现在的问题是,我有个Activity,继承了ListActivity,现在我想在ListView上面显示一行导航,请问如何做?<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="fill_parent"><LinearLayout android:orientation="horizontal"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<ImageView android:id="@+id/imgsmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="5px"/>
</LinearLayout>
<LinearLayout android:orientation="horizontal"
android:layout_width="665px"
android:layout_height="wrap_content">
<LinearLayout android:orientation="horizontal"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<TextView android:id="@+id/txt1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#FFFFFFFF"
android:text="名 称:"
android:textSize="22px" />
<TextView android:id="@+id/txtname"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#FFFFFFFF"
android:textSize="22px" />
<TextView android:id="@+id/txt2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#FFFFFFFF"
android:text="价 格:"
android:textSize="13px" />
<TextView android:id="@+id/txtprice"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#FFFFFFFF"
android:textSize="22px" />
</LinearLayout>
<LinearLayout android:orientation="horizontal"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<TextView android:id="@+id/txt3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#FFFFFFFF"
android:text="类 别:"
android:textSize="22px" />
<TextView android:id="@+id/txtmsecondid"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#FFFFFFFF"
android:textSize="22px" />
</LinearLayout>
</LinearLayout>
<LinearLayout android:orientation="horizontal"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="right"
>
<Button android:id="@+id/btselect"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|top"
android:text="详 细"
/>
<Button android:id="@+id/btinsert"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:text="预 定"
/>
</LinearLayout>
</LinearLayout>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="fill_parent"><LinearLayout android:orientation="horizontal"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<ImageView android:id="@+id/imgsmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="5px"/>
</LinearLayout>
<LinearLayout android:orientation="horizontal"
android:layout_width="665px"
android:layout_height="wrap_content">
<LinearLayout android:orientation="horizontal"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<TextView android:id="@+id/txt1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#FFFFFFFF"
android:text="名 称:"
android:textSize="22px" />
<TextView android:id="@+id/txtname"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#FFFFFFFF"
android:textSize="22px" />
<TextView android:id="@+id/txt2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#FFFFFFFF"
android:text="价 格:"
android:textSize="13px" />
<TextView android:id="@+id/txtprice"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#FFFFFFFF"
android:textSize="22px" />
</LinearLayout>
<LinearLayout android:orientation="horizontal"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<TextView android:id="@+id/txt3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#FFFFFFFF"
android:text="类 别:"
android:textSize="22px" />
<TextView android:id="@+id/txtmsecondid"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#FFFFFFFF"
android:textSize="22px" />
</LinearLayout>
</LinearLayout>
<LinearLayout android:orientation="horizontal"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="right"
>
<Button android:id="@+id/btselect"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|top"
android:text="详 细"
/>
<Button android:id="@+id/btinsert"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:text="预 定"
/>
</LinearLayout>
</LinearLayout>
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your own view MUST contain a ListView object with the id "@android:id/list" (or list if it's in code)也就是说,只要layout里面有一个listview,并且id按照规定来指定,就行了。
有办法的搞定代码贴出来...说的嘛,太抽象...
MyAdapter adapter = new MyAdapter(this);
setListAdapter(adapter); public class MyAdapter extends BaseAdapter{ private LayoutInflater mInflater;
public MyAdapter(Context context){
this.mInflater = LayoutInflater.from(context);
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return mData.size();
} @Override
public Object getItem(int arg0) {
// TODO Auto-generated method stub
return null;
} @Override
public long getItemId(int arg0) {
// TODO Auto-generated method stub
return 0;
} @Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder = null;
if (convertView == null) {
holder=new ViewHolder();
convertView = mInflater.inflate(R.layout.cookbooklist, null);
holder.imgsmall = (ImageView)convertView.findViewById(R.id.imgsmall);
holder.txtname = (TextView)convertView.findViewById(R.id.txtname);
holder.txtprice = (TextView)convertView.findViewById(R.id.txtprice);
holder.txt1 = (TextView)convertView.findViewById(R.id.txt1);
holder.txtbreak = (TextView)convertView.findViewById(R.id.txtbreak);
holder.txt2 = (TextView)convertView.findViewById(R.id.txt2);
holder.txt3 = (TextView)convertView.findViewById(R.id.txt3);
holder.txt4 = (TextView)convertView.findViewById(R.id.txt4);
holder.txtmsecondid = (TextView)convertView.findViewById(R.id.txtmsecondid);
holder.btselect = (Button)convertView.findViewById(R.id.btselect);
holder.btinsert = (Button)convertView.findViewById(R.id.btinsert);
convertView.setTag(holder);
}else {
holder = (ViewHolder)convertView.getTag();
}
holder.imgsmall.setBackgroundResource((Integer)mData.get(position).get("imgsmall"));
holder.txtname.setText((String)mData.get(position).get("txtname"));
holder.txtbreak.setText((String)mData.get(position).get("txtbreak"));
holder.txtmsecondid.setText((String)mData.get(position).get("txtmsecondid"));
holder.txtprice.setText((String)mData.get(position).get("txtprice"));
holder.btselect.setOnClickListener(new Select());
holder.btselect.setTag((String)mData.get(position).get("txtname"));
holder.btinsert.setOnClickListener(new Insert());
holder.btinsert.setTag((String)mData.get(position).get("autoid"));
return convertView;
}
}
class Select implements View.OnClickListener{
@Override
public void onClick(View v) {
setTitle(v.getTag().toString());
}
}
class Insert implements View.OnClickListener{
@Override
public void onClick(View v) {
setTitle(v.getTag().toString());
}
}
}你的意思在
MyAdapter adapter = new MyAdapter(this);
setListAdapter(adapter);前面加上setContentView(R.layout.main)嘛?
这样不行,我试了...
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello"
/>
<ListView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="@android:id/list"
/>
</LinearLayout>
main.xml
import java.util.HashMap;
import java.util.Vector;import android.app.ListActivity;
import android.os.Bundle;
import android.widget.ListAdapter;
import android.widget.SimpleAdapter;public class UseListActivity extends ListActivity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Vector<HashMap<String, String>> data = new Vector<HashMap<String, String>>();
HashMap<String, String> map;
map = new HashMap<String, String>();
map.put("m_key", "m_data1");
map.put("s_key", "s_data1");
data.add(map);
map = new HashMap<String, String>();
map.put("m_key", "m_data2");
map.put("s_key", "s_data2");
data.add(map);
ListAdapter adapter = new SimpleAdapter(this, data, android.R.layout.simple_list_item_2,
new String[] {"m_key", "s_key"}, new int[] {android.R.id.text1, android.R.id.text2});
setListAdapter(adapter);
}
}
activity
请问我如果要读取手机里的通讯簿怎么取数据呀?