[英]Android: Comparing images in a ImageButton and resource
我有一个ImageButton,它的背景设置如下:
final ImageButton[][] gridButton = new ImageButton[5][5];
gridButton[0][0] = (ImageButton) findViewById(R.id.imageButton1);
gridButton[0][0].setImageResource(ButtonIcon.l[0]); //ButtonIcon.l[0] is an image ID from my resources folder.
gridButton[0][0].setOnClickListener(new View.OnClickListener() {
ButtonIcon justAnObject = new ButtonIcon();
@Override
public void onClick(View v) {
int newId = justAnObject.changeIconId(((BitmapDrawable)gridButton[0][0].getDrawable()).getBitmap());
// int newId = justAnObject.changeIconId(gridButton[0][0].getDrawable());
gridButton[0][0].setImageResource(newId);
}
});
在buttonIcon类中,我有一个方法进行比较:
public int changeIconId(Bitmap object){
if (object == ((BitmapDrawable) getResources().getDrawable(R.drawable.load0)).getBitmap()){
return R.drawable.load1;
}
else return R.drawable.straight0;
}
所有ID都是指我资源文件夹中的图像。 我不太确定如何解决这个问题。
谢谢。
比较两个位图
public boolean equals(Bitmap bitmap1, Bitmap bitmap2) {
ByteBuffer buffer1 = ByteBuffer.allocate(bitmap1.getHeight() * bitmap1.getRowBytes());
bitmap1.copyPixelsToBuffer(buffer1);
ByteBuffer buffer2 = ByteBuffer.allocate(bitmap2.getHeight() * bitmap2.getRowBytes());
bitmap2.copyPixelsToBuffer(buffer2);
return Arrays.equals(buffer1.array(), buffer2.array());
}
* 更新后*
Bitmap bitmap = ((BitmapDrawable)fDraw).getBitmap();
Bitmap bitmap2 = ((BitmapDrawable)sDraw).getBitmap();
if(bitmap == bitmap2)
{
//Code blcok
}
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