dialog_update.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="@android:color/transparent"
    android:paddingLeft="@dimen/size_20"
    android:paddingRight="@dimen/size_20">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@drawable/bg_rectangle_white_radius"
        android:gravity="center_horizontal"
        android:orientation="vertical">

        <TextView
            android:id="@+id/txt_title"
            style="@style/txt_big"
            android:layout_marginBottom="@dimen/size_20"
            android:layout_marginTop="@dimen/size_20"
            android:text="@string/app_version_update" />

        <View style="@style/line_h" />

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical"
            android:visibility="visible">

            <TextView
                android:id="@+id/pack_content"
                style="@style/txt_normal"
                android:padding="@dimen/size_15" />

            <TextView
                android:id="@+id/pack_size"
                style="@style/txt_normal"
                android:layout_width="match_parent"
                android:gravity="left"
                android:paddingLeft="@dimen/size_15" />

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginBottom="@dimen/size_12"
                android:layout_marginLeft="@dimen/size_15"
                android:layout_marginRight="@dimen/size_15"
                android:layout_marginTop="@dimen/size_30"
                android:orientation="vertical">

                <TextView
                    android:id="@+id/txt_sure"
                    android:layout_width="match_parent"
                    android:layout_height="@dimen/size_45"
                    android:background="@drawable/btn_accont_grey_radius"
                    android:gravity="center"
                    android:text="@string/sure"
                    android:textColor="@color/white"
                    android:textSize="@dimen/text_size_16" />

                <TextView
                    android:id="@+id/txt_browsers"
                    android:layout_width="match_parent"
                    android:layout_height="@dimen/size_45"
                    android:layout_marginTop="@dimen/size_10"
                    android:background="@drawable/btn_accont_grey_radius"
                    android:gravity="center"
                    android:text="@string/go_browsers"
                    android:textColor="@color/white"
                    android:textSize="@dimen/text_size_16" />

                <TextView
                    android:id="@+id/txt_cancel"
                    android:layout_width="match_parent"
                    android:layout_height="@dimen/size_45"
                    android:layout_marginTop="@dimen/size_10"
                    android:background="@drawable/bg_white_border_accent_rectangle"
                    android:gravity="center"
                    android:text="@string/cancel"
                    android:textColor="@color/colorAccent"
                    android:textSize="@dimen/text_size_16" />

            </LinearLayout>
        </LinearLayout>

        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="@dimen/size_120"
            android:visibility="gone">

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_centerInParent="true"
                android:layout_marginLeft="@dimen/size_15"
                android:layout_marginRight="@dimen/size_15"
                android:orientation="vertical">

                <ProgressBar
                    style="?android:attr/progressBarStyleHorizontal"
                    android:layout_width="match_parent"
                    android:layout_height="@dimen/size_10"
                    android:max="100"
                    android:progress="50"
                    android:progressDrawable="@drawable/bg_progress_rount_border_accent" />

                <TextView
                    style="@style/txt_normal"
                    android:layout_marginTop="@dimen/size_10"
                    android:text="60%"
                    android:textColor="@color/colorAccent" />
            </LinearLayout>
        </RelativeLayout>
    </LinearLayout>
</RelativeLayout>