Android读取第三方应用列表并卸载

/**
* 安装一个apk文件
*/
public static void install(Context context, File uriFile) {
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(Uri.fromFile(uriFile), "application/vnd.android.package-archive");
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(intent);
}
/**
* 卸载一个app
*/
public static void uninstall(Context context, String packageName) {
//通过程序的包名创建URI
Uri packageURI = Uri.parse("package:" + packageName);
//创建Intent意图
Intent intent = new Intent(Intent.ACTION_DELETE, packageURI);
//执行卸载程序
context.startActivity(intent);
}

/**
* 获取已安装非系统应用
*
* @return
*/
public static List<AppInfo> scanInstallApp(Context mContext) {
List<AppInfo> appInfos = new ArrayList<>();
PackageManager pm = mContext.getPackageManager(); // 获得PackageManager对象
List<ApplicationInfo> listAppcations = pm
.getInstalledApplications(PackageManager.GET_UNINSTALLED_PACKAGES);
Collections.sort(listAppcations,
new ApplicationInfo.DisplayNameComparator(pm));// 字典排序
for (ApplicationInfo app : listAppcations) {
if ((app.flags & ApplicationInfo.FLAG_SYSTEM) <= 0) {//非系统程序
appInfos.add(getAppInfo(app, pm));
}//本来是系统程序，被用户手动更新后，该系统程序也成为第三方应用程序了
else if ((app.flags & ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) != 0) {
appInfos.add(getAppInfo(app, pm));
}
}
return appInfos;
}

/**
*  构造一个AppInfo对象 ，并赋值
*/
private static AppInfo getAppInfo(ApplicationInfo app, PackageManager pm) {
AppInfo appInfo = new AppInfo();
appInfo.setAppName(pm.getApplicationLabel(app).toString());//应用名称
appInfo.setAppIcon(app.loadIcon(pm));//应用icon
appInfo.setPkgName(app.packageName);//应用包名，用来卸载
File file = new File(app.sourceDir);
float size = file.length();
DecimalFormat df = new DecimalFormat("#.00");
appInfo.setAppSize(df.format(size / (1024 * 1024)) + "M");//应用大小，M单位，保留两位小数
PackageInfo packageInfo = null;
try {
packageInfo = pm.getPackageInfo(app.packageName, 0);
long lastUpdateTime = packageInfo.lastUpdateTime;//应用最近一次更新时间
appInfo.setUpdateDate(TimeUtil.time2Ago(lastUpdateTime));//将毫秒时间对比当前时间转换为多久以前
} catch (PackageManager.NameNotFoundException e) {
e.printStackTrace();
}
return appInfo;
}