Android 在我用BroadcastReceiver安装了.apk文件后,BroadcastReceiver会继续运行吗?
我认为即使我退出应用程序,Android 在我用BroadcastReceiver安装了.apk文件后,BroadcastReceiver会继续运行吗?,android,android-broadcast,Android,Android Broadcast,我认为即使我退出应用程序,BroadcastReceiver AlarmManagerBroadcastReceiver仍将继续运行。我想当我重新启动系统时,BroadcastReceiver将自动恢复并保持运行。为了停止广播接收器,我必须卸载应用程序,对吗 布局 <LinearLayout xmlns:android='http://schemas.android.com/apk/res/android' xmlns:tools='http://schemas.android.c
BroadcastReceiver AlarmManagerBroadcastReceiver
仍将继续运行。我想当我重新启动系统时,BroadcastReceiver
将自动恢复并保持运行。为了停止广播接收器,我必须卸载应用程序,对吗
布局
<LinearLayout xmlns:android='http://schemas.android.com/apk/res/android'
xmlns:tools='http://schemas.android.com/tools'
android:layout_width='match_parent'
android:layout_height='match_parent'
android:orientation='vertical'>
<Button
android:layout_width='fill_parent'
android:layout_height='wrap_content'
android:padding='@dimen/padding_medium'
android:text='@string/start_repeating_alarm'
android:onClick='startRepeatingAlarm'
tools:context='.EnableDisableBroadcastReceiver' />
<Button
android:layout_width='fill_parent'
android:layout_height='wrap_content'
android:padding='@dimen/padding_medium'
android:text='@string/cancel_alarm'
android:onClick='cancelAlarm'
tools:context='.EnableDisableBroadcastReceiver' />
<Button
android:layout_width='fill_parent'
android:layout_height='wrap_content'
android:padding='@dimen/padding_medium'
android:text='@string/enable_broadcast_receiver'
android:onClick='enableBroadcastReceiver'
tools:context='.EnableDisableBroadcastReceiver' />
<Button
android:layout_width='fill_parent'
android:layout_height='wrap_content'
android:padding='@dimen/padding_medium'
android:text='@string/disable_broadcast_receiver'
android:onClick='disableBroadcastReceiver'
tools:context='.EnableDisableBroadcastReceiver' />
</LinearLayout>
活动
public class EnableDisableBroadcastReceiver extends Activity {
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public void startRepeatingAlarm(View view)
{
AlarmManager am=(AlarmManager)this.getSystemService(Context.ALARM_SERVICE);
Intent intent = new Intent(this, AlarmManagerBroadcastReceiver.class);
PendingIntent pi = PendingIntent.getBroadcast(this, 0, intent, 0);
//After after 2 seconds
am.setRepeating(AlarmManager.RTC_WAKEUP, System.currentTimeMillis(), 1000 * 4 , pi);
Toast.makeText(this, 'Started Repeating Alarm', Toast.LENGTH_SHORT).show();
}
public void cancelAlarm(View view)
{
Intent intent = new Intent(this, AlarmManagerBroadcastReceiver.class);
PendingIntent sender = PendingIntent.getBroadcast(this, 0, intent, 0);
AlarmManager alarmManager = (AlarmManager) this.getSystemService(Context.ALARM_SERVICE);
alarmManager.cancel(sender);
Toast.makeText(this, 'Cancelled alarm', Toast.LENGTH_SHORT).show();
}
public void enableBroadcastReceiver(View view){
ComponentName receiver = new ComponentName(this, AlarmManagerBroadcastReceiver.class);
PackageManager pm = this.getPackageManager();
pm.setComponentEnabledSetting(receiver,
PackageManager.COMPONENT_ENABLED_STATE_ENABLED,
PackageManager.DONT_KILL_APP);
Toast.makeText(this, 'Enabled broadcast receiver', Toast.LENGTH_SHORT).show();
}
public void disableBroadcastReceiver(View view){
ComponentName receiver = new ComponentName(this, AlarmManagerBroadcastReceiver.class);
PackageManager pm = this.getPackageManager();
pm.setComponentEnabledSetting(receiver,
PackageManager.COMPONENT_ENABLED_STATE_DISABLED,
PackageManager.DONT_KILL_APP);
Toast.makeText(this, 'Disabled broadcst receiver', Toast.LENGTH_SHORT).show();
}
}
阅读。它提到,当您在活动中以编程方式注册广播接收器时,当活动暂停时,它将不会获得广播
如果您想在后台运行它,可能需要使用
服务是一种应用程序组件,它可以在后台执行长时间运行的操作,并且不提供用户界面
让服务运行并在那里注册BroadcastReceiver。您可以在清单中注册它。如果您还想在重新启动时运行它,则在中,您需要使用:
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
如果可能,您可以在清单中注册广播接收器,并在那里处理它。接收器在主线程上运行,因此理想情况下,您可以向正在运行的服务发送信号或在那里启动服务。你可能想读书
希望能有帮助 阅读。它提到,当您在活动中以编程方式注册广播接收器时,当活动暂停时,它将不会获得广播
如果您想在后台运行它,可能需要使用
服务是一种应用程序组件,它可以在后台执行长时间运行的操作,并且不提供用户界面
让服务运行并在那里注册BroadcastReceiver。您可以在清单中注册它。如果您还想在重新启动时运行它,则在中,您需要使用:
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
如果可能,您可以在清单中注册广播接收器,并在那里处理它。接收器在主线程上运行,因此理想情况下,您可以向正在运行的服务发送信号或在那里启动服务。你可能想读书
希望能有帮助 谢谢!但在文档中,我被告知在我安装应用程序或重新启动手机后,该应用程序将继续运行。哪一个是正确的。这取决于您为
BroadcasrReceiver
指定的操作。你能把你的舱单包括在内吗?谢谢!如果我在清单中包含BroadcasrReceiver,即使我重新启动手机,广播接收器在我安装.apk文件后是否仍会保持运行?是的,它应该可以,并且为了使其在重新启动后工作,请包含android.intent.action.BOOT\u“
行动。谢谢!但在文档中,我被告知在我安装应用程序或重新启动手机后,该应用程序将继续运行。哪一个是正确的。这取决于您为BroadcasrReceiver
指定的操作。你能把你的舱单包括在内吗?谢谢!如果我在清单中包含BroadcasrReceiver,即使我重新启动移动设备,广播接收器在我安装.apk文件后是否仍将保持运行?是的,它应该可以,并且为了使其在重新启动后工作,请包含android.intent.action.BOOT\u COMPLETED”
action。
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<receiver android:enabled="true"
android:permission="android.permission.RECEIVE_BOOT_COMPLETED" android:name=".MyReceiver">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED"/>
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</receiver>