我想在我的
Android应用中使用
sendOrderedBroadcast.
我希望能够将Intent从我的一个应用程序发送到另一个应用程序,然后我想从收到Intent的应用程序中获取数据,在这种情况下为布尔值true或false.
这是当前的代码：
Intent i = new Intent();
i.setAction(GlobalData.PROPOSE_IN_DOMAIN_ROAM_INTENT);
i.putExtra("com.testnetworks.QCLEVEL",aProposedTheoreticalQoSLevel);
sendOrderedBroadcast(i,null,Activity.RESULT_OK,null);
这是实现我想要的正确方法吗？
如果是这样,我将什么用作resultReceiver *参数？ (第3个参数)
然后我如何从广播中收回数据？
我做了一个快速的谷歌,没有提出任何例子,任何帮助或例子非常感谢.
更新的代码：
sendOrderedBroadcast(i,domainBroadcast,null);
class DomainBroadcast extends BroadcastReceiver{
@Override
public void onReceive(Context arg0,Intent intent) {
String action = intent.getAction();
if(GlobalData.PROPOSE_IN_DOMAIN_ROAM_INTENT.equals(action)){
Log.d("BROADCAST","Returning broadcast");
Bundle b = intent.getExtras();
Log.d("BROADCAST","Returning broadcast " +
b.getInt("com.testnetworks.INT_TEST"));
}
}
@Override
public void onReceive(Context context,Intent intent) {
String action = intent.getAction();
if(GlobalData.PROPOSE_IN_DOMAIN_ROAM_INTENT.equals(action)){
Bundle b = intent.getExtras();
int testQCLevel = b.getInt("com.testnetworks.QCLEVEL");
switch(testQCLevel){
case 1:
Log.d("QCLevel ","QCLevel = UNAVAILABLE");
break;
case 2:
Log.d("QCLevel ","QCLevel = BELOWUSABILITY");
break;
case 3:
Log.d("QCLevel ","QCLevel = VOICE");
break;
}
intent.putExtra("com.testnetworks.INT_TEST",100);
}
所以根据Doc的说法,我应该在我的DomainBroadcast接收器中收到100,但它总是回到0.
谁能明白为什么？
** resultReceiver – 您自己的BroadcastReceiver将其视为广播的最终接收者.*
解决方法
您需要
get the extra data results Bundle并将数据添加到其中.
尝试这样的事情：
public class DemoOrderedBroadcast extends Activity {
private static String SOMETHING_HAPPENED = "com.example.somethinghappened";
private static String EXTRA_INTEGER = "extra integer";
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
IntentFilter filter = new IntentFilter(SOMETHING_HAPPENED);
registerReceiver(new BroadcastReceiver() {
@Override
public void onReceive(Context context,Intent intent) {
Bundle results = getResultExtras(true);
results.putInt(EXTRA_INTEGER,100);
Log.d("DemoOrderedBroadcast","In Initial Receiver: Put 'extra integer' = 100");
}
},filter);
Intent intent = new Intent(SOMETHING_HAPPENED);
sendOrderedBroadcast(intent,new BroadcastReceiver() {
@Override
public void onReceive(Context context,Intent intent) {
Bundle results = getResultExtras(true);
Log.d("DemoOrderedBroadcast","In Result Receiver: Got 'extra integer' = "
+ results.getInt(EXTRA_INTEGER,-1));
}
},null);
}
}
这产生了所需的输出：
$adb -e shell am start -n com.example.DemoOrderedBroadcast/.DemoOrderedBroadcast
Starting: Intent { cmp=com.example.DemoOrderedBroadcast/.DemoOrderedBroadcast }
$adb -e shell logcat | grep D/DemoOrderedBroadcast
D/DemoOrderedBroadcast( 1343): In Initial Receiver: Put 'extra integer' = 100
D/DemoOrderedBroadcast( 1343): In Result Receiver: Got 'extra integer' = 100
