设置圆形图片

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">

<com.bwei.jishixiong.makingfriends4.Base.activity.CircularImage
android:id="@+id/icon"
android:layout_width="35dp"
android:layout_height="35dp"
android:layout_marginTop="5dp"
android:scaleType="centerCrop"
android:src="@drawable/ll_img2" />

</LinearLayout>

package com.bwei.jishixiong.makingfriends4.Base.activity;

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.RectF;
import android.util.AttributeSet;

public class CircularImage extends MaskedImage {
public CircularImage(Context paramContext) {
super(paramContext);
}

public CircularImage(Context paramContext, AttributeSet paramAttributeSet) {
super(paramContext, paramAttributeSet);
}

public CircularImage(Context paramContext, AttributeSet paramAttributeSet, int paramInt) {
super(paramContext, paramAttributeSet, paramInt);
}

public Bitmap createMask() {
int i = getWidth();
int j = getHeight();
Bitmap.Config localConfig = Bitmap.Config.ARGB_8888;
Bitmap localBitmap = Bitmap.createBitmap(i, j, localConfig);
Canvas localCanvas = new Canvas(localBitmap);
Paint localPaint = new Paint(1);
localPaint.setColor(-16777216);
float f1 = getWidth();
float f2 = getHeight();
RectF localRectF = new RectF(0.0F, 0.0F, f1, f2);
localCanvas.drawOval(localRectF, localPaint);
return localBitmap;
}

}

package com.bwei.jishixiong.makingfriends4.Base.activity;
//com.bwie.text.RoundCornerI
import android.annotation.SuppressLint;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.PorterDuff;
import android.graphics.PorterDuffXfermode;
import android.graphics.Xfermode;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.widget.ImageView;

public abstract  class MaskedImage  extends ImageView {

private static final Xfermode MASK_XFERMODE;
private Bitmap mask;
private Paint paint;

static {
PorterDuff.Mode localMode = PorterDuff.Mode.DST_IN;
MASK_XFERMODE = new PorterDuffXfermode(localMode);
}

public MaskedImage(Context paramContext) {
super(paramContext);
}

public MaskedImage(Context paramContext, AttributeSet paramAttributeSet) {
super(paramContext, paramAttributeSet);
}

public MaskedImage(Context paramContext, AttributeSet paramAttributeSet, int paramInt) {
super(paramContext, paramAttributeSet, paramInt);
}

public abstract Bitmap createMask();

@SuppressLint("DrawAllocation")
protected void onDraw(Canvas paramCanvas) {
Drawable localDrawable = getDrawable();
if (localDrawable == null)
return;
try {
if (this.paint == null) {
Paint localPaint1 = new Paint();
this.paint = localPaint1;
this.paint.setFilterBitmap(false);
Paint localPaint2 = this.paint;
Xfermode localXfermode1 = MASK_XFERMODE;
@SuppressWarnings("unused")
Xfermode localXfermode2 = localPaint2.setXfermode(localXfermode1);
}
float f1 = getWidth();
float f2 = getHeight();
int i = paramCanvas.saveLayer(0.0F, 0.0F, f1, f2, null, 31);
int j = getWidth();
int k = getHeight();
localDrawable.setBounds(0, 0, j, k);
localDrawable.draw(paramCanvas);
if ((this.mask == null) || (this.mask.isRecycled())) {
Bitmap localBitmap1 = createMask();
this.mask = localBitmap1;
}
Bitmap localBitmap2 = this.mask;
Paint localPaint3 = this.paint;
paramCanvas.drawBitmap(localBitmap2, 0.0F, 0.0F, localPaint3);
paramCanvas.restoreToCount(i);
return;
} catch (Exception localException) {
StringBuilder localStringBuilder = new StringBuilder()
.append("Attempting to draw with recycled bitmap. View ID = ");
System.out.println("localStringBuilder=="+localStringBuilder);
}
}

}

package com.bwei.jishixiong.makingfriends4.Base.adapter;

import android.content.Context;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;

import com.bwei.jishixiong.makingfriends4.Base.bean.Reward;
import com.bwei.jishixiong.makingfriends4.R;

import java.util.ArrayList;
import java.util.List;

/**
* Created by jishixiong on 2016/5/17.
*/
public class MyFindLivingGridViewAdapter extends BaseAdapter {
List<Reward> nlist = new ArrayList<Reward>();

Context context;
int count;
public MyFindLivingGridViewAdapter(Context context) {
super();
this.context=context;

}
public void addrest(List<Reward> nlist){
this.nlist.clear();
this.nlist.addAll(nlist);
this.notifyDataSetChanged();
}

@Override
public int getCount() {
return nlist.size();
}

@Override
public Object getItem(int position) {
return null;
}

@Override
public long getItemId(int position) {
return 0;
}

@Override
public View getView(int position, View convertView, ViewGroup parent) {
VoidHolder holder;
if(convertView==null){
holder=new VoidHolder();
convertView=View.inflate(context, R.layout.find_listview_livingarea_gridview_item,null);
holder.icon=(ImageView) convertView.findViewById(R.id.icon);
convertView.setTag(holder);
}else{
holder = (VoidHolder) convertView.getTag();
}
holder.icon.setImageResource(R.drawable.ll_img2);

return convertView;
}
class VoidHolder{
ImageView icon;

}

}