关于 android ImageView 圆角处理 圆图
2016-01-03 11:10
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关于 android ImageView 圆角处理 圆图
博客分类: android
相关组件找到了4个
其一:http://stackoverflow.com/questions/16208365/create-circular-image-view-in-android
Java代码
package cn.com.idress.view;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Bitmap.Config;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.PixelFormat;
import android.graphics.PorterDuff.Mode;
import android.graphics.PorterDuffXfermode;
import android.graphics.Rect;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.widget.ImageView;
import com.lidroid.xutils.bitmap.core.AsyncDrawable;
public class RoundedImageView1 extends ImageView {
public RoundedImageView1(Context context) {
super(context);
// TODO Auto-generated constructor stub
}
public RoundedImageView1(Context context, AttributeSet attrs) {
super(context, attrs);
}
public RoundedImageView1(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 = null;
if(drawable instanceof BitmapDrawable){
b = ((BitmapDrawable)drawable).getBitmap() ;
}else if(drawable instanceof AsyncDrawable){
b = Bitmap
.createBitmap(
getWidth(),
getHeight(),
drawable.getOpacity() != PixelFormat.OPAQUE ? Bitmap.Config.ARGB_8888
: Bitmap.Config.RGB_565);
Canvas canvas1 = new Canvas(b);
// canvas.setBitmap(bitmap);
drawable.setBounds(0, 0, getWidth(),
getHeight());
drawable.draw(canvas1);
}
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(), 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(Mode.SRC_IN));
canvas.drawBitmap(sbmp, rect, rect, paint);
return output;
}
}
else if(drawable instanceof AsyncDrawable){
xxxxxxxxxxxxxxxxxx
}
加此处代码为解决xutils加载图片
其二:https://github.com/vinc3m1/RoundedImageView
此组件 用于圆角。圆图,但不支持xutils显示
其三:https://github.com/lopspower/CircularImageView
这个同样不支持xutils
在 onDraw 方法中 加入判断即可
else if(this.getDrawable() instanceof AsyncDrawable){
Drawable drawable = this.getDrawable();
image = Bitmap
.createBitmap(
getWidth(),
getHeight(),
drawable.getOpacity() != PixelFormat.OPAQUE ? Bitmap.Config.ARGB_8888
: Bitmap.Config.RGB_565);
Canvas canvas1 = new Canvas(image);
// canvas.setBitmap(bitmap);
drawable.setBounds(0, 0, getWidth(),
getHeight());
drawable.draw(canvas1);
}
其四:https://github.com/hdodenhof/CircleImageView
这个也不错。同样不支持xutils,判断尚不知道如何加
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