package com.runt.open.mvvm.widgets;
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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.BitmapShader;
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import android.graphics.Canvas;
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import android.graphics.Color;
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import android.graphics.Matrix;
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import android.graphics.Paint;
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import android.graphics.RectF;
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import android.graphics.Shader;
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import android.graphics.drawable.BitmapDrawable;
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import android.graphics.drawable.ColorDrawable;
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import android.graphics.drawable.Drawable;
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import android.util.AttributeSet;
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import android.widget.ImageView;
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import com.runt.open.mvvm.R;
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/**
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* My father is Object, ites purpose of 圆形图片带阴影
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*
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* @purpose Created by Runt (qingingrunt2010@qq.com) on 2020-2-23.
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*/
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@SuppressLint("AppCompatCustomView")
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public class CircleImageView extends ImageView {
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private static final ScaleType SCALE_TYPE = ScaleType.CENTER_CROP;
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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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private static final int DEFAULT_BORDER_WIDTH = 0;
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private static final int DEFAULT_BORDER_COLOR = Color.BLACK;
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private final RectF mDrawableRect = new RectF();
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private final RectF mBorderRect = new RectF();
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private final Matrix mShaderMatrix = new Matrix();
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private final Paint mBitmapPaint = new Paint();
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private final Paint mBorderPaint = new Paint();
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private int mBorderColor = DEFAULT_BORDER_COLOR;
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private int mBorderWidth = DEFAULT_BORDER_WIDTH;
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private Bitmap mBitmap;
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private BitmapShader mBitmapShader;
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private int mBitmapWidth;
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private int mBitmapHeight;
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private float mDrawableRadius;
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private float mBorderRadius;
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private boolean mReady;
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private boolean mSetupPending;
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public CircleImageView(Context context) {
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super(context);
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}
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public CircleImageView(Context context, AttributeSet attrs) {
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this(context, attrs, 0);
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}
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public CircleImageView(Context context, AttributeSet attrs, int defStyle) {
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super(context, attrs, defStyle);
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super.setScaleType(SCALE_TYPE);
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TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.CircleImageView, defStyle, 0);
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mBorderWidth = a.getDimensionPixelSize(R.styleable.CircleImageView_border_width, DEFAULT_BORDER_WIDTH);
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mBorderColor = a.getColor(R.styleable.CircleImageView_border_color, DEFAULT_BORDER_COLOR);
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a.recycle();
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mReady = true;
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if (mSetupPending) {
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setup();
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mSetupPending = false;
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}
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}
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@Override
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public ScaleType getScaleType() {
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return SCALE_TYPE;
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}
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@Override
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public void setScaleType(ScaleType scaleType) {
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if (scaleType != SCALE_TYPE) {
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throw new IllegalArgumentException(String.format("ScaleType %s not supported.", scaleType));
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}
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}
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@Override
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protected void onDraw(Canvas canvas) {
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if (getDrawable() == null) {
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return;
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}
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canvas.drawCircle(getWidth() / 2, getHeight() / 2, mDrawableRadius, mBitmapPaint);
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if(getBorderWidth()>0) {
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canvas.drawCircle(getWidth() / 2, getHeight() / 2, mBorderRadius, mBorderPaint);
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}
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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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setup();
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}
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public int getBorderColor() {
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return mBorderColor;
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}
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public void setBorderColor(int borderColor) {
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if (borderColor == mBorderColor) {
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return;
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}
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mBorderColor = borderColor;
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mBorderPaint.setColor(mBorderColor);
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invalidate();
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}
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public int getBorderWidth() {
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return mBorderWidth;
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}
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public void setBorderWidth(int borderWidth) {
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if (borderWidth == mBorderWidth) {
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return;
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}
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mBorderWidth = borderWidth;
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setup();
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}
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@Override
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public void setImageBitmap(Bitmap bm) {
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super.setImageBitmap(bm);
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mBitmap = bm;
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setup();
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}
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@Override
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public void setImageDrawable(Drawable drawable) {
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super.setImageDrawable(drawable);
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mBitmap = getBitmapFromDrawable(drawable);
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setup();
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}
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@Override
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public void setImageResource(int resId) {
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super.setImageResource(resId);
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mBitmap = getBitmapFromDrawable(getDrawable());
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setup();
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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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try {
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Bitmap bitmap;
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if (drawable instanceof ColorDrawable) {
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bitmap = Bitmap.createBitmap(COLORDRAWABLE_DIMENSION, COLORDRAWABLE_DIMENSION, BITMAP_CONFIG);
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} else {
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bitmap = Bitmap.createBitmap(drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight(), BITMAP_CONFIG);
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}
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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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return bitmap;
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} catch (OutOfMemoryError e) {
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return null;
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}
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}
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private void setup() {
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if (!mReady) {
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mSetupPending = true;
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return;
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}
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if (mBitmap == null) {
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return;
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}
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mBitmapShader = new BitmapShader(mBitmap, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP);
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mBitmapPaint.setAntiAlias(true);
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mBitmapPaint.setShader(mBitmapShader);
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mBorderPaint.setStyle(Paint.Style.STROKE);
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mBorderPaint.setAntiAlias(true);
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mBorderPaint.setColor(mBorderColor);
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mBorderPaint.setStrokeWidth(mBorderWidth);
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mBitmapHeight = mBitmap.getHeight();
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mBitmapWidth = mBitmap.getWidth();
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mBorderRect.set(0, 0, getWidth(), getHeight());
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mBorderRadius = Math.min((mBorderRect.height() - mBorderWidth) / 2, (mBorderRect.width() - mBorderWidth) / 2);
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mDrawableRect.set(mBorderWidth, mBorderWidth, mBorderRect.width() - mBorderWidth, mBorderRect.height() - mBorderWidth);
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mDrawableRadius = Math.min(mDrawableRect.height() / 2, mDrawableRect.width() / 2);
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updateShaderMatrix();
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invalidate();
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}
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private void updateShaderMatrix() {
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float scale;
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float dx = 0;
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float dy = 0;
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mShaderMatrix.set(null);
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if (mBitmapWidth * mDrawableRect.height() > mDrawableRect.width() * mBitmapHeight) {
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scale = mDrawableRect.height() / (float) mBitmapHeight;
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dx = (mDrawableRect.width() - mBitmapWidth * scale) * 0.5f;
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} else {
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scale = mDrawableRect.width() / (float) mBitmapWidth;
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dy = (mDrawableRect.height() - mBitmapHeight * scale) * 0.5f;
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}
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mShaderMatrix.setScale(scale, scale);
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mShaderMatrix.postTranslate((int) (dx + 0.5f) + mBorderWidth, (int) (dy + 0.5f) + mBorderWidth);
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mBitmapShader.setLocalMatrix(mShaderMatrix);
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}
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}
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