gridview动态设置子项宽高

最新推荐文章于 2023-04-18 17:56:01 发布

原创最新推荐文章于 2023-04-18 17:56:01 发布 · 4.9k 阅读

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本文将介绍如何在不同设备上优化GridView布局，包括宽度和高度的获取及设置，以及ROW_NUMBER的灵活应用。通过调整参数，实现网格视图自适应全屏显示，提升用户体验。

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1---

宽度比较好办，可以通过
int width = (int) this.getWindowManager().getDefaultDisplay().getWidth()/5;
得到。然后
gridview.setColumnWidth(Width);

2---

高度

这个可用，有效

public class MyAdapter extends BaseAdapter {

        GridView mGv;   
    public static int ROW_NUMBER = 5;

        public MyAdapter (GridView gv, Context mContext, ArrayList<String> list) {
        this.context = mContext;
        this.mGv = gv;
        lstDate = list;
    }

       @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        convertView = LayoutInflater.from(context).inflate(R.layout.item, null);

        AbsListView.LayoutParams param = new AbsListView.LayoutParams(
                android.view.ViewGroup.LayoutParams.FILL_PARENT,
                mGv.getHeight()/ROW_NUMBER);
        convertView.setLayoutParams(param);

        return convertView;
    }

另外，如果ROW_NUMBER是不定的

ROW_NUMBER = (gridAdapterList.size()+2)/3;

if (ROW_NUMBER != 0){
AbsListView.LayoutParams param = new AbsListView.LayoutParams(android.view.ViewGroup.LayoutParams.FILL_PARENT,gv_project.getHeight()/ROW_NUMBER);
convertView.setLayoutParams(param);
}

还有一种

public View getView(int position, View convertView, ViewGroup parent) {
convertView = LayoutInflater.from(context).inflate(R.layout.item, null);
convertView.setLayoutParams(
new GridView.LayoutParams((int) (parent.getWidth() / COLUMN_NUMBER),
(int) (parent.getHeight() / RAW_NUMBER)));
convertView.setLayoutParams(param);

return convertView;

}

http://stackoverflow.com/questions/5690144/how-can-i-force-a-gridview-to-use-the-whole-screen-regardless-of-display-size

http://www.bcoder.com/java/setup-the-numcolumns-and-column-width-and-row-height-of-gridview-at-runtime