跟着我一起按步驟來做，保證你一學就會。
步驟如下：
一、先自定義一個鍵盤布局檔案：
在項目res/xml目錄下建立一個xml檔案，比如number_only.xml
[html] view
plaincopy
<?xml version="1.0" encoding="utf-8"?>
<keyboard xmlns:android="http://schemas.android.com/apk/res/android"
android:horizontalgap="0px"
android:keyheight="13%p"
android:keywidth="33%p"
android:verticalgap="0px" >
<row>
<key
android:codes="49"
android:keylabel="1" />
android:codes="50"
android:keylabel="2" />
android:codes="51"
android:keylabel="3" />
</row>
android:codes="52"
android:keylabel="4" />
android:codes="53"
android:keylabel="5" />
android:codes="54"
android:keylabel="6" />
android:codes="55"
android:keylabel="7" />
android:codes="56"
android:keylabel="8" />
android:codes="57"
android:keylabel="9" />
android:codes="-2"
android:keylabel="" />
android:codes="48"
android:keylabel="0" />
android:codes="-5"
android:keyicon="@drawable/keyboard_delete" />
</keyboard>
二、編寫一個鍵盤事件處理的工具類，如keyboardutil.java
[java] view
import java.util.arraylist;
import android.app.activity;
import android.inputmethodservice.keyboard;
import android.inputmethodservice.keyboardview;
import android.inputmethodservice.keyboardview.onkeyboardactionlistener;
import android.view.view;
import android.widget.edittext;
public class keyboardutil {
private activity myactivity;
private keyboardview keyboardview;
private keyboard kb_num_only;
private arraylist<edittext> listed;
private string thispwdtext = "";
public keyboardutil(activity activity) {
this.myactivity = activity;
kb_num_only = new keyboard(activity, r.xml.number_only);
keyboardview = (keyboardview) myactivity
.findviewbyid(r.id.keyboard_view);
keyboardview.setkeyboard(kb_num_only);
keyboardview.setenabled(true);
keyboardview.setpreviewenabled(true);
keyboardview.setonkeyboardactionlistener(listener);
}
private onkeyboardactionlistener listener = new onkeyboardactionlistener() {
@override
public void swipeup() {
}
public void swiperight() {
public void swipeleft() {
public void swipedown() {
public void ontext(charsequence text) {
public void onrelease(int primarycode) {
public void onpress(int primarycode) {
public void onkey(int primarycode, int[] keycodes) {
if (primarycode == -2) {
return;
} else if (primarycode == keyboard.keycode_delete) {// 回退
// 删除按鈕所做的動作
if (thispwdtext != null && thispwdtext.length() >= 1) {
thispwdtext = thispwdtext.substring(0,
thispwdtext.length() - 1);
system.out.println("thispwdtext=" + thispwdtext);
int len = thispwdtext.length();
if (len <= 3) {
listed.get(len).settext("");
}
}
} else {
thispwdtext = thispwdtext + (char) primarycode;
system.out.println("thispwdtext=" + thispwdtext);
int len = thispwdtext.length();
if (len <= 4) {
listed.get(len - 1).settext("*");
if (len == 4) {
// 傳回值，并清理本次記錄，自動進入下次
listed.get(4).settext(thispwdtext);
thispwdtext = "";
}
};
/**
* 包括四個密碼輸入框和一個密碼儲存框(按此順序即可)
*
* @param etlist
*/
public void setlistedittext(arraylist<edittext> etlist) {
this.listed = etlist;
// 顯示鍵盤
public void showkeyboard() {
int visibility = keyboardview.getvisibility();
if (visibility == view.gone || visibility == view.invisible) {
keyboardview.setvisibility(view.visible);
// 隐藏鍵盤
public void hidekeyboard() {
if (visibility == view.visible) {
keyboardview.setvisibility(view.invisible);
}
三、建立一個activity視窗類：如setlockpwdactivity.java
import android.content.intent;
import android.os.bundle;
import android.os.handler;
import android.os.message;
import android.text.editable;
import android.text.inputtype;
import android.text.textwatcher;
import android.view.view.onclicklistener;
public class setlockpwdactivity extends activity {
private view backview;
private edittext etpwdone, etpwdtwo, etpwdthree, etpwdfour, etpwdtext;
private keyboardutil kbutil;
public string strlockpwdone;
public string strlockpwdtwo;
private handler mhandler;
@override
protected void oncreate(bundle savedinstancestate) {
// todo auto-generated method stub
super.oncreate(savedinstancestate);
setcontentview(r.layout.activity_set_lock_pwd);
findview();
setlistener();
initdata();
void findview() {
etpwdone = (edittext) findviewbyid(r.id.etpwdone_setlockpwd);
etpwdtwo = (edittext) findviewbyid(r.id.etpwdtwo_setlockpwd);
etpwdthree = (edittext) findviewbyid(r.id.etpwdthree_setlockpwd);
etpwdfour = (edittext) findviewbyid(r.id.etpwdfour_setlockpwd);
etpwdtext = (edittext) findviewbyid(r.id.etpwdtext_setlockpwd);
void setlistener() {
etpwdtext.addtextchangedlistener(new textwatcher() {
@override
public void ontextchanged(charsequence arg0, int arg1, int arg2,
int arg3) {
public void beforetextchanged(charsequence arg0, int arg1,
int arg2, int arg3) {
public void aftertextchanged(editable arg0) {
if (etpwdfour.gettext() != null
&& etpwdfour.gettext().tostring().length() >= 1) {
new thread(new runnable() {
@override
public void run() {
try {
thread.sleep(100);
} catch (exception e) {
e.printstacktrace();
} finally {
message msg = mhandler.obtainmessage();
msg.what = r.id.dosuccess;
mhandler.sendmessage(msg);
}
}
}).start();
});
void initdata() {
kbutil = new keyboardutil(setlockpwdactivity.this);
arraylist<edittext> list = new arraylist<edittext>();
list.add(etpwdone);
list.add(etpwdtwo);
list.add(etpwdthree);
list.add(etpwdfour);
list.add(etpwdtext);
kbutil.setlistedittext(list);
etpwdone.setinputtype(inputtype.type_null);
etpwdtwo.setinputtype(inputtype.type_null);
etpwdthree.setinputtype(inputtype.type_null);
etpwdfour.setinputtype(inputtype.type_null);
myhandle();
void backtoactivity() {
intent mintent = new intent(setlockpwdactivity.this, mainactivity.class);
startactivity(mintent);
public void myhandle() {
mhandler = new handler() {
public void handlemessage(message msg) {
super.handlemessage(msg);
switch (msg.what) {
case r.id.dosuccess:
if (etpwdfour.gettext() != null
&& etpwdfour.gettext().tostring().length() >= 1) {
if (strlockpwdone != null
&& strlockpwdone.length() == 4) {
string strreapt = etpwdtext.gettext().tostring();
if (strreapt.equals(strlockpwdone)) {
validate.toast(setlockpwdactivity.this,
"解鎖密碼設定成功");
strlockpwdone = null;
} else {
"解鎖密碼設定失敗");
} else {
strlockpwdone = etpwdtext.gettext().tostring();
etpwdone.settext("");
etpwdtwo.settext("");
etpwdthree.settext("");
etpwdfour.settext("");
break;
default:
};
此activity對應的layout檔案：
<linearlayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/black"
android:orientation="vertical" >
<linearlayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_margintop="55dp"
android:orientation="horizontal" >
<edittext
android:id="@+id/etpwdone_setlockpwd"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@color/white"
android:cursorvisible="false"
android:ems="1"
android:gravity="center"
android:lines="1"
android:textsize="31sp" >
</edittext>
android:id="@+id/etpwdtwo_setlockpwd"
android:layout_marginleft="16dp"
android:textsize="31sp" />
android:id="@+id/etpwdthree_setlockpwd"
android:id="@+id/etpwdfour_setlockpwd"
android:id="@+id/etpwdtext_setlockpwd"
android:visibility="gone" />
</linearlayout>
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:orientation="vertical" >
<android.inputmethodservice.keyboardview
android:id="@+id/keyboard_view"
android:layout_width="fill_parent"
android:layout_gravity="center"
android:background="@color/lightblack"
android:focusable="true"
android:focusableintouchmode="true"
android:keybackground="@drawable/keyboard_key"
android:keytextcolor="@color/white" />
</linearlayout>
四、最後一步，别忘了在androidmanifest.xml配置檔案中聲明上面的activity類。
效果如下：