Show virtual keyboard in TabLayout Android dashboard

Question

I use TabLayout to display various input methods. The first tab contains buttons, and the fourth tab should display the standard keyboard built into this TabLayout. Here is a screenshot of how it should look:

TabLayout still works. I tried to create an XML layout file using KeyboardView. But the application does not show the keyboard:

<?xml version="1.0" encoding="utf-8"?> <android.inputmethodservice.KeyboardView xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/keyboard" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_alignParentBottom="true" /> 

If I use simple Textview, the application displays the text ... so TabLayout itself works:

 <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:textAppearance="?android:attr/textAppearanceMedium" android:text="This is a tab layout" android:id="@+id/textView" android:layout_centerVertical="true" android:layout_centerHorizontal="true" /> </RelativeLayout> 

My question is: how can I create a simple keyboard and display it in TabLayout? Thanks!

Answer 1

In my snippet, I need some lines of code, for example, I had to add an XML Layout file:

 public class SQLConsoleTab2Fragment extends SQLConsoleFragment implements KeyboardView.OnKeyboardActionListener { public KeyboardView keyboard123; public View Tab2View; @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { //execute(v) Tab2View = inflater.inflate(R.layout.tab2, container, false); keyboard123 = (KeyboardView) Tab2View.findViewById(R.id.keyboard123); Keyboard k1 = new Keyboard(Tab2View.getContext(), R.xml.qwerty_keyboard); Tab2View.findViewById(R.id.keyboard123); keyboard123.setKeyboard(k1); keyboard123.setEnabled(true); keyboard123.setPreviewEnabled(true); keyboard123.setOnKeyboardActionListener(this); return Tab2View; } } 

Answer 2

I wrote IME about two years ago. Your case is different from mine, but the idea should be the same.

The problem is that you did not specify a Keyboard Layout to view the keyboard.

See code:

  @Override public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { // Round up a little if (mKeyboard == null) { setMeasuredDimension(mPaddingLeft + mPaddingRight, mPaddingTop + mPaddingBottom); } else { int width = mKeyboard.getMinWidth() + mPaddingLeft + mPaddingRight; if (MeasureSpec.getSize(widthMeasureSpec) < width + 10) { width = MeasureSpec.getSize(widthMeasureSpec); } setMeasuredDimension(width, mKeyboard.getHeight() + mPaddingTop + mPaddingBottom); } } 

The variable cat mKeyboard set via setKeyboard . What you need to do:

• Create a keyboard layout file in the resource folder
• Create an instance of Keyboard and set it to KeyboardView
• Try running the code.

Answer 3

I did not write about any other information, so I think that it is necessary to write complete steps for working with a keyboard based on doc, or This example :

1 Modify the manifest by adding properties (to the action or service)

 <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> 

2) Create the main file using the keyboard properties:

 <?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> 

3) Define a KeyboardView in the layout (like you)

 <?xml version="1.0" encoding="UTF-8"?> <android.inputmethodservice.KeyboardView xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/keyboard" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_alignParentBottom="true" android:keyPreviewLayout ="@layout/preview" /> 

4) Define the keyboard keys (example only):

 <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"/> // .......... </Keyboard> 

5) Define a service or extend these interfaces in Acitivity:

 public class SimpleIME extends InputMethodService implements OnKeyboardActionListener{ private KeyboardView kv; private Keyboard keyboard; private boolean caps = false; @Override public void onKey(int primaryCode, int[] keyCodes) { } @Override public void onPress(int primaryCode) { } @Override public void onRelease(int primaryCode) { } @Override public void onText(CharSequence text) { } @Override public void swipeDown() { } @Override public void swipeLeft() { } @Override public void swipeRight() { } @Override public void swipeUp() { } } 

6) Instead of just updating methods for actions based on an example or document. It's all...