自定义带 vip 标识的 圆形头像(圆形ImageView)
【摘要】
import java.lang.ref.WeakReference;
import android.content.Context;import android.content.res.TypedArray;import android.graphics.Bitmap;import android.graphics.C...
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import java.lang.ref.WeakReference;
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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.Color;
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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.Xfermode;
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import android.graphics.drawable.Drawable;
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import android.util.AttributeSet;
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import android.util.TypedValue;
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import android.widget.ImageView;
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import com.ccvideo.R;
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public class RoundImageView extends ImageView {
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private Paint mPaint;
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private Xfermode mXfermode = new PorterDuffXfermode(PorterDuff.Mode.DST_IN);
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private WeakReference<Bitmap> mWeakBitmap;
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private WeakReference<Bitmap> mMaskWeakBitmap;
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private WeakReference<Canvas> mWeakCanvas;
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public static final int TYPE_CIRCLE = 0;
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public static final int TYPE_ROUND = 1;
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private static final int BORDER_RADIUS_DEFAULT = 10;
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private static final int BORDER_WIDTH_DEFAULT = 0;
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private static final int BORDER_COLOR_DEFAULT = R.color.black_alpha_percent_10;
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private int mShapeType;
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private int mBorderRadius;
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private int mBorderWidth;
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private int mBorderColor;
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private int mOverLayColor;
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public RoundImageView(Context context, int BorderWidth, int BorderColor) {
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this(context, null);
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this.mBorderWidth = BorderWidth;
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this.mBorderColor = BorderColor;
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mPaint = new Paint();
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mPaint.setAntiAlias(true);
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}
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public RoundImageView(Context context, AttributeSet attrs) {
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super(context, attrs);
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mPaint = new Paint();
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mPaint.setAntiAlias(true);
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TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.RoundImageView);
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mBorderRadius = a.getDimensionPixelSize(R.styleable.RoundImageView_border_radius,
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(int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,
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BORDER_RADIUS_DEFAULT, getResources().getDisplayMetrics()));// Default 10dp
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mShapeType = a.getInt(R.styleable.RoundImageView_type, TYPE_CIRCLE);
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mBorderWidth = a.getDimensionPixelSize(R.styleable.RoundImageView_border_width,
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(int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,
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BORDER_WIDTH_DEFAULT, getResources().getDisplayMetrics()));
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mBorderColor = a.getColor(R.styleable.RoundImageView_border_color, BORDER_COLOR_DEFAULT);
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mOverLayColor = a.getColor(R.styleable.RoundImageView_overlay, android.R.color.transparent);
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a.recycle();
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}
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@Override
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protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
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super.onMeasure(widthMeasureSpec, heightMeasureSpec);
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if (mShapeType == TYPE_CIRCLE) {
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int width = Math.min(getMeasuredWidth(), getMeasuredHeight());
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// setMeasuredDimension(width, width);
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}
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}
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@Override
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public void invalidate() {
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mWeakBitmap = null;
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mMaskWeakBitmap = null;
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mWeakCanvas = null;
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super.invalidate();
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}
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@Override
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protected void onDraw(Canvas canvas) {
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Drawable drawable = getDrawable();
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if (drawable == null || getWidth() == 0 || getHeight() == 0) {
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return;
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}
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Bitmap bitmap = mWeakBitmap == null ? null : mWeakBitmap.get();
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if (bitmap == null || bitmap.isRecycled()) {
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bitmap = Bitmap.createBitmap(getWidth(), getHeight(), Bitmap.Config.ARGB_8888);
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}
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Canvas drawCanvas = mWeakCanvas == null ? null : mWeakCanvas.get();
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if (drawCanvas == null) {
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drawCanvas = new Canvas(bitmap);
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}
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float scale = 1.0f;
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int drawableWidth = drawable.getIntrinsicWidth();
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int drawableHeight = drawable.getIntrinsicHeight();
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if (mShapeType == TYPE_ROUND) {
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scale = Math.max(getWidth() * 1.0f / drawableWidth, getHeight() * 1.0f / drawableHeight);
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} else {
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scale = getWidth() * 1.0f / Math.min(drawableWidth, drawableHeight);
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}
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drawable.setBounds(0, 0, (int) (scale * drawableWidth), (int) (scale * drawableHeight));
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drawable.draw(drawCanvas);
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mPaint.reset();
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mPaint.setColor(mOverLayColor);
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drawCanvas.drawColor(mOverLayColor);
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mPaint.reset();
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mPaint.setFilterBitmap(false);
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mPaint.setXfermode(mXfermode);
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Bitmap maskBitmap = mMaskWeakBitmap == null ? null : mMaskWeakBitmap.get();
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if (maskBitmap == null || maskBitmap.isRecycled()) {
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maskBitmap = getBitmap();
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mMaskWeakBitmap = new WeakReference<Bitmap>(maskBitmap);
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}
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drawCanvas.drawBitmap(maskBitmap, 0, 0, mPaint);
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mPaint.setXfermode(null);
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if (mBorderWidth > 0) {
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drawCircleBorder(drawCanvas);
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}
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canvas.drawBitmap(bitmap, 0, 0, null);
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}
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private Bitmap getBitmap() {
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Bitmap bitmap = Bitmap.createBitmap(getWidth(), getHeight(), Bitmap.Config.ARGB_8888);
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Canvas canvas = new Canvas(bitmap);
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Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
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paint.setColor(Color.BLACK);
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if (mShapeType == TYPE_ROUND) {
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canvas.drawRoundRect(new RectF(0, 0, getWidth(), getHeight()),
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mBorderRadius, mBorderRadius, paint);
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} else {
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canvas.drawCircle(getWidth() / 2, getWidth() / 2, getWidth() / 2 - mBorderWidth, paint);
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}
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return bitmap;
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}
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private void drawCircleBorder(Canvas canvas) {
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Paint paint = new Paint();
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paint.setAntiAlias(true);
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paint.setFilterBitmap(true);
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paint.setDither(true);
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paint.setColor(mBorderColor);
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paint.setStyle(Paint.Style.STROKE);
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paint.setStrokeWidth(mBorderWidth);
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if (mShapeType == TYPE_ROUND) {
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canvas.drawRoundRect(new RectF(0, 0, getWidth(), getHeight()),
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mBorderRadius, mBorderRadius, paint);
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} else {
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canvas.drawCircle(getWidth() / 2, getWidth() / 2, (getWidth() - mBorderWidth) / 2, paint);
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}
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}
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public void setBorderWidth(int borderWidth) {
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this.mBorderWidth = mBorderWidth;
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}
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public void setBorderColor(int borderColor) {
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this.mBorderColor = mBorderColor;
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}
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}
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package com.yizhibo.video.view;
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import java.lang.ref.WeakReference;
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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.BitmapFactory;
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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.PorterDuff;
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import android.graphics.PorterDuffXfermode;
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import android.graphics.Xfermode;
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import android.graphics.drawable.Drawable;
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import android.util.AttributeSet;
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import android.util.TypedValue;
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import android.widget.ImageView;
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import com.ccvideo.R;
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public class MyUserPhoto extends ImageView {
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private static final int BORDER_SMALL_WIDTH_DEFAULT = 10;
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private static final int BORDER_SMALL_HEIGHT_DEFAULT = 10;
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private static final int IS_VIP = 1;
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private static final int BORDER_WIDTH_DEFAULT = 0;
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private static final int BORDER_COLOR_DEFAULT = R.color.black_alpha_percent_10;
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private int mSmallImageWidth;
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private int mSmallImageHeight;
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private int mIsVip;
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private int mBorderWidth;
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private int mBorderColor;
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private int mSmallIconResId;
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private Paint mPaint;
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private Xfermode mXfermode = new PorterDuffXfermode(PorterDuff.Mode.DST_IN);
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private WeakReference<Bitmap> mWeakBitmap;
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private WeakReference<Bitmap> mMaskWeakBitmap;
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private WeakReference<Canvas> mWeakCanvas;
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public MyUserPhoto(Context context) {
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super(context);
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}
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public MyUserPhoto(Context context, AttributeSet attrs) {
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super(context, attrs);
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mPaint = new Paint();
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mPaint.setAntiAlias(true);
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TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.MyUserPhoto);
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mSmallImageHeight = a.getDimensionPixelSize(R.styleable.MyUserPhoto_small_height,
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BORDER_SMALL_HEIGHT_DEFAULT);
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mSmallImageWidth = a.getDimensionPixelSize(R.styleable.MyUserPhoto_small_width,
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BORDER_SMALL_WIDTH_DEFAULT);
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mIsVip = a.getInt(R.styleable.MyUserPhoto_is_vip, 0);
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mSmallIconResId = a.getResourceId(R.styleable.MyUserPhoto_small_icon,
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R.drawable.floating_screen_v);
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mBorderWidth = a.getDimensionPixelSize(R.styleable.MyUserPhoto_border_width,
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(int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,
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BORDER_WIDTH_DEFAULT, getResources().getDisplayMetrics()));
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mBorderColor = a.getColor(R.styleable.MyUserPhoto_border_color, BORDER_COLOR_DEFAULT);
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setWillNotDraw(false);
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a.recycle();
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}
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@Override
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public void invalidate() {
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mWeakBitmap = null;
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mMaskWeakBitmap = null;
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mWeakCanvas = null;
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super.invalidate();
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}
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@Override
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protected void onDraw(Canvas canvas) {
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Drawable drawable = getDrawable();
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if (drawable == null || getWidth() == 0 || getHeight() == 0) {
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return;
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}
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Bitmap bitmap = mWeakBitmap == null ? null : mWeakBitmap.get();
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if (bitmap == null || bitmap.isRecycled()) {
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bitmap = Bitmap.createBitmap(getWidth(), getHeight(), Bitmap.Config.ARGB_8888);
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mWeakBitmap = new WeakReference<Bitmap>(bitmap);
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}
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Canvas drawCanvas = mWeakCanvas == null ? null : mWeakCanvas.get();
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if (drawCanvas == null) {
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drawCanvas = new Canvas(bitmap);
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mWeakCanvas = new WeakReference<Canvas>(drawCanvas);
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}
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float scale = 1.0f;
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int drawableWidth = drawable.getIntrinsicWidth();
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int drawableHeight = drawable.getIntrinsicHeight();
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scale = getWidth() * 1.0f / Math.min(drawableWidth, drawableHeight);
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drawable.setBounds(0, 0, (int) (scale * drawableWidth), (int) (scale * drawableHeight));
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drawable.draw(drawCanvas);
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mPaint.reset();
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mPaint.setFilterBitmap(false);
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mPaint.setXfermode(mXfermode);
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Bitmap maskBitmap = mMaskWeakBitmap == null ? null : mMaskWeakBitmap.get();
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if (maskBitmap == null || maskBitmap.isRecycled()) {
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maskBitmap = getMaskBitmap();
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mMaskWeakBitmap = new WeakReference<Bitmap>(maskBitmap);
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}
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drawCanvas.drawBitmap(maskBitmap, 0, 0, mPaint);
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mPaint.setXfermode(null);
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if (mBorderWidth > 0) {
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drawCircleBorder(drawCanvas);
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}
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if (mIsVip == IS_VIP && (mSmallImageWidth > 0 || mSmallImageHeight > 0)) {
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drawSmallIcon(drawCanvas);
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}
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canvas.drawBitmap(bitmap, 0, 0, null);
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}
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private Bitmap getMaskBitmap() {
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Bitmap bitmap = Bitmap.createBitmap(getWidth(), getHeight(), Bitmap.Config.ARGB_8888);
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Canvas canvas = new Canvas(bitmap);
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Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
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paint.setColor(Color.BLACK);
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canvas.drawCircle(getWidth() / 2, getWidth() / 2, getWidth() / 2 - mBorderWidth, paint);
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return bitmap;
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}
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private void drawCircleBorder(Canvas canvas) {
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Paint paint = new Paint();
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paint.setAntiAlias(true);
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paint.setFilterBitmap(true);
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paint.setDither(true);
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paint.setColor(mBorderColor);
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paint.setStyle(Paint.Style.STROKE);
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paint.setStrokeWidth(mBorderWidth);
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canvas.drawCircle(getWidth() / 2, getWidth() / 2, (getWidth() - mBorderWidth) / 2, paint);
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}
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private void drawSmallIcon(Canvas canvas) {
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int smallIconSize = mSmallImageWidth;
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Bitmap smallIconBitmap = BitmapFactory.decodeResource(getResources(), mSmallIconResId);
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smallIconBitmap = scaleImage(smallIconBitmap, smallIconSize, smallIconSize);
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float marginTop = getWidth() / 2.0f + (float)Math.sqrt(2) * (getHeight() / 2.0f) / 2.0f
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- smallIconSize / 2.0f;
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float marginLeft = marginTop;
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canvas.drawBitmap(smallIconBitmap, marginLeft, marginTop, null);
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smallIconBitmap.recycle();
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}
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private Bitmap scaleImage(Bitmap bitmap, float newWidth, float newHeight) {
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float width = bitmap.getWidth();
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float height = bitmap.getHeight();
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Matrix matrix = new Matrix();
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float scaleWidth = newWidth / width;
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float scaleHeight = newHeight / height;
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matrix.postScale(scaleWidth, scaleHeight);
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return Bitmap.createBitmap(bitmap, 0, 0, (int) width, (int) height, matrix, true);
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}
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public ImageView getRoundImageView() {
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return this;
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}
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public void setIsVip(int isVip) {
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if (mIsVip != isVip) {
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mIsVip = isVip;
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invalidate();
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}
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}
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}
文章来源: wukong.blog.csdn.net，作者：再见孙悟空_，版权归原作者所有，如需转载，请联系作者。
原文链接：wukong.blog.csdn.net/article/details/49890705
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