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;
}
}