必须引用database.Cursor,Contacts.People
    与 net.uri等类来使用联系人数据*/
    import android.database.Cursor; 
    import android.net.Uri; 
    import android.provider.Contacts.People;

/*建构Uri来取得联系人的资源位置*/
            Uri uri = Uri.parse("content://contacts/people"); 
            /*通过Intent来取得联系人数据并返回所选的值*/
            Intent intent = new Intent(Intent.ACTION_PICK, uri);
            /*打开新的Activity并期望该Activity返回值*/
            startActivityForResult(intent, PICK_CONTACT_SUBACTIVITY);

@Override 
      protected void onActivityResult 
    (int requestCode, int resultCode, Intent data) 
      { 
        // TODO Auto-generated method stub 
        switch (requestCode) 
        {  
          case PICK_CONTACT_SUBACTIVITY: 
            final Uri uriRet = data.getData(); 
            if(uriRet != null) 
            { 
              try 
              { 
                /* 必须要有android.permission.READ_CONTACTS权限 */ 
                Cursor c = managedQuery(uriRet, null, null, null, null); 
                /*将Cursor移到资料最前端*/
                c.moveToFirst(); 
                /*取得联系人的姓名*/
                String strName =  
                c.getString(c.getColumnIndexOrThrow(People.NAME)); 
                /*取得联系人的电话*/
                String strPhone =  
                c.getString(c.getColumnIndexOrThrow(People.NUMBER)); 
                /*将姓名与电话写入EditText01,EditText02中*/
                mEditText01.setText(strName); 
                mEditText02.setText(strPhone);
              } 
              catch(Exception e) 
              { 
                /*将错误信息在TextView中显示*/
                mTextView01.setText(e.toString()); 
                e.printStackTrace(); 
              } 
            } 
            break; 
        } 
        super.onActivityResult(requestCode, resultCode, data); 
      }

如果只是查询电话簿，需 <uses-permission android:name="android.permission.READ\_CONTACTS"></uses-permission>

如果需要增加修改删除则需 <uses-permission android:name="android.permission.WRITE\_CONTACTS"></uses-permission>