有的时候我们需要为一个listview设置固定的数据，下边就是如何设置静态的数据，之前先给大家看一看效果图：
布局文件listview 的主页面
<"1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" > <ListView android:id="@+id/listview" android:layout_width="fill_parent" android:layout_height="fill_parent" > </ListView> </LinearLayout>
然后的一个布局文件为每一个listview的item，listview_item.xml有图片和文字
<"1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="horizontal" > <ImageView android:id="@+id/listitem_iv" android:layout_width="74dp" android:layout_height="74dp" android:src="@drawable/about_brand" /> <TextView android:id="@+id/listitem_tv" android:layout_width="match_parent" android:layout_height="74dp" android:text="TextView" android:textAlignment="center" android:textSize="55dp" /> </LinearLayout>
然后关键的是如何设置静态数据：
这界面的控制类ListViewUseAdapter.java
import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import android.app.Activity; import android.os.Bundle; import android.view.View; import android.widget.AdapterView; import android.widget.Toast; import android.widget.AdapterView.OnItemClickListener; import android.widget.ListView; public class ListViewUseAdapter extends Activity { private ListView listview; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.listview_test); listview = (ListView) this.findViewById(R.id.listview); // 设置适配器的图片资源 int[] imageId = new int[] { R.drawable.chat_tool_camera, R.drawable.chat_tool_location, R.drawable.chat_tool_paint, R.drawable.chat_tool_video, R.drawable.chat_tool_voice, R.drawable.about_brand }; // 设置标题 String[] title = new String[] { "相机", "定位", "画笔", "视频", "声音", "聊天" }; List<Map<String, Object>> listitem = new ArrayList<Map<String, Object>>(); // 将上述资源转化为list集合 for (int i = 0; i < title.length; i++) { Map<String, Object> map = new HashMap<String, Object>(); map.put("image", imageId[i]); map.put("title", title[i]); listitem.add(map); } ListViewAdapter adapter = new ListViewAdapter(this, listitem); listview.setAdapter(adapter); listview.setOnItemClickListener(new OnItemClickListener() { @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { Toast.makeText(ListViewUseAdapter.this, "haha", Toast.LENGTH_SHORT).show(); } }); } }
然后需要的适配器如下：
import java.util.List; import java.util.Map; import android.content.Context; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.BaseAdapter; import android.widget.ImageView; import android.widget.TextView; public class ListViewAdapter extends BaseAdapter { private Context context; private List<Map<String, Object>> listitem; public ListViewAdapter(Context context, List<Map<String, Object>> listitem) { this.context = context; this.listitem = listitem; } @Override public int getCount() { return listitem.size(); } @Override public Object getItem(int position) { return listitem.get(position); } @Override public long getItemId(int position) { return position; } @Override public View getView(int position, View convertView, ViewGroup parent) { if (convertView == null) { convertView = LayoutInflater.from(context).inflate(R.layout.listview_item, null); } ImageView imageView = (ImageView) convertView.findViewById(R.id.listitem_iv); TextView textView = (TextView) convertView.findViewById(R.id.listitem_tv); Map<String, Object> map = listitem.get(position); imageView.setImageResource((Integer) map.get("image")); textView.setText(map.get("title") + ""); return convertView; } }
希望本文所述对大家学习Android软件编程有所帮助。
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