android原生自定义头像View

android原生自定义两种头像方式

第一种、不带圆形外圈头像 

package com.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
     *
     */
 
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, 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);
     }
}

第二种、带圆形外圈头像  

package com.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
     * 
     */
 
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, 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 / 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, radius - mBorderWidth / 6.0f, mPaintBorder);
     canvas.translate(mBorderWidth, mBorderWidth);
     canvas.drawCircle(radius - mBorderWidth, radius - mBorderWidth, radius, 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);
     }
}

第三种、

public class HaedCircleImageView extends ImageView{
    public HaedCircleImageView(Context context) {
        super(context);
        // TODO Auto-generated constructor stub
    }

    public HaedCircleImageView(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public HaedCircleImageView(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }

    @Override
    protected void onDraw(Canvas canvas) {

        Drawable drawable = getDrawable();

        if (drawable == null) {
            return;
        }

        if (getWidth() == 0 || getHeight() == 0) {
            return;
        }
        Bitmap b =  ((BitmapDrawable)drawable).getBitmap() ;
        Bitmap bitmap = b.copy(Bitmap.Config.ARGB_8888, true);

        int w = getWidth(), h = getHeight();

        Bitmap roundBitmap =  getCroppedBitmap(bitmap, w);
        canvas.drawBitmap(roundBitmap, 0,0, null);

    }

    public static Bitmap getCroppedBitmap(Bitmap bmp, int radius) {
        Bitmap sbmp;
        if(bmp.getWidth() != radius || bmp.getHeight() != radius)
            sbmp = Bitmap.createScaledBitmap(bmp, radius, radius, false);
        else
            sbmp = bmp;
        Bitmap output = Bitmap.createBitmap(sbmp.getWidth(),
                sbmp.getHeight(), Bitmap.Config.ARGB_8888);
        Canvas canvas = new Canvas(output);

        final int color = 0xffa19774;
        final Paint paint = new Paint();
        final Rect rect = new Rect(0, 0, sbmp.getWidth(), sbmp.getHeight());

        paint.setAntiAlias(true);
        paint.setFilterBitmap(true);
        paint.setDither(true);
        canvas.drawARGB(0, 0, 0, 0);
        paint.setColor(Color.parseColor("#BAB399"));
        canvas.drawCircle(sbmp.getWidth() / 2+0.7f, sbmp.getHeight() / 2+0.7f,
                sbmp.getWidth() / 2+0.1f, paint);
        paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
        canvas.drawBitmap(sbmp, rect, rect, paint);

        return output;
    }
}

在Xml中使用 

<com.activitytest.pengintohospital.utils.ImageViewPlus
     android:id="@+id/mine_iv_headportrait"
     android:layout_width="100dp"
     android:layout_height="100dp"
     android:src="@mipmap/hospital" />

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