Android Studio实现带边框的圆形头像

概述本文实例为大家分享了AndroidStudio实现带边框的圆形头像的具体代码，供大家参考，具体内容如下

本文实例为大家分享了AndroID Studio实现带边框的圆形头像的具体代码，供大家参考，具体内容如下

效果显示：

(没有边框的)

 

(有边框的)

1、创建自定义ImagVIEw控件

(1)、没有边框的

package chenglong.activitytest.pengintohospital.utils;import androID.content.Context;import androID.graphics.Bitmap;import androID.graphics.BitmapShader;import androID.graphics.Canvas;import androID.graphics.color;import androID.graphics.Matrix;import androID.graphics.Paint;import androID.graphics.Rect;import androID.graphics.Shader;import androID.graphics.drawable.BitmapDrawable;import androID.graphics.drawable.colorDrawable;import androID.graphics.drawable.Drawable;import androID.util.AttributeSet;import androID.Widget.ImageVIEw;/** * * 圆形图片 * Created by liCHENGLONG on 2017-10-09. */public class mine_ImageVIEwPlus extends ImageVIEw{ private Paint mPaintBitmap = new Paint(Paint.ANTI_AliAS_FLAG); private Paint mPaintborder = new Paint(Paint.ANTI_AliAS_FLAG); private Bitmap mRawBitmap; private BitmapShader mShader; private Matrix mMatrix = new Matrix(); private float mborderWIDth = dip2px(15); private int mbordercolor = 0x80bebebe; public mine_ImageVIEwPlus(Context context,AttributeSet attrs) { super(context,attrs); } @OverrIDe protected voID onDraw(Canvas canvas) { Bitmap rawBitmap = getBitmap(getDrawable()); if (rawBitmap != null){  int vIEwWIDth = getWIDth();  int vIEwHeight = getHeight();  int vIEwMinSize = Math.min(vIEwWIDth,vIEwHeight);  float dstWIDth = vIEwMinSize;  float dstHeight = vIEwMinSize;  if (mShader == null || !rawBitmap.equals(mRawBitmap)){  mRawBitmap = rawBitmap;  mShader = new BitmapShader(mRawBitmap,Shader.TileMode.CLAMP,Shader.TileMode.CLAMP);  }  if (mShader != null){  mMatrix.setScale((dstWIDth - mborderWIDth * 2) / rawBitmap.getWIDth(),(dstHeight - mborderWIDth * 2) / rawBitmap.getHeight());  mShader.setLocalMatrix(mMatrix);  }  mPaintBitmap.setShader(mShader);  mPaintborder.setStyle(Paint.Style.stroke);  mPaintborder.setstrokeWIDth(mborderWIDth);  mPaintborder.setcolor(mbordercolor);  float radius = vIEwMinSize / 2.0f;  canvas.drawCircle(radius,radius,radius - mborderWIDth / 2.0f,mPaintborder);  canvas.translate(mborderWIDth,mborderWIDth);  canvas.drawCircle(radius - mborderWIDth,radius - mborderWIDth,mPaintBitmap); } else {  super.onDraw(canvas); } } private Bitmap getBitmap(Drawable drawable){ if (drawable instanceof BitmapDrawable){  return ((BitmapDrawable)drawable).getBitmap(); } else if (drawable instanceof colorDrawable){  Rect rect = drawable.getBounds();  int wIDth = rect.right - rect.left;  int height = rect.bottom - rect.top;  int color = ((colorDrawable)drawable).getcolor();  Bitmap bitmap = Bitmap.createBitmap(wIDth,height,Bitmap.Config.ARGB_8888);  Canvas canvas = new Canvas(bitmap);  canvas.drawARGB(color.Alpha(color),color.red(color),color.green(color),color.blue(color));  return bitmap; } else {  return null; } } private int dip2px(int dipVal) { float scale = getResources().getdisplayMetrics().density; return (int)(dipVal * scale + 0.5f); }}

(2)、有边框的

package chenglong.activitytest.pengintohospital.utils;import androID.content.Context;import androID.graphics.Bitmap;import androID.graphics.BitmapShader;import androID.graphics.Canvas;import androID.graphics.color;import androID.graphics.Matrix;import androID.graphics.Paint;import androID.graphics.Rect;import androID.graphics.Shader;import androID.graphics.drawable.BitmapDrawable;import androID.graphics.drawable.colorDrawable;import androID.graphics.drawable.Drawable;import androID.util.AttributeSet;import androID.Widget.ImageVIEw;/** * * 带边框的圆形图片 * Created by liCHENGLONG on 2017-10-09. */public class ImageVIEwPlus extends ImageVIEw{ private Paint mPaintBitmap = new Paint(Paint.ANTI_AliAS_FLAG); private Paint mPaintborder = new Paint(Paint.ANTI_AliAS_FLAG);// private Bitmap mRawBitmap; private BitmapShader mShader; private Matrix mMatrix = new Matrix(); private float mborderWIDth = dip2px(15); private int mbordercolor = 0xFF0080FF;//外边框的颜色 public ImageVIEwPlus(Context context,(dstHeight - mborderWIDth * 2) / rawBitmap.getHeight());  mShader.setLocalMatrix(mMatrix);  }  mPaintBitmap.setShader(mShader);  mPaintborder.setStyle(Paint.Style.stroke);  mPaintborder.setstrokeWIDth(mborderWIDth / 5.0f);//外边框的大小  mPaintborder.setcolor(mbordercolor);//添加外边框  float radius = vIEwMinSize / 2.0f;  canvas.drawCircle(radius,radius - mborderWIDth / 6.0f,color.blue(color));  return bitmap; } else {  return null; } } private int dip2px(int dipVal) { float scale = getResources().getdisplayMetrics().density; return (int)(dipVal * scale + 0.5f); }}

2、创建页面xml代码

<chenglong.activitytest.pengintohospital.utils.ImageVIEwPlus androID:ID="@+ID/mine_iv_headportrait" androID:layout_wIDth="150dp" androID:layout_height="150dp" androID:src="@mipmap/hospital" />

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