将已安装的应用程序放入listView [英] get installed applications into a listView

问题描述

如何将所有已安装的应用程序列在listView中. 我尝试了以下代码和其他代码，但效果不佳

How can I get all installed applications listed into a listView. I tried the following code and others but it does not work well

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);  
    final Intent mainIntent = new Intent(Intent.ACTION_MAIN, null);
    mainIntent.addCategory(Intent.CATEGORY_LAUNCHER);
    final List pkgAppsList = context.getPackageManager().queryIntentActivities( mainIntent, 0);
}

而且我仍然不明白为什么要以这种方式使用意图.

and I'm still not understanding why to use intent in this manner.

推荐答案

您可以执行以下操作:

        final PackageManager pm = getPackageManager();
    //get a list of installed apps.
    List<ApplicationInfo> packages = pm.getInstalledApplications(PackageManager.GET_META_DATA);


    for (ApplicationInfo packageInfo : packages) {
        Log.e(TAG, "Installed package :" + packageInfo.packageName);
        Log.e(TAG, "Source dir : " + packageInfo.sourceDir);
        Log.e(TAG, "Launch Activity :" + pm.getLaunchIntentForPackage(packageInfo.packageName)); 
        Log.e(TAG, "");
    }

使用程序包列表文件

我总是使用此代码，希望您喜欢

i always use this code , i hope you enjoy it

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