解决Content的startActivity方法报错

Android 2.3.3     Eclipse Version: 3.7.0     LogCat

BootBroadcastReceiver继承自android.content.BroadcastReceiver，处理广播事件，部分代码如下：

public void onReceive(Context context, Intent intent) {……Intent startIPhone = new Intent(context, Iphone.class);context.startActivity(startIPhone);……}

LogCat 报错信息：

02-10 13:26:11.017: DEBUG/AndroidRuntime(17173): Shutting down VM02-10 13:26:11.017: WARN/dalvikvm(17173): threadid=1: thread exiting with uncaught exception (group=0x40015560)02-10 13:26:11.048: ERROR/AndroidRuntime(17173): FATAL EXCEPTION: main02-10 13:26:11.048: ERROR/AndroidRuntime(17173): java.lang.RuntimeException: Unable to start receiver com.tmall.htc.BootBroadcastReceiver: android.util.AndroidRuntimeException: Calling startActivity() from outside of an Activity context requires the FLAG_ACTIVITY_NEW_TASK flag. Is this really what you want?02-10 13:26:11.048: ERROR/AndroidRuntime(17173): at android.app.ActivityThread.handleReceiver(ActivityThread.java:1805)02-10 13:26:11.048: ERROR/AndroidRuntime(17173): at android.app.ActivityThread.access$2400(ActivityThread.java:117)02-10 13:26:11.048: ERROR/AndroidRuntime(17173): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:981)02-10 13:26:11.048: ERROR/AndroidRuntime(17173): at android.os.Handler.dispatchMessage(Handler.java:99)02-10 13:26:11.048: ERROR/AndroidRuntime(17173): at android.os.Looper.loop(Looper.java:123)02-10 13:26:11.048: ERROR/AndroidRuntime(17173): at android.app.ActivityThread.main(ActivityThread.java:3683)02-10 13:26:11.048: ERROR/AndroidRuntime(17173): at java.lang.reflect.Method.invokeNative(Native Method)02-10 13:26:11.048: ERROR/AndroidRuntime(17173): at java.lang.reflect.Method.invoke(Method.java:507)02-10 13:26:11.048: ERROR/AndroidRuntime(17173): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)02-10 13:26:11.048: ERROR/AndroidRuntime(17173): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)02-10 13:26:11.048: ERROR/AndroidRuntime(17173): at dalvik.system.NativeStart.main(Native Method)02-10 13:26:11.048: ERROR/AndroidRuntime(17173): 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?02-10 13:26:11.048: ERROR/AndroidRuntime(17173): at android.app.ContextImpl.startActivity(ContextImpl.java:621)02-10 13:26:11.048: ERROR/AndroidRuntime(17173): at android.content.ContextWrapper.startActivity(ContextWrapper.java:258)02-10 13:26:11.048: ERROR/AndroidRuntime(17173): at android.content.ContextWrapper.startActivity(ContextWrapper.java:258)02-10 13:26:11.048: ERROR/AndroidRuntime(17173): at com.tmall.htc.BootBroadcastReceiver.onReceive(BootBroadcastReceiver.java:64)02-10 13:26:11.048: ERROR/AndroidRuntime(17173): at android.app.ActivityThread.handleReceiver(ActivityThread.java:1794)02-10 13:26:11.048: ERROR/AndroidRuntime(17173): ... 10 more02-10 13:26:11.078: WARN/ActivityManager(68): Force finishing activity com.tmall.htc/.Iphone

发生错误原因分析：

主要原因是

02-10 13:26:11.048: ERROR/AndroidRuntime(17173): 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?

Content的startActivity方法，需要开启一个新的task。

如果使用 Activity的startActivity方法，不会有任何限制，因为Activity继承自Context，已重载了startActivity方法。

解决办法：

按照错误提示，添加一个FLAG_ACTIVITY_NEW_TASK flag

public void onReceive(Context context, Intent intent) {……Intent startiPhone = new Intent(context, Iphone.class);startiPhone.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);context.startActivity(startiPhone);……}

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