ShapeDrawable作为Android中RatingBar的progressDrawable？

似乎我不能将ShapeDrawable设置为Ratingbar的progressDrawable.我尝试了以下但失败了：

<RatingBar
android:id="@+id/ratingbar"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:numStars="5"
android:stepSize="1.0"
android:rating="3.0"
style="@style/myRatingBar"
/>

myRatingbar风格：

<style name="myRatingBar" parent="@android:style/Widget.RatingBar">
<item name="android:progressDrawable">@drawable/ratingbar_full</item>
<item name="android:indeterminateDrawable">@drawable/ratingbar_full</item>
<item name="android:minHeight">48dip</item>
<item name="android:maxHeight">48dip</item>
<item name="android:scaleType">center</item>
</style>

ratingbar_full.xml：

    <shape 
       android:shape="ring"
       android:innerRadius="10dip"
       android:thickness="1dip">
       <solid android:color="@color/red" />
       <size
           android:width="48dip"
           android:height="48dip"
       />
    </shape>

屏幕上没有显示任何内容.

编辑：使用.png而不是形状适用于此行：

@drawable/ratingbar_full

解决方法:

我自定义了@ChrisJenkins方法,因此您可以设置RatingBar图标的大小和评级图像的自定义色调颜色.您可以在RatingBar上设置填充或设置自定义宽度和高度. @ChrisJenkins解决方案帮助我最终想出了一个完全可定制的RatingBar.您也可以在XML中设置参数.

public class DrawableRatingBar extends RatingBar
{
// TileBitmap to base the width and hight off of.
@Nullable
private Bitmap iconTile;
private float scaleIconFactor;
private @ColorInt int iconBackgroundColor;
private @ColorInt int iconForegroundColor;
private @DrawableRes int iconDrawable;

public DrawableRatingBar(Context context)
{
    super(context);
    init();
}

public DrawableRatingBar(Context context, AttributeSet attrs)
{
    super(context, attrs);

    TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.DrawableRatingBarItem);
    scaleIconFactor = a.getFloat(R.styleable.DrawableRatingBarItem_scaleIconFactor, 1);
    iconBackgroundColor = a.getColor(R.styleable.DrawableRatingBarItem_iconBackgroundColor, Color.BLACK);
    iconForegroundColor = a.getColor(R.styleable.DrawableRatingBarItem_iconForegroundColor, Color.WHITE);
    iconDrawable = a.getResourceId(R.styleable.DrawableRatingBarItem_iconDrawable, -1);
    a.recycle();

    init();
}

public DrawableRatingBar(Context context, AttributeSet attrs, int defStyleAttr)
{
    super(context, attrs, defStyleAttr);
    init();
}

@TargetApi(Build.VERSION_CODES.LOLLIPOP)
public DrawableRatingBar(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes)
{
    super(context, attrs, defStyleAttr, defStyleRes);
    init();
}

private void init()
{
    setProgressDrawable(createProgressDrawable());
}

@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec)
{
    super.onMeasure(widthMeasureSpec, heightMeasureSpec);

    if (iconTile != null)
    {
        final int width = iconTile.getWidth() * getNumStars();
        final int height = iconTile.getHeight();
        setMeasuredDimension(resolveSizeAndState(width, widthMeasureSpec, 0),
                             resolveSizeAndState(height, heightMeasureSpec, 0));
    }
}

protected LayerDrawable createProgressDrawable()
{
    final Drawable backgroundDrawable = createBackgroundDrawableShape();
    LayerDrawable layerDrawable = new LayerDrawable(new Drawable[] {backgroundDrawable,
                                                                    backgroundDrawable,
                                                                    createProgressDrawableShape()});
    layerDrawable.setId(0, android.R.id.background);
    layerDrawable.setId(1, android.R.id.secondaryProgress);
    layerDrawable.setId(2, android.R.id.progress);
    return layerDrawable;
}

protected Drawable createBackgroundDrawableShape()
{
    Drawable drawable = ContextCompat.getDrawable(getContext(), iconDrawable);

    final Bitmap tileBitmap = scaleImageWithColor(drawable, scaleIconFactor, iconBackgroundColor);
    if (iconTile == null)
    {
        iconTile = tileBitmap;
    }
    final ShapeDrawable shapeDrawable = new ShapeDrawable(getDrawableShape());
    final BitmapShader bitmapShader = new BitmapShader(tileBitmap, Shader.TileMode.REPEAT, Shader.TileMode.CLAMP);
    shapeDrawable.getPaint().setShader(bitmapShader);

    return shapeDrawable;
}


private void setRatingStarColor(Drawable drawable, @ColorInt int color)
{
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP)
    {
        DrawableCompat.setTint(drawable, color);
    }
    else
    {
        drawable.setColorFilter(color, PorterDuff.Mode.SRC_IN);
    }
}

protected Drawable createProgressDrawableShape()
{
    Drawable drawable = ContextCompat.getDrawable(getContext(), iconDrawable);

    final Bitmap tileBitmap = scaleImageWithColor(drawable, scaleIconFactor, iconForegroundColor);
    final ShapeDrawable shapeDrawable = new ShapeDrawable(getDrawableShape());
    final BitmapShader bitmapShader = new BitmapShader(tileBitmap, Shader.TileMode.REPEAT, Shader.TileMode.CLAMP);
    shapeDrawable.getPaint().setShader(bitmapShader);
    return new ClipDrawable(shapeDrawable, Gravity.LEFT, ClipDrawable.HORIZONTAL);
}

Shape getDrawableShape()
{
    return new RectShape();
}

public Bitmap scaleImageWithColor(Drawable drawable, float scaleFactor, @ColorInt int color)
{
    Bitmap b = ((BitmapDrawable) drawable).getBitmap();

    int sizeX = Math.round(drawable.getIntrinsicWidth() * scaleFactor);
    int sizeY = Math.round(drawable.getIntrinsicHeight() * scaleFactor);

    Bitmap bitmapResized = Bitmap.createScaledBitmap(b, sizeX, sizeY, true);

    Canvas canvas = new Canvas(bitmapResized);
    Paint paint = new Paint(Paint.FILTER_BITMAP_FLAG);
    paint.setAntiAlias(true);
    ColorFilter filter = new LightingColorFilter(color, 1);
    paint.setColorFilter(filter);
    canvas.drawBitmap(bitmapResized, 0, 0, paint);

    return bitmapResized;

}

protected Bitmap fromDrawable(final Drawable drawable, final int height, final int width) {
    final Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
    final Canvas canvas = new Canvas(bitmap);
    drawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
    drawable.draw(canvas);
    return bitmap;
}

public float getScaleIconFactor() {
    return scaleIconFactor;
}

public void setScaleIconFactor(float scaleIconFactor) {
    this.scaleIconFactor = scaleIconFactor;
}

public int getIconForegroundColor() {
    return iconForegroundColor;
}

public void setIconForegroundColor(int iconForegroundColor) {
    this.iconForegroundColor = iconForegroundColor;
}

public int getIconBackgroundColor() {
    return iconBackgroundColor;
}

public void setIconBackgroundColor(int iconBackgroundColor) {
    this.iconBackgroundColor = iconBackgroundColor;
}

public int getIconDrawable() {
    return iconDrawable;
}

public void setIconDrawable(int iconDrawable) {
    this.iconDrawable = iconDrawable;
}

}

自定义属性：

<declare-styleable name="DrawableRatingBarItem">
    <attr name="scaleIconFactor" format="float"/>
    <attr name="iconBackgroundColor" format="color"/>
    <attr name="iconForegroundColor" format="color"/>
    <attr name="iconDrawable" format="reference"/>
</declare-styleable>

标签：android,android-ui,ratingbar,shapedrawable
来源： https://codeday.me/bug/20191007/1863733.html