EditText上没有显示键盘 [英] EditText not showing a keyboard
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问题描述
我有一个加载带有RelativeLayout的一个EditText和一个按钮上一个ListView一个FragmentActivity。我似乎无法获得键盘中的任何方法来显示。当我把它或将焦点触摸到它，什么都不会发生。当我要求自动对焦，没有任何反应。我如何获得键盘现身？这难道不应该是全自动的吗？我想模拟GTALK的聊天输入。
activity_contact_chat.xml：
＆LT;？XML版本=1.0编码=UTF-8＆GT？;
＆LT;的RelativeLayout的xmlns：机器人=http://schemas.android.com/apk/res/android
机器人：ID =@ + ID / contact_detail_container
机器人：layout_width =match_parent
机器人：layout_height =match_parent
机器人：descendantFocusability =blocksDescendants
机器人：方向=横向＆GT; ＆LT;按钮
机器人：ID =@ + ID / details_record_button
机器人：layout_width =WRAP_CONTENT
机器人：layout_height =WRAP_CONTENT
机器人：layout_alignParentBottom =真
机器人：layout_alignParentRight =真
机器人：layout_alignTop =@ + ID / chat_message_input
机器人：文字=发送/＆GT; ＆LT;的EditText
机器人：ID =@ + ID / chat_message_input
机器人：layout_width =WRAP_CONTENT
机器人：layout_height =WRAP_CONTENT
机器人：layout_alignParentBottom =真
机器人：layout_alignParentLeft =真
机器人：layout_toLeftOf =@ + ID / details_record_button
机器人：EMS =10
机器人：重力=顶|左
机器人：提示=@字符串/ message_hint
机器人：行=1
机器人：MAXLINES =10
机器人：paddingRight =10dp
机器人：paddingTop =10dp
机器人：滚动条=垂直＆GT; ＆LT; /＆的EditText GT; ＆LT; ListView控件
机器人：ID =@ + ID / messages_list
机器人：layout_width =match_parent
机器人：layout_height =match_parent
机器人：layout_above =@ + ID / chat_message_input
机器人：layout_alignParentLeft =真
机器人：layout_alignParentTop =真
机器人：背景=＃000000＆GT; ＆LT; /＆的ListView GT;＆LT; / RelativeLayout的＆GT;
ContactChatFragment：
进口android.database.Cursor;
进口android.net.Uri;
进口android.os.Bundle;
进口android.support.v4.app.Fragment;
进口android.support.v4.app.LoaderManager;
进口android.support.v4.content.CursorLoader;
进口android.support.v4.content.Loader;
进口android.view.LayoutInflater;
进口android.view.View;
进口android.view.View.OnClickListener;
进口android.view.ViewGroup;
进口android.widget.Button;
进口android.widget.EditText;
进口android.widget.ListView;
进口android.widget.TextView;
进口android.widget.Toast;公共类ContactChatFragment扩展片段实现LoaderManager.LoaderCallbacks＆LT;＆光标GT; { ListView控件给messageManager;
龙CONTACT_ID;
串contact_UUID，CONTACT_NAME; 私有静态最终诠释CONTACT_CHAT_LOADER = 0×11;
MessageListAdapter适配器; 私有静态最后弦乐STATE_ACTIVATED_POSITION =activated_position;
私人INT mActivatedPosition = ListView.INVALID_POSITION; 公共静态最后弦乐EXTRA_CONTACTID =ITEM_ID;
串contact_rowID;
@覆盖
公共无效的onCreate（捆绑savedInstances）{
super.onCreate（savedInstances）; 如果（getArguments（）。的containsKey（EXTRA_CONTACTID））{
contact_rowID = getArguments（）的getString（EXTRA_CONTACTID）。
//让我们接触
串投影[] = {DBHelper.CONTACTS_ROWID，DBHelper.CONTACTS_UUID，DBHelper.CONTACTS_NAME，DBHelper.CONTACTS_PUBLIC_KEY};
光标contactCursor = getActivity（）getContentResolver（）查询（Uri.withAppendedPath（ContactProvider.CONTENT_URI，将String.valueOf（contact_rowID）），投影，NULL，NULL，NULL）;
如果（contactCursor.moveToFirst（））{
CONTACT_ID = contactCursor.getLong（contactCursor.getColumnIndex（DBHelper.CONTACTS_ROWID））;
contact_UUID = contactCursor.getString（contactCursor.getColumnIndex（DBHelper.CONTACTS_UUID））;
CONTACT_NAME = contactCursor.getString（contactCursor.getColumnIndex（DBHelper.CONTACTS_NAME））;
}
} 适配器=新MessageListAdapter（getActivity（），NULL，0）;
} @覆盖
公共查看onCreateView（LayoutInflater充气器，容器的ViewGroup，捆绑savedInstanceState）{
查看rootView = inflater.inflate（R.layout.activity_contact_chat，集装箱，FALSE）;
给messageManager =（ListView控件）rootView.findViewById（R.id.messages_list）; messageList.setAdapter（适配器）;
。getLoaderManager（）initLoader（CONTACT_CHAT_LOADER，空，这一点）; / *
TextView的空=新的TextView（getActivity（））;
空=（TextView中）messageList.getEmptyView（）;
empty.setText（R.string.chat_no_messages）;
empty.setVisibility（View.GONE）;
（（ViewGroup中）messageList.getParent（））addView（空）。
messageList.setEmptyView（空）;
* / 的EditText message_input_text =（EditText上）rootView.findViewById（R.id.chat_message_input）;
message_input_text.clearFocus（）; 按钮message_input_button =（按钮）rootView.findViewById（R.id.details_record_button）;
message_input_button.setOnClickListener（新OnClickListener（）{
公共无效的onClick（视图v）{
Toast.makeText（getActivity（），嗨！，Toast.LENGTH_SHORT）.show（）;
}
}）; 返回rootView;
} @覆盖
公共无效的onSaveInstanceState（捆绑outState）{
super.onSaveInstanceState（outState）;
如果（mActivatedPosition！= ListView.INVALID_POSITION）{
//序列化和持久化启动项目的位置。
outState.putInt（STATE_ACTIVATED_POSITION，mActivatedPosition）;
}
} @覆盖
公共装载机＆LT;＆光标GT; onCreateLoader（INT ID，捆绑参数）{
的String [] =投影{DBHelper.MESSAGES_ROWID，DBHelper.MESSAGES_CONTENT，DBHelper.MESSAGES_CONTENT_LOCATION，DBHelper.MESSAGES_LOCATION，DBHelper.MESSAGES_READ_DATE，DBHelper.MESSAGES_UUID_FROM，DBHelper.MESSAGES_UUID_TO};
CursorLoader cursorLoader =新CursorLoader（getActivity（），MessageProvider.CONTENT_URI，投影，NULL，NULL，NULL）;
返回cursorLoader;
}
@覆盖
公共无效onLoadFinished（装载机＆LT;＆光标GT;装载机，光标光标）{
adapter.swapCursor（光标）;
}
@覆盖
公共无效onLoaderReset（装载机＆LT;＆光标GT;装载机）{
adapter.swapCursor（NULL）;
}}
解决方案
只是删除
的android：descendantFocusability =blocksDescendants
在主RelativeLayout的。您将获得在Edittext.BlockDescendants重点将prevent从得到焦点的子布局。检查<一href=\"http://developer.android.com/reference/android/view/ViewGroup.html#attr_android:descendantFocusability\">http://developer.android.com/reference/android/view/ViewGroup.html#attr_android:descendantFocusability
I have a FragmentActivity which loads a RelativeLayout with a ListView above an EditText and a Button. I cannot seem to get the keyboard to show up in any method. When I touch it or set focus to it, nothing happens. When I automatically request focus, nothing happens. How do I get the keyboard to show up? Isn't this supposed to be automatic? I'd like to simulate GTALK's chat input.
activity_contact_chat.xml:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/contact_detail_container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:descendantFocusability="blocksDescendants"
android:orientation="horizontal" >
<Button
android:id="@+id/details_record_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:layout_alignTop="@+id/chat_message_input"
android:text="Send" />
<EditText
android:id="@+id/chat_message_input"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_toLeftOf="@+id/details_record_button"
android:ems="10"
android:gravity="top|left"
android:hint="@string/message_hint"
android:lines="1"
android:maxLines="10"
android:paddingRight="10dp"
android:paddingTop="10dp"
android:scrollbars="vertical" >
</EditText>
<ListView
android:id="@+id/messages_list"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="@+id/chat_message_input"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:background="#000000" >
</ListView>
</RelativeLayout>
ContactChatFragment:
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.LoaderManager;
import android.support.v4.content.CursorLoader;
import android.support.v4.content.Loader;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
public class ContactChatFragment extends Fragment implements LoaderManager.LoaderCallbacks<Cursor>{
ListView messageList;
Long contact_id;
String contact_UUID, contact_name;
private static final int CONTACT_CHAT_LOADER = 0x11;
MessageListAdapter adapter;
private static final String STATE_ACTIVATED_POSITION = "activated_position";
private int mActivatedPosition = ListView.INVALID_POSITION;
public static final String EXTRA_CONTACTID = "item_id";
String contact_rowID;
@Override
public void onCreate(Bundle savedInstances) {
super.onCreate(savedInstances);
if (getArguments().containsKey(EXTRA_CONTACTID)) {
contact_rowID = getArguments().getString(EXTRA_CONTACTID);
//Let's get the contact
String projection[] = { DBHelper.CONTACTS_ROWID, DBHelper.CONTACTS_UUID, DBHelper.CONTACTS_NAME, DBHelper.CONTACTS_PUBLIC_KEY };
Cursor contactCursor = getActivity().getContentResolver().query(Uri.withAppendedPath(ContactProvider.CONTENT_URI, String.valueOf(contact_rowID)),projection, null, null, null);
if (contactCursor.moveToFirst()) {
contact_id = contactCursor.getLong(contactCursor.getColumnIndex(DBHelper.CONTACTS_ROWID));
contact_UUID = contactCursor.getString(contactCursor.getColumnIndex(DBHelper.CONTACTS_UUID));
contact_name = contactCursor.getString(contactCursor.getColumnIndex(DBHelper.CONTACTS_NAME));
}
}
adapter = new MessageListAdapter(getActivity(), null, 0);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.activity_contact_chat, container, false);
messageList = (ListView) rootView.findViewById(R.id.messages_list);
messageList.setAdapter(adapter);
getLoaderManager().initLoader(CONTACT_CHAT_LOADER, null, this);
/*
TextView empty = new TextView(getActivity());
empty = (TextView) messageList.getEmptyView();
empty.setText(R.string.chat_no_messages);
empty.setVisibility(View.GONE);
((ViewGroup) messageList.getParent()).addView(empty);
messageList.setEmptyView(empty);
*/
EditText message_input_text = (EditText) rootView.findViewById(R.id.chat_message_input);
message_input_text.clearFocus();
Button message_input_button = (Button) rootView.findViewById(R.id.details_record_button);
message_input_button.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
Toast.makeText(getActivity(), "Hi!",Toast.LENGTH_SHORT).show();
}
});
return rootView;
}
@Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
if (mActivatedPosition != ListView.INVALID_POSITION) {
// Serialize and persist the activated item position.
outState.putInt(STATE_ACTIVATED_POSITION, mActivatedPosition);
}
}
@Override
public Loader<Cursor> onCreateLoader(int id, Bundle args) {
String[] projection = {DBHelper.MESSAGES_ROWID, DBHelper.MESSAGES_CONTENT, DBHelper.MESSAGES_CONTENT_LOCATION, DBHelper.MESSAGES_LOCATION, DBHelper.MESSAGES_READ_DATE, DBHelper.MESSAGES_UUID_FROM, DBHelper.MESSAGES_UUID_TO};
CursorLoader cursorLoader = new CursorLoader(getActivity(), MessageProvider.CONTENT_URI, projection, null, null, null);
return cursorLoader;
}
@Override
public void onLoadFinished(Loader<Cursor> loader, Cursor cursor) {
adapter.swapCursor(cursor);
}
@Override
public void onLoaderReset(Loader<Cursor> loader) {
adapter.swapCursor(null);
}
}
解决方案
Just remove
android:descendantFocusability="blocksDescendants"
in main RelativeLayout. You will get the focus in the Edittext.BlockDescendants will prevent the child layouts from getting focus. Check http://developer.android.com/reference/android/view/ViewGroup.html#attr_android:descendantFocusability
这篇关于EditText上没有显示键盘的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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