060-Android中ListView嵌套ScrollView

Android中ListView嵌套ScrollView

这种情况下

ListView和其他的布局是平级的关系

都在ScrollView的布局之下

实现了滚动布局和列表

我们可以写一个SolidListView 继承 ListView

public class SolidListView extends ListView {

    public SolidListView(Context context) {
        super(context);
    }

    public SolidListView(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public SolidListView(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
    }

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        int expandSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2, MeasureSpec.AT_MOST);
        super.onMeasure(widthMeasureSpec, expandSpec);
    }
}

如果是GridView嵌套ScrollView

也是一样的道理

public class SolidGridView extends GridView {
    public SolidGridView(Context context) {
        super(context);
    }

    public SolidGridView(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public SolidGridView(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
    }

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        int expandSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2, MeasureSpec.AT_MOST);
        super.onMeasure(widthMeasureSpec, expandSpec);
    }
}

在布局中,直接使用SolidListView和SolidGridView

<ScrollView
    android:layout_width="match_parent"
    android:layout_height="match_parent" >
    
    <LinearLayout
        android:layout_width="match_parent"
        android:orientation="vertical"
        android:layout_height="match_parent">

        <com.lich.view.SolidListView
            android:layout_width="match_parent"
            android:layout_height="wrap_content" />

        <com.lich.view.SolidGridView
            android:layout_width="match_parent"
            android:layout_height="wrap_content" />
        
    </LinearLayout>
    
</ScrollView>