在我的 MainActivity 中,我正在创建接收器并发送广播:
GPSStartedReceiver receiver = new GPSStartedReceiver();
this.registerReceiver(receiver, new IntentFilter("android.location.GPS_ENABLED_CHANGE"));
Intent intent = new Intent();
intent.setAction("com.test.broadcastReceiver.GPSStartedReceiver()");
sendBroadcast(intent);
但是当我启用 GPS 时,广播接收器没有被调用。
以下是清单中接收器的一部分:
<receiver android:name="com.test.broadcastReceiver.GPSStartedReceiver">
<intent-filter>
<action android:name="android.location.GPS_ENABLED_CHANGE" />
</intent-filter>
</receiver>
广播接收器:
public class GPSStartedReceiver extends BroadcastReceiver {
// Start service 5 seconds after GPS is enabled
private static final long WAIT_TIME = 1000 * 5;
// Restart service every 30 seconds
private static final long REPEAT_TIME = 1000 * 30;
@Override
public void onReceive(final Context context, final Intent intent) {
if (intent.getAction().equals("android.location.GPS_ENABLED_CHANGE")) {
final Handler handler = new Handler();
Toast.makeText(context,
context.getResources().getString(R.string.starting_in_5),
Toast.LENGTH_SHORT).show();
handler.postDelayed(new Runnable() {
@Override
public void run() {
AlarmManager service = (AlarmManager) context
.getSystemService(Context.ALARM_SERVICE);
Intent i = new Intent(context, GPSTracker.class);
PendingIntent pending = PendingIntent.getBroadcast(context, 0, i,
PendingIntent.FLAG_CANCEL_CURRENT);
Calendar cal = Calendar.getInstance();
// Start 30 seconds after boot completed
cal.add(Calendar.SECOND, 30);
// Fetch every 30 seconds
service.setInexactRepeating(AlarmManager.RTC_WAKEUP,
cal.getTimeInMillis(), REPEAT_TIME, pending);
}
}, WAIT_TIME);
}
}
}
为什么接收器永远不会被呼叫,即使我启用 GPS ?
答案 0 :(得分:0)
您是否尝试过注册BroadcastReceiver以收听Intent Action PROVIDERS_CHANGED_ACTION
?如果这不起作用,您可以获取locationManager的实例,然后向其注册GpsStatusListener,如下所示mLocationManager.addGpsStatusListener(new android.location.GpsStatus.Listener())
并使用其内部方法。
希望有所帮助
答案 1 :(得分:0)
使用 PROVIDERS_CHANGED_ACTION 在API级别9中添加当配置的位置提供商更改时的广播意图操作。用于isProviderEnabled(String)。如果您正在与LOCATION_MODE API进行交互,请改用MODE_CHANGED_ACTION。
常量值:“android.location.PROVIDERS_CHANGED”
您可以在this SO post
找到解决方案