android 自定义软键盘

哦然间发现了android.inputmethodservice.Keyboard类，即android可以自定义键盘类，做了一个简单例子供大家参考，

首先看看效果图：

键盘内容布局：keycontent.xml

<?xml version="1.0" encoding="utf-8"?>
<Keyboard xmlns:android="http://schemas.android.com/apk/res/android"
    android:keyWidth="25%p"
    android:horizontalGap="0px"
    android:verticalGap="0px"
    android:keyHeight="50dip">
    <Row>
        <Key android:codes="49" android:keyLabel="1" />
        <Key android:codes="50" android:keyLabel="2" />
        <Key android:codes="51" android:keyLabel="3" />
        <Key android:codes="57419"
            android:keyEdgeFlags="right"
            android:keyIcon="@drawable/keyboard_capslock" />
    </Row>
    <Row>
        <Key android:codes="52" android:keyLabel="4" />
        <Key android:codes="53" android:keyLabel="5" />
        <Key android:codes="54" android:keyLabel="6" />
        <Key android:codes="57421"
            android:keyEdgeFlags="right"
            android:keyIcon="@drawable/keyboard_big_capslock" />
    </Row>
    <Row>
        <Key android:codes="55" android:keyLabel="7" />
        <Key android:codes="56" android:keyLabel="8" />
        <Key android:codes="57" android:keyLabel="9" />
        <Key android:codes="-5"
            android:keyEdgeFlags="right"
            android:isRepeatable="true"
            android:keyLabel="delete"
            android:keyIcon="@drawable/keyboard_delete" />
    </Row>
    <Row>
        <Key android:codes="-3" android:keyIcon="@drawable/keyboard_return" />
        <Key android:codes="48" android:keyLabel="0" />
        <Key android:codes="88" android:keyLabel="X" />
    </Row>
</Keyboard>

键盘布局 keyboardview.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content">
    <EditText 
        android:id="@+id/edit"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        />
    <android.inputmethodservice.KeyboardView
        android:id="@+id/keyboard_view"
        android:visibility="gone"
        android:focusable="true"
        android:focusableInTouchMode="true"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true" />
</RelativeLayout>

KeyboardActivity;

package com.pioneersoft.temp;

import android.app.Activity;
import android.inputmethodservice.Keyboard;
import android.inputmethodservice.KeyboardView;
import android.inputmethodservice.KeyboardView.OnKeyboardActionListener;
import android.os.Bundle;
import android.text.Editable;
import android.text.InputType;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.EditText;

public class KeyboardActivity extends Activity{

	EditText edit;
	KeyboardView keyboardView;
	
	@Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.keyboardview);
 
        edit = (EditText)findViewById(R.id.edit);
        edit.setInputType(InputType.TYPE_NULL);
        edit.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                showKeyboard();
            }
        });
 
        keyboardView = (KeyboardView)findViewById(R.id.keyboard_view);
        keyboardView.setKeyboard(new Keyboard(this, R.layout.keycontent));
        keyboardView.setEnabled(true);
        keyboardView.setPreviewEnabled(true);
        keyboardView.setOnKeyboardActionListener(new OnKeyboardActionListener() {
            @Override
            public void onKey(int primaryCode, int[] keyCodes) {
                Editable editable = edit.getText();
                int start = edit.getSelectionStart();
                if (primaryCode == Keyboard.KEYCODE_CANCEL) {
                    hideKeyboard();
                } else if (primaryCode == Keyboard.KEYCODE_DELETE) {
                    if (editable != null && editable.length() > 0) {
                        editable.delete(start - 1, start);
                    }
                } else if (primaryCode == 57419) { // go left
                    if (start > 0) {
                        edit.setSelection(start - 1);
                    }
                } else if (primaryCode == 57421) { // go right
                    if (start < edit.length()) {
                        edit.setSelection(start + 1);
                    }
                } else {
                    editable.insert(start, Character.toString((char)primaryCode));
                }
            }

			@Override
			public void onPress(int primaryCode) {
				// TODO Auto-generated method stub
				
			}

			@Override
			public void onRelease(int primaryCode) {
				// TODO Auto-generated method stub
				
			}

			@Override
			public void onText(CharSequence text) {
				// TODO Auto-generated method stub
				
			}

			@Override
			public void swipeDown() {
				// TODO Auto-generated method stub
				
			}

			@Override
			public void swipeLeft() {
				// TODO Auto-generated method stub
				
			}

			@Override
			public void swipeRight() {
				// TODO Auto-generated method stub
				
			}

			@Override
			public void swipeUp() {
				// TODO Auto-generated method stub
				
			}
        });
    }
 
    private void showKeyboard() {
        int visibility = keyboardView.getVisibility();
        if (visibility == View.GONE || visibility == View.INVISIBLE) {
            keyboardView.setVisibility(View.VISIBLE);
        }
    }
 
    private void hideKeyboard() {
        int visibility = keyboardView.getVisibility();
        if (visibility == View.VISIBLE) {
            keyboardView.setVisibility(View.INVISIBLE);
        }
    }
	
}

以上就是自定义键盘布局的内容，如需详细内容需要参考api。