在列表视图中获取不同的多个图像视图

时间:2013-12-02 09:45:18

标签: android layout-inflater

我一直在尝试实现一个列表视图,它在列表视图的单行中有五个图像视图。我发现它可以用布局inflater完成,但因为我是android的新手,我无法确切地知道如何充分利用它。我想得到这种观点:

enter image description here

L,S,D,A,E是图像,它应该根据动态提供的数据相应地改变列表视图中的不同用户。任何人都可以帮我解决这个代码片段,或者只是告诉我如何实现它?

4 个答案:

答案 0 :(得分:2)

好的,所以你的列表视图应该膨胀这种类型的布局:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_height="wrap_content"
android:layout_width="fill_parent"
android:orientation="horizontal"
android:id="@+id/layoutContainer" >
    <ImageView
        android:layout_height="wrap_content"
        android:layout_width="wrap_content"
        android:id="@+id/iv1" />
    <ImageView
        android:layout_height="wrap_content"
        android:layout_width="wrap_content"
        android:id="@+id/iv2" />
    <ImageView
        android:layout_height="wrap_content"
        android:layout_width="wrap_content"
        android:id="@+id/iv3" />
    <ImageView
        android:layout_height="wrap_content"
        android:layout_width="wrap_content"
        android:id="@+id/iv4" />
    <ImageView
        android:layout_height="wrap_content"
        android:layout_width="wrap_content"
        android:id="@+id/iv5" />
</LinearLayout>

将其保存到位于row.xml文件夹中的layout

接下来在您的活动的onCreate()方法中实现此功能:

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    CustomAdapter myAdapter = new CustomAdapter(getApplicationContext());
    ListView mainListView = (ListView) findViewById(R.id.lv);
    mainListView.setAdapter(myAdapter);
}

最后,您需要创建CustomAdapter.java类,如下所示:

import android.content.Context;
import android.graphics.Bitmap;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;

public class CustomAdapter extends BaseAdapter {
    private Bitmap[][] data;
    private int count;
    private Context context;

    public CustomAdapter(Context context) {
        this.context = context;
            data = new Bitmap[100][];
            count = 0;
    }
    @Override
    public int getCount() {
        return count;
    }
    @Override
    public Bitmap[] getItem(int position) {
        // TODO Auto-generated method stub
        return data[position];
    }
    @Override
    public long getItemId(int position) {
        // TODO Auto-generated method stub
        return position;
    }
    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        // TODO Auto-generated method stub
        LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        View adapterView = convertView;
        if (adapterView == null) {
            adapterView = inflater.inflate(R.layout.row, null);
        }
        ImageView imageView = (ImageView) adapterView.findViewById(R.id.iv1);
        imageView.setImageBitmap(data[position][0]);
        //Repeat the last two steps for all five images, changing the last index accordingly
        return adapterView;
    }
    public void addBitmapArray (Bitmap[] newValue) {
        data[++count] = newValue;
    }
}

答案 1 :(得分:1)

在列表的行中添加一个linearlayout LinearLayout 1,然后在适配器中执行以下操作,将动态图像添加到列表项中。

 public View getView(final int position, View convertView, ViewGroup parent)
{
    // System.out.println("  inside KeyvalueAdapter..");
    ViewHolder holder = null;
    if (convertView == null)
    {
        LayoutInflater mInflater = (LayoutInflater) context
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        convertView = mInflater.inflate(R.layout.new_row, null);
        holder = new ViewHolder();

        holder.tv_title = (TextView) convertView.findViewById(R.id.titleTextView);

        ImageView imageView = new ImageView(context);
        imageView.setImageResource(resId);

        LinearLayout linearLayout = (LinearLayout) findViewById(R.id.LinearLayout1);
        linearLayout.addView(imageView);


        convertView.setTag(holder);

    }
    else holder = (ViewHolder) convertView.getTag();

    holder.tv_title.setText(notifList.get(position));

    return convertView;

}

答案 2 :(得分:0)

如果要加载不同的图像,则必须扩展listview适配器: example如果我理解你的问题,请{。}}

答案 3 :(得分:0)

查看此主题: Android custom Row Item for ListView

您必须使用5个图像视图编写自己的xml