android 卸载应用、打开应用、获得系统中已安装应用列表

首先：

1 、获得所有已经安装的应用的列表：List<ApplicationInfo> mApp = getPackageManager().getInstalledApplications(0)

2、删除指定的应用

Intent intent = new Intent(Intent.ACTION_DELETE);

intent.setData(Uri.fromParts("package",mApp.get(i),null);

startActivity(intent);

3、打开指定应用

Intent reIntent = new Intent(Intent.ACTION_MAIN,null);

reIntent.addCategory(Intent.CATEGORY_LAUNCHER);

reIntent.setPackage(mApp.get(i).packageName);

List<ResolveInfo> resolve = getPackageManager().queryIntentActivities(reIntent,0);

if(resolve!=null && resolve.size()>0){

ResolveInfo res = resolve.get(0);

String apName = res.activityInfo.packageName;

String className = res.activityInfo.name;

Intent intent = new Intent(Intent.ACTION_MAIN);

intent.addCategory(Intent.CATEGORY_LAUNCHER);

ComponentName cptName = new ComponentName(apName,className);

intent.setComponent(cptName);

startActivity(intent);

}