小编use*_*346的帖子

我需要检查是否在设备上安装了电子邮件客户端.我使用了以下代码,但它对我不起作用.

public boolean isIntentAvailable() {
    final PackageManager packageManager = getApplicationContext().getPackageManager();
    final Intent intent = new Intent(Intent.ACTION_SEND);
    intent.putExtra(Intent.EXTRA_EMAIL, "vin@gmail.com");
    List<ResolveInfo> list = packageManager.queryIntentActivities(intent, PackageManager.GET_META_DATA);
    return list.size() > 0;
}