我们平常可以直接在xml里设置margin,如:
<ImageView android:layout_margin="5dip" android:src="@drawable/image" />
但是有些情况下,需要在java代码里来写,可是View本身没有setMargin方法,怎么办呢?
通过查阅android api,我们发现android.view.ViewGroup.MarginLayoutParams有个方法setMargins(left, top, right, bottom).
其直接的子类有: FrameLayout.LayoutParams, LinearLayout.LayoutParams and RelativeLayout.LayoutParams.
使用方法:
LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
lp.setMargins(, , , );
imageView.setLayoutParams(lp);
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