Android 判断手机是否安装某个应用

判断手机是否安装某个应用的方法有很多，但是有的也存在问题，下面写一个项目里常用的，能用的：
/**
* 判断手机是否安装某个应用
* @param context
* @param appPackageName 应用包名
* @return true：安装，false：未安装
*/
public static boolean isApplicationAvilible(Context context, String appPackageName) {
PackageManager packageManager = context.getPackageManager();// 获取packagemanager
List<PackageInfo> pinfo = packageManager.getInstalledPackages(0);// 获取所有已安装程序的包信息
if (pinfo != null) {
for (int i = 0; i < pinfo.size(); i++) {
String pn = pinfo.get(i).packageName;
if (appPackageName.equals(pn)) {
return true;
}
}
}
return false;
}
下面这个方法在使用的时候有些情况下会报错：java.lang.RuntimeException: Package manager has died/**
* 判断手机是否安装某个应用
* @param context
* @param packageName 应用包名
* @return true：安装，false：未安装
* 该方法容易报错：java.lang.RuntimeException: Package manager has died
*/
public static boolean isAppInstallen(Context context ,String packageName){
PackageManager pm = context.getPackageManager();
boolean installed = false;
try {
pm.getPackageInfo(packageName, PackageManager.GET_ACTIVITIES);
installed = true;
} catch (PackageManager.NameNotFoundException e) {
e.printStackTrace();
installed = false;
}
return installed;}