Krishnabhadra Krishnabhadra - 5 months ago 61
Java Question

Programatically Hide/Show Android Soft Keyboard


Possible Duplicate:

How to close/hide the Android Soft Keyboard?




First thing first I already saw this thread. I tried accepted methods given there..But nothing worked for me..

I have two screens in my app.


  • First one have 2 EditText's - One for username and one for password

  • Second one have one ListView, and an EditText - to filter the
    listView



In my first screen, I want username EditText to have focus on startup and Keyboard should be visible..This is my implementation (simplified by removing unnecessary/unrelated codes)..

app_login.xml



<LinearLayout android:orientation="vertical" android:layout_width="fill_parent"
android:layout_height="wrap_content" android:paddingLeft="20dip"
android:paddingRight="20dip">

<EditText android:id="@+id/username" android:singleLine="true"
android:layout_width="fill_parent"
android:layout_height="wrap_content" android:hint="Username"
android:imeOptions="actionDone" android:inputType="text"
android:maxLines="1"/>

<EditText android:id="@+id/password" android:password="true"
android:singleLine="true"
android:layout_width="fill_parent" android:layout_height="wrap_content"
android:hint="Password" />

</LinearLayout>


AppLogin.java



class AppLogin extends Activity{
private EditText mUserNameEdit = null;
private EditText mPasswordEdit = null;

@Override
public void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.app_login);

mUserNameEdit = (EditText) findViewById(R.id.username);
mPasswordEdit = (EditText) findViewById(R.id.password);

/* code to show keyboard on startup.this code is not working.*/
InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
imm.showSoftInput(mUserNameEdit, InputMethodManager.SHOW_IMPLICIT);

}//End of onCreate()
}


Well, the keyboard is not showing at start up. And my design badly require a keyboard there..

Now on to second page..I already said I have a listView and EditText there..I want my keyboard to be hidden on start up only to appear when user touches the editText..Can you believe it? whatever I tried soft Keyboard is showing when I load the activity..I am not able to hide it..

app_list_view.xml



<LinearLayout android:layout_width="fill_parent" android:layout_height="fill_parent"
android:orientation="vertical" >
<EditText android:id="@+id/filter_edittext"
android:layout_width="fill_parent" android:layout_height="wrap_content"
android:hint="Search" android:inputType="text" android:maxLines="1"/>
<ListView android:id="@id/android:list" android:layout_height="fill_parent"
android:layout_weight="1.0" android:layout_width="fill_parent"
android:focusable="true" android:descendantFocusability="beforeDescendants"/>
</LinearLayout>


AppList.java



public class MyListActivity extends ListActivity{
private EditText mfilterEditText;

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.app_list_view);

mFilterEditText = (EditText) findViewById(R.id.filter_edittext);
InputMethodManager imm = InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(mFilterEditText.getWindowToken(), 0);
}
}


To simplify


  1. On Login Page (first Page) I want my keyboard to be visible on
    start up..

  2. On SecondPage I want keyboard to be hidden first, only to appear
    when user touches editText



And my problem is I am getting exact opposite on both occasion...Hope someone faced this issue before..BTW I am testing on simulator and HTC Desire phone..

FINAL OUTCOME



Well I got it working, with the help of all friends here.

1. To Show keyboard on startup

Two answers worked for me. One provided by @CapDroid, which is to use a handler and post it delayed..

mUserNameEdit.postDelayed(new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
InputMethodManager keyboard = (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
keyboard.showSoftInput(mUserNameEdit, 0);
}
},50);


Second answers is provided by @Dyarish, Infact he linked to another SO thread, which I havent seen before. But
the funny thing is that, this solution is given in the thread which I referenced at start. And I haven't tried
it out because it had zero votes in a thread where all other posts have plenty of votes..Height of foolishness..

getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE);


For me the second solution looked neat, so I decided to stick with it..But first one certainly works.
Also @Dyarish's answer contain a clever hack of using a ScrollView below EditText to give EditText the focus..But I haven't tried it, but it should work. Not neat though..

2. To hide keyboard at activity start

Only one answer worked for me, which is provided by @Dyarish. And the solution is to use
focusableInTouchMode settings in xml for the layout containing the editText's. This did the trick

<LinearLayout android:layout_width="fill_parent" android:layout_height="fill_parent"
android:orientation="vertical" android:focusableInTouchMode="true">
<EditText android:id="@+id/filter_edittext"
android:layout_width="fill_parent" android:layout_height="wrap_content"
android:hint="Search" android:inputType="text" android:maxLines="1"/>
<ListView android:id="@id/android:list" android:layout_height="fill_parent"
android:layout_weight="1.0" android:layout_width="fill_parent"
android:focusable="true" android:descendantFocusability="beforeDescendants"/>
</LinearLayout>


Anyway I end up using Dyarish's answer in both cases. So I am awarding the boundy to him..Thanks all other friends
who tried to help me..

Answer

Adding this to your code android:focusableInTouchMode="true" will make sure that your keypad doesn't appear on startup for your edittext box. You want to add this line to your linear layout that contains the EditTextBox. You should be able to play with this to solve both your problems. I have tested this. Simple solution.

ie: In your app_list_view.xml file

<LinearLayout 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent" 
    android:orientation="vertical" 
    android:focusableInTouchMode="true">
    <EditText 
        android:id="@+id/filter_edittext"       
        android:layout_width="fill_parent" 
        android:layout_height="wrap_content" 
        android:hint="Search" 
        android:inputType="text" 
        android:maxLines="1"/>
    <ListView 
        android:id="@id/android:list" 
        android:layout_height="fill_parent"
        android:layout_weight="1.0" 
        android:layout_width="fill_parent" 
        android:focusable="true" 
        android:descendantFocusability="beforeDescendants"/>
</LinearLayout> 

------------------ EDIT: To Make keyboard appear on startup -----------------------

This is to make they Keyboard appear on the username edittextbox on startup. All I've done is added an empty Scrollview to the bottom of the .xml file, this puts the first edittext into focus and pops up the keyboard. I admit this is a hack, but I am assuming you just want this to work. I've tested it, and it works fine.

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:orientation="vertical" 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:paddingLeft="20dip"  
    android:paddingRight="20dip">
    <EditText 
        android:id="@+id/userName" 
        android:singleLine="true" 
        android:layout_width="fill_parent"  
        android:layout_height="wrap_content" 
        android:hint="Username"  
        android:imeOptions="actionDone" 
        android:inputType="text"
        android:maxLines="1"
       />
    <EditText 
        android:id="@+id/password" 
        android:password="true" 
        android:singleLine="true"  
        android:layout_width="fill_parent" 
        android:layout_height="wrap_content" 
        android:hint="Password" />
    <ScrollView
        android:id="@+id/ScrollView01"  
        android:layout_height="fill_parent"   
        android:layout_width="fill_parent"> 
    </ScrollView>
</LinearLayout>

If you are looking for a more eloquent solution, I've found this question which might help you out, it is not as simple as the solution above but probably a better solution. I haven't tested it but it apparently works. I think it is similar to the solution you've tried which didn't work for you though.

Hope this is what you are looking for.

Cheers!