自定义GridView获取数据长度来解决scrollView嵌套GridView数据显示不全问题

package com.example.topgridview;



import android.content.Context;
import android.util.AttributeSet;
import android.view.View.MeasureSpec;
import android.widget.GridView;



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);
    }
}

布局写

<com.example.topgridview.MyGridView
    android:id="@+id/grid"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:gravity="center"
    android:horizontalSpacing="12dp"
    android:numColumns="3"
    android:verticalSpacing="10dp"
    android:background="#fff"
   >
   </com.example.topgridview.MyGridView>

不要忘了
gridView.setFocusable(false);不让滑动!