public class MainActivity extends AppCompatActivity {
private static final String TAG = "MainActivity";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Log.e(TAG, "onCreate: 111");
Uri uri = Uri.parse("content://ngyb.ltz/insert");
Log.e(TAG, "onCreate: 222");
getContentResolver().registerContentObserver(uri, true, new ContentObserver(new Handler()) {
@Override
public void onChange(boolean selfChange) {
//System.out.println("哈哈哈,我执行了");
Log.e(TAG, "onChange:哈哈哈,我执行了 ");
super.onChange(selfChange);
}
});
}
}