废话不多说了，直接给大家贴代码了，具体代码如下所示：
public class RoundImageView extends ImageView { private Paint paint; private int roundWidth = 50; private int roundHeight = 50; private Paint paint2; public RoundImageView(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); init(context, attrs); } public RoundImageView(Context context, AttributeSet attrs) { super(context, attrs); init(context, attrs); } public void SetRoundValue(float roundValue) { roundWidth = (int) roundValue; roundHeight = (int) roundValue; } public RoundImageView(Context context) { super(context); init(context, null); } @SuppressLint("Recycle") private void init(Context context, AttributeSet attrs) { if (attrs != null) { TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.RoundAngleImageView); roundWidth = a.getDimensionPixelSize(R.styleable.RoundAngleImageView_roundWidth, roundWidth); roundHeight = a.getDimensionPixelSize(R.styleable.RoundAngleImageView_roundHeight, roundHeight); } else { float density = context.getResources().getDisplayMetrics().density; roundWidth = (int) (roundWidth * density); roundHeight = (int) (roundHeight * density); } paint = new Paint(); paint.setColor(Color.WHITE); paint.setAntiAlias(true); paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.DST_OUT)); paint2 = new Paint(); paint2.setXfermode(null); } @Override public void draw(Canvas canvas) { Bitmap bitmap = Bitmap.createBitmap(getWidth(), getHeight(), Config.ARGB_8888); Canvas canvas2 = new Canvas(bitmap); super.draw(canvas2); drawLiftUp(canvas2); drawRightUp(canvas2); drawLiftDown(canvas2); drawRightDown(canvas2); canvas.drawBitmap(bitmap, 0, 0, paint2); bitmap.recycle(); bitmap = null; } private void drawLiftUp(Canvas canvas) { Path path = new Path(); path.moveTo(0, roundHeight); path.lineTo(0, 0); path.lineTo(roundWidth, 0); path.arcTo(new RectF(0, 0, roundWidth * 2, roundHeight * 2), -90, -90); path.close(); canvas.drawPath(path, paint); } private void drawLiftDown(Canvas canvas) { Path path = new Path(); path.moveTo(0, getHeight() - roundHeight); path.lineTo(0, getHeight()); path.lineTo(roundWidth, getHeight()); path.arcTo(new RectF(0, getHeight() - roundHeight * 2, 0 + roundWidth * 2, getWidth()), 90, 90); path.close(); canvas.drawPath(path, paint); } private void drawRightDown(Canvas canvas) { Path path = new Path(); path.moveTo(getWidth() - roundWidth, getHeight()); path.lineTo(getWidth(), getHeight()); path.lineTo(getWidth(), getHeight() - roundHeight); path.arcTo(new RectF(getWidth() - roundWidth * 2, getHeight() - roundHeight * 2, getWidth(), getHeight()), 0, 90); path.close(); canvas.drawPath(path, paint); } private void drawRightUp(Canvas canvas) { Path path = new Path(); path.moveTo(getWidth(), roundHeight); path.lineTo(getWidth(), 0); path.lineTo(getWidth() - roundWidth, 0); path.arcTo(new RectF(getWidth() - roundWidth * 2, 0, getWidth(), 0 + roundHeight * 2), -90, 90); path.close(); canvas.drawPath(path, paint); } }
好了，有关Android 圆角 ImageView类可设置弧度的内容小编就给大家介绍到这里，希望对大家有所帮助！