自定义控件 RoundImageView
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闲聊
自定义的圆形图像控件已经很多了，我在这儿呢，多实现了几种。
先上效果图，再上代码
效果图
实例
自定义属性<declare-styleable name="RoundImageView"> <!--The way the picture is displayed--> <attr name="imageMode"> <!--Don't make any changes--> <enum name="none" value="0" /> <!--Shows a rounded rectangle--> <enum name="roundRect" value="1" /> <!--It's going to be a circle--> <enum name="circle" value="2" /> <!--Display as an ellipse--> <enum name="oval" value="3" /> </attr> <!--Injection mode of boundary layer--> <attr name="borderMode"> <!--Cover the boundary of the image--> <enum name="cover" value="0" /> <!--Add width to the image--> <enum name="append" value="1" /> <!--Subtract the width from the image--> <enum name="subtract" value="2" /> </attr> <!--Width of boundary--> <attr name="borderWidth" format="dimension" /> <!--Color of boundary--> <attr name="borderColor" format="color" /> <!--The round Angle of the rounded rectangle--> <attr name="radius" format="dimension" /> <!--The round Angle of the rounded rectangle , The upper left corner--> <attr name="upperLeftRadius" format="dimension" /> <!--The round Angle of the rounded rectangle , The upper right corner--> <attr name="upperRightRadius" format="dimension" /> <!--The round Angle of the rounded rectangle , The lower right corner--> <attr name="lowerRightRadius" format="dimension" /> <!--The round Angle of the rounded rectangle , The lower left corner--> <attr name="lowerLeftRadius" format="dimension" /></declare-styleable>一个自定义RoundImageViewpublic class RoundImageView extends ImageView { private static final String TAG = "RoundImageView"; private boolean DEBUG = false;//Whether to open the "DeBug" mode private static final float OFFSET = 10f;//Define an offset to make it clear that you can't erase an image private static final int COLOR_BITMAP_SIZE = 2;//The size of the color bitmap private ImageMode imageMode = ImageMode.NONE;//The way the picture is displayed private BorderMode borderMode = BorderMode.COVER;//Injection mode of boundary layer private int borderWidth = -1;//Width of boundary private int borderColor = Color.BLACK;//Color of boundary private float upperLeftRadius = -1f;//The round Angle of the rounded rectangle , The upper left corner private float upperRightRadius = -1f;//The round Angle of the rounded rectangle , The upper right corner private float lowerRightRadius = -1f;//The round Angle of the rounded rectangle , The lower right corner private float lowerLeftRadius = -1f;//The round Angle of the rounded rectangle , The lower left corner private Paint paint;//Create a brush private Path path;//Create a drawing path private Path borderPath;//Create a drawing border path private float mScale;//The proportion calculated according to the demand private float width,//Width of view height,//Height of view bitmapWidth,//Bitmap width bitmapHeight;//Bitmap height private BitmapShader bitmapShader;//The bitmap rendering private Matrix matrix;//Rendered matrix private float startX;//The initial X coordinate of the drawing private float startY;//The initial Y coordinates of the drawing private RectF frameRectF;//Frame matrix public RoundImageView(Context context) { super(context); init(context, null); } public RoundImageView(Context context, AttributeSet attrs) { super(context, attrs); init(context, attrs); } public RoundImageView(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); init(context, attrs); } @TargetApi(Build.VERSION_CODES.LOLLIPOP) public RoundImageView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) { super(context, attrs, defStyleAttr, defStyleRes); init(context, attrs); } private void init(Context context, AttributeSet attrs) { if (null != attrs) { TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.RoundImageView); /*********************************************************************/ imageMode = ImageMode.getImageMode(a.getInteger(R.styleable.RoundImageView_imageMode, 0)); /*********************************************************************/ borderMode = BorderMode.getBorderMode(a.getInteger(R.styleable.RoundImageView_borderMode, 0)); /*********************************************************************/ borderWidth = a.getDimensionPixelOffset(R.styleable.RoundImageView_borderWidth, -1); /*********************************************************************/ borderColor = a.getColor(R.styleable.RoundImageView_borderColor, Color.BLACK); /*********************************************************************/ float radius = a.getDimension(R.styleable.RoundImageView_radius, -1f); /*********************************************************************/ upperLeftRadius = a.getDimension(R.styleable.RoundImageView_upperLeftRadius, -1f); if (upperLeftRadius == -1f) { upperLeftRadius = radius; } /*********************************************************************/ upperRightRadius = a.getDimension(R.styleable.RoundImageView_upperRightRadius, -1f); if (upperRightRadius == -1f) { upperRightRadius = radius; } /*********************************************************************/ lowerRightRadius = a.getDimension(R.styleable.RoundImageView_lowerRightRadius, -1f); if (lowerRightRadius == -1f) { lowerRightRadius = radius; } /*********************************************************************/ lowerLeftRadius = a.getDimension(R.styleable.RoundImageView_lowerLeftRadius, -1f); if (lowerLeftRadius == -1f) { lowerLeftRadius = radius; } } Log.d(TAG, "init: " + this); } @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { int widthMode = MeasureSpec.getMode(widthMeasureSpec), widthSize = MeasureSpec.getSize(widthMeasureSpec), heightMode = MeasureSpec.getMode(heightMeasureSpec), heightSize = MeasureSpec.getSize(heightMeasureSpec); if (borderWidth > 0) { if (borderMode.equals(BorderMode.COVER)) { } else if (borderMode.equals(BorderMode.APPEND)) { widthMeasureSpec = MeasureSpec.makeMeasureSpec(widthSize + borderWidth * 2, widthMode); heightMeasureSpec = MeasureSpec.makeMeasureSpec(heightSize + borderWidth * 2, heightMode); } else if (borderMode.equals(BorderMode.SUBTRACT)) { } else { } } super.onMeasure(widthMeasureSpec, heightMeasureSpec); } @Override protected void onLayout(boolean changed, int left, int top, int right, int bottom) { super.onLayout(changed, left, top, right, bottom); } @Override protected void onDraw(Canvas canvas) { if (!setImageContent(canvas)) { super.onDraw(canvas); } } private boolean setImageContent(Canvas canvas) { Bitmap bitmap = getBitmapFromDrawable(getDrawable()); if (null == bitmap) { return false; } if (null == paint) { paint = new Paint(); } /*************************************/ width = getWidth(); height = getHeight(); bitmapWidth = bitmap.getWidth(); bitmapHeight = bitmap.getHeight(); if (borderWidth > 0) { if (borderMode.equals(BorderMode.APPEND) || borderMode.equals(BorderMode.SUBTRACT)) { width = width - borderWidth * 2; height = height - borderWidth * 2; } } /*************************************/ boolean flag = false; if (imageMode.equals(ImageMode.NONE)) { flag = matchNoneContent(canvas, bitmap); } else if (imageMode.equals(ImageMode.ROUNDRECT)) { flag = matchRoundrectContent(canvas, bitmap); } else if (imageMode.equals(ImageMode.CIRCLE)) { flag = matchCircleContent(canvas, bitmap); } else if (imageMode.equals(ImageMode.OVAL)) { flag = matchOvalContent(canvas, bitmap); } paint.reset(); return flag; } private boolean matchNoneContent(Canvas canvas, Bitmap bitmap) { if (borderWidth <= 0) { return false; } //Here, for the sake of the picture, we use the smallest value shown in this picture to divide by the maximum value of the image. mScale = (width < height ? width : height) / (bitmapWidth > bitmapHeight ? bitmapWidth : bitmapHeight); setPaintBitmapShader(bitmap); canvas.drawRect(new RectF(startX, startY, bitmapWidth + startX, bitmapHeight + startY), paint); //canvas.drawBitmap(bitmap, startX, startY, paint); setPaintBorderColor(); if (borderMode.equals(BorderMode.COVER)) { frameRectF = new RectF(startX + borderWidth / 2f, startY + borderWidth / 2f, bitmapWidth + startX - borderWidth / 2f, bitmapHeight + startY - borderWidth / 2f); } else if (borderMode.equals(BorderMode.APPEND) || borderMode.equals(BorderMode.SUBTRACT)) { frameRectF = new RectF(startX - borderWidth / 2f, startY - borderWidth / 2f, bitmapWidth + startX + borderWidth / 2f, bitmapHeight + startY + borderWidth / 2f); } canvas.drawRect(frameRectF, paint); return true; } private boolean matchRoundrectContent(Canvas canvas, Bitmap bitmap) { //Here, for the sake of the picture, we use the smallest value shown in this picture to divide by the maximum value of the image. mScale = (width < height ? width : height) / (bitmapWidth > bitmapHeight ? bitmapWidth : bitmapHeight); //Helper version of saveLayer() that takes 4 values rather than a RectF. //执行了canvas.saveLayer()之后，我们所有的绘制操作都绘制到了我们新建的layer上，而不是canvas默认的layer。 int layer = canvas.saveLayer(0, 0, canvas.getWidth(), canvas.getHeight(), null, Canvas.ALL_SAVE_FLAG); setPaintBitmapShader(bitmap); canvas.drawRect(new RectF(startX, startY, bitmapWidth + startX, bitmapHeight + startY), paint); //Set the brush to the eraser mode paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.CLEAR)); if (isSettingRoundrect()) { float radius = width / 16f; drawLiftUp(canvas, radius); drawLiftDown(canvas, radius); drawRightDown(canvas, radius); drawRightUp(canvas, radius); } else { if (upperLeftRadius > 0f) { drawLiftUp(canvas, upperLeftRadius); } if (upperRightRadius > 0f) { drawRightUp(canvas, upperRightRadius); } if (lowerRightRadius > 0f) { drawRightDown(canvas, lowerRightRadius); } if (lowerLeftRadius > 0f) { drawLiftDown(canvas, lowerLeftRadius); } } //restore paint.setXfermode(null); canvas.restoreToCount(layer); //No border to return if (borderWidth <= 0) { return true; } //Calculate the border position to start the stroke setPaintBorderColor(); drawRoundrectBorder(canvas); return true; } private boolean matchCircleContent(Canvas canvas, Bitmap bitmap) { float min = width < height ? width : height; mScale = min / (bitmapWidth < bitmapHeight ? bitmapWidth : bitmapHeight); setPaintBitmapShader(bitmap); //When drawing circles, you need to render the brush again matrix.set(null); matrix.setScale(mScale, mScale); matrix.postTranslate((getWidth() - bitmapWidth) / 2f, (getHeight() - bitmapHeight) / 2f); bitmapShader.setLocalMatrix(matrix); paint.setShader(bitmapShader); /************************************************************/ canvas.drawCircle(getWidth() / 2f, getHeight() / 2f, min / 2f, paint); //No border to return if (borderWidth <= 0) { return true; } setPaintBorderColor(); if (borderMode.equals(BorderMode.COVER)) { canvas.drawCircle(getWidth() / 2f, getHeight() / 2f, min / 2f - borderWidth / 2f, paint); } else if (borderMode.equals(BorderMode.APPEND) || borderMode.equals(BorderMode.SUBTRACT)) { canvas.drawCircle(getWidth() / 2f, getHeight() / 2f, min / 2f + borderWidth / 2f, paint); } return true; } private boolean matchOvalContent(Canvas canvas, Bitmap bitmap) { mScale = (width > height ? width : height) / (bitmapWidth < bitmapHeight ? bitmapWidth : bitmapHeight); setPaintBitmapShader(bitmap); if (borderMode.equals(BorderMode.COVER)) { canvas.drawOval(new RectF(0, 0, width, height), paint); } else if (borderMode.equals(BorderMode.APPEND) || borderMode.equals(BorderMode.SUBTRACT)) { canvas.drawOval(new RectF(borderWidth, borderWidth, width, height), paint); } if (borderWidth > 0) { setPaintBorderColor(); if (borderMode.equals(BorderMode.COVER)) { canvas.drawOval(new RectF(borderWidth / 2f, borderWidth / 2f, width - borderWidth / 2f, height - borderWidth / 2f), paint); } else if (borderMode.equals(BorderMode.APPEND) || borderMode.equals(BorderMode.SUBTRACT)) { canvas.drawOval(new RectF(borderWidth / 2f, borderWidth / 2f, width + borderWidth / 2f, height + borderWidth / 2f), paint); } } return true; } /** * Draw the border of the rounded rectangle * * @param canvas canvas */ private void drawRoundrectBorder(Canvas canvas) { if (null == borderPath) { borderPath = new Path(); } float radius = width / 16f; radius = anewCalculateRadius(radius); if (isSettingRoundrect()) { if (borderMode.equals(BorderMode.COVER)) { borderPath.moveTo(startX + borderWidth / 2f, startY + radius); borderPath.arcTo(new RectF(startX + borderWidth / 2f, startY + borderWidth / 2f, startX + radius * 2 - borderWidth / 2f, startY + radius * 2 - borderWidth / 2f), 180, 90); borderPath.arcTo(new RectF(startX + bitmapWidth - 2 * radius + borderWidth / 2f, startY + borderWidth / 2f, startX + bitmapWidth - borderWidth / 2f, startY + 2 * radius - borderWidth / 2f), -90, 90); borderPath.arcTo(new RectF(startX + bitmapWidth - 2 * radius + borderWidth / 2f, startY + bitmapHeight - 2 * radius + borderWidth / 2f, startX + bitmapWidth - borderWidth / 2f, startY + bitmapHeight - borderWidth / 2f), 0, 90); borderPath.arcTo(new RectF(startX + borderWidth / 2f, startY + bitmapHeight - 2 * radius + borderWidth / 2f, startX + 2 * radius - borderWidth / 2f, startY + bitmapHeight - borderWidth / 2f), 90, 90); } else if (borderMode.equals(BorderMode.APPEND) || borderMode.equals(BorderMode.SUBTRACT)) { borderPath.moveTo(startX - borderWidth / 2f, startY + radius); borderPath.arcTo(new RectF(startX - borderWidth / 2f, startY - borderWidth / 2f, startX + radius * 2 + borderWidth / 2f, startY + radius * 2 + borderWidth / 2f), 180, 90); borderPath.arcTo(new RectF(startX + bitmapWidth - 2 * radius - borderWidth / 2f, startY - borderWidth / 2f, startX + bitmapWidth + borderWidth / 2f, startY + 2 * radius + borderWidth / 2f), -90, 90); borderPath.arcTo(new RectF(startX + bitmapWidth - 2 * radius - borderWidth / 2f, startY + bitmapHeight - 2 * radius - borderWidth / 2f, startX + bitmapWidth + borderWidth / 2f, startY + bitmapHeight + borderWidth / 2f), 0, 90); borderPath.arcTo(new RectF(startX - borderWidth / 2f, startY + bitmapHeight - 2 * radius - borderWidth / 2f, startX + 2 * radius + borderWidth / 2f, startY + bitmapHeight + borderWidth / 2f), 90, 90); } } else { if (borderMode.equals(BorderMode.COVER)) { if (upperLeftRadius > 0f) { radius = anewCalculateRadius(upperLeftRadius); borderPath.moveTo(startX + borderWidth / 2f, startY + radius); borderPath.arcTo(new RectF(startX + borderWidth / 2f, startY + borderWidth / 2f, startX + radius * 2 - borderWidth / 2f, startY + radius * 2 - borderWidth / 2f), 180, 90); } else { borderPath.moveTo(startX + borderWidth / 2f, startY + borderWidth / 2f); } if (upperRightRadius > 0f) { radius = anewCalculateRadius(upperRightRadius); borderPath.arcTo(new RectF(startX + bitmapWidth - 2 * radius + borderWidth / 2f, startY + borderWidth / 2f, startX + bitmapWidth - borderWidth / 2f, startY + 2 * radius - borderWidth / 2f), -90, 90); } else { borderPath.lineTo(startX + bitmapWidth - borderWidth / 2f, startY + borderWidth / 2f); } if (lowerRightRadius > 0f) { radius = anewCalculateRadius(lowerRightRadius); borderPath.arcTo(new RectF(startX + bitmapWidth - 2 * radius + borderWidth / 2f, startY + bitmapHeight - 2 * radius + borderWidth / 2f, startX + bitmapWidth - borderWidth / 2f, startY + bitmapHeight - borderWidth / 2f), 0, 90); } else { borderPath.lineTo(startX + bitmapWidth - borderWidth / 2f, startY + bitmapHeight - borderWidth / 2f); } if (lowerLeftRadius > 0f) { radius = anewCalculateRadius(lowerLeftRadius); borderPath.arcTo(new RectF(startX + borderWidth / 2f, startY + bitmapHeight - 2 * radius + borderWidth / 2f, startX + 2 * radius - borderWidth / 2f, startY + bitmapHeight - borderWidth / 2f), 90, 90); } else { borderPath.lineTo(startX + borderWidth / 2f, startY + bitmapHeight - borderWidth / 2f); } } else if (borderMode.equals(BorderMode.APPEND) || borderMode.equals(BorderMode.SUBTRACT)) { if (upperLeftRadius > 0f) { radius = anewCalculateRadius(upperLeftRadius); borderPath.moveTo(startX - borderWidth / 2f, startY + radius); borderPath.arcTo(new RectF(startX - borderWidth / 2f, startY - borderWidth / 2f, startX + radius * 2 + borderWidth / 2f, startY + radius * 2 + borderWidth / 2f), 180, 90); } else { borderPath.moveTo(startX - borderWidth / 2f, startY - borderWidth / 2f); } if (upperRightRadius > 0f) { radius = anewCalculateRadius(upperRightRadius); borderPath.arcTo(new RectF(startX + bitmapWidth - 2 * radius - borderWidth / 2f, startY - borderWidth / 2f, startX + bitmapWidth + borderWidth / 2f, startY + 2 * radius + borderWidth / 2f), -90, 90); } else { borderPath.lineTo(startX + bitmapWidth + borderWidth / 2f, startY - borderWidth / 2f); } if (lowerRightRadius > 0f) { radius = anewCalculateRadius(lowerRightRadius); borderPath.arcTo(new RectF(startX + bitmapWidth - 2 * radius - borderWidth / 2f, startY + bitmapHeight - 2 * radius - borderWidth / 2f, startX + bitmapWidth + borderWidth / 2f, startY + bitmapHeight + borderWidth / 2f), 0, 90); } else { borderPath.lineTo(startX + bitmapWidth + borderWidth / 2f, startY + bitmapHeight + borderWidth / 2f); } if (lowerLeftRadius > 0f) { radius = anewCalculateRadius(lowerLeftRadius); borderPath.arcTo(new RectF(startX - borderWidth / 2f, startY + bitmapHeight - 2 * radius - borderWidth / 2f, startX + 2 * radius + borderWidth / 2f, startY + bitmapHeight + borderWidth / 2f), 90, 90); } else { borderPath.lineTo(startX - borderWidth / 2f, startY + bitmapHeight + borderWidth / 2f); } } } borderPath.close(); canvas.drawPath(borderPath, paint); } /** * To revalue rounded corners * * @param radius radius * @return radius */ private float anewCalculateRadius(float radius) { float maxRadius = bitmapWidth < bitmapHeight ? bitmapWidth / 2f : bitmapHeight / 2f; if (radius > maxRadius) { radius = maxRadius; } return radius; } /** * Cut the top left corner * * @param canvas canvas * @param radius radius */ private void drawLiftUp(Canvas canvas, float radius) { if (null == path) { path = new Path(); } radius = anewCalculateRadius(radius); path.moveTo(startX - OFFSET, startY + radius); path.lineTo(startX, startY); path.lineTo(startX + radius, startY - OFFSET); path.arcTo(new RectF(startX, startY, startX + radius * 2, startY + radius * 2), -90, -90); path.close(); canvas.drawPath(path, paint); } /** * Cut the bottom left corner * * @param canvas canvas * @param radius radius */ private void drawLiftDown(Canvas canvas, float radius) { if (null == path) { path = new Path(); } radius = anewCalculateRadius(radius); path.moveTo(startX - OFFSET, startY + bitmapHeight - radius); path.lineTo(startX, startY + bitmapHeight); path.lineTo(startX + radius, startY + bitmapHeight + OFFSET); path.arcTo(new RectF(startX, startY + bitmapHeight - radius * 2, startX + radius * 2, startY + bitmapHeight), 90, 90); path.close(); canvas.drawPath(path, paint); } /** * Cut the bottom right hand corner * * @param canvas canvas * @param radius radius */ private void drawRightDown(Canvas canvas, float radius) { if (null == path) { path = new Path(); } radius = anewCalculateRadius(radius); path.moveTo(startX + bitmapWidth + OFFSET, startY + bitmapHeight - radius); path.lineTo(startX + bitmapWidth, startY + bitmapHeight); path.lineTo(startX + bitmapWidth - radius, startY + bitmapHeight + OFFSET); path.arcTo(new RectF(startX + bitmapWidth - radius * 2, startY + bitmapHeight - radius * 2, startX + bitmapWidth, startY + bitmapHeight), 90, -90); path.close(); canvas.drawPath(path, paint); } /** * Cut the top right corner * * @param canvas canvas * @param radius radius */ private void drawRightUp(Canvas canvas, float radius) { if (null == path) { path = new Path(); } radius = anewCalculateRadius(radius); path.moveTo(startX + bitmapWidth + OFFSET, startY + radius); path.lineTo(startX + bitmapWidth, startY); path.lineTo(startX + bitmapWidth - radius, startY - OFFSET); path.arcTo(new RectF(startX + bitmapWidth - radius * 2, startY, startX + bitmapWidth, startY + radius * 2), -90, 90); path.close(); canvas.drawPath(path, paint); } /** * Set the border color for the brush */ private void setPaintBorderColor() { paint.reset(); paint.setStyle(Paint.Style.STROKE); paint.setStrokeWidth(borderWidth); paint.setColor(borderColor); paint.setAntiAlias(true); } /** * Set a bitmap for the brush * * @param bitmap bitmap */ private Bitmap setPaintBitmapShader(Bitmap bitmap) { bitmapWidth *= mScale; bitmapHeight *= mScale; startX = (width - bitmapWidth) / 2f; startY = (height - bitmapHeight) / 2f; if (borderWidth > 0) { if (borderMode.equals(BorderMode.APPEND) || borderMode.equals(BorderMode.SUBTRACT)) { startX += borderWidth; startY += borderWidth; } } bitmapShader = new BitmapShader(bitmap, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP); if (null == matrix) { matrix = new Matrix(); } matrix.set(null); matrix.setScale(mScale, mScale); matrix.postTranslate(startX, startY); bitmapShader.setLocalMatrix(matrix); paint.setShader(bitmapShader); paint.setAntiAlias(true); return Bitmap.createScaledBitmap(bitmap, (int) bitmapWidth, (int) bitmapHeight, true); } /** * Whether or not the rectangle corners have been set * * @return */ private boolean isSettingRoundrect() { return upperLeftRadius == -1f && upperRightRadius == -1f && lowerRightRadius == -1f && lowerLeftRadius == -1f; } /** * Get "Bitmap" from "Drawable" * * @param drawable drawable * @return bitmap */ private Bitmap getBitmapFromDrawable(Drawable drawable) { if (null == drawable) { return null; } if (drawable instanceof BitmapDrawable) { return ((BitmapDrawable) drawable).getBitmap(); } try { Bitmap bitmap; if (drawable instanceof ColorDrawable) { //Returns a mutable bitmap with the specified width and height. bitmap = Bitmap.createBitmap(COLOR_BITMAP_SIZE, COLOR_BITMAP_SIZE, Bitmap.Config.ARGB_8888); } else { //Returns a mutable bitmap with the specified width and height. bitmap = Bitmap.createBitmap(drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight(), Bitmap.Config.ARGB_8888); } //Construct a canvas with the specified bitmap to draw into. Canvas canvas = new Canvas(bitmap); //Draw in its bounds (set via setBounds) respecting optional effects such as alpha (set via setAlpha) and color filter (set via setColorFilter). drawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight()); //Draw in its bounds (set via setBounds) respecting optional effects such as alpha (set via setAlpha) and color filter (set via setColorFilter). drawable.draw(canvas); return bitmap; } catch (Exception e) { if (DEBUG) { e.printStackTrace(); } return null; } } @Override public String toString() { return "RoundImageView{" + "imageMode=" + imageMode + ", borderMode=" + borderMode + ", borderWidth=" + borderWidth + ", borderColor=" + borderColor + ", upperLeftRadius=" + upperLeftRadius + ", upperRightRadius=" + upperRightRadius + ", lowerRightRadius=" + lowerRightRadius + ", lowerLeftRadius=" + lowerLeftRadius + '}'; } /** * The way the picture is displayed<br/> * {@link ImageMode.NONE} - 0 : Don't make any changes<br/> * {@link ImageMode.ROUNDRECT} - 1 : Shows a rounded rectangle<br/> * {@link ImageMode.CIRCLE} - 2 : It's going to be a circle<br/> * {@link ImageMode.OVAL} - 3 : Display as an ellipse */ public enum ImageMode { NONE("none", 0), ROUNDRECT("roundrect", 1), CIRCLE("circle", 2), OVAL("oval", 3); private String name; private int value; ImageMode(String name, int value) { this.name = name; this.value = value; } public String getName() { return name; } public int getValue() { return value; } public static ImageMode getImageMode(int value) { ImageMode[] imageModes = values(); for (ImageMode imageMode : imageModes) { if (imageMode.getValue() == value) { return imageMode; } } return NONE; } public static ImageMode getImageMode(String name) { ImageMode[] imageModes = values(); for (ImageMode imageMode : imageModes) { if (imageMode.getName().equals(name)) { return imageMode; } } return NONE; } } /** * Injection mode of boundary layer<br/> * {@link BorderMode.COVER} - 0 : Cover the boundary of the image<br/> * {@link BorderMode.APPEND} - 1 : Add width to the image<br/> * {@link BorderMode.SUBTRACT} - 2 : Subtract the width from the image */ public enum BorderMode { COVER("cover", 0), APPEND("append", 1), SUBTRACT("subtract", 2); private String name; private int value; BorderMode(String name, int value) { this.name = name; this.value = value; } public String getName() { return name; } public int getValue() { return value; } public static BorderMode getBorderMode(int value) { BorderMode[] borderModes = values(); for (BorderMode borderMode : borderModes) { if (borderMode.getValue() == value) { return borderMode; } } return COVER; } public static BorderMode getBorderMode(String name) { BorderMode[] borderModes = values(); for (BorderMode borderMode : borderModes) { if (borderMode.getName().equals(name)) { return borderMode; } } return COVER; } } public void setImageMode(ImageMode imageMode) { this.imageMode = imageMode; invalidate(); } public void setBorderMode(BorderMode borderMode) { this.borderMode = borderMode; invalidate(); } public void setBorderWidth(int borderWidth) { this.borderWidth = borderWidth; invalidate(); } public void setBorderColor(int borderColor) { this.borderColor = borderColor; invalidate(); } public void setUpperLeftRadius(float upperLeftRadius) { this.upperLeftRadius = upperLeftRadius; invalidate(); } public void setUpperRightRadius(float upperRightRadius) { this.upperRightRadius = upperRightRadius; invalidate(); } public void setLowerRightRadius(float lowerRightRadius) { this.lowerRightRadius = lowerRightRadius; invalidate(); } public void setLowerLeftRadius(float lowerLeftRadius) { this.lowerLeftRadius = lowerLeftRadius; invalidate(); } public void setRadius(float upperLeftRadius, float upperRightRadius, float lowerRightRadius, float lowerLeftRadius) { this.upperLeftRadius = upperLeftRadius; this.upperRightRadius = upperRightRadius; this.lowerRightRadius = lowerRightRadius; this.lowerLeftRadius = lowerLeftRadius; invalidate(); }}用法
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" android:layout_width="match_parent" android:layout_height="match_parent"> <LinearLayout android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical"> <com.taoyong.widget.RoundImageView android:layout_width="200dp" android:layout_height="400dp" android:src="@drawable/love" app:borderColor="@color/color64ff0000" app:borderMode="cover" app:borderWidth="0dp" app:imageMode="oval" /> <com.taoyong.widget.RoundImageView android:layout_width="200dp" android:layout_height="400dp" android:src="@drawable/love" app:borderColor="@color/color64ff0000" app:borderMode="cover" app:borderWidth="8dp" app:imageMode="oval" /> <com.taoyong.widget.RoundImageView android:layout_width="200dp" android:layout_height="400dp" android:src="@drawable/love" app:borderColor="@color/color64ff0000" app:borderMode="append" app:borderWidth="8dp" app:imageMode="oval" /> <com.taoyong.widget.RoundImageView android:layout_width="200dp" android:layout_height="400dp" android:src="@drawable/love" app:borderColor="@color/color64ff0000" app:borderMode="subtract" app:borderWidth="8dp" app:imageMode="oval" /> <com.taoyong.widget.RoundImageView android:layout_width="200dp" android:layout_height="400dp" android:src="@drawable/love" app:borderColor="@color/color64ff0000" app:borderMode="cover" app:borderWidth="0dp" app:imageMode="circle" /> <com.taoyong.widget.RoundImageView android:layout_width="200dp" android:layout_height="400dp" android:src="@drawable/love" app:borderColor="@color/color64ff0000" app:borderMode="cover" app:borderWidth="8dp" app:imageMode="circle" /> <com.taoyong.widget.RoundImageView android:layout_width="200dp" android:layout_height="400dp" android:src="@drawable/love" app:borderColor="@color/color64ff0000" app:borderMode="append" app:borderWidth="8dp" app:imageMode="circle" /> <com.taoyong.widget.RoundImageView android:layout_width="200dp" android:layout_height="400dp" android:src="@drawable/love" app:borderColor="@color/color64ff0000" app:borderMode="subtract" app:borderWidth="8dp" app:imageMode="circle" /> <com.taoyong.widget.RoundImageView android:layout_width="200dp" android:layout_height="400dp" android:src="@drawable/love" app:borderColor="@color/color64ff0000" app:borderMode="cover" app:borderWidth="8dp" app:imageMode="roundRect" app:lowerRightRadius="100000dp" app:upperLeftRadius="100000dp" /> <com.taoyong.widget.RoundImageView android:layout_width="200dp" android:layout_height="400dp" android:src="@drawable/love" app:borderColor="@color/color64ff0000" app:borderMode="cover" app:borderWidth="8dp" app:imageMode="roundRect" /> <com.taoyong.widget.RoundImageView android:layout_width="200dp" android:layout_height="400dp" android:src="@drawable/love" app:borderColor="@color/color64ff0000" app:borderMode="append" app:borderWidth="8dp" app:imageMode="roundRect" app:lowerLeftRadius="20dp" app:lowerRightRadius="12dp" app:upperLeftRadius="8dp" app:upperRightRadius="16dp" /> <com.taoyong.widget.RoundImageView android:layout_width="200dp" android:layout_height="400dp" android:src="@drawable/love" app:borderColor="@color/color64ff0000" app:borderMode="subtract" app:borderWidth="8dp" app:imageMode="roundRect" app:radius="35dp" /> <com.taoyong.widget.RoundImageView android:layout_width="200dp" android:layout_height="400dp" android:src="@drawable/love" app:borderColor="@color/color64ff0000" app:borderMode="cover" app:borderWidth="0dp" app:imageMode="none" /> <com.taoyong.widget.RoundImageView android:layout_width="200dp" android:layout_height="400dp" android:src="@drawable/love" app:borderColor="@color/color64ff0000" app:borderMode="cover" app:borderWidth="8dp" app:imageMode="none" /> <com.taoyong.widget.RoundImageView android:layout_width="200dp" android:layout_height="400dp" android:src="@drawable/love" app:borderColor="@color/color64ff0000" app:borderMode="append" app:borderWidth="8dp" app:imageMode="none" /> <com.taoyong.widget.RoundImageView android:layout_width="200dp" android:layout_height="400dp" android:src="@drawable/love" app:borderColor="@color/color64ff0000" app:borderMode="subtract" app:borderWidth="8dp" app:imageMode="none" /> </LinearLayout></ScrollView>demo地址
自定控件地址：https://github.com/fountaintao/CustomControl/blob/master/widget/src/main/java/com/taoyong/widget/RoundImageView.java
用法地址：https://github.com/fountaintao/CustomControl/blob/master/app/src/main/java/com/taoyong/customcontrol/RoundImageViewActivity.java
有问题，请反馈，望互利互助！
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