业务需求自定义数字键盘，写了一个demo
主要代码：
import android.app.Activity;
import android.content.Context;
import android.graphics.drawable.ColorDrawable;
import android.util.DisplayMetrics;
import android.view.View;
import android.view.WindowManager;
import android.view.ViewGroup.LayoutParams;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.PopupWindow;
import com.example.caculater.PopupWindowUtil.OnPopuWindowListener;
import com.example.caculaternumber.R;
import com.lidroid.xutils.ViewUtils;
import com.lidroid.xutils.view.annotation.ViewInject;
import com.lidroid.xutils.view.annotation.event.OnClick;
public class CaculaterPopuWindow{
private static Activity mActivity;
private static CaculaterPopuWindow mPopupWindow;
private String phone="";
@ViewInject(R.id.caculater_del)
private ImageView caculaterdel;
@ViewInject(R.id.caculater_p)
private ImageView caculaterp;
@ViewInject(R.id.caculater_0)
private ImageView caculater0;
@ViewInject(R.id.caculater_1)
private ImageView caculater1;
@ViewInject(R.id.caculater_2)
private ImageView caculater2;
@ViewInject(R.id.caculater_3)
private ImageView caculater3;
@ViewInject(R.id.caculater_4)
private ImageView caculater4;
@ViewInject(R.id.caculater_5)
private ImageView caculater5;
@ViewInject(R.id.caculater_6)
private ImageView caculater6;
@ViewInject(R.id.caculater_7)
private ImageView caculater7;
@ViewInject(R.id.caculater_8)
private ImageView caculater8;
@ViewInject(R.id.caculater_9)
private ImageView caculater9;
@ViewInject(R.id.editText)
private EditText editText;
private OnPopuWindowListener listener;
private int mScreenWidth;
private int mScreenHeight;
public CaculaterPopuWindow(){
}
public static CaculaterPopuWindow getInstance(Activity activity){
mActivity=activity;
if(mPopupWindow==null){
mPopupWindow=new CaculaterPopuWindow();
}
return mPopupWindow;
}
public PopupWindow onCreate(OnPopuWindowListener listener) {
// TODO Auto-generated method stub
this.listener=listener;
View view=mActivity.getLayoutInflater().inflate(R.layout.include_caculater, null);
ViewUtils.inject(this, view);
initScreen();
int height=mScreenHeight/3;
PopupWindow pw=new PopupWindow(view,LayoutParams.MATCH_PARENT,height);
pw.setBackgroundDrawable(new ColorDrawable(0));
pw.setOutsideTouchable(true);
return pw;
}
@OnClick({R.id.caculater_0,R.id.caculater_1,R.id.caculater_2,R.id.caculater_3,R.id.caculater_4,R.id.caculater_5,R.id.caculater_6,R.id.caculater_7,R.id.caculater_8,R.id.caculater_9,R.id.caculater_p,R.id.caculater_del})
private void clickMethod(View v){
if(v==caculaterdel){
listener.delete();
}else{
if(v==caculater0){
phone="0";
}else if(v==caculater1){
phone="1";
}else if(v==caculater2){
phone="2";
}else if(v==caculater3){
phone="3";
}else if(v==caculater4){
phone="4";
}else if(v==caculater5){
phone="5";
}else if(v==caculater6){
phone="6";
}else if(v==caculater7){
phone="7";
}else if(v==caculater8){
phone="8";
}else if(v==caculater9){
phone="9";
}else if(v==caculaterp){
phone=".";
}
listener.addString(phone);
}
}
public void initScreen(){
WindowManager manager=(WindowManager)mActivity.getSystemService(Context.WINDOW_SERVICE);
DisplayMetrics outMetrics=new DisplayMetrics();
manager.getDefaultDisplay().getMetrics(outMetrics);
mScreenWidth=outMetrics.widthPixels;
mScreenHeight=outMetrics.heightPixels;
}
import android.text.InputType;
import android.view.MotionEvent;
import android.view.View;
import android.widget.EditText;
import android.widget.PopupWindow;
public class PopupWindowUtil implements android.view.View.OnTouchListener{
private static PopupWindowUtil util;
private EditText mEditText;
private PopupWindow mPopuWindow;
private OnPopuWindowListener listener;
public PopupWindowUtil(){
}
public static PopupWindowUtil getInstance(){
if(util==null){
util=new PopupWindowUtil();
}
return util;
}
public void setOnTouchListener(EditText mEditText,PopupWindow mPopuWindow,OnPopuWindowListener listener){
mEditText.setOnTouchListener(this);
this.mEditText=mEditText;
this.mPopuWindow=mPopuWindow;
this.listener=listener;
}
@Override
public boolean onTouch(View v, MotionEvent event) {
// TODO Auto-generated method stub
int inputType=mEditText.getInputType();
mEditText.setInputType(InputType.TYPE_NULL);
mEditText.setInputType(inputType);
mEditText.setSelection(mEditText.getText().toString().trim().length());
if(mPopuWindow!=null&&!mPopuWindow.isShowing()){
listener.showPopuWindow();
}
return false;
}
public interface OnPopuWindowListener{
void showPopuWindow();
void dismiss();
void addString(String str);
void delete();
}import android.app.Activity;
import android.os.Bundle;
import android.view.Gravity;
import android.view.View;
import android.widget.EditText;
import android.widget.PopupWindow;
import com.example.caculater.PopupWindowUtil.OnPopuWindowListener;
import com.lidroid.xutils.ViewUtils;
public abstract class BaseActivity extends Activity implements OnPopuWindowListener{
protected PopupWindow mPopupWindow;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(getCurrentView());
ViewUtils.inject(this);
initView();
}
public abstract int getCurrentView();
public abstract void initView();
public void initPopupWindow(){
if(mPopupWindow==null){
mPopupWindow=CaculaterPopuWindow.getInstance(this).onCreate(this);
}
}
public void StartPopupWindow(View view){
if(mPopupWindow!=null&&!mPopupWindow.isShowing()){
mPopupWindow.showAtLocation(view, Gravity.BOTTOM, 0, 0);
}
}
public void StopPopupWindow(){
if(mPopupWindow!=null&&mPopupWindow.isShowing()){
mPopupWindow.dismiss();
}
}
// 往文本框中添加内容
public void addString(EditText editText,String sequence) {
int index = getEditSelection(editText);// 光标的位置
if (index < 0 || index >= getEditTextViewString(editText).length()) {
editText.append(sequence);
} else {
editText.getEditableText().insert(index, sequence);// 光标所在位置插入文字
}
}
// 获取光标当前位置
public int getEditSelection(EditText editText) {
return editText.getSelectionStart();
}
// 获取文本框的内容
public String getEditTextViewString(EditText editText) {
return editText.getText().toString();
}
// 清除文本框中的内容
public void clearText(EditText editText) {
editText.getText().clear();
}
// 删除指定位置的字符
public void deleteEditValue(EditText editText,int index) {
editText.getText().delete(index - 1, index);
}
// 设置光标位置
public void setEditSelectionLoc(EditText editText,int index) {
editText.setSelection(index);
}
// 判断是否是数字
public static boolean isNum(String str) {
return str.matches("([0-9]+)?)$");
}
public void showPopuWindow(){
}
public void dismiss(){
}
public void addString(String str){
}
public void delete(){
}
}import android.widget.EditText;
import android.widget.LinearLayout;
import com.example.caculater.BaseActivity;
import com.example.caculater.PopupWindowUtil;
import com.lidroid.xutils.view.annotation.ViewInject;
public class MainActivity extends BaseActivity {
@ViewInject(R.id.editText)
private EditText editText;
@ViewInject(R.id.parent)
private LinearLayout parent;
@Override
public int getCurrentView() {
// TODO Auto-generated method stub
return R.layout.activity_main;
}
@Override
public void initView() {
// TODO Auto-generated method stub
initPopupWindow();
PopupWindowUtil.getInstance().setOnTouchListener(editText, mPopupWindow, this);
}
@Override
public void showPopuWindow() {
// TODO Auto-generated method stub
super.showPopuWindow();
StartPopupWindow(parent);
}
@Override
public void dismiss() {
// TODO Auto-generated method stub
super.dismiss();
StopPopupWindow();
}
@Override
public void delete() {
// TODO Auto-generated method stub
super.delete();
if(editText.getText().toString().trim().length()>0){
deleteEditValue(editText, getEditSelection(editText));
}
}
@Override
public void addString(String str) {
// TODO Auto-generated method stub
super.addString(str);
addString(editText, str);
}
}
原文地址：http://blog.csdn.net/anddroid_lanyan/article/details/45534579
