判断应用是否安装

* 判断应用是否安装

*

* @param context

* @param packageName

* @return

*/

public static boolean isInstalled(Context context, String packageName) {

boolean hasInstalled = false;

PackageManager pm = context.getPackageManager();

List<PackageInfo> list = pm

.getInstalledPackages(PackageManager.PERMISSION_GRANTED);

for (PackageInfo p : list) {

if (packageName != null && packageName.equals(p.packageName)) {

hasInstalled = true;

break;

}

}

return hasInstalled;

}