Android - 无法启用BroadcastReceiver
升级到最新的 SDK 后，我回到小部件开发，突然我的小部件在启动时失败并显示以下消息：
ERROR/AndroidRuntime(5296): java.lang.RuntimeException:
Unable to start receiver topjob.widget.SearchWidget:
java.lang.SecurityException: Permission Denial:
attempt to change component state from pid=5296, uid=10057, package uid=10048
这是发生异常的两行代码：
@Override
public void onEnabled(Context context) {
PackageManager pm = context.getPackageManager();
pm.setComponentEnabledSetting(new ComponentName("topjob",
".widget.SearchWidgetBroadcastReceiver"),
PackageManager.COMPONENT_ENABLED_STATE_ENABLED,
PackageManager.DONT_KILL_APP);
startAlarm(context, UPDATE_RATE_SEC);
}
所以在上面的代码中 startAlarm() 从未执行，因为 pm.setComponentEnabledSetting() 抛出 SecurityException
我是否在清单中缺少任何安全设置？目前我有：
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
我正在开发 SDK v. 1.5 并且它曾经工作得
很好它发生在手机和模拟器上
I got back to the widget development after upgrading to the latest SDK and all of the sudden my widget is failing on startup with this message:
ERROR/AndroidRuntime(5296): java.lang.RuntimeException:
Unable to start receiver topjob.widget.SearchWidget:
java.lang.SecurityException: Permission Denial:
attempt to change component state from pid=5296, uid=10057, package uid=10048
Here's two lines of code where exception occurs:
@Override
public void onEnabled(Context context) {
PackageManager pm = context.getPackageManager();
pm.setComponentEnabledSetting(new ComponentName("topjob",
".widget.SearchWidgetBroadcastReceiver"),
PackageManager.COMPONENT_ENABLED_STATE_ENABLED,
PackageManager.DONT_KILL_APP);
startAlarm(context, UPDATE_RATE_SEC);
}
so in the code above startAlarm() is never executed since pm.setComponentEnabledSetting() throws the SecurityException
Am I missing any security settings in my manifest? Currently I have:
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
I'm developing for SDK v. 1.5 and it used to work fine
P.S. It happens on the phone and the emulator
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评论（4）
在manifest.xml中您将添加
在Android.mk中将添加
这就是全部。
At the manifest.xml you will add
At the Android.mk will add
this is all.
您可以尝试在清单中添加此权限吗？
Can you try adding this permission in your manifest?
好的 - 这不是真正的答案，而是一种解决方法。如果有人想介入并提供关于如何完成此操作的答案或解释，我会很乐意接受。
无论如何 - 我通过将
newState标志从COMPONENT_ENABLED_STATE_ENABLED更改为PackageManager.COMPONENT_ENABLED_STATE_DEFAULT来使其工作。由于我的广播接收器已在清单中启用状态，因此它工作得很好OK - this is not really answer but rather a workaround. If someone wants to step in and provide answer or explanations on how this should be done I would gladly accept that.
Anyway - I got it working by changing
newStateflag fromCOMPONENT_ENABLED_STATE_ENABLEDtoPackageManager.COMPONENT_ENABLED_STATE_DEFAULT. Since my broadcast receiver has enabled state in the manifest it works just fine当我尝试禁用正在运行的包中的某些组件时，我只收到此错误“java.lang.SecurityException：权限拒绝：”。否则，我会成功。
I only got this error "java.lang.SecurityException: Permission Denial: " when I try to disable some component out of the package it is running in.Otherwise, I got success.