1
我見過很多次這個問題,我認爲這不是很難解決;仍然我已經嘗試了幾個小時,不能得到它的工作原理。Android:爲什麼我的EditText字段失去焦點?
簡單的問題:我在列表視圖中有2個EditText,當我觸摸它們的字段時,它們都立即鬆開焦點。
必須是一些層次結構的東西。其實我可以用adjustpan
屬性修復它,但是當softKeyboard打開時,我的listView不再滾動。
這裏是我的代碼:
package com.android.activity;
import android.content.Context;
import android.database.Cursor;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.CursorAdapter;
import android.widget.EditText;
import android.widget.TextView;
public class NotesCursorAdapter extends CursorAdapter{
private Context context;
// private Cursor cursor;
private int addNoteTopPosition;
private int addNoteBottomPosition;
private LayoutInflater inflater;
private boolean deleteMode = false;
private static final int TYPE_ITEM = 0;
private static final int TYPE_ADD_NOTE_BOTTOM = 1;
private static final int TYPE_ADD_NOTE_TOP = 2;
private static final int TYPE_MAX_COUNT = TYPE_ADD_NOTE_TOP + 1;
public NotesCursorAdapter (Context context, Cursor cursor, int flag, boolean enableDelete){
super(context, cursor);
this.context = context;
addNoteTopPosition = 0;
addNoteBottomPosition = cursor.getCount()+1;
inflater = LayoutInflater.from(this.context);
deleteMode = enableDelete;
}
@Override
public int getCount() {
return super.getCount() + 2;
}
@Override
public View getView(int position, View convertView, ViewGroup parent){
ViewHolder holder = null;
int type = getItemViewType(position);
if (convertView == null) {
holder = new ViewHolder();
switch (type) {
case TYPE_ADD_NOTE_TOP:
convertView = inflater.inflate(R.layout.add_note_top, null);
holder.view = (EditText)convertView.findViewById(R.id.add_note_top_id);
break;
case TYPE_ITEM:
convertView = inflater.inflate(R.layout.row_note, null);
holder.delete = (Button)convertView.findViewById(R.id.delete);
if (deleteMode){
holder.delete.setVisibility(View.VISIBLE);
}else{
holder.delete.setVisibility(View.GONE);
}
holder.delete.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
}
});
holder.view = (TextView)convertView.findViewById(R.id.note);
getCursor().moveToPosition(position - 1);
((TextView) holder.view).setText(getCursor().getString(getCursor().getColumnIndex("content_note")));
break;
case TYPE_ADD_NOTE_BOTTOM:
convertView = inflater.inflate(R.layout.add_note_bottom, null);
holder.view = (EditText)convertView.findViewById(R.id.add_note_bottom_id);
break;
}
convertView.setTag(holder);
} else {
holder = (ViewHolder)convertView.getTag();
}
return convertView;
}
@Override
public int getItemViewType(int position) {
int type;
if (position == addNoteTopPosition){
type = TYPE_ADD_NOTE_TOP;
} else if (position == addNoteBottomPosition){
type = TYPE_ADD_NOTE_BOTTOM;
}else {
type = TYPE_ITEM;
}
return type;
}
@Override
public int getViewTypeCount() {
return TYPE_MAX_COUNT;
}
@Override
public long getItemId(int position) {
return position;
}
public static class ViewHolder {
public View delete;
public View view;
}
@Override
public void bindView(View view, Context context, Cursor cursor) {
}
@Override
public View newView(Context context, Cursor cursor, ViewGroup parent) {
return null;
}
}
下面是XML文件:
的main.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/rootLayout"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@drawable/background_diary_big"
android:focusable="false"
android:orientation="vertical" >
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="60dp"
android:layout_gravity="right"
android:gravity="fill_vertical"
android:orientation="horizontal"
android:paddingRight="10dp"
android:paddingTop="10dp" >
<LinearLayout
android:id="@+id/linearLayout1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="1"
android:orientation="vertical" >
<Button
android:id="@+id/calendar"
android:layout_width="50dp"
android:layout_height="50dp"
android:layout_gravity="right"
android:background="@drawable/calendar_up" />
</LinearLayout>
<TextView
android:id="@+id/currentDay"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_gravity="center_vertical|center_horizontal"
android:layout_weight="0.5"
android:gravity="center_vertical|center_horizontal"
android:textAppearance="?android:attr/textAppearanceLarge" />
<LinearLayout
android:id="@+id/linearLayout2"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="1"
android:gravity="center_vertical|center_horizontal"
android:orientation="vertical" >
<Button
android:id="@+id/done"
android:layout_width="50dp"
android:layout_height="50dp"
android:background="@drawable/pen_blue_big" />
</LinearLayout>
</LinearLayout>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:focusable="false"
android:orientation="vertical" >
<ListView
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/main_list"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_marginLeft="10dip"
android:layout_marginRight="10dip"
android:cacheColorHint="#00000000"
android:descendantFocusability="beforeDescendants" >
</ListView>
</LinearLayout>
</LinearLayout>
add_note_top.xml:
<?xml version="1.0" encoding="utf-8"?>
<EditText xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/add_note_top_id"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#00000000"
android:hint="@string/add_note"
android:textColor="#000000" >
</EditText>
add_note_bottom.xml :
<EditText
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/add_note_bottom_id"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:hint="@string/add_note"
android:background="#00000000"
android:textColor="#000000" >
</EditText>
row_note.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/layoutContainer"
android:layout_width="fill_parent"
android:layout_height="60dp"
android:layout_gravity="right"
android:gravity="fill_vertical"
android:orientation="horizontal"
android:paddingRight="10dp"
android:paddingTop="10dp" >
<Button
android:id="@+id/delete"
android:layout_width="21dp"
android:layout_height="22dp"
android:background="@drawable/sens_interdit" />
<TextView
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/note"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:duplicateParentState="true"
android:focusable="false"
android:textColor="#000000" >
</TextView>
</LinearLayout>
我想我把重要的,如果你們需要一些更喜歡活動代碼或別的什麼,只是問。
感謝您的閱讀。
你的背景和文本顏色相同。我想知道這是否是問題。 – Siddharth 2012-06-01 02:31:56
那麼這是一個好點啊哈。但我找到了問題,我忘記了我的stackoverflow後。只是讓人們知道,這是listview-edittext的常見問題。在adjustresize模式下,如果將焦點放在編輯文本上,由於softkeyboard幽靈的重新調整,它將失去焦點。所以我發現了一個不太好看的解決方法,它在鍵盤出現後將焦點放在該editext上;具體來說,調用每個軟鍵盤上調用的活動的監聽器上的edittext.requestfocus()會出現。仍然您的評論是有用的,注意到一個錯誤,謝謝=) – 2012-06-01 04:24:33