ScrollView--嵌套GridView的解决办法

 

前些日子在开发中用到了需要ScrollView嵌套GridView的情况，由于这两款控件都自带滚动条，当他们碰到一起的时候便会出问题，即GridView会显示不全。 

解决办法，自定义一个GridView控件 

 

public class MyGridView extends GridView {

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

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

    public MyGridView(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }

    @Override
    public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {

        int expandSpec = MeasureSpec.makeMeasureSpec(
                Integer.MAX_VALUE >> 2, MeasureSpec.AT_MOST);
        super.onMeasure(widthMeasureSpec, expandSpec);
    }
}

该自定义控件只是重写了GridView的onMeasure方法，使其不会出现滚动条，ScrollView嵌套ListView也是同样的道理，不再赘述。 

XML布局代码 

<ScrollView Android:layout_height="wrap_content"
        Android:layout_width="fill_parent" android:id="@+id/scroll_content">
        <com.yourclass.MyGridView xmlns:Android="http://schemas.android.com/apk/res/android"
            Android:id="@+id/grid_view" android:layout_width="fill_parent"
            Android:layout_height="wrap_content" android:numColumns="auto_fit"
            Android:horizontalSpacing="1dip" android:verticalSpacing="1dip"
            Android:columnWidth="150dip" android:stretchMode="columnWidth"
            Android:gravity="center">

        </com.yourclass.MyGridView>
    </ScrollView>

Java调用代码 

MyGridView gridview = (MyGridView) findViewById(R.id.grid_view);
gridview.setAdapter(new ImageAdapter(this));