Android如何在ListView中使EditText可编辑
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【中文标题】Android如何在ListView中使EditText可编辑【英文标题】:Android how to make EditText editable inside a ListView 【发布时间】:2012-02-19 09:54:18 【问题描述】:我有一个ListView
,每个项目中都有编辑文本,我想知道如何使EditText
可编辑。如果我将android:windowSoftInputMode="adjustPan"
设置到清单中似乎可以正常工作,但仅限于一些设备。在某些设备上,软键盘会覆盖编辑文本。
另一方面,如果我不将android:windowSoftInputMode="adjustPan"
放入清单中,则在显示软键盘后EditText
会失去焦点,我必须多次触摸EditText
才能使其被选中并且可以写在里面。
请帮我解决这个问题。
注意:我看过这篇文章:Focusable EditText inside ListView,但没有任何帮助,除此之外我还有其他问题
【问题讨论】:
【参考方案1】:在尝试使用EditTexts
在ListView
内创建接口失败后,我只能对您说“不要!”。当你有足够的项目需要滚动ListView
,焦点会在这里和那里跳跃,你必须保存EditText
的状态等等,你会遇到更多麻烦。似乎一般的想法是在ListView
中使用EditText
是不值得的。
经过大量研究,我可以建议以下对我有帮助的方法:
我继承了ListView
并重写了 layoutChildren 方法,在其中我执行以下操作:
@Override
protected void layoutChildren()
super.layoutChildren();
final EditText tv = (EditText)this.getTag();
if (tv != null)
Log.d("RUN", "posting delayed");
this.post(new Runnable()
@Override
public void run()
Log.d("RUN", "requesting focus in runnable");
tv.requestFocusFromTouch();
tv.dispatchTouchEvent(MotionEvent.obtain(SystemClock.uptimeMillis(), SystemClock.uptimeMillis(), MotionEvent.ACTION_DOWN , tv.getWidth(), tv.getHeight(), 0));
tv.dispatchTouchEvent(MotionEvent.obtain(SystemClock.uptimeMillis(), SystemClock.uptimeMillis(), MotionEvent.ACTION_UP , tv.getWidth(), tv.getHeight(), 0));
);
当我知道哪个EditText
应该获得焦点时(当我的适配器getView 被调用时我知道这一点)我将这个特定的EditText
设置为ListView
的标签。然后 ListView 自行布局,我的帖子线程已排队。它运行并请求焦点,但是由于在我的情况下还不够,我还生成了两个 MotionEvents
来简单地模拟点击。显然这足以让软键盘出现。
这背后的原因在此处的答案中进行了解释:
Android Actionbar Tabs and Keyboard Focus
【讨论】:
【参考方案2】:我为此做了一个解决方法..也许会帮助某人
public class EditTextListAdapter extends BaseAdapter
/* notes list */
private ArrayList<SomeData> mSomeData = null;
/* layout inflater instance */
private LayoutInflater mInflater;
/* activity context */
private Context mContext;
/* ensure that this constant is greater than the maximum list size */
private static final int DEFAULT_ID_VALUE = -1;
/* used to keep the note edit text row id within the list */
private int mNoteId = DEFAULT_ID_VALUE;
/**
* EditTextListAdapter adapter class constructor
*
* @param context activity context
*/
public FirstTimesListAdapter(Context context)
/* get a layout inflater instance */
mInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
/* load the data */
mSomeData = SomeData.instance().getData();
/* keep the context */
mContext = context;
/**
* Returns the selected item
*
* @return selected item
*/
public int getSelectedItem()
return mSelectedItem;
public int getCount()
return mSomeData.size();
public Object getItem(int i)
return mSomeData.get(i);
public long getItemId(int i)
return i;
public View getView(final int index, View recycledView, ViewGroup viewGroup)
ViewHolder viewHolder;
if (recycledView == null)
/* inflate the list item */
recycledView = mInflater.inflate(R.layout.listview_item_with_edit_text, viewGroup, false);
/* get link to the view holder views */
viewHolder = new ViewHolder();
viewHolder.note = (EditText) recycledView.findViewById(R.id.first_times_note);
recycledView.setTag(viewHolder);
else
/* reuse the same views we load the first time */
viewHolder = (ViewHolder) recycledView.getTag();
/* display some notes */
viewHolder.note.setText(mSomeData.getNotes());
/* if the last id is set, the edit text from this list item was pressed */
if (mNoteId == index)
/* make the edit text recive focus */
viewHolder.note.requestFocusFromTouch();
/* make the edit text's cursor to appear at the end of the text */
viewHolder.note.setSelection(viewHolder.note.getText().length());
/* reset the last id to default value */
mNoteId = DEFAULT_ID_VALUE;
/* set a touch listener on the edit text just to record the index of the edit text that was pressed */
viewHolder.note.setOnTouchListener(new View.OnTouchListener()
public boolean onTouch(View view, MotionEvent motionEvent)
if (motionEvent.getAction() == MotionEvent.ACTION_UP)
/* get the index of the touched list item */
mNoteId = index;
return false;
);
return recycledView;
static class ViewHolder
/* note input */
EditText note;
【讨论】:
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