相关疑难解决方法(0)

所以我在这里遵循这个教程,将我的短信设置为默认,但由于某种原因,我的代码无效.我试图尽可能多地查看,但所有内容都指向同一个教程或已经过时.我也需要接收器吗？谁能解释我做错了什么？

代码:

@Override
protected void onResume()
{
    super.onResume();
    Log.i("MainAcitvity", "On Resume Called");
    // Only do these checks/changes on KitKat+, the "mSetDefaultSmsLayout" has its visibility
    // set to "gone" in the xml layout so it won't show at all on earlier Android versions.
    final String myPackageName = getPackageName();

    if (Utility.hasKitKat())
    {
        if (Utility.isDefaultSmsApp(this))
        {
            // This app is the default, remove the "make this app the default" layout and
            // enable message sending components.
            mSetDefaultSmsLayout.setVisibility(View.GONE);
        }
        else
        {
            Log.i("MainActivity", …