gistfile1.txt Intent intent = new Intent(); intent.setClassName(MyApp.getAPPContext().getPackageName(), className); ResolveInfo resolveInfo = MyApp.getAPPContext().getPackageManager().resolveActivity(intent, PackageManager.MATCH_DEFAULT_ONL
Intent intent = new Intent(); intent.setClassName(MyApp.getAPPContext().getPackageName(), className); ResolveInfo resolveInfo = MyApp.getAPPContext().getPackageManager().resolveActivity(intent, PackageManager.MATCH_DEFAULT_ONLY); if(ResolveInfo!=null){ //存在 }else{ //不存在 }