Develop Reference

How to always show soft keyboard and do not let it be closed?

I want to know 2 things
how to always show soft keyboard and do not let it be closed ( even when back or OK button was pressed ) ?
and how can I get an input from it?
I have already tried this code:
EditText yourEditText= (EditText) findViewById(R.id.ed);
InputMethodManager imm = (InputMethodManager) getSystemService(INPUT_METHOD_SERVICE);
with these variants:
imm.showSoftInput(yourEditText, InputMethodManager.SHOW_IMPLICIT);
imm.toggleSoftInputFromWindow( yourEditText.getApplicationWindowToken(), InputMethodManager.SHOW_FORCED, 0);
imm.showSoftInput(yourEditText, InputMethodManager.SHOW_IMPLICIT);

Use android:windowSoftInputMode="stateAlwaysVisible" in to AndroidManifest.xml file
Like this:
<activity android:name=".YourActivity"
android:label="#string/app_name"
android:windowSoftInputMode="stateAlwaysVisible" /> // OR stateVisible
If that activity having EditText so when ever Activity will start
your Keyboard automatically open
If you want to still open Keyboad after use done any operation then do this via programetically
InputMethodManager imm =
(InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
imm.toggleSoftInputFromWindow(
linearLayout.getApplicationWindowToken(),
InputMethodManager.SHOW_FORCED, 0);
OR
To Show Soft Keyboard
InputMethodManager imm = (InputMethodManager)
getSystemService(Context.INPUT_METHOD_SERVICE);
imm.showSoftInput(EDITABLE_VIEW,
InputMethodManager.SHOW_IMPLICIT);
OR
EDITABLE_VIEW can be any view which has focus on screen like
mEditText = (EditText) findViewById(R.id.editText);
InputMethodManager imm = (InputMethodManager)
getSystemService(Context.INPUT_METHOD_SERVICE);
imm.showSoftInput(mEditText ,
InputMethodManager.SHOW_IMPLICIT);
OR
((InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE)).showSoftInputFromInputMethod(editText.getWindowToken(), 0);
Documentation

How to open a keyboard with lossing focus from parent

I have a problem and i not find answer in google.
I open a keyboard with button:
private void openKeyboard() {
keyboardButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
InputMethodManager imm = (InputMethodManager) getActivity()
.getSystemService(Context.INPUT_METHOD_SERVICE);
imm.toggleSoftInput(InputMethodManager.SHOW_FORCED, 3);
}
});
}
But my layout going crap after keyboard is visible. How to open it with lost any parent from parent?

try with this snippet..
InputMethodManager inputMethodManager =
(InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
inputMethodManager.toggleSoftInputFromWindow(
linearLayout.getApplicationWindowToken(),
InputMethodManager.SHOW_FORCED, 0);
or try this
In your manifest file, try adding the following to the <activity> that you want to show the keyboard when the activity starts:
android:windowSoftInputMode="stateVisible"or "stateAlwaysVisible"
or try this too..
youredittext.requestFocus();
youredittext.setFocusableInTouchMode(true);
InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
imm.showSoftInput(youredittext, InputMethodManager.SHOW_FORCED);

Keyboard is not getting hidden while my app is moving in background in Marshmallow

Keyboard is not getting hidden while my app is moving in background in Marshmallow and some android OS. Here's my code
InputMethodManager imm = (InputMethodManager)
getSystemService(Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromInputMethod(getWindow().getCurrentFocus()
.getWindowToken(), InputMethodManager.HIDE_NOT_ALWAYS);

try this
if(getCurrentFocus() != null) {
InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(INPUT_METHOD_SERVICE);
inputMethodManager.hideSoftInputFromWindow(getCurrentFocus().getWindowToken(), 0);
}

showing softkeyboard in android on landscape orientation

EditText textView = (EditText ) findViewById(R.id.editText1);
textView.requestFocus();
InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
imm.showSoftInput(textView, InputMethodManager.SHOW_IMPLICIT);
I use this code to open soft keyboard automatically .
it works fine in normal situation but when I change it to landscape orientation android:screenOrientation="landscape"
in manifest, it stops working.
what's wrong with it?

You need to show it forcefully.
InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
imm.toggleSoftInput(InputMethodManager.SHOW_FORCED,InputMethodManager.HIDE_IMPLICIT_ONLY);
imm.showSoftInput(textView, InputMethodManager.SHOW_FORCED);

SoftInputMode cannot be set to hidden

I created an Activity with a Dialog theme and it has an EditText.
I don't want to show soft input on every activity so I used the following code on that activity:
EditText editTextData=GetView(R.id.txtData);
editTextPin.requestFocus();
InputMethodManager mgr = (InputMethodManager) getSystemService(INPUT_METHOD_SERVICE);
mgr.showSoftInput(editTextData, InputMethodManager.SHOW_IMPLICIT);
This makes the input keyboard visible.
After the input, I tried to make it hidden with this code:
InputMethodManager mgr = (InputMethodManager) getSystemService(INPUT_METHOD_SERVICE);
mgr.hideSoftInputFromInputMethod(editTextData.getWindowToken(), InputMethodManager.HIDE_NOT_ALWAYS);
It remains visible. What else should I call?

try ..
mgr.hideSoftInputFromInputMethod(editTextData.getWindowToken(),
1);
or
try
InputMethodManager mgr = (InputMethodManager)getSystemService(
Context.INPUT_METHOD_SERVICE); mgr.hideSoftInputFromWindow(editTextData.getWindowToken(), 0);

You can use below function to hide the keyboard..
private void hideSoftKeyboard(Activity act) {
InputMethodManager inputMethodManager = (InputMethodManager) act.getSystemService(Context.INPUT_METHOD_SERVICE);
inputMethodManager.hideSoftInputFromWindow(act.getCurrentFocus().getWindowToken(), 0);
}
Hope it will help you..