Для SVG RatingBar Я использовал RatingBar, пользовательский Vector Drawables, накладывающий и ответ erdomester здесь Это решение пересекает все элементы рисования в представлении SvgRatingBar вашего макета, поэтому в RecyclerView оно имеет накладные расходы.
SvgRatingBar.java:
import android.annotation.SuppressLint;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapShader;
import android.graphics.Canvas;
import android.graphics.Shader;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.ClipDrawable;
import android.graphics.drawable.Drawable;
import android.graphics.drawable.LayerDrawable;
import android.graphics.drawable.ShapeDrawable;
import android.graphics.drawable.VectorDrawable;
import android.graphics.drawable.shapes.RoundRectShape;
import android.graphics.drawable.shapes.Shape;
import android.os.Build;
import android.support.graphics.drawable.VectorDrawableCompat;
import android.support.v7.graphics.drawable.DrawableWrapper;
import android.support.v7.widget.AppCompatRatingBar;
import android.util.AttributeSet;
import android.view.Gravity;
public class SvgRatingBar extends AppCompatRatingBar {
private Bitmap sampleTile;
public SvgRatingBar(Context context) {
this(context, null);
}
public SvgRatingBar(Context context, AttributeSet attrs) {
this(context, attrs, android.support.v7.appcompat.R.attr.ratingBarStyle);
}
public SvgRatingBar(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
init();
}
private void init() {
LayerDrawable drawable = (LayerDrawable) createTile(getProgressDrawable(), false);
setProgressDrawable(drawable);
}
/**
* Converts a drawable to a tiled version of itself. It will recursively
* traverse layer and state list drawables.
*/
@SuppressLint("RestrictedApi")
private Drawable createTile(Drawable drawable, boolean clip) {
if (drawable instanceof DrawableWrapper) {
Drawable inner = ((DrawableWrapper) drawable).getWrappedDrawable();
if (inner != null) {
inner = createTile(inner, clip);
((DrawableWrapper) drawable).setWrappedDrawable(inner);
}
} else if (drawable instanceof LayerDrawable) {
LayerDrawable background = (LayerDrawable) drawable;
final int n = background.getNumberOfLayers();
Drawable[] outDrawables = new Drawable[n];
for (int i = 0; i < n; i++) {
int id = background.getId(i);
outDrawables[i] = createTile(background.getDrawable(i),
(id == android.R.id.progress || id == android.R.id.secondaryProgress));
}
LayerDrawable newBg = new LayerDrawable(outDrawables);
for (int i = 0; i < n; i++) {
newBg.setId(i, background.getId(i));
}
return newBg;
} else if (drawable instanceof BitmapDrawable) {
final BitmapDrawable bitmapDrawable = (BitmapDrawable) drawable;
final Bitmap tileBitmap = bitmapDrawable.getBitmap();
if (sampleTile == null) {
sampleTile = tileBitmap;
}
final ShapeDrawable shapeDrawable = new ShapeDrawable(getDrawableShape());
final BitmapShader bitmapShader = new BitmapShader(tileBitmap,
Shader.TileMode.REPEAT, Shader.TileMode.CLAMP);
shapeDrawable.getPaint().setShader(bitmapShader);
shapeDrawable.getPaint().setColorFilter(bitmapDrawable.getPaint().getColorFilter());
return (clip) ? new ClipDrawable(shapeDrawable, Gravity.START,
ClipDrawable.HORIZONTAL) : shapeDrawable;
} else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP && drawable instanceof VectorDrawable) {
return createTile(getBitmapDrawableFromVectorDrawable(drawable), clip);
} else if (drawable instanceof VectorDrawableCompat) {
// API 19 support.
return createTile(getBitmapDrawableFromVectorDrawable(drawable), clip);
}
return drawable;
}
private BitmapDrawable getBitmapDrawableFromVectorDrawable(Drawable drawable) {
Bitmap bitmap = Bitmap.createBitmap(drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
drawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
drawable.draw(canvas);
return new BitmapDrawable(getResources(), bitmap);
}
@Override
protected synchronized void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
if (sampleTile != null) {
final int width = sampleTile.getWidth() * getNumStars();
setMeasuredDimension(resolveSizeAndState(width, widthMeasureSpec, 0),
getMeasuredHeight());
}
}
private Shape getDrawableShape() {
final float[] roundedCorners = new float[]{5, 5, 5, 5, 5, 5, 5, 5};
return new RoundRectShape(roundedCorners, null, null);
}
}
В вашем макете:
<com.example.common.control.SvgRatingBar
android:id="@+id/rate"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:minHeight="13dp"
android:numStars="5"
android:progressDrawable="@drawable/rating_bar"
android:rating="3.5"
android:stepSize="0.01"
/>
Вы также должны создать rating_bar.xml с двумя рисунками SVG:
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:id="@android:id/background"
android:drawable="@drawable/ic_unfilled_star"
/>
<item
android:id="@android:id/secondaryProgress"
android:drawable="@drawable/ic_unfilled_star"
/>
<item
android:id="@android:id/progress"
android:drawable="@drawable/ic_filled_star"
/>
</layer-list>
