如何在 Android 中为 Marshmallow 创建一个 phone 呼叫按钮

How to make a phone call button in Android for Marshmallow

我正在尝试在 Android 中创建一个呼叫按钮。我创建了一个,它适用于所有类型的 Android 设备,但不适用于 Marshmallow。我不知道为什么。如何为 android Marshmallow 创建调用按钮?

这是我用于调用按钮的代码:

public void button(View v) {

        String number = "12354656";
        Intent intent = new Intent(Intent.ACTION_CALL);
        intent.setData(Uri.parse("tel:" + number));


        if (ActivityCompat.checkSelfPermission(this, android.Manifest.permission.CALL_PHONE) != PackageManager.PERMISSION_GRANTED) {

            return;
        }
        startActivity(intent);

}

此问题可能与 Android 6.0 中引入的 Runtime Permissions 有关。

你可以试试这个:

if (ContextCompat.checkSelfPermission(this, Manifest.permission.CALL_PHONE) != PackageManager.PERMISSION_GRANTED) {
    ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.CALL_PHONE},REQUEST_PHONE_CALL);
}
else
{
    startActivity(intent);
}

您需要在 phone 设置中为您的应用启用权限。查看设置中的权限

你一定要试试这个...

输入您的 android 清单

<uses-permission android:name="android.permission.CALL_PHONE" />

获取 make phone 调用的运行时权限(Android API 版本 23 及以上)

private static final int REQUEST_PERMISSION_CALL = 111;

if (ContextCompat.checkSelfPermission(getActivity(),
                Manifest.permission.CALL_PHONE)
                != PackageManager.PERMISSION_GRANTED) {
            if (ActivityCompat.shouldShowRequestPermissionRationale(getActivity(),
                    Manifest.permission.CALL_PHONE)) {
                ActivityCompat.requestPermissions(this, getString(R.string.app_need_call_permission),
                        REQUEST_PERMISSION_CALL, Manifest.permission.CALL_PHONE);
            } else {
                ActivityCompat.requestPermissions(this, getString(R.string.app_need_call_permission),
                        REQUEST_PERMISSION_CALL, Manifest.permission.CALL_PHONE);
            }
        }

您将在

上获得许可响应
@Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        if (requestCode == REQUEST_PERMISSION_CALL) {
            // put your code here to make call
        }
    }

然后您必须拨打 phone 电话

Uri number = Uri.parse("tel:123456789");
Intent callIntent = new Intent(Intent.ACTION_DIAL, number);
startActivity(callIntent);

了解更多信息https://developer.android.com/training/permissions/requesting.html

希望对您有所帮助。