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xuhuixiang
321
Dmcslot/src/main/java/com/web/dmcslot/CircleImageView.java
Normal file
321
Dmcslot/src/main/java/com/web/dmcslot/CircleImageView.java
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package com.web.dmcslot;
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import android.annotation.SuppressLint;
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import android.content.Context;
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import android.content.res.TypedArray;
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import android.graphics.Bitmap;
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import android.graphics.Canvas;
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import android.graphics.Matrix;
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import android.graphics.Paint;
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import android.graphics.PorterDuff;
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import android.graphics.PorterDuffXfermode;
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import android.graphics.RectF;
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import android.graphics.drawable.BitmapDrawable;
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import android.graphics.drawable.Drawable;
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import android.util.AttributeSet;
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import android.view.MotionEvent;
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import androidx.appcompat.widget.AppCompatImageView;
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public class CircleImageView extends AppCompatImageView {
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// paint when user press
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private Paint pressPaint;
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private int width;
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private int height;
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// default bitmap config
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private static final Bitmap.Config BITMAP_CONFIG = Bitmap.Config.ARGB_8888;
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private static final int COLORDRAWABLE_DIMENSION = 1;
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// border color
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private int borderColor;
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// width of border
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private int borderWidth;
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// alpha when pressed
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private int pressAlpha;
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// color when pressed
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private int pressColor;
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// radius
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private int radius;
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// rectangle or round, 1 is circle, 2 is rectangle
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private int shapeType;
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public CircleImageView(Context context) {
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super(context);
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init(context, null);
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}
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public CircleImageView(Context context, AttributeSet attrs) {
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super(context, attrs);
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init(context, attrs);
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}
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public CircleImageView(Context context, AttributeSet attrs, int defStyleAttr) {
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super(context, attrs, defStyleAttr);
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init(context, attrs);
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}
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private void init(Context context, AttributeSet attrs) {
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//init the value
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borderWidth = 0;
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borderColor = 0xddffffff;
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pressAlpha = 0x42;
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pressColor = 0x42000000;
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radius = 16;
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shapeType = 0;
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// get attribute of EaseImageView
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if (attrs != null) {
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TypedArray array = context.obtainStyledAttributes(attrs, R.styleable.CircleImageView);
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borderColor = array.getColor(R.styleable.CircleImageView_ease_border_color, borderColor);
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borderWidth = array.getDimensionPixelOffset(R.styleable.CircleImageView_ease_border_width, borderWidth);
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pressAlpha = array.getInteger(R.styleable.CircleImageView_ease_press_alpha, pressAlpha);
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pressColor = array.getColor(R.styleable.CircleImageView_ease_press_color, pressColor);
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radius = array.getDimensionPixelOffset(R.styleable.CircleImageView_ease_radius, radius);
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shapeType = array.getInteger(R.styleable.CircleImageView_es_shape_type, shapeType);
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array.recycle();
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}
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// set paint when pressed
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pressPaint = new Paint();
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pressPaint.setAntiAlias(true);
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pressPaint.setStyle(Paint.Style.FILL);
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pressPaint.setColor(pressColor);
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pressPaint.setAlpha(0);
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pressPaint.setFlags(Paint.ANTI_ALIAS_FLAG);
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setDrawingCacheEnabled(true);
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setWillNotDraw(false);
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}
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@Override
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protected void onDraw(Canvas canvas) {
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if (shapeType == 0) {
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super.onDraw(canvas);
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return;
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}
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Drawable drawable = getDrawable();
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if (drawable == null) {
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return;
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}
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// the width and height is in xml file
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if (getWidth() == 0 || getHeight() == 0) {
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return;
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}
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Bitmap bitmap = getBitmapFromDrawable(drawable);
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drawDrawable(canvas, bitmap);
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if (isClickable()) {
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drawPress(canvas);
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}
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drawBorder(canvas);
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}
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/**
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* draw Rounded Rectangle
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*
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* @param canvas
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* @param bitmap
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*/
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@SuppressLint("WrongConstant")
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private void drawDrawable(Canvas canvas, Bitmap bitmap) {
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Paint paint = new Paint();
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paint.setColor(0xffffffff);
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paint.setAntiAlias(true); //smooths out the edges of what is being drawn
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PorterDuffXfermode xfermode = new PorterDuffXfermode(PorterDuff.Mode.SRC_IN);
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// set flags
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int saveFlags = Canvas.ALL_SAVE_FLAG
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;
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canvas.saveLayer(0, 0, width, height, null, saveFlags);
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if (shapeType == 1) {
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canvas.drawCircle(width / 2, height / 2, width / 2 - 1, paint);
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} else if (shapeType == 2) {
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RectF rectf = new RectF(1, 1, getWidth() - 1, getHeight() - 1);
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canvas.drawRoundRect(rectf, radius + 1, radius + 1, paint);
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}
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paint.setXfermode(xfermode);
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float scaleWidth = ((float) getWidth()) / bitmap.getWidth();
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float scaleHeight = ((float) getHeight()) / bitmap.getHeight();
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Matrix matrix = new Matrix();
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matrix.postScale(scaleWidth, scaleHeight);
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//bitmap scale
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bitmap = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), matrix, true);
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canvas.drawBitmap(bitmap, 0, 0, paint);
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canvas.restore();
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}
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/**
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* draw the effect when pressed
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*
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* @param canvas
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*/
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private void drawPress(Canvas canvas) {
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// check is rectangle or circle
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if (shapeType == 1) {
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canvas.drawCircle(width / 2, height / 2, width / 2 - 1, pressPaint);
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} else if (shapeType == 2) {
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RectF rectF = new RectF(1, 1, width - 1, height - 1);
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canvas.drawRoundRect(rectF, radius + 1, radius + 1, pressPaint);
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}
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}
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/**
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* draw customized border
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*
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* @param canvas
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*/
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private void drawBorder(Canvas canvas) {
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if (borderWidth > 0) {
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Paint paint = new Paint();
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paint.setStrokeWidth(borderWidth);
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paint.setStyle(Paint.Style.STROKE);
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paint.setColor(borderColor);
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paint.setAntiAlias(true);
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// // check is rectangle or circle
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if (shapeType == 1) {
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canvas.drawCircle(width / 2, height / 2, (width - borderWidth) / 2, paint);
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} else if (shapeType == 2) {
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RectF rectf = new RectF(borderWidth / 2, borderWidth / 2, getWidth() - borderWidth / 2,
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getHeight() - borderWidth / 2);
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canvas.drawRoundRect(rectf, radius, radius, paint);
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}
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}
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}
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/**
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* monitor the size change
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*
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* @param w
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* @param h
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* @param oldw
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* @param oldh
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*/
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@Override
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protected void onSizeChanged(int w, int h, int oldw, int oldh) {
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super.onSizeChanged(w, h, oldw, oldh);
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width = w;
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height = h;
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}
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/**
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* monitor if touched
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*
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* @param event
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* @return
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*/
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@Override
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public boolean onTouchEvent(MotionEvent event) {
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switch (event.getAction()) {
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case MotionEvent.ACTION_DOWN:
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pressPaint.setAlpha(pressAlpha);
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invalidate();
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break;
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case MotionEvent.ACTION_UP:
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pressPaint.setAlpha(0);
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invalidate();
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break;
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case MotionEvent.ACTION_MOVE:
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break;
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default:
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pressPaint.setAlpha(0);
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invalidate();
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break;
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}
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return super.onTouchEvent(event);
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}
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/**
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* @param drawable
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* @return
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*/
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private Bitmap getBitmapFromDrawable(Drawable drawable) {
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if (drawable == null) {
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return null;
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}
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if (drawable instanceof BitmapDrawable) {
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return ((BitmapDrawable) drawable).getBitmap();
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}
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Bitmap bitmap;
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int width = Math.max(drawable.getIntrinsicWidth(), 2);
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int height = Math.max(drawable.getIntrinsicHeight(), 2);
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try {
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bitmap = Bitmap.createBitmap(width, height, BITMAP_CONFIG);
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Canvas canvas = new Canvas(bitmap);
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drawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
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drawable.draw(canvas);
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} catch (IllegalArgumentException e) {
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e.printStackTrace();
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bitmap = null;
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}
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return bitmap;
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}
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/**
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* set border color
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*
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* @param borderColor
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*/
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public void setBorderColor(int borderColor) {
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this.borderColor = borderColor;
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invalidate();
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}
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/**
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* set border width
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*
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* @param borderWidth
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*/
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public void setBorderWidth(int borderWidth) {
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this.borderWidth = borderWidth;
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}
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/**
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* set alpha when pressed
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*
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* @param pressAlpha
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*/
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public void setPressAlpha(int pressAlpha) {
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this.pressAlpha = pressAlpha;
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}
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/**
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* set color when pressed
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*
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* @param pressColor
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*/
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public void setPressColor(int pressColor) {
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this.pressColor = pressColor;
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}
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/**
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* set radius
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*
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* @param radius
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*/
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public void setRadius(int radius) {
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this.radius = radius;
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invalidate();
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}
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/**
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* set shape,1 is circle, 2 is rectangle
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*
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* @param shapeType
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*/
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public void setShapeType(int shapeType) {
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this.shapeType = shapeType;
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invalidate();
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}
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}
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