How to prevent an application from being uninstalled from Letv,Mi,RedMi device?

Question

I read a Question , it is only some how helpful for me , but the answers are not working in LEtv,Mi and RedMi devices .

My appliation has Device Administration rights, then also the applications is uninstalled from LEtv,Mi & RedMi devices . any one have solution for preventing app uninstall from LEtv,Mi & RedMi devices?

my ManifestFile

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.androidsrc.sampledeviceadmin"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="14"
        android:targetSdkVersion="25" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <receiver
            android:name=".SampleDeviceAdminReceiver"
            android:permission="android.permission.BIND_DEVICE_ADMIN" >
            <meta-data
                android:name="android.app.device_admin"
                android:resource="@xml/device_admin" />

            <intent-filter>
                <action android:name="android.app.action.DEVICE_ADMIN_ENABLED" />
                <action android:name="android.app.action.DEVICE_ADMIN_DISABLE_REQUESTED" />
                <action android:name="android.app.action.DEVICE_ADMIN_DISABLED" />
            </intent-filter>
        </receiver>
    </application>

</manifest>

device_admin.xml

<?xml version="1.0" encoding="utf-8"?>
<device-admin xmlns:android="http://schemas.android.com/apk/res/android" >
    <uses-policies>
        <force-lock />
    </uses-policies>
</device-admin>