偶然间发现了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。

效果如下：

先看界面布局文件

android:layout_width="fill_parent"

android:layout_height="fill_parent"

android:orientation="vertical" >

android:id="@+id/edit"

android:layout_width="fill_parent"

android:layout_height="wrap_content" />

android:id="@+id/edit1"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:password="true" />

android:layout_width="fill_parent"

android:layout_height="wrap_content" >

android:id="@+id/keyboard_view"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:layout_alignParentBottom="true"

android:focusable="true"

android:focusableInTouchMode="true"

android:background="@color/lightblack"

android:keyBackground="@drawable/btn_keyboard_key"

android:keyTextColor="@color/white"

android:visibility="gone" />

通过布局文件可以看出界面上有两个输入框，其中一个是密码输入框，界面上还有一个隐藏的键盘控件。

在res下新建xml文件夹，在xml文件夹中新建qwerty.xml和symbols.xml文件. qwerty.xml 是字母键盘布局，symbols.xml 是数字键盘布局，内如如下:

qwerty.xml内容

android:horizontalGap="0.0px" android:verticalGap="0.0px"

xmlns:android="http://schemas.android.com/apk/res/android">

android:keyLabel="q" />

android:keyLabel="p" />

android:keyEdgeFlags="left" android:keyLabel="a" />

android:keyLabel="l" />

android:keyEdgeFlags="left" android:isModifier="true"

android:isSticky="true" android:keyIcon="@drawable/sym_keyboard_shift" />

android:keyEdgeFlags="right" android:isRepeatable="true"

android:keyIcon="@drawable/sym_keyboard_delete" />

android:keyLabel="12#" />

android:keyLabel="," />

android:isRepeatable="true" android:keyIcon="@drawable/sym_keyboard_space" />

android:keyLabel="." />

android:keyEdgeFlags="right" android:keyLabel="完成" />

symbols.xml 内容

android:keyWidth="25%p" android:horizontalGap="0px"

android:verticalGap="0px" android:keyHeight="@dimen/key_height">

android:keyIcon="@drawable/sym_keyboard_left" />

android:keyIcon="@drawable/sym_keyboard_right" />

android:keyEdgeFlags="right" android:isRepeatable="true"

android:keyLabel="完成" />

KeydemoActivity.java

package cn.key;

import android.app.Activity;

import android.content.Context;

import android.os.Bundle;

import android.text.InputType;

import android.view.MotionEvent;

import android.view.View;

import android.view.View.OnTouchListener;

import android.widget.EditText;

public class KeydemoActivity extends Activity {

private Context ctx;

private Activity act;

private EditText edit;

private EditText edit1;

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

ctx = this;

act = this;

edit = (EditText) this.findViewById(R.id.edit);

edit.setInputType(InputType.TYPE_NULL);

edit1 = (EditText) this.findViewById(R.id.edit1);

edit.setOnTouchListener(new OnTouchListener() {

@Override

public boolean onTouch(View v, MotionEvent event) {

new KeyboardUtil(act, ctx, edit).showKeyboard();

return false;

}

});

edit1.setOnTouchListener(new OnTouchListener() {

@Override

public boolean onTouch(View v, MotionEvent event) {

int inputback = edit1.getInputType();

edit1.setInputType(InputType.TYPE_NULL);

new KeyboardUtil(act, ctx, edit1).showKeyboard();

edit1.setInputType(inputback);

return false;

}

});

}

}

KeyboardUtil.java

package cn.key;

import java.util.List;

import android.app.Activity;

import android.content.Context;

import android.inputmethodservice.Keyboard;

import android.inputmethodservice.KeyboardView;

import android.inputmethodservice.Keyboard.Key;

import android.inputmethodservice.KeyboardView.OnKeyboardActionListener;

import android.text.Editable;

import android.view.View;

import android.widget.EditText;

public class KeyboardUtil {

private Context ctx;

private Activity act;

private KeyboardView keyboardView;

private Keyboard k1;// 字母键盘

private Keyboard k2;// 数字键盘

public boolean isnun = false;// 是否数据键盘

public boolean isupper = false;// 是否大写

private EditText ed;

public KeyboardUtil(Activity act, Context ctx, EditText edit) {

this.act = act;

this.ctx = ctx;

this.ed = edit;

k1 = new Keyboard(ctx, R.xml.qwerty);

k2 = new Keyboard(ctx, R.xml.symbols);

keyboardView = (KeyboardView) act.findViewById(R.id.keyboard_view);

keyboardView.setKeyboard(k1);

keyboardView.setEnabled(true);

keyboardView.setPreviewEnabled(true);

keyboardView.setOnKeyboardActionListener(listener);

}

private OnKeyboardActionListener listener = new OnKeyboardActionListener() {

@Override

public void swipeUp() {

}

@Override

public void swipeRight() {

}

@Override

public void swipeLeft() {

}

@Override

public void swipeDown() {

}

@Override

public void onText(CharSequence text) {

}

@Override

public void onRelease(int primaryCode) {

}

@Override

public void onPress(int primaryCode) {

}

@Override

public void onKey(int primaryCode, int[] keyCodes) {

Editable editable = ed.getText();

int start = ed.getSelectionStart();

if (primaryCode == Keyboard.KEYCODE_CANCEL) {// 完成

hideKeyboard();

} else if (primaryCode == Keyboard.KEYCODE_DELETE) {// 回退

if (editable != null && editable.length() > 0) {

if (start > 0) {

editable.delete(start - 1, start);

}

}

} else if (primaryCode == Keyboard.KEYCODE_SHIFT) {// 大小写切换

changeKey();

keyboardView.setKeyboard(k1);

} else if (primaryCode == Keyboard.KEYCODE_MODE_CHANGE) {// 数字键盘切换

if (isnun) {

isnun = false;

keyboardView.setKeyboard(k1);

} else {

isnun = true;

keyboardView.setKeyboard(k2);

}

} else if (primaryCode == 57419) { // go left

if (start > 0) {

ed.setSelection(start - 1);

}

} else if (primaryCode == 57421) { // go right

if (start < ed.length()) {

ed.setSelection(start + 1);

}

} else {

editable.insert(start, Character.toString((char) primaryCode));

}

}

};

/**

* 键盘大小写切换

*/

private void changeKey() {

List keylist = k1.getKeys();

if (isupper) {//大写切换小写

isupper = false;

for(Key key:keylist){

if (key.label!=null && isword(key.label.toString())) {

key.label = key.label.toString().toLowerCase();

key.codes[0] = key.codes[0]+32;

}

}

} else {//小写切换大写

isupper = true;

for(Key key:keylist){

if (key.label!=null && isword(key.label.toString())) {

key.label = key.label.toString().toUpperCase();

key.codes[0] = key.codes[0]-32;

}

}

}

}

public void showKeyboard() {

int visibility = keyboardView.getVisibility();

if (visibility == View.GONE || visibility == View.INVISIBLE) {

keyboardView.setVisibility(View.VISIBLE);

}

}

public void hideKeyboard() {

int visibility = keyboardView.getVisibility();

if (visibility == View.VISIBLE) {

keyboardView.setVisibility(View.INVISIBLE);

}

}

private boolean isword(String str){

String wordstr = "abcdefghijklmnopqrstuvwxyz";

if (wordstr.indexOf(str.toLowerCase())>-1) {

return true;

}

return false;

}

}

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。