自定义图形框样式一

布局

 <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent">
            <com.finance.geex253.geexfinance.view.RoundOfHeadImageView
                android:id="@+id/imageUpLoadItemImg"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:scaleType="fitXY"
                android:layout_alignParentBottom="true"/>

        </RelativeLayout>

自定义view

public class RoundOfHeadImageView extends ImageView {

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

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

    private final RectF roundRect  = new RectF();
    private       float rect_adius = 4;//此时是矩形框，50为圆形框，自行修改
    private final Paint maskPaint  = new Paint();
    private final Paint zonePaint  = new Paint();

    private void init() {
        maskPaint.setAntiAlias(true);
        maskPaint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
        //
        zonePaint.setAntiAlias(true);
        //zonePaint.setColor(Color.WHITE);
        zonePaint.setColor(Color.parseColor("#D7D7D7"));

        float density = getResources().getDisplayMetrics().density;
        rect_adius = rect_adius * density;
    }

    public void setRectAdius(float adius) {
        rect_adius = adius;
        invalidate();
    }

    @Override
    protected void onLayout(boolean changed, int left, int top, int right,
                            int bottom) {
        super.onLayout(changed, left, top, right, bottom);
        int w = getWidth();
        int h = getHeight();
        roundRect.set(0, 0, w, h);


    }

    @Override
    public void draw(Canvas canvas) {
        canvas.saveLayer(roundRect, zonePaint, Canvas.ALL_SAVE_FLAG);
        canvas.drawRoundRect(roundRect, rect_adius, rect_adius, zonePaint);
        //
        canvas.saveLayer(roundRect, maskPaint, Canvas.ALL_SAVE_FLAG);
        super.draw(canvas);
        canvas.restore();
    }
}