如果未安装intent,请下载app

Question

我知道我已经看到了一种调用Intent的方法,如果它不存在,该函数将重定向到市场下载具有意图的应用程序.

现在我检查Intent是否存在,但我不知道如何将用户指向要下载的资源.

提前致谢

Answer 1

要检查某些Intent是否可用:

String intentToCheck = "com.google.SCAN"; //can be any other intent
final PackageManager packageManager = getPackageManager();
final Intent intent = new Intent(intentToCheck);
List list = packageManager.queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY);
final boolean isAvailable = list.size() > 0;

通过Intent打开Goog​​le Market:

Intent marketIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("market://search?q=pname:com.google.scan"));
startActivity(marketIntent);