Android开发UI之EditText+DatePicker带日期选择器的编辑框

1. 声明EditText变量，并关联到相应控件上

 private EditText sellStartTime;
 private EditText sellEndTime;  

 sellStartTime = (EditText)findViewById(R.id.editSellStartTime);
 sellEndTime = (EditText)findViewById(R.id.editSellEndTime);  

2. 日期选择器函数

 private DatePickerDialog.OnDateSetListener mDateSetListener =
             new DatePickerDialog.OnDateSetListener() {
                 public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
                     mYear = year;
                     String mm;
                     String dd;
                     if(monthOfYear<=9)
                     {
                         mMonth = monthOfYear+1;
                         mm="0"+mMonth;
                     }
                     else{
                         mMonth = monthOfYear+1;
                         mm=String.valueOf(mMonth);
                         }
                     if(dayOfMonth<=9)
                     {
                         mDay = dayOfMonth;
                         dd="0"+mDay;
                     }
                     else{
                         mDay = dayOfMonth;
                         dd=String.valueOf(mDay);
                         }
                     mDay = dayOfMonth;
                     if(timeFlag == 0) {
                         sellStartTime.setText(String.valueOf(mYear)+"-"+mm+"-"+dd);
                     }else {
                         sellEndTime.setText(String.valueOf(mYear)+"-"+mm+"-"+dd);
                     }
                 }
             };

     protected Dialog onCreateDialog(int id) {
         switch (id) {
         case 0:
             return new DatePickerDialog(this,
                     mDateSetListener,
                     mYear, mMonth, mDay);
         case 1:
             return new DatePickerDialog(this,
                     mDateSetListener,
                     mYear, mMonth, mDay);
         }
         return null;
     }

     // 隐藏手机键盘
     private void hideIM(View edt){
         try {
              InputMethodManager im = (InputMethodManager) getSystemService(Activity.INPUT_METHOD_SERVICE);
              IBinder  windowToken = edt.getWindowToken();
              if(windowToken != null) {
                  im.hideSoftInputFromWindow(windowToken, 0);
              }
          } catch (Exception e) {

          }
      }

3. 注册监听器，当EditText获得焦点时，或者被点击时，打开日期选择器

                 sellStartTime.setOnClickListener(new OnClickListener(){
                     public void onClick(View v) {
                         timeFlag = 0;
                         showDialog(0);
             }
             });
         sellEndTime.setOnClickListener(new OnClickListener() {
             public void onClick(View v) {
                 timeFlag = 1;
                 showDialog(1);
             }
         });
         sellStartTime.setOnFocusChangeListener(new OnFocusChangeListener() {
             public void onFocusChange(View v, boolean hasFocus) {
                 if (hasFocus == true) {
                     timeFlag = 0;
                     hideIM(v);
                     showDialog(0);
                 }
             }
         });

         sellEndTime.setOnFocusChangeListener(new OnFocusChangeListener() {
             public void onFocusChange(View v, boolean hasFocus) {
                 if (hasFocus == true) {
                     timeFlag = 1;
                     hideIM(v);
                     showDialog(1);
                 }
             }
         });

4. 在包含EditText的LinearLayout中，添加语句

 android:focusable="true"  android:focusableInTouchMode="true"  

这句话，是为了防止EditText自动获取焦点，触发日期选择器。

EditText如何关闭软键盘

方法一：
在AndroidMainfest.xml中选择哪个activity，设置windowSoftInputMode属性为adjustUnspecified|stateHidden
例如：<activity android:name=".Main"
                  android:label="@string/app_name"
                  android:windowSoftInputMode="adjustUnspecified|stateHidden"
                  android:configChanges="orientation|keyboardHidden">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
方法二：
强制隐藏Android输入法窗口
例如：EditText edit=(EditText)findViewById(R.id.edit); 
           InputMethodManager imm = (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
           imm.hideSoftInputFromWindow(edit.getWindowToken(),0);

2.EditText始终不弹出软件键盘
例：EditText edit=(EditText)findViewById(R.id.edit);
       edit.setInputType(InputType.TYPE_NULL);

还有一个问题是怎样才能不让实体键盘也输入呢，解决方法

Android用代码实现EditText不可编辑

editText.setFilters(new InputFilter[] { new InputFilter() {

@Override

public CharSequence filter(CharSequence source, int start,

int end, Spanned dest, int dstart, int dend) {

return source.length() < 1 ? dest.subSequence(dstart, dend) : "";

}

}

}); 但是这样连DatePicker的设置也不能显示到EditText里了，改一改

//实现EditText不可编辑
  birthEdit.setFilters(new InputFilter[]{new InputFilter(){
   @Override
   public CharSequence filter(CharSequence source, int start, int end,
     Spanned dest, int dstart, int dend) {
    
    showDialog(HmConst.DIALOG_DATEPICKER);//不管按什么键都让DatePicker出现
    return source.length() == 1 ? "" : source;   //DatePicker的设置还是要让他显示滴
   }
   
  }});

我的实验代码，可行

protected void onCreate(Bundle savedInstanceState) {
  // TODO Auto-generated method stub
  super.onCreate(savedInstanceState);
  setContentView(R.layout.register);

birthEdit =(EditText)findViewById(R.id.birthEdit);

makeDateEdit();

}

/**
  * 将EditText变成一个日期选择器
  */
 public void makeDateEdit(){
  //隐藏EditText键盘
  birthEdit.setInputType(InputType.TYPE_NULL);
  //点击显示DatePickerDialog
  birthEdit.setOnClickListener(new OnClickListener(){
   @Override
   public void onClick(View v) {
    // TODO Auto-generated method stub
    showDialog(HmConst.DIALOG_DATEPICKER);
   }
  });
  
  //实现EditText不可编辑
  birthEdit.setFilters(new InputFilter[]{new InputFilter(){
   @Override
   public CharSequence filter(CharSequence source, int start, int end,
     Spanned dest, int dstart, int dend) {
    
    showDialog(HmConst.DIALOG_DATEPICKER);//不管按什么键都让DatePicker出现
    return source.length() == 1  ? "" : source;  
   }
   
  }});
  //屏蔽实体键盘delete键
  birthEdit.setOnKeyListener(new OnKeyListener(){
   @Override
   public boolean onKey(View v, int keyCode, KeyEvent event) {
    // TODO Auto-generated method stub
     if(keyCode == KeyEvent.KEYCODE_DEL) { 
      showDialog(HmConst.DIALOG_DATEPICKER);//delete键都让DatePicker出现
               return true;//返回真就会屏蔽delete键的原效果
           } 
        return false;
   }
  });
  //设置时间选择器的监听器
  mDateSetListener =  new DatePickerDialog.OnDateSetListener() {   
            @Override
            public void onDateSet(DatePicker view, int year, int monthOfYear,
              int dayOfMonth) {
             // TODO Auto-generated method stub
             
                    mYear = year;   
                    String mm;   
                    String dd;   
                    mMonth = monthOfYear+1; //因为month是从0开始计数的
                    if(mMonth<=9)   
                    {   
                        mm="0"+mMonth;   
                    }   
                    else{   
                        mm=String.valueOf(mMonth);   
                    }   
                    
                    mDay = dayOfMonth; 
                    if(mDay<=9)   
                    {   
                        dd="0"+mDay;   
                    }   
                    else{   
                        dd=String.valueOf(mDay);   
                        }   
                    mDay = dayOfMonth;   
                    //将选择的时间显示在EditText上
                    birthEdit.setText(String.valueOf(mYear)+"-"+mm+"-"+dd);   
                       
                
            }             
        };   
 }
 
 
 
 @Override
 protected Dialog onCreateDialog(int id) {
  // TODO Auto-generated method stub
  switch(id){
  case HmConst.DIALOG_DATEPICKER:
   return new DatePickerDialog(this,mDateSetListener,2010,11,25);
  default:
   return null;
  }
 }