读取系统已经安装的应用程序_读取已安装应用信息安全高还是低-优快云博客

本文介绍了一种使用Android平台API来获取设备上所有已安装应用程序及其详细信息的方法，包括应用名称、包名和权限等。通过遍历已安装应用列表并利用PackageManager组件，可以实现对每个应用信息的检索。

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<span style="font-family: Arial, Helvetica, sans-serif;">读取系统已经安装的应用程序</span>

<pre name="code" class="java">protected void onCreate(Bundle savedInstanceState) {
	super.onCreate(savedInstanceState);
	setContentView(R.layout.activity_main);
	mTextView = (TextView) findViewById(R.id.textView1);
	PackageManager packageManager = getPackageManager();

	List<PackageInfo> list = packageManager
			.getInstalledPackages(PackageManager.GET_PERMISSIONS);
	StringBuilder stringBuilder = new StringBuilder();
	for (PackageInfo packageInfo : list) {
		stringBuilder.append("包名:" + packageInfo.packageName + "\n");
		ApplicationInfo applicationInfo = packageInfo.applicationInfo;
		stringBuilder.append("应用名称:");
		stringBuilder.append(applicationInfo.loadLabel(packageManager));
		stringBuilder.append("\n");
		if (packageInfo.permissions != null) {
			for (PermissionInfo p : packageInfo.permissions) {
				stringBuilder.append("权限包括:" + p.name + "\n");
			}
		}
		stringBuilder.append("\n");
	}
	mTextView.setText(stringBuilder.toString());
}