我不明白为什么不调用onreceive方法。我在网上跟踪了所有的例子,并且在这个网站上浏览了很多类似的问题。有什么想法吗?我错过什么了吗?
public class MainActivity extends Activity {
public BroadcastReceiver myReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
Log.d("Receiver", "Receiving message");
String action = intent.getAction();
String message;
if (action.equals(BUTTON_ACTION)) {
message = intent.getStringExtra("BUTTON");
Log.d("R", message);
}
}
};
String BUTTON_ACTION = "button";
@Override
protected void onResume() {
super.onResume();
LocalBroadcastManager.getInstance(this).registerReceiver(myReceiver,
new IntentFilter(BUTTON_ACTION));
}
@Override
protected void onPause() {
super.onPause();
LocalBroadcastManager.getInstance(this).unregisterReceiver(myReceiver);
}
在这一点上,我得到日志时,按钮被按下。但在我的接收器中从未达到onreceive方法。
public void button1(View view) {
Log.d("sender", "Broadcasting message");
Intent broadcastIntent = new Intent();
broadcastIntent.setAction(BUTTON_ACTION).addCategory("Button Press")
.putExtra("BUTTON", "Button 1 has been pressed.").addFlags(Intent.));
LocalBroadcastManager.getInstance(this).sendBroadcast(broadcastIntent);
}
}
最佳答案
看起来您正在使用类别集发送广播意图,但您的BroadcastReceiver
未设置为处理类别。如果从广播意图中删除类别(或将其添加到IntentFilter
),则可能会为您修复该类别。
从文档中:
请注意,与操作不同,没有类别的intentfilter将只与没有任何类别的intent匹配。
(http://developer.android.com/reference/android/content/IntentFilter.html)
关于android - BroadcastReceiver onReceive()无法正常工作,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/17682990/