I made this "custom keyboard" by following the wonderful outline in this link AND NOT USING ECLIPSE. I used Android Studio (AS) 1.1.0.
Here's a screenshot from my device:
The only problem is that the procedure requires changing settings for Language and Input
AND ALSO replaces the keyboard FOR ALL APPS. I don't want that. I just want MY app to change the keyboard for ITSELF and then revert to the previous keyboard as soon as my app goes off screen, otherwise I'm going to be a huge pain in users' butts. Rather than do that, I may as well just add buttons to perform the keypresses I hoped to invoke via a custom keyboard. (It's not gruesome; user just has to pull down the notification bar and select choose input method, but still too intrusive for most users.)
Here's the structure:
The keypad is altered in qwerty.xml
by doing lots of this:
<Keyboard xmlns:android="http://schemas.android.com/apk/res/android"
android:keyWidth="10%p"
android:horizontalGap="0px"
android:verticalGap="0px"
android:keyHeight="60dp"
>
<Row>
<Key android:codes="49" android:keyLabel="1" android:keyEdgeFlags="left"/>
<Key android:codes="50" android:keyLabel="2"/>
<Key android:codes="51" android:keyLabel="3"/>
<Key android:codes="52" android:keyLabel="4"/>
<Key android:codes="53" android:keyLabel="5"/>
<Key android:codes="54" android:keyLabel="6"/>
<Key android:codes="55" android:keyLabel="7"/>
<Key android:codes="56" android:keyLabel="8"/>
<Key android:codes="57" android:keyLabel="9"/>
<Key android:codes="48" android:keyLabel="0" android:keyEdgeFlags="right"/>
</Row>
...
Here's method.xml
:
<?xml version="1.0" encoding="utf-8"?>
<input-method xmlns:android="http://schemas.android.com/apk/res/android">
<subtype
android:label= "@string/subtype_en_US"
android:imeSubtypeLocale= "en_US"
android:imeSubtypeMode= "keyboard"
/>
</input-method>
Here's AndroidManifest.xml
:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.dslomer64.simplekeyboard">
<application
android:allowBackup="true"
android:label="@string/app_name"
android:icon="@mipmap/ic_launcher"
android:theme="@style/AppTheme">
<service android:name=".SimpleIME"
android:label="@string/simple_ime"
android:permission="android.permission.BIND_INPUT_METHOD"
>
<meta-data android:name="android.view.im" android:resource="@xml/method"/>
<intent-filter>
<action android:name="android.view.InputMethod" />
</intent-filter>
</service>
</application>
</manifest>
The service
that's added to the manifest is what gets at the soft keyboard through the code in SimpleIME.java
(empty overrides omitted):
import android.inputmethodservice.InputMethodService;
import android.inputmethodservice.Keyboard;
import android.inputmethodservice.KeyboardView;
import android.media.AudioManager;
import android.view.KeyEvent;
import android.view.View;
import android.view.inputmethod.InputConnection;
public class SimpleIME extends InputMethodService
implements KeyboardView.OnKeyboardActionListener
{
private KeyboardView kv;
private Keyboard keyboard;
private boolean caps = false;
@Override
public View onCreateInputView() {
kv = (KeyboardView)getLayoutInflater().inflate(R.layout.keyboard, null);
keyboard = new Keyboard(this, R.xml.qwerty);
kv.setKeyboard(keyboard);
kv.setOnKeyboardActionListener(this);
return kv;
}
private void playClick(int keyCode){
AudioManager am = (AudioManager)getSystemService(AUDIO_SERVICE);
switch(keyCode){
case 32:
am.playSoundEffect(AudioManager.FX_KEYPRESS_SPACEBAR);
break;
case Keyboard.KEYCODE_DONE:
case 10:
am.playSoundEffect(AudioManager.FX_KEYPRESS_RETURN);
break;
case Keyboard.KEYCODE_DELETE:
am.playSoundEffect(AudioManager.FX_KEYPRESS_DELETE);
break;
default: am.playSoundEffect(AudioManager.FX_KEYPRESS_STANDARD);
}
}
@Override
public void onKey(int primaryCode, int[] keyCodes) {
InputConnection ic = getCurrentInputConnection();
playClick(primaryCode);
switch(primaryCode){
case Keyboard.KEYCODE_DELETE :
ic.deleteSurroundingText(1, 0);
break;
case Keyboard.KEYCODE_SHIFT:
caps = !caps;
keyboard.setShifted(caps);
kv.invalidateAllKeys();
break;
case Keyboard.KEYCODE_DONE:
ic.sendKeyEvent(new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_ENTER));
break;
default:
char code = (char)primaryCode;
if(Character.isLetter(code) && caps){
code = Character.toUpperCase(code);
}
ic.commitText(String.valueOf(code),1);
}
}
...
}
I wonder if anyone out there has done what I need: implement a custom keyboard JUST FOR ONE APP and restore original upon loss of screen focus.