android - 尝试查询ContactList

根据我得到的较早答案，我在BroadcastReceiver中包含以下代码：

Uri lookupUri = Uri.withAppendedPath(PhoneLookup.CONTENT_FILTER_URI, Uri.encode(ASenderTel));
// Also tried;
//ContentResolver cr = getContentResolver();
//Context c = this;
Cursor c = getContentResolver().query(lookupUri, new String[] { PhoneLookup._ID }, null, null, null);
return (c.getCount() > 0);

...但是得到了错误信息，“对于类型KITSMSReceiver，未定义方法getContentResolver（）”

最佳答案

getContentResolver（）是android.content.Context类的方法。例如，您可以从活动中访问它。为了达到目的，将广播接收器放入活动类中：

快速草稿：

public class MyActivity extends Activity {

  // ...

  private BroadcastReceiver myReceiver = new BroadcastReceiver() {
    public void onReceive(Context c, Intent i) {
      MyActivity.this.recvBroadcast(i); // forward to your activity
      MyActivity.this.getContentResolver();  // <-----
    }
  }};

  // ...

}