java - 在 AutoCompleteTextView 中单击应用程序名称时显示包名称

Question

我创建了一个 AutoCompleteTextView，显示所有已安装的应用程序。

我还创建了一个Toast (并将其实现为 onItemClickListener )，这将显示所选应用程序的 PackageName 。

如何从包管理器中检索包名称？请帮忙

        final AutoCompleteTextView lView;
        final ArrayList results;
        List<ResolveInfo> list;
        final String pname = "";


        results = new ArrayList();
    lView = (AutoCompleteTextView)this.findViewById(R.id.languages);
    PackageManager pm = this.getPackageManager();




    Intent intent = new Intent(Intent.ACTION_MAIN, null);
    intent.addCategory(Intent.CATEGORY_LAUNCHER);

    list = pm.queryIntentActivities(intent,
        PackageManager.PERMISSION_GRANTED);
    for (ResolveInfo rInfo : list) {
        results.add(rInfo.activityInfo.applicationInfo.loadLabel(pm)
                .toString());
        Log.w("Installed Applications", rInfo.activityInfo.applicationInfo
                .loadLabel(pm).toString());
    }
    lView.setAdapter(new ArrayAdapter(this,
            android.R.layout.simple_list_item_1, results));



    lView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                Toast.makeText(getApplicationContext(), "PACKAGENAME", Toast.LENGTH_SHORT).show();
        }
  });

Answer 1

您将从 ResolveInfo 获取包裹信息.

您有列表列表； 因此，将您的 ItemClickListener 实现更改为此

lView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
    @Override
    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
            String packageName = list.get(position).activityInfo.applicationInfo.packageName;
            Toast.makeText(getApplicationContext(), packageName, Toast.LENGTH_SHORT).show();
    }
});