[android help] Setting progressbar's progressDrawable

Setting progressbar's progressDrawable

Im trying to create a custom progressbar. Im trying to only make half of the progressbar filled with blue color. But the result is that the whole bar gets filled eventhough i set the progress to be half of the maximum! This is my code:

xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >

    android:id="@+id/textView1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="@string/hello_world" />

    android:id="@+id/batteryProgressBar1"
    style="?android:attr/progressBarStyleHorizontal"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignLeft="@+id/textView1"
    android:layout_alignParentRight="true"
    android:layout_below="@+id/textView1"
    android:layout_marginTop="26dp"/>

and the custom class:

public class BatteryProgressBar extends ProgressBar {

public BatteryProgressBar(Context context) {
    super(context);
    init();

}

public BatteryProgressBar(Context context, AttributeSet attrs) {
    super(context, attrs);
    init();
}

public BatteryProgressBar(Context context, AttributeSet attrs, int defStyle) {
    super(context, attrs, defStyle);
    init();
}

@Override
protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);
}

private void init() {
    setProgressDrawable(getResources().getDrawable(R.drawable.blue));
    setMax(100);
    setProgress(50);
}

}

and my blue color comes from

Why is the whole bar filled when im only setting it to be 50% filled?

Thanks!

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