用EditText和DatePicker制作的日期选择器

在Android开发中,我们经常会遇到选择日期的文本框,点击后用来选择日期时间,这个选择日期的实现方式有很多种,本文介绍一种用EditText和DatePicker制作的选择日期的编辑框,下面我们直接看待吗如何实现.

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);

1. 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。