public class

CornerDrawable

extends InsetDrawable

 java.lang.Object

↳InsetDrawable

↳androidx.slice.CornerDrawable

Gradle dependencies

compile group: 'androidx.slice', name: 'slice-core', version: '1.1.0-alpha02'

  • groupId: androidx.slice
  • artifactId: slice-core
  • version: 1.1.0-alpha02

Artifact androidx.slice:slice-core:1.1.0-alpha02 it located at Google repository (https://maven.google.com/)

Androidx artifact mapping:

androidx.slice:slice-core com.android.support:slices-core

Overview

A wrapper for Drawables that uses a path to add mask for corners around the drawable, to match the radius of the underlying shape.

Summary

Constructors
publicCornerDrawable(Drawable drawable, float cornerRadius)

Methods
public voiddraw(Canvas canvas)

protected voidonBoundsChange(Rect r)

from java.lang.Objectclone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructors

public CornerDrawable(Drawable drawable, float cornerRadius)

Methods

public void draw(Canvas canvas)

protected void onBoundsChange(Rect r)

Source

/*
 * Copyright (C) 2014 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package androidx.slice;

import android.graphics.Canvas;
import android.graphics.Path;
import android.graphics.Rect;
import android.graphics.RectF;
import android.graphics.drawable.Drawable;
import android.graphics.drawable.InsetDrawable;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.annotation.RestrictTo;

 /**
 * A wrapper for Drawables that uses a path to add mask for corners around the drawable,
 * to match the radius of the underlying shape.
 *
 * @hide
 */
@RestrictTo(RestrictTo.Scope.LIBRARY_GROUP)
public class CornerDrawable extends InsetDrawable {
    private float mCornerRadius;
    private final Path mPath = new Path();

    public CornerDrawable(@Nullable Drawable drawable, float cornerRadius) {
        super(drawable, 0);
        mCornerRadius = cornerRadius;
    }

    @Override
    public void draw(@NonNull Canvas canvas) {
        int saveCount = canvas.save();
        canvas.clipPath(mPath);
        super.draw(canvas);
        canvas.restoreToCount(saveCount);
    }

    @Override
    protected void onBoundsChange(@Nullable Rect r) {
        if (mPath != null) {
            mPath.reset();
            mPath.addRoundRect(new RectF(r), mCornerRadius, mCornerRadius, Path.Direction.CW);
        }
        super.onBoundsChange(r);
    }
}