我可以同时使用 A 检查 B 未安装的应用程序 A 和 B 吗？ [复制]

Question

我不得不在我的安卓手机上使用两个应用程序，我命名为 A 和 B。
A 检查 B 未安装在手机中。
我可以这样做吗？
我使用了应用克隆器、APK 编辑器、APK 管理器和其他一些应用来重命名应用名称，但它不起作用。

Answer 1

private boolean appInstalledOrNot(String uri) {
        PackageManager pm = getPackageManager();
        try {
            pm.getPackageInfo(uri, PackageManager.GET_ACTIVITIES);
            return true;
        } catch (PackageManager.NameNotFoundException e) {
        }

        return false;`
    }

您可以在要检查应用程序是否安装的地方调用此方法 希望这会有所帮助

Answer 2

我使用以下方法。

boolean isAppInstalled = appInstalledOrNot("com.check.application");  

    if(isAppInstalled) {
        //This intent will help you to launch if the package is already installed
        Intent LaunchIntent = getPackageManager()
            .getLaunchIntentForPackage("com.check.application");
        startActivity(LaunchIntent);

        Log.i("Application is already installed.");       
    } else {
        // Do whatever we want to do if application not installed
        // For example, Redirect to play store

        Log.i("Application is not currently installed.");
    }

希望有帮助

Answer 3

是的，是的，因为有插件或者代码可以直接帮你检查App是否已经到位。

boolean isAppInstalled = appInstalledOrNot("com.check.application");

if(isAppInstalled) {
    //This intent will help you to launch if the package is already installed
    Intent LaunchIntent = getPackageManager()
        .getLaunchIntentForPackage("com.check.application");
    startActivity(LaunchIntent);

    Log.i("Application is already installed.");       
} else {
    // Do whatever we want to do if application not installed
    // For example, Redirect to play store

    Log.i("Application is not currently installed.");
}