问题描述
我想将未知数量的 ImageView 视图添加到我的布局中并带有边距.在 XML 中，我可以像这样使用 layout_margin:
I want to add an unknown number of ImageView views to my layout with margin. In XML, I can use layout_margin like this:
<ImageView android:layout_margin="5dip" android:src="@drawable/image"/>
有ImageView.setPadding()，但没有ImageView.setMargin().我认为它与 ImageView.setLayoutParams(LayoutParams) 类似，但不知道该输入什么.
There is ImageView.setPadding(), but no ImageView.setMargin(). I think it's along the lines of ImageView.setLayoutParams(LayoutParams), but not sure what to feed into that.
有人知道吗?
推荐答案
android.view.ViewGroup.MarginLayoutParams 有一个方法 setMargins(left, top, right, bottom).直接子类是:FrameLayout.LayoutParams、LinearLayout.LayoutParams 和 RelativeLayout.LayoutParams.
android.view.ViewGroup.MarginLayoutParams has a method setMargins(left, top, right, bottom). Direct subclasses are: FrameLayout.LayoutParams, LinearLayout.LayoutParams and RelativeLayout.LayoutParams.
使用例如线性布局:
LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
lp.setMargins(left, top, right, bottom);
imageView.setLayoutParams(lp);
MarginLayoutParams
这会以像素为单位设置边距.要扩展它，请使用
This sets the margins in pixels. To scale it use
context.getResources().getDisplayMetrics().density
DisplayMetrics
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