问Android -如何在Android上设置以✔为文本的按钮上的文本颜色

EN

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/coordinator"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <Button
        android:id="@+id/btn"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@mipmap/ic_launcher"
        android:hint="hii" />
</LinearLayout >

public class SixthActivity extends AppCompatActivity {

    Button btn;

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.first_activity);
        btn = (Button) findViewById(R.id.btn);

        btn.setText("");
        btn.setBackgroundColor(getResources().getColor(R.color.white));
        btn.setBackgroundResource(R.mipmap.ic_launcher);
    }
}

<Button
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Load More"
    android:id="@+id/loadMore"
    android:drawableLeft="@drawable/your_marked_icon"
    android:drawableRight="@drawable/another_icon_if_need"
    style="?android:attr/borderlessButtonStyle"
    android:layout_centerHorizontal="true" />

Drawable top = getResources().getDrawable(R.drawable.image);
//placement is like that : left, top, right, bottom
button.setCompoundDrawablesWithIntrinsicBounds(null, top , null, null);

public static Drawable setTint(Drawable d, int color) {
    Drawable wrappedDrawable = DrawableCompat.wrap(d);
    DrawableCompat.setTint(wrappedDrawable, color);
    return wrappedDrawable;
}