在我的应用程序中,在应用程序的每一次启动时,我都想执行一个php脚本并相应地加载应用程序。因此,我创建了一个静态布尔varialble在onStart中打开ASyncTask时出错
boolean firstRun = false;
在我在onStart,我添加格兰下面的代码:
// If images need to be downloaded, call SProgressAsyncTask class
public void onStart() {
super.onStart();
if (firstRun) {
sat = new SProgressAsyncTask(this);
sat.execute("");
firstRun = false;
}
}
索尼的friend'd装置,它完美的作品,即上面的代码只执行一次即应用程序的开始。在我的Sony Xperia P上,每当应用程序进入此主屏幕时,上面的代码都会执行。 当firstRun被设置为false时,为什么上面的代码每次运行都会返回到这个活动。 我试图调试我的设备上,我得到以下错误:
10-22 17:41:49.879: E/WindowManager(30235): Activity org.mumbai77.core.Mumbai77Activity has leaked window [email protected] that was originally added here
10-22 17:41:49.879: E/WindowManager(30235): android.view.WindowLeaked: Activity org.mumbai77.core.Mumbai77Activity has leaked window [email protected] that was originally added here
10-22 17:41:49.879: E/WindowManager(30235): at android.view.ViewRootImpl.<init>(ViewRootImpl.java:344)
10-22 17:41:49.879: E/WindowManager(30235): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:267)
10-22 17:41:49.879: E/WindowManager(30235): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:215)
10-22 17:41:49.879: E/WindowManager(30235): at android.view.WindowManagerImpl$CompatModeWrapper.addView(WindowManagerImpl.java:140)
10-22 17:41:49.879: E/WindowManager(30235): at android.view.Window$LocalWindowManager.addView(Window.java:537)
10-22 17:41:49.879: E/WindowManager(30235): at android.app.Dialog.show(Dialog.java:278)
10-22 17:41:49.879: E/WindowManager(30235): at org.mumbai77.components.ProgressAsyncTask.onPreExecute(ProgressAsyncTask.java:56)
10-22 17:41:49.879: E/WindowManager(30235): at android.os.AsyncTask.executeOnExecutor(AsyncTask.java:561)
10-22 17:41:49.879: E/WindowManager(30235): at android.os.AsyncTask.execute(AsyncTask.java:511)
10-22 17:41:49.879: E/WindowManager(30235): at org.mumbai77.core.Mumbai77Activity.onStart(Mumbai77Activity.java:170)
10-22 17:41:49.879: E/WindowManager(30235): at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1133)
10-22 17:41:49.879: E/WindowManager(30235): at android.app.Activity.performStart(Activity.java:4475)
10-22 17:41:49.879: E/WindowManager(30235): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1940)
10-22 17:41:49.879: E/WindowManager(30235): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1992)
10-22 17:41:49.879: E/WindowManager(30235): at android.app.ActivityThread.access$600(ActivityThread.java:127)
10-22 17:41:49.879: E/WindowManager(30235): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1158)
10-22 17:41:49.879: E/WindowManager(30235): at android.os.Handler.dispatchMessage(Handler.java:99)
10-22 17:41:49.879: E/WindowManager(30235): at android.os.Looper.loop(Looper.java:137)
10-22 17:41:49.879: E/WindowManager(30235): at android.app.ActivityThread.main(ActivityThread.java:4441)
10-22 17:41:49.879: E/WindowManager(30235): at java.lang.reflect.Method.invokeNative(Native Method)
10-22 17:41:49.879: E/WindowManager(30235): at java.lang.reflect.Method.invoke(Method.java:511)
10-22 17:41:49.879: E/WindowManager(30235): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:823)
10-22 17:41:49.879: E/WindowManager(30235): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:590)
10-22 17:41:49.879: E/WindowManager(30235): at dalvik.system.NativeStart.main(Native Method)
我改变了SProgressAsyncTask类和强似活动通过上下文 - getApplicationContext(),而变得更加糟糕。
任何人都可以帮助我知道,为什么onStart if(firstRun)每次都执行而不是只执行一次。
顺便说一句,我的&我的firend的设备都只有ICECREAM Os。
我在这个阶段停留了5-6天,任何帮助都非常感激。请帮我摆脱这个错误。
你为什么用'false'值初始化'firstRun'变量?在这种情况下,AsyncTask永远不会启动。 –
对不起,它被初始化为true。 – Tvd
你确定你的应用程序没有在你的设备上启动之间被杀死吗? (我不知道,也许你有一些任务杀手)。如果没有,请提供一些您的活动生命周期的代码。 –