有没有一种可靠的方式来启动Android的启动活动？

Question

我已经尝试使用：

<action android:name="android.intent.action.BOOT_COMPLETED" /> 

但是，这是开始启动Android平台上的活动远远不一致的方式。

有什么保证在启动时启动我的应用程序？

Answer 1

您必须申报清单中的权限：

<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" /> 

然后搭上了广播接收器的意图：

在清单：

<receiver 
    android:name="com.mypackagename.MyBroadcastReceiver" 
    android:permission="android.permission.RECEIVE_BOOT_COMPLETED" 
    android:exported="false" > 
    <intent-filter> 
     <action android:name="android.intent.action.BOOT_COMPLETED" /> 
     <category android:name="android.intent.category.DEFAULT" /> 
    </intent-filter> 
</receiver> 

在MyBroadcastReceiver.java：

public class MyBroadcastReceiver extends BroadcastReceiver 
{ 
    @Override 
    public void onReceive(Context context, Intent intent) 
    { 
     Intent i = new Intent(context, YourClass.class); 
     context.startActivity(i); 
    } 
} 

Answer 2

我正在使用Android Studio。

我也在创建一个在Boot Complete上运行的服务，而且我最初还有一大堆不一致和不可靠的结果，我的应用程序（服务）似乎甚至没有尝试启动。

有时它可以很好地工作，然后当我更新项目与其他一些非BroadcastReciever相关的更新，它似乎打破了自动启动。

我发现当我去运行我的应用程序并监视logcat时，发现在某些情况下，Android操作系统广播服务可能需要整整30秒才能更新包更新。

例如，从logcat的......

03-03 17:08:26.757  681-1780/? D/PackageBroadcastService﹕ Received broadcast action=android.intent.action.PACKAGE_REMOVED and uri=com.test.jbyrne.anotherautostart 
#### Note the time stamp between the PACKAGE_REMOVED (above) and PACKAGE_ADDED (below) #### 
03-03 17:08:26.825  681-681/? I/ConfigFetchService﹕ PackageReceiver: Intent { act=android.intent.action.PACKAGE_ADDED dat=package:com.test.jbyrne.anotherautostart flg=0x8000010 cmp=com.google.android.gms/.config.ConfigFetchService$PackageReceiver (has extras) } 
03-03 17:08:26.833  681-681/? I/ConfigFetchService﹕ onStartCommand Intent { act=android.intent.action.PACKAGE_ADDED dat=package:com.test.jbyrne.anotherautostart cmp=com.google.android.gms/.config.ConfigFetchService (has extras) } 
03-03 17:08:26.841  707-707/? D/PackageAddedReceiver﹕ package added com.test.jbyrne.anotherautostart 
03-03 17:08:26.873  681-1816/? D/PackageBroadcastService﹕ Received broadcast action=android.intent.action.PACKAGE_ADDED and uri=com.test.jbyrne.anotherautostart 
03-03 17:08:26.877 1419-1818/? I/UpdateIcingCorporaServi﹕ Updating corpora: APPS=com.test.jbyrne.anotherautostart, CONTACTS=MAYBE 
03-03 17:08:27.005  681-1816/? D/PackageBroadcastService﹕ Received broadcast action=android.intent.action.PACKAGE_REPLACED and uri=com.test.jbyrne.anotherautostart 

然后，我改变了一些不相关的，当我下一次更新数据包...

03-03 17:10:29.866 2454-3515/? D/PackageBroadcastService﹕ Received broadcast action=android.intent.action.PACKAGE_REMOVED and uri=com.test.jbyrne.anotherautostart 
#### This time, it takes over 30 seconds to Update the Broadcast Services!!! #### 
03-03 17:11:00.190 2454-2454/? I/ConfigFetchService﹕ PackageReceiver: Intent { act=android.intent.action.PACKAGE_ADDED dat=package:com.test.jbyrne.anotherautostart flg=0x8000010 cmp=com.google.android.gms/.config.ConfigFetchService$PackageReceiver (has extras) } 
03-03 17:11:00.194 2454-2454/? I/ConfigFetchService﹕ onStartCommand Intent { act=android.intent.action.PACKAGE_ADDED dat=package:com.test.jbyrne.anotherautostart cmp=com.google.android.gms/.config.ConfigFetchService (has extras) } 
03-03 17:11:00.206 2404-2404/? D/PackageAddedReceiver﹕ package added com.test.jbyrne.anotherautostart 
03-03 17:11:00.222 2454-3587/? D/PackageBroadcastService﹕ Received broadcast action=android.intent.action.PACKAGE_ADDED and uri=com.test.jbyrne.anotherautostart 
03-03 17:11:00.246 3168-3589/? I/UpdateIcingCorporaServi﹕ Updating corpora: APPS=com.test.jbyrne.anotherautostart, CONTACTS=MAYBE 
03-03 17:11:00.326 2454-3601/? D/PackageBroadcastService﹕ Received broadcast action=android.intent.action.PACKAGE_REPLACED and uri=com.test.jbyrne.anotherautostart 

我花了很多时间试图找出为什么这是如此不可靠，最终归结为在Android操作系统广播服务更新之前，我很早就重启了我的设备。

尝试等待一分钟，然后重新启动设备以测试更新，以确保更新各种广播服务。或者监控

android.intent.action.PACKAGE_ADDED 

行。

我希望这有助于！

亲切的问候，

约翰