Android(安卓)测试自定义纯数字软键盘


<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    tools:context=".MainActivity" >    <EditText        android:id="@+id/editText1"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:layout_centerHorizontal="true"        android:layout_marginRight="24dp"        android:ems="10"        android:inputType="none" >        <requestFocus />    </EditText>    <android.inputmethodservice.KeyboardView        android:id="@+id/keyboardview"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:layout_alignParentBottom="true"        android:layout_marginTop="5.0dp"        android:background="#ffffffff"        android:focusable="true"        android:keyBackground="@drawable/calculator_button_bg"        android:keyTextColor="@color/black"        android:keyTextSize="26.0sp"        android:shadowColor="#ffffffff"        android:shadowRadius="0.0"        android:visibility="gone" /></RelativeLayout>

hexkbd.xml

<?xml version="1.0" encoding="utf-8"?><Keyboard xmlns:android="http://schemas.android.com/apk/res/android"    android:background="#ffffffff"    android:keyHeight="10%p"    android:keyWidth="100%p" >    <Row>        <Key            android:codes="55"            android:keyEdgeFlags="left"            android:keyLabel="7" />        <Key            android:codes="56"            android:keyLabel="8" />        <Key            android:codes="57"            android:keyLabel="9" />    </Row>    <Row>        <Key            android:codes="52"            android:keyEdgeFlags="left"            android:keyLabel="4" />        <Key            android:codes="53"            android:keyLabel="5" />        <Key            android:codes="54"            android:keyLabel="6" />    </Row>    <Row>        <Key            android:codes="49"            android:keyEdgeFlags="left"            android:keyLabel="1" />        <Key            android:codes="50"            android:keyLabel="2" />        <Key            android:codes="51"            android:keyLabel="3" />    </Row>    <Row>        <Key            android:codes="46"            android:keyEdgeFlags="left"            android:keyLabel="." />        <Key            android:codes="48"            android:keyLabel="0" />        <Key            android:codes="-5"            android:isRepeatable="true"            android:keyIcon="@drawable/sym_keyboard_delete" />    </Row></Keyboard>

MainActivity.java

package com.example.yanlei.yl2;import android.app.Activity;import android.os.Bundle;import android.view.View;import android.view.View.OnClickListener;import android.widget.EditText;public class MainActivity extends Activity implements OnClickListener{    CustomKeyboard mCustomKeyboard;    EditText editText;    @Override    protected void onCreate(Bundle savedInstanceState)    {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        editText = (EditText) findViewById(R.id.editText1);        mCustomKeyboard = new CustomKeyboard(this, R.id.keyboardview,                R.xml.hexkbd);        mCustomKeyboard.registerEditText(R.id.editText1);    }    @Override    public void onClick(View v)    {        switch (v.getId())        {            default:                break;        }    }}

 CustomKeyboard.java

package com.example.yanlei.yl2;import android.app.Activity;import android.inputmethodservice.Keyboard;import android.inputmethodservice.KeyboardView;import android.inputmethodservice.KeyboardView.OnKeyboardActionListener;import android.text.Editable;import android.text.InputType;import android.view.MotionEvent;import android.view.View;import android.view.View.OnClickListener;import android.view.View.OnFocusChangeListener;import android.view.View.OnTouchListener;import android.view.WindowManager;import android.view.inputmethod.InputMethodManager;import android.widget.EditText;/** * When an activity hosts a keyboardView, this class allows several EditText's * to register for it. * * @author Maarten Pennings * @date 2012 December 23 */class CustomKeyboard{    /** A link to the KeyboardView that is used to render this CustomKeyboard. */    private KeyboardView mKeyboardView;    /** A link to the activity that hosts the {@link #mKeyboardView}. */    private Activity mHostActivity;    /** The key (code) handler. */    private OnKeyboardActionListener mOnKeyboardActionListener = new OnKeyboardActionListener()    {        public final static int CodeDelete = -5; // Keyboard.KEYCODE_DELETE        public final static int CodeCancel = -3; // Keyboard.KEYCODE_CANCEL        @Override        public void onKey(int primaryCode, int[] keyCodes)        {            // NOTE We can say '<Key android:codes="49,50" ... >' in the xml            // file; all codes come in keyCodes, the first in this list in            // primaryCode            // Get the EditText and its Editable            View focusCurrent = mHostActivity.getWindow().getCurrentFocus();            if (focusCurrent == null                    || focusCurrent.getClass() != EditText.class)                return;            EditText edittext = (EditText) focusCurrent;            Editable editable = edittext.getText();            int start = edittext.getSelectionStart();            // Apply the key to the edittext            if (primaryCode == CodeCancel)            {                hideCustomKeyboard();            }            else if (primaryCode == CodeDelete)            {                if (editable != null && start > 0)                    editable.delete(start - 1, start);            }            else            { // insert character                editable.insert(start, Character.toString((char) primaryCode));            }        }        @Override        public void onPress(int arg0)        {        }        @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()        {        }    };    /**     * Create a custom keyboard, that uses the KeyboardView (with resource id     * <var>viewid</var>) of the <var>host</var> activity, and load the keyboard     * layout from xml file <var>layoutid</var> (see {@link Keyboard} for     * description). Note that the <var>host</var> activity must have a     * <var>KeyboardView</var> in its layout (typically aligned with the bottom     * of the activity). Note that the keyboard layout xml file may include key     * codes for navigation; see the constants in this class for their values.     * Note that to enable EditText's to use this custom keyboard, call the     * {@link #registerEditText(int)}.     *     * @param host     *            The hosting activity.     * @param viewid     *            The id of the KeyboardView.     * @param layoutid     *            The id of the xml file containing the keyboard layout.     */    public CustomKeyboard(Activity host, int viewid, int layoutid)    {        mHostActivity = host;        mKeyboardView = (KeyboardView) mHostActivity.findViewById(viewid);        mKeyboardView.setKeyboard(new Keyboard(mHostActivity, layoutid));        mKeyboardView.setPreviewEnabled(false); // NOTE Do not show the preview        // balloons        mKeyboardView.setOnKeyboardActionListener(mOnKeyboardActionListener);        // Hide the standard keyboard initially        mHostActivity.getWindow().setSoftInputMode(                WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN);    }    /** Returns whether the CustomKeyboard is visible. */    public boolean isCustomKeyboardVisible()    {        return mKeyboardView.getVisibility() == View.VISIBLE;    }    /**     * Make the CustomKeyboard visible, and hide the system keyboard for view v.     */    public void showCustomKeyboard(View v)    {        mKeyboardView.setVisibility(View.VISIBLE);        mKeyboardView.setEnabled(true);        if (v != null)            ((InputMethodManager) mHostActivity                    .getSystemService(Activity.INPUT_METHOD_SERVICE))                    .hideSoftInputFromWindow(v.getWindowToken(), 0);    }    /** Make the CustomKeyboard invisible. */    public void hideCustomKeyboard()    {        mKeyboardView.setVisibility(View.GONE);        mKeyboardView.setEnabled(false);    }    /**     * Register <var>EditText<var> with resource id <var>resid</var> (on the     * hosting activity) for using this custom keyboard.     *     * @param resid     *            The resource id of the EditText that registers to the custom     *            keyboard.     */    public void registerEditText(int resid)    {        // Find the EditText 'resid'        EditText edittext = (EditText) mHostActivity.findViewById(resid);        // Make the custom keyboard appear        edittext.setOnFocusChangeListener(new OnFocusChangeListener()        {            // NOTE By setting the on focus listener, we can show the custom            // keyboard when the edit box gets focus, but also hide it when the            // edit box loses focus            @Override            public void onFocusChange(View v, boolean hasFocus)            {                if (hasFocus)                    showCustomKeyboard(v);                else                    hideCustomKeyboard();            }        });        edittext.setOnClickListener(new OnClickListener()        {            // NOTE By setting the on click listener, we can show the custom            // keyboard again, by tapping on an edit box that already had focus            // (but that had the keyboard hidden).            @Override            public void onClick(View v)            {                showCustomKeyboard(v);            }        });        // Disable standard keyboard hard way        // NOTE There is also an easy way:        // 'edittext.setInputType(InputType.TYPE_NULL)' (but you will not have a        // cursor, and no 'edittext.setCursorVisible(true)' doesn't work )        edittext.setOnTouchListener(new OnTouchListener()        {            @Override            public boolean onTouch(View v, MotionEvent event)            {                EditText edittext = (EditText) v;                int inType = edittext.getInputType(); // Backup the input type                edittext.setInputType(InputType.TYPE_NULL); // Disable standard                // keyboard                edittext.onTouchEvent(event); // Call native handler                edittext.setInputType(inType); // Restore input type                return true; // Consume touch event            }        });        // Disable spell check (hex strings look like words to Android)        edittext.setInputType(edittext.getInputType()                | InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS);    }}// NOTE How can we change the background color of some keys (like the// shift/ctrl/alt)?// NOTE What does android:keyEdgeFlags do/mean

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