我看 the ListView API 我看到了方法:
addHeaderView(View v)
我想做的是在列表上方有一个布局,这可能吗?
我尝试做类似的事情:
EditText et=new EditText(this);
et.setLayoutParams(new Gallery.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));
et.setInputType(InputType.TYPE_CLASS_TEXT);
addHeaderView(et); //makes app crash
我也试过了
setContentView(R.layout.tryview);
但它也会导致应用崩溃。
非常感谢您的帮助!
编辑:这个类的代码是:
public class GroupsActivity extends ListActivity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
String your_array_contents[] = {"a","ab","c"};
setListAdapter(new ArrayAdapter<String>(this, R.layout.groups_layout, your_array_contents));
EditText et=new EditText(this);
et.setLayoutParams(new Gallery.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));
et.setInputType(InputType.TYPE_CLASS_TEXT);
ListView lv = getListView();
lv.setTextFilterEnabled(true);
lv.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
lv.setAdapter(new ArrayAdapter<String>(GroupsActivity.this,
android.R.layout.simple_list_item_multiple_choice, your_array_contents));
lv.addHeaderView(et); //makes app crash
lv.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// When clicked, show a toast with the TextView text
// Toast.makeText(getApplicationContext(), ((TextView) view).getText(),
//Toast.LENGTH_SHORT).show();
}
});
}
}
最佳答案
您可以通过多次调用 addHeaderView() 添加任意数量的标题。您必须在将适配器设置为 ListView 之前执行此操作。
是的,您可以像这样添加标题:
LayoutInflater inflater = getLayoutInflater();
ViewGroup header = (ViewGroup)inflater.inflate(R.layout.header, myListView, false);
myListView.addHeaderView(header, null, false);
关于android - 使用 ListView : How to add a header view?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/7978359/