Android图片相框.doc

10publicstaticBitmapzoomBitmap(Bitmapbitmap,intw,inth){
02
intwidth=bitmap.getWidth();
03
intheight=bitmap.getHeight();
04
Matrixmatrix=newMatrix();
05
floatscaleWidht=((float)w/width);
06
floatscaleHeight=((float)h/height);
07
matrix.postScale(scaleWidht,scaleHeight);
08
Bitmapnewbmp=Bitmap.createBitmap(bitmap,0,0,width,height,matrix,true);
09
returnnewbmp;

}

=(ImageSwitcher)findViewById(R.id.switcher01);
mSwitcher.setFactory(this);
mSwitcher.setInAnimation(AnimationUtils.loadAnimation(this,android.R.anim.fade_in));
mSwitcher.setInAnimation(AnimationUtils.loadAnimation(this,android.R.anim.fade_out));
g=(Gallery)findViewById(R.id.gallery01);
//如果要从sdcard取图片需要改为newImageAdapter(this,getSD());其中getSD()为自定义的方法
g.setAdapter(newImageAdapter(this,getSD()));
g.setOnItemSelectedListener(this);
//为单击mSwitcher设置一个监听器

//显示Switcher里的模式
@Override
publicViewmakeView(){
//TODOAuto-generatedmethodstub
ImageViewi=newImageView(this);
i.setBackgroundColor(0xFF000000);
i.setScaleType(ImageView.ScaleType.FIT_CENTER);
i.setLayoutParams(newImageSwitcher.LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.FILL_PARENT));
returni;
}
//将gallery中选中的图片传给ImageSwitcher
@Override
publicvoidonItemSelected(AdapterView<?>parent,Viewv,intposition,
longid){
//TODOAuto-generatedmethodstub
//取的当前图片路径，并将图片的路径给了mSwitcher
path=files[position].getPath();
uri=Uri.parse("file://"+path);
//System.out.println(uri);
mSwitcher.setImageURI(uri);
itemId=position;
}

publicclassImageAdapterextendsBaseAdapter{
intmGalleryItemBackground;
privateContextmContext;
privateList<String>list;
publicImageAdapter(){}
publicImageAdapter(Contextc,List<String>li){
mContext=c;
list=li;
}
@Override
publicintgetCount(){
//TODOAuto-generatedmethodstub
returnlist.size();
}
@Override
publicObjectgetItem(intposition){
//TODOAuto-generatedmethodstub
returnposition;
}
@Override
publiclonggetItemId(intposition){
//TODOAuto-generatedm