问题描述
我有两个位图,我的onCreate()。
I have two bitmaps and I create them in onCreate().
Bitmap bmp1 = BitmapFactory.decodeResource(getResources(),id);
Bitmap bmp2 = BitmapFactory.decodeResource(getResources(),id);
BMP1和BMP2相同。我修改BMP2在我的应用程序。经过我的任务完成了,我点击清除按钮。我试图复制BMP1(干净的形象)到BMP2(改变形象),当我点击清除按钮。但我不希望使用createBitmap()或复制()函数。因为这些都是创建新的位图对象。我只想用我的两个位图(BMP1和BMP2)。我怎样才能复制BMP1到BMP2?我搜索谷歌,但你感到沉沦这样与createBitmap()或复制()。
bmp1 and bmp2 are same. I modify bmp2 in my application. After my job is done, I click "Clear" button. I am trying to copy bmp1 (clean image) to bmp2(changed image) when I click "Clear" button. But I don't want to use createBitmap() or copy() function. Because these are create new Bitmap objects. I want to use only my two bitmaps (bmp1 and bmp2). How can I copy bmp1 to bmp2? I search google but everbody do this with createBitmap() or copy().
感谢。
推荐答案
我解决我的问题。
首先,我创建了BMP1,BMP2和帆布BMP2:
First I created bmp1,bmp2 and canvas for bmp2:
bmp1 = BitmapFactory.decodeResource(cont.getResources(), R.drawable.image);
bmp2 = bmp1.copy(bmp1.getConfig(), true);
canvasBmp2 = new Canvas( bmp2 );
当我想BMP1复制到BMP2:
When I want to copy bmp1 to bmp2:
canvasBmp2.drawBitmap(bmp1, 0, 0, null);
@Override
protected void onDraw(Canvas canvas)
{
canvas.drawBitmap(bmp2, 0, 0, null);
}
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