<com.bn.summer.GGView3
android:layout_width="100dip"
android:layout_height="114dip"
android:layout_marginLeft="11dip"
/>
View类的实现：
package com.bn.summer;
import android.content.Context;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.util.AttributeSet;
import android.view.View;
public class GGView3 extends View{
int COMPONENT_WIDTH;
int COMPONENT_HEIGHT;
boolean initflag=false;
Bitmap[] bma;
Paint paint;
int[] drawablesId;
int currIndex=0;
boolean workFlag=true;
public GGView3(Context father,AttributeSet as)
{
super(father,as);
this.drawablesId=new int[]
{
R.drawable.room1,
R.drawable.room2,
R.drawable.room3,
};
bma=new Bitmap[drawablesId.length];
initBitmaps();
paint=new Paint();
paint.setFlags(Paint.ANTI_ALIAS_FLAG);//消除锯齿
new Thread()
{
public void run()
{
while(workFlag)
{
currIndex=(currIndex+1)%drawablesId.length;
GGView3.this.postInvalidate();
try
{
Thread.sleep(2500);
} catch (InterruptedException e)
{
e.printStackTrace();
}
}
}
}.start();
}
public void initBitmaps()
{
Resources res=this.getResources();
for(int i=0;i<drawablesId.length;i++)
{
bma[i]=BitmapFactory.decodeResource(res, drawablesId[i]);
}
}
public void onDraw(Canvas canvas)
{
if(!initflag)
{
COMPONENT_WIDTH=this.getWidth();//获取view的宽度
COMPONENT_HEIGHT=this.getHeight();//获取view的高度
initflag=true;
}
int picWidth=bma[currIndex].getWidth();
int picHeight=bma[currIndex].getHeight();
int startX=(COMPONENT_WIDTH-picWidth)/2;
int startY=(COMPONENT_HEIGHT-picHeight)/2;
//绘制背景色
//canvas.drawARGB(255, 244, 214, 116);
canvas.drawARGB(255, 200, 128, 128);
canvas.drawBitmap(bma[currIndex], startX,startY, paint);
}
}