我正在尝试在一些其他小部件(按钮,editText等)下设置Listview.我不想为listview使用另一个活动.阅读后我发现了
How can I implement a ListView without ListActivity? (use only Activity),我试图做到这一点,最后结束了：
这是我的main.xml：
这是我的main.xml：
<LinearLayout android:id="@+id/relativeLayout1"
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent" android:layout_height="wrap_content"
android:orientation="vertical">
<TextView ...[some code].../>
<EditText ...[some code].../>
<ImageButton ...[some code].../>
<Chronometer ..[some code]..../>
<ListView android:id="@+id/listView1" android:layout_height="wrap_content"
android:layout_width="fill_parent"></ListView>
这是我的onCreate：
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
button1 = (ImageButton) findViewById(R.id.button1);
mChronometer = (Chronometer) findViewById(R.id.chronometer1);
editText1 = (EditText) findViewById(R.id.editText1);
ListView lv = (ListView) findViewById(R.id.listView1);
String[] listword = new String[] {"Hello","World","Foo","Bar"};
lv.setAdapter(new ArrayAdapter<String>(this,R.layout.list_item,listword));
}
这里是list_item.xml
<?xml version="1.0" encoding="utf-8"?> <TextView xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:padding="10dp" android:textSize="16sp" > </TextView>
当我在物理设备中进行调试时,应用程序只需保留所有黑色.如果我注释了涉及列表的onCreate()的行,那么应用程序可以工作(显然没有listview).
任何想法可能是错的？
解决方法
我实际上有一个应用程序与ListView下面的一些TextViews和以上两个按钮,让我抓住我的代码！
这是我的活动与列表视图下面的文本视图和上面的按钮(为了简洁相当有点删除)：
public class BNYDirectoryResults extends Activity{
public static String[] stuff;
ListView list;
BNYAdapter adapter;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.resultscreen);
TextView headDisplay = (TextView)findViewById(R.id.results);
TextView headCount = (TextView)findViewById(R.id.resultsTotal);
TextView headPages = (TextView)findViewById(R.id.pages);
//Set up the results list,see BNYAdapter
list = (ListView)findViewById(R.id.list);
adapter = new BNYAdapter (this,BNYDirectory.ReturnResults);
list.setAdapter(adapter);
//Sets up header information (pages,total results)
//Just some stuff to change the TextViews
//Passes EmployeeID and Phone Number to AND opens the details page
list.setOnItemClickListener(new OnItemClickListener(){
public void onItemClick(AdapterView<?> parent,View view,int position,long id){
String EID = BNYDirectory.ReturnResults[position][0];
String phoneNumber = BNYDirectory.ReturnResults[position][2];
BNYDirectoryTransaction.doDetails(EID,phoneNumber);
Intent i = new Intent(view.getContext(),BNYDirectoryDetails.class);
startActivity(i);
}
});
}
}
这是它的XML文件：
<TextView
android:id="@+id/results"
android:text="Name"
android:gravity="center"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="1" android:textStyle="bold"/>
<TextView
android:id="@+id/resultsTotal"
android:text="Phone"
android:gravity="center"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="1" android:textStyle="bold"/>
<TextView
android:id="@+id/pages"
android:text="AIM"
android:gravity="center"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="1" android:textStyle="bold"/>
</LinearLayout>
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:id="@+id/name"
android:text="Name"
android:gravity="center"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1" />
<TextView
android:id="@+id/phone"
android:text="Phone"
android:gravity="center"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1" />
<TextView
android:id="@+id/aim"
android:text="AIM"
android:gravity="center"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1" />
<TextView
android:id="@+id/dept"
android:text="Dept"
android:gravity="center"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1" />
</LinearLayout>
<ListView
android:id="@+id/list"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="1"/>
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<Button
android:id="@+id/prevButton"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="PrevIoUs"
android:layout_weight="1"/>
<Button
android:id="@+id/nextButton"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Next"
android:layout_weight="1"/>
</LinearLayout>
</LinearLayout>
这是列表的自定义适配器：
import android.app.Activity;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;
public class BNYAdapter extends BaseAdapter {
private Activity activity;
private String[][] results;
private static LayoutInflater inflater=null;
public BNYAdapter(Activity a,String[][]info) {
activity = a;
results = info;
inflater = (LayoutInflater)activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
public int getCount() {
return results.length;
}
public Object getItem(int position) {
return position;
}
public long getItemId(int position) {
return position;
}
public static class ViewHolder{
public TextView name;
public TextView phone;
public TextView aim;
public TextView dept;
}
public View getView(int position,View convertView,ViewGroup parent) {
View vi=convertView;
ViewHolder holder;
if(convertView==null){
vi = inflater.inflate(R.layout.item,null);
holder=new ViewHolder();
holder.name=(TextView)vi.findViewById(R.id.nameItem);
holder.phone=(TextView)vi.findViewById(R.id.phoneItem);
holder.aim=(TextView)vi.findViewById(R.id.aimItem);
holder.dept=(TextView)vi.findViewById(R.id.deptItem);
vi.setTag(holder);
}
else
holder=(ViewHolder)vi.getTag();
holder.name.setText(BNYDirectory.ReturnResults[position][1]);
holder.phone.setText(BNYDirectory.ReturnResults[position][2]);
holder.aim.setText(BNYDirectory.ReturnResults[position][3]);
holder.dept.setText(BNYDirectory.ReturnResults[position][4]);
return vi;
}
}
和所有在一起,使一个页面像
