Unable to start receiver com.demo.floatwindowdemo.OpenActivityBroadCast: android.util.AndroidRuntime

广播启动不起来：

Unable to start receiver com.demo.floatwindowdemo.OpenActivityBroadCast: android.util.AndroidRuntimeException: Calling startActivity() from outside of an Activity  context requires the FLAG_ACTIVITY_NEW_TASK flag. Is this really what you want?

解决办法：

mIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

报错日志：

03-18 10:47:42.585: E/AndroidRuntime(16775): FATAL EXCEPTION: main
03-18 10:47:42.585: E/AndroidRuntime(16775): java.lang.RuntimeException: Unable to start receiver com.demo.floatwindowdemo.OpenActivityBroadCast: android.util.AndroidRuntimeException: Calling startActivity() from outside of an Activity  context requires the FLAG_ACTIVITY_NEW_TASK flag. Is this really what you want?
03-18 10:47:42.585: E/AndroidRuntime(16775): at android.app.ActivityThread.handleReceiver(ActivityThread.java:2452)
03-18 10:47:42.585: E/AndroidRuntime(16775): at android.app.ActivityThread.access$1600(ActivityThread.java:154)
03-18 10:47:42.585: E/AndroidRuntime(16775): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1360)
03-18 10:47:42.585: E/AndroidRuntime(16775): at android.os.Handler.dispatchMessage(Handler.java:99)
03-18 10:47:42.585: E/AndroidRuntime(16775): at android.os.Looper.loop(Looper.java:137)
03-18 10:47:42.585: E/AndroidRuntime(16775): at android.app.ActivityThread.main(ActivityThread.java:5306)
03-18 10:47:42.585: E/AndroidRuntime(16775): at java.lang.reflect.Method.invokeNative(Native Method)
03-18 10:47:42.585: E/AndroidRuntime(16775): at java.lang.reflect.Method.invoke(Method.java:511)
03-18 10:47:42.585: E/AndroidRuntime(16775): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1102)
03-18 10:47:42.585: E/AndroidRuntime(16775): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:869)
03-18 10:47:42.585: E/AndroidRuntime(16775): at dalvik.system.NativeStart.main(Native Method)
03-18 10:47:42.585: E/AndroidRuntime(16775): Caused by: android.util.AndroidRuntimeException: Calling startActivity() from outside of an Activity  context requires the FLAG_ACTIVITY_NEW_TASK flag. Is this really what you want?
03-18 10:47:42.585: E/AndroidRuntime(16775): at android.app.ContextImpl.startActivity(ContextImpl.java:1244)
03-18 10:47:42.585: E/AndroidRuntime(16775): at android.app.ContextImpl.startActivity(ContextImpl.java:1231)
03-18 10:47:42.585: E/AndroidRuntime(16775): at android.content.ContextWrapper.startActivity(ContextWrapper.java:291)
03-18 10:47:42.585: E/AndroidRuntime(16775): at android.content.ContextWrapper.startActivity(ContextWrapper.java:291)
03-18 10:47:42.585: E/AndroidRuntime(16775): at com.demo.floatwindowdemo.OpenActivityBroadCast.onReceive(OpenActivityBroadCast.java:30)
03-18 10:47:42.585: E/AndroidRuntime(16775): at android.app.ActivityThread.handleReceiver(ActivityThread.java:2445)
03-18 10:47:42.585: E/AndroidRuntime(16775): ... 10 more