Android获取直接拨打电话运行时权限

/**
 * 申请权限
 */
private void requestPermission()
{
    //判断Android版本是否大于23
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M)
    {
        int checkCallPhonePermission = ContextCompat.checkSelfPermission(SearchActivity.this, Manifest.permission.CALL_PHONE);

        if (checkCallPhonePermission != PackageManager.PERMISSION_GRANTED)
        {
            ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.CALL_PHONE},
                    RequestPermissionType.REQUEST_CODE_ASK_CALL_PHONE);
            return;
        }
        else
        {
            callPhone(phone);
        }
    }
    else
    {
        callPhone(phone);
    }
}

/**
 * 注册权限申请回调
 * @param requestCode 申请码
 * @param permissions 申请的权限
 * @param grantResults 结果
 */
@Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults)
{
    switch (requestCode)
    {
        case  RequestPermissionType.REQUEST_CODE_ASK_CALL_PHONE:
            if (grantResults[0] == PackageManager.PERMISSION_GRANTED)
            {
                callPhone(phone);
            }
            else
            {
                // Permission Denied
                Toast.makeText(SearchActivity.this, "CALL_PHONE Denied", Toast.LENGTH_SHORT).show();
            }
            break;
        default:
            super.onRequestPermissionsResult(requestCode, permissions, grantResults);
    }
}

/**
 * 拨号方法
 */
private void callPhone(String phone)
{
    Intent intent = new Intent();
    intent.setAction(Intent.ACTION_CALL);
    intent.setData(Uri.parse("tel:"+phone));
    startActivity(intent);
}