我正在尝试扩充布局并使用它在 ImageView 上设置位图。然后,我将该 ImageView 添加到线性布局并显示线性布局。这是我尝试过的:
public class TestActivity extends Activity {
private static Bitmap bitMap;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
LinearLayout l = new LinearLayout(this);
bitMap = Bitmap.createBitmap(getWindowManager().getDefaultDisplay().getWidth(),
getWindowManager().getDefaultDisplay().getHeight(),
Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bitMap);
LayoutInflater inflater = LayoutInflater.from(this);
View v1 = inflater.inflate(R.layout.main, null);
v1.layout(0, 0, getWindowManager().getDefaultDisplay().getWidth(),
getWindowManager().getDefaultDisplay().getHeight());
v1.draw(canvas);
ImageView i1 = new ImageView(this);
i1.setImageBitmap(bitMap);
i1.setAdjustViewBounds(true);
i1.setLayoutParams(new FrameLayout.LayoutParams(getWindowManager().getDefaultDisplay().getWidth(),
getWindowManager().getDefaultDisplay().getHeight()));
l.addView(i1);
setContentView(l);
}
}
不幸的是,没有正确创建位图。我做错了什么吗?
最佳答案
将布局转换为位图。
FrameLayout view = (FrameLayout)findViewById(R.id.framelayout);
view.setDrawingCacheEnabled(true);
view.buildDrawingCache();
Bitmap bm = view.getDrawingCache();
关于android - 从布局中获取位图,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/8119930/