Android 判断app是否安装

我自横刀向天笑，去留肝胆两昆仑。这篇文章主要讲述Android 判断app是否安装相关的知识，希望能为你提供帮助。
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private boolean isAppInstalled(Context context, String uri) { PackageManager pm = context.getPackageManager(); boolean installed = false; try { pm.getPackageInfo(uri, PackageManager.GET_ACTIVITIES); installed = true; } catch (PackageManager.NameNotFoundException e) { installed = false; } return installed; }

public boolean isAppInstalled(Context context, String packageName) { final PackageManager packageManager = context.getPackageManager(); List< PackageInfo> pinfo = packageManager.getInstalledPackages(0); List< String> pName = new ArrayList< String> (); if (pinfo != null) { for (int i = 0; i < pinfo.size(); i++) { String pn = pinfo.get(i).packageName; pName.add(pn); } } return pName.contains(packageName); }

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