活动在显示 Toast 后泄漏窗口 [重复]

Posted 2023-02-25

【中文标题】活动在显示 Toast 后泄漏窗口 [重复]

【英文标题】：Activity has leaked window after showing a Toast [duplicate]

【发布时间】：2015-06-24 12:59:24

【问题描述】：

我正在尝试检测用户是否在其设备上激活了 Internet 连接，如果未连接到 Internet，则应该将用户带到“设置”应用以激活 wi-fi/移动数据。

if(!HelperFunctions.hasInternetAccess(this))
        Toast.makeText(this, "You are not connected to the Internet. Please connect to wi-fi or activate your mobile data.", Toast.LENGTH_LONG).show();
        startActivity(new Intent(Settings.ACTION_SETTINGS));
        

但是，我收到了这么多错误：

Activity com.[packageName].scanner.ReadCardActivity has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@42c74c40 that was originally added here
    android.view.WindowLeaked: Activity com.[packageName].scanner.ReadCardActivity has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@42c74c40 that was originally added here
            at android.view.ViewRootImpl.<init>(ViewRootImpl.java:402)
            at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:311)
            at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:224)
            at android.view.WindowManagerImpl$CompatModeWrapper.addView(WindowManagerImpl.java:149)
            at android.view.Window$LocalWindowManager.addView(Window.java:554)
            at android.app.Dialog.show(Dialog.java:277)
            at android.app.AlertDialog$Builder.show(AlertDialog.java:932)
            at com.touchtechpayments.scanner.ReadCardActivity.onCreate(ReadCardActivity.java:83)
            at android.app.Activity.performCreate(Activity.java:5206)
            at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1083)
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2064)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2125)
            at android.app.ActivityThread.access$600(ActivityThread.java:140)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1227)
            at android.os.Handler.dispatchMessage(Handler.java:99)
            at android.os.Looper.loop(Looper.java:137)
            at android.app.ActivityThread.main(ActivityThread.java:4898)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:511)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1006)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:773)
            at dalvik.system.NativeStart.main(Native Method)

当是对话框导致问题时，我已经看到了许多解决方案，但没有特定于 Toasts。如果有帮助，那段代码在 onCreate() 方法中，它应该在 AsyncTask 中还是其他任何东西中？

【问题讨论】：

Toast 没有引起这个异常......

如果您认为它与Dialog 无关，请在ReadCardActivity.java 中发布您的onCreate() 并注明第83 行。

这是第 83 行：alert.show();

【参考方案1】：

如果您在退出 Activity 后尝试显示对话框等，则会出现此错误。

您必须在退出活动之前在您创建的对话框中调用dismiss()。

例如看这段代码

@Override
   public void onClick(View v) 
    switch (v.getId()) 
        case R.id.new_button:
            openMyAlertDialog();
            break; <-- If you forget this the finish() method below 
                       will be called while the dialog is showing!
        case R.id.exit_button:
            finish();
            break;
        
    

发布完整的代码，以便我可以告诉你代码中到底有什么问题

查看这些链接获取帮助

Activity has leaked window that was originally added

android activity has leaked window com.android.internal.policy.impl.phonewindow$decorview Issue

【参考方案2】：

试试这个：

private boolean isNetworkAvailable()

    ConnectivityManager connectivityManager
            = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfo activeNetworkInfo = connectivityManager.getActiveNetworkInfo();
    return activeNetworkInfo != null && activeNetworkInfo.isConnected();


if (!isNetworkAvailable())

        Toast.makeText(this, "You are not connected to the Internet. Please connect to wi-fi or activate your mobile data.", Toast.LENGTH_LONG).show();
    startActivity(new Intent(Settings.ACTION_SETTINGS));Toast.LENGTH_LONG).show();

【讨论】：

但是，如果我的网络数据/wi-fi 连接速度非常慢怎么办？