Android 圓角 ImageView類可設定弧度(代碼簡單)_Android

廢話不多說了，直接給大家貼代碼了，具體代碼如下所示：

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);}@Overridepublic 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，有關Android 圓角 ImageView類可設定弧度的內容小編就給大家介紹到這裡，希望對大家有所協助！