Question

我正在处理的应用程序存在一个非常奇怪的问题。启动应用后，它会调用Activity A，然后调用Activity B。在Activity B中，我重写了调用函数的onKeyDown方法，如下所示：

@Override
    public boolean onKeyDown(int keyCode, KeyEvent event)
    {
        if (keyCode == KeyEvent.KEYCODE_BACK)
        {
            disconnectDatabase();
        }
        else if (keyCode == KeyEvent.KEYCODE_DEL)
        {
            QueryEditor queryEditor = (QueryEditor) getSupportFragmentManager().findFragmentById(R.id.fragment_queryEditor);
            queryEditor.formatQueryText();
        }

        return super.onKeyDown(keyCode, event);
    }

disconnectDatabase功能如下：

private void disconnectDatabase()
{
    UserInterfaceManager uiManager = new UserInterfaceManager(ConnectedDBManagerHost.this);
    if (uiManager.showYesNoDialog(getString(R.string.are_you_sure_you_want_to_disconnect_the_current_database), getString(R.string.are_you_sure), false))
    {
        ConnectionsManager.connectedDatabase = null;
        Intent intent = new Intent(this, MainActivity.class);
        intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_CLEAR_TOP);
        finish();
        startActivity(intent);
    }
}

showYesNoDialog方法构建一个AlertDialog并返回用户按下的结果。这正确加载，我按下是然后它崩溃，但崩溃不是来自我的应用程序，而是似乎来自平板电脑的硬件，通过它的图形驱动程序的外观。

logcat中显示的错误如下：

8-06 22:41:47.122 28777-28777/com.BoardiesITSolutions.MysqlManager E/tegra_memtrack_hal: Error: Could not find any nvmap heaps.
08-06 22:41:47.123 28777-28777/com.BoardiesITSolutions.MysqlManager E/tegra_memtrack_hal: Error: Could not find any nvmap heaps.
08-06 22:41:47.123 28777-28777/com.BoardiesITSolutions.MysqlManager E/tegra_memtrack_hal: Error: Could not find any nvmap heaps.
08-06 22:41:48.582 28777-28777/com.BoardiesITSolutions.MysqlManager E/Ads: JS: Uncaught ReferenceError: AFMA_ReceiveMessage is not defined (:1)
08-06 22:41:53.891 29187-28777/? A/google-breakpad: -----BEGIN BREAKPAD MICRODUMP-----
08-06 22:41:53.891 29187-28777/? A/google-breakpad: V WebView:51.0.2704.81
08-06 22:41:53.893 29187-28777/? A/google-breakpad: O A arm64 02 aarch64 google/volantis/flounder:6.0.1/MOB30P/2960889:user/release-keys
08-06 22:41:53.893 29187-28777/? A/google-breakpad: G OpenGL ES 3.1 NVIDIA 343.00|NVIDIA Corporation|NVIDIA Tegra
08-06 22:41:53.893 29187-28777/? A/google-breakpad: S 0 0000007FC76151A0 0000007FC7615000 0000000000002000
08-06 22:41:53.896 29187-28777/? A/google-breakpad: S 0000007FC7615000 101ABAC7550000004B5161C77F0000004C5161C77F0000000000430001000000008911C755000000B668

仅供参考我没有包含整个logcat，它看起来主要只是一个内存转储。

由于这次崩溃不是来自我的应用程序，我完全不知道在哪里寻找或导致这种情况。我没有打电话给新的活动，而是尝试过调用完，但没有任何区别。它也不会一直这样做，它确实在大多数时间都这样做，但偶尔它会完美地工作。

在onKeyDown中调用方法时，BEGIN BREAKPAD MICRODUMP崩溃

0 个答案: