我想在Android中以dp的形式编程设置ImageView的高度和宽度。我该如何实现?
使用 dp 设置宽度和高度:
imageview.getLayoutParams().height = (int) getResources().getDimension(R.dimen.imageview_height);
imageview.getLayoutParams().width = (int) getResources().getDimension(R.dimen.imageview_width);
在你的dimens.xml文件中提供键的值:
<dimen name="imageview_width">50dp</dimen>
<dimen name="imageview_height">50dp</dimen>
final float scale = getResources().getDisplayMetrics().density;
int dpWidthInPx = (int) (200 * scale);
int dpHeightInPx = (int) (150 * scale);
然后设置图片视图大小:
LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(dpWidthInPx, dpHeightInPx);
imageView.setLayoutParams(layoutParams);
ImageView im = (ImageView)findViewById(R.id.image1);
LayoutParams params = im.getLayoutParams();
params.height = getActivity().getResources().getDimensionPixelSize(R.dimen.item_height);
params.width = getActivity().getResources().getDimensionPixelSize(R.dimen.item_width);
<dimen name="item_height">80dp</dimen>
<dimen name="item_width">80dp</dimen>
ImageView im = (ImageView)findViewById(R.id.image1);
LayoutParams params = im.getLayoutParams();
params.height = 100;
params.width = 100;
int dipAmount=350;
float scale = imageview.Resource.DisplayMetrics.Density;
int converter =(int) (350 * scale + 0.5f);
imageView.LayoutParameters.Height=converter;
final float scale = getContext().getResources().getDisplayMetrics().density;
int height_ = (int) (250 * scale + 0.5f);
int width_ = (int) (250 * scale + 0.5f);
250是以dp为单位的
ViewGroup.LayoutParams params = ImageView.getLayoutParams();
params.height = height_;
params.width = width_;
ImageView.setLayoutParams(params);
试试这个:
image_view.getLayoutParams().height = 20;
image_view.getLayoutParams().width= 20;
如果可以的话,请给我你的反馈。这对我来说是有效的工作。