我在这里很新,所以,我有一个问题..我有一个专门的Listview菜单,我想在文本前放一个图像..这是我的menu2.java ..
public class menu2 extends Activity {
private ListView listApps;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.menu2);
listApps = (ListView) findViewById(R.id.listView1);
String str[] = new String[] {"Messaging", "Phone Dialer", "Simple Math", "Splash", "Exit","Quit Application"};
//final ImageView imageView = (ImageView) findViewById(R.id.);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
android.R.layout.activity_list_item,android.R.id.text1, str);
listApps.setAdapter(adapter);
listApps.setOnItemClickListener(new OnItemClickListener(){
public void onItemClick(AdapterView<?> parent, View aview, int position,
long id){
switch(position){
case 0:
//imageView.setImageResource(R.drawable.ic_launcher);
Intent i1 = new Intent(menu2.this,Messaging.class);
startActivity(i1);
break;
case 1:
Intent i2 = new Intent(menu2.this,PhoneDialer.class);
startActivity(i2);
break;
case 2:
Intent i3 = new Intent(menu2.this,SimpleMath.class);
startActivity(i3);
break;
case 3:
Intent i4 = new Intent(menu2.this,Splash.class);
startActivity(i4);
break;
case 4:
Intent i5 = new Intent(menu2.this,Exit.class);
startActivity(i5);
break;
case 5:
AlertDialog.Builder alt_bld = new AlertDialog.Builder(menu2.this);
alt_bld.setMessage("Are you sure you want to quit application?");
alt_bld.setCancelable(false);
alt_bld.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
finish();
}
})
.setNegativeButton("No", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
// Action for 'NO' Button
dialog.cancel();
}
});
AlertDialog alert = alt_bld.create();
alert.setTitle("Confirmation");
alert.setIcon(R.drawable.ic_launcher);
alert.show();
}
}
});
}
然后我有我的menu2.xml
<?xml version="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/listView1"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
</ListView>
</LinearLayout>
我在左侧放置图像视图,在右侧放置文本视图时遇到问题。
答案 0 :(得分:2)
您是否看到如何使用ListView元素设置布局?您还必须为列表中的每一行创建单独的布局,例如listview_row.xml或您选择命名的任何行。除此之外,您还必须创建一个自定义适配器,它将textView和ImageView绑定到每个ListView行。这使您可以更好地控制列表行。我写了一篇关于这个主题的博客文章。如果您需要更多帮助,请查看并告诉我们。祝你好运!
http://jadebyfield.blogspot.com/2012/10/custom-listview-with-textviews-and.html
答案 1 :(得分:-1)