java - 从 onOptionsItemSelected 显示对话框

Question

我试图从菜单工具栏显示我的 AlertDialog，但此代码出现此异常:

case R.id.about: {
    final AlertDialog.Builder aboutDialog = new AlertDialog.Builder(SplashActivity.this);
    aboutDialog.setTitle(mCtx.getResources()
        .getString(R.string.about_tests))
        .setCancelable(true)                           
        .setMessage(mCtx.getResources().getString(R.string.description_tests))                        
        .setPositiveButton(mCtx.getResources().getString(R.string.ok), new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog, int arg1) {
                googleRateClick();
            }
        })
        .setNegativeButton(mCtx.getResources().getString(R.string.not_now), new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog, int arg1) {
                dialog.dismiss();
            }
        });

    aboutDialog.show();
}

1433-1433/MYPACKAGE E/WindowManager﹕ android.view.WindowLeaked: Activity MYPACKAGE.activity.SplashActivity has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView{d3dca6c V.E..... R......D 0,0-729,665} that was originally added here
                at android.view.ViewRootImpl.<init>(ViewRootImpl.java:363)
                at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:261)
                at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:69)
                at android.app.Dialog.show(Dialog.java:298)
                at android.app.AlertDialog$Builder.show(AlertDialog.java:987)
                at MYPACKAGE.SplashActivity.onOptionsItemSelected(SplashActivity.java:90)

Answer 1

您忘记了 case 语句中的 break; 指令。我认为这是你的问题。您不妨检查是否调用 finish(); 方法，因为此错误通常告诉您对话框是从关闭的 Activity 中显示的