Android 横向列表GridView 实现横向滚动

来源：互联网发布：程序员外包编辑：程序博客网时间：2024/05/21 17:40

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通过 HorizontalScrollView嵌套GridView来实现横向滚动的GridView

主界面布局代码：activity_main.xml

a.包裹HorizontalScrollView控件是GirdView横向滚动的基本条件
b.GirdView外包裹LinearLayout是java代码中参数设置的必要条件

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    android:orientation="vertical" >    <HorizontalScrollView        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:layout_margin="5dp" >        <LinearLayout            android:layout_width="wrap_content"            android:layout_height="fill_parent"            android:layout_margin="10dp" >            <GridView                android:id="@+id/grid"                android:layout_width="fill_parent"                android:layout_height="fill_parent"                android:gravity="center"                android:numColumns="auto_fit"                android:stretchMode="spacingWidthUniform" >            </GridView>        </LinearLayout>    </HorizontalScrollView></LinearLayout>

在java文件中设置GridView一些参数:

/**设置GirdView参数，绑定数据*/    private void setGridView() {        int size = cityList.size();        int length = 100;        DisplayMetrics dm = new DisplayMetrics();        getWindowManager().getDefaultDisplay().getMetrics(dm);        float density = dm.density;        int gridviewWidth = (int) (size * (length + 4) * density);        int itemWidth = (int) (length * density);        LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(                gridviewWidth, LinearLayout.LayoutParams.FILL_PARENT);        gridView.setLayoutParams(params); // 设置GirdView布局参数,横向布局的关键        gridView.setColumnWidth(itemWidth); // 设置列表项宽        gridView.setHorizontalSpacing(5); // 设置列表项水平间距        gridView.setStretchMode(GridView.NO_STRETCH);        gridView.setNumColumns(size); // 设置列数量=列表集合数        GridViewAdapter adapter = new GridViewAdapter(getApplicationContext(),                cityList);        gridView.setAdapter(adapter);    }

适配器和普通的写法一致,就不再赘述.

Demo地址

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