How to simply determine whether an APK has been installed on Android

This article describes how Android simply determines whether an APK has been installed. Share it for your reference, as follows:

privateboolean isAppInstalled(String uri){
PackageManager pm = getPackageManager();
boolean installed =false;
try{
(uri,PackageManager.GET_ACTIVITIES);
installed =true;
}catch( e){
installed =false;
}
return installed;
}

Just use this method to check the application package name you need to judge:

if(isAppInstalled("")){
//app installed
}
else{
//app not installed
}

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I hope this article will be helpful to everyone's Android programming design.