自定義抽屜

使用 Drawable 擴充套件你的類並覆蓋這些方法

public class IconDrawable extends Drawable {
    /**
     * Paint for drawing the shape
     */
    private Paint paint;
    /**
     * Icon drawable to be drawn to the center of the shape
     */
    private Drawable icon;
    /**
     * Desired width and height of icon
     */
    private int desiredIconHeight, desiredIconWidth;

    /**
     * Public constructor for the Icon drawable
     *
     * @param icon            pass the drawable of the icon to be drawn at the center
     * @param backgroundColor background color of the shape
     */
    public IconDrawable(Drawable icon, int backgroundColor) {
        this.icon = icon;
        paint = new Paint(Paint.ANTI_ALIAS_FLAG);
        paint.setColor(backgroundColor);
        desiredIconWidth = 50;
        desiredIconHeight = 50;
    }

    @Override
    public void draw(Canvas canvas) {
        //if we are setting this drawable to a 80dpX80dp imageview 
        //getBounds will return that measurements,we can draw according to that width.
        Rect bounds = getBounds();
        //drawing the circle with center as origin and center distance as radius
        canvas.drawCircle(bounds.centerX(), bounds.centerY(), bounds.centerX(), paint);
        //set the icon drawable's bounds to the center of the shape
        icon.setBounds(bounds.centerX() - (desiredIconWidth / 2), bounds.centerY() - (desiredIconHeight / 2), (bounds.centerX() - (desiredIconWidth / 2)) + desiredIconWidth, (bounds.centerY() - (desiredIconHeight / 2)) + desiredIconHeight);
        //draw the icon to the bounds
        icon.draw(canvas);

    }

    @Override
    public void setAlpha(int alpha) {
        //sets alpha to your whole shape
        paint.setAlpha(alpha);
    }

    @Override
    public void setColorFilter(ColorFilter colorFilter) {
       //sets color filter to your whole shape
        paint.setColorFilter(colorFilter);
    }

    @Override
    public int getOpacity() {
        //give the desired opacity of the shape
        return PixelFormat.TRANSLUCENT;
    }
}

在佈局中宣告 ImageView

<ImageView
   android:layout_width="80dp"
   android:id="@+id/imageView"
   android:layout_height="80dp" />

將自定義 drawable 設定為 ImageView

 IconDrawable iconDrawable=new IconDrawable(ContextCompat.getDrawable(this,android.R.drawable.ic_media_play),ContextCompat.getColor(this,R.color.pink_300));
 imageView.setImageDrawable(iconDrawable);

截圖