问题描述

android-在GridView视图中设置水平滚动的图像布局

我想以gridview的视图显示图像缩略图，要求这些图像排成一列以水平滚动条的形式显示。我设置了很多参数，但是检查不出哪里出错了。显示出来的图像根本不是按照原计划显示的。请大家帮忙纠错，谢谢！
mian.xml

<LinearLayout    xmlns:android=""http://schemas.android.com/apk/res/android""    android:layout_width=""fill_parent""    android:layout_height=""fill_parent""    android:orientation=""vertical"">    <GridView        android:layout_width=""500dp""        android:layout_height=""400dp""        android:id=""@+id/grid""        android:columnWidth=""300dp""        android:padding=""5dp""        android:horizontalSpacing=""10dp""        android:verticalSpacing=""10dp""        android:scrollbars=""horizontal""        android:stretchMode=""spacingWidthUniform"">    </GridView></LinearLayout>

Activity 代码:

//---显示图像---Integer[] imageIDs = {        R.drawable.library        R.drawable.library        R.drawable.library        R.drawable.library        R.drawable.library        R.drawable.library        R.drawable.library                   };/** 当activity第一次创建时，调用以下方法 */@Overridepublic void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.main);    GridView gridView = (GridView) findViewById(R.id.grid);    gridView.setAdapter(new ImageAdapter(this));    gridView.setNumColumns(imageIDs.length);}public class ImageAdapter extends BaseAdapter{    private Context context;    public ImageAdapter(Context c)    {        context = c;    }    public int getCount() {        return imageIDs.length;    }    public Object getItem(int position) {        return position;    }    public long getItemId(int position) {        return position;    }    public View getView(int position View convertView ViewGroup parent)    {        ImageView imageView;        if (convertView == null) {            imageView = new ImageView(context);            imageView.setLayoutParams(new GridView.LayoutParams(100 100));            imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);        } else {            imageView = (ImageView) convertView;        }        imageView.setImageResource(imageIDs[position]);        return imageView;    }}

解决方案

import android.app.Activity;import android.content.Context;import android.os.Bundle;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.GridView;import android.widget.ImageView;public class Test2Activity extends Activity {       /** Called when the activity is first created. */        public Integer[] imageIDs = {                   R.drawable.library                   R.drawable.library                   R.drawable.library                      R.drawable.library                      R.drawable.library                   R.drawable.library                           R.drawable.library                             };    @Override    public void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);            setContentView(R.layout.main);            GridView gridView = (GridView) findViewById(R.id.grid);            gridView.setAdapter(new ImageAdapter(this imageIDs));            gridView.setNumColumns(imageIDs.length);    }    class ImageAdapter extends BaseAdapter    {        private Context context;        Integer[] imageIDs;        public ImageAdapter(Context c Integer[] imageIDResults)        {            context = c;            imageIDs = imageIDResults;        }        public int getCount() {            return imageIDs.length;        }        public Object getItem(int position) {            return position;        }        public long getItemId(int position) {            return position;        }        public View getView(int position View convertView ViewGroup parent)        {            ImageView imageView;            if (convertView == null) {                imageView = new ImageView(context);                imageView.setLayoutParams(new GridView.LayoutParams(100 100));                imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);            } else {                imageView = (ImageView) convertView;            }            imageView.setImageResource(imageIDs[position]);            return imageView;        }    }}

解决方案二：
试试下面的代码：

    <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:id=""@+id/horizontalScrollView1""        android:layout_width=""fill_parent""        android:layout_height=""wrap_content""       android:fillViewport=""true""       android:scrollbars=""none"" >    <GridView        android:layout_width=""500dp""        android:layout_height=""400dp""        android:id=""@+id/grid""        android:columnWidth=""300dp""        android:padding=""5dp""        android:horizontalSpacing=""10dp""        android:verticalSpacing=""10dp""        android:scrollbars=""horizontal""        android:stretchMode=""spacingWidthUniform"">    </GridView>     </HorizontalScrollView></LinearLayout>

解决方案三：

<HorizontalScrollView    android:id=""@+id/horizontalScrollView1""    android:layout_width=""fill_parent""    android:layout_height=""wrap_content""   android:fillViewport=""true""   android:scrollbars=""horizontal"" ><GridView    android:layout_width=""500dp""    android:layout_height=""400dp""    android:id=""@+id/grid""    android:columnWidth=""300dp""    android:padding=""5dp""    android:horizontalSpacing=""100dp""    android:verticalSpacing=""10dp""    android:scrollbars=""horizontal""    android:stretchMode=""spacingWidthUniform""></GridView></HorizontalScrollView>