Android LinearLayout动态添加View时如何设置View间的间距

Question

在一个LinearLayout中动态添加View（Java代码实现）：

for (int i = 0; i < mListViews.size(); i++) {
                View v = inflater.inflate(ovalLayoutId, null);
                ovalLayout.addView(v);
            }

其中OvalLayout是一个居中对齐的LinearLayout，ovalLayoutId是要添加的View。如何才能设置这些View之间的间隔（水平方向）？

Answer 1

LinearLayout is vertical:

androidandroid:layout_marginBottom="Xdip" and/or android:layout_marginTop="Xdip" 

LinearLayout is horizontal:

androidandroid:layout_marginLeft="Xdip" and/or android:layout_marginRight="Xdip" 

X is a numerical value, such as: 3.

Hope this helps.

Answer 2

LinearLayout also has a pider, similar to ListView. Set the pider for your ovalLayout, and then set the pider display mode to middle:

mContainer = new LinearLayout(getContext());
mContainer.setOrientation(LinearLayout.VERTICAL);
mContainer.setpiderDrawable(getContext().getResources().getDrawable(R.drawable.common_pider_black_10));
mContainer.setShowpiders(LinearLayout.SHOW_pIDER_MIDDLE);

Answer 3

There are many ways, just two:
1. By setting LayoutParams for the view, when adding View, just use layoutParams as an input parameter;
2. You can add a BlankView with a certain width but a transparent background behind or below the view, so that the views are separated by BlankView.

Answer 4

Add my own Java code writing method:

for (int i = 0; i < mListViews.size(); i++) {
                View v = inflater.inflate(ovalLayoutId, null);
                if(i==0){
                    ovalLayout.addView(v);//第一个view不用设置间隔
                }
                else {
                    LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT,
                        LinearLayout.LayoutParams.WRAP_CONTENT);
                    lp.setMargins(15,0,0,0);
                    v.setLayoutParams(lp);
                    ovalLayout.addView(v);
                }

            }