Java 实现日期选择器中的问题
在我的Android应用程序中,当我点击一个按钮时,日期选择器就会出现。我想在文本vie中设置所选日期。但当我在日期选择器上设置日期并单击“完成”按钮时,它不会设置文本视图。这是我的尝试Java 实现日期选择器中的问题,java,android,datepicker,Java,Android,Datepicker,在我的Android应用程序中,当我点击一个按钮时,日期选择器就会出现。我想在文本vie中设置所选日期。但当我在日期选择器上设置日期并单击“完成”按钮时,它不会设置文本视图。这是我的尝试 final Calendar c = Calendar.getInstance(); Year = c.get(Calendar.YEAR); Month = c.get(Calendar.MONTH); Day = c.get(Calendar.DAY_OF_MONTH); @Ove
final Calendar c = Calendar.getInstance();
Year = c.get(Calendar.YEAR);
Month = c.get(Calendar.MONTH);
Day = c.get(Calendar.DAY_OF_MONTH);
@Override
public void onClick(View view) {
// TODO Auto-generated method stub
switch (view.getId()) {
case R.id.btnDate:
CustomDialogFragment dialog = new CustomDialogFragment(
NewComplain.this);
Bundle bundle = new Bundle();
bundle.putInt("dialog_id", DATE_DIALOG_ID);
bundle.putInt("year", Year);
bundle.putInt("month", Month);
bundle.putInt("day", Day);
dialog.setArguments(bundle);
dialog.show(getFragmentManager(), "dialog");
break;
}
}
我的CustomDialogFragment类是这样的
package xont.virtusel.v4.controller.sale;
import android.app.Activity;
import android.app.DatePickerDialog;
import android.app.DatePickerDialog.OnDateSetListener;
import android.app.Dialog;
import android.content.Context;
import android.os.Bundle;
import android.support.v4.app.DialogFragment;
import android.support.v4.app.Fragment;
public class CustomDialogFragment extends DialogFragment {
public static final int DATE_PICKER = 1;
public static final int TIME_PICKER = 2;
public static final int DIALOG = 3;
private OnDateSetListener listener_;
Context mContext;
String mMessage;
boolean finishActivity;
// private Fragment mCurrentFragment;
Activity mActivity;
/**
* this constructor is used for datepicker & Timepicker
*/
public CustomDialogFragment(Fragment fragment) {
// mCurrentFragment = fragment;
}
public CustomDialogFragment(Activity mActivity) {
this.mActivity = mActivity;
}
/**
* this constructor is used for simple dialog fragment
*/
public CustomDialogFragment(Context context, String message,
final boolean finishActivity) {
mContext = context;
mMessage = message;
this.finishActivity = finishActivity;
}
public Dialog onCreateDialog(Bundle savedInstanceState) {
Bundle bundle = new Bundle();
bundle = getArguments();
int id = bundle.getInt("dialog_id");
switch (id) {
case DATE_PICKER:
return new DatePickerDialog(getActivity(),
(OnDateSetListener) mActivity, bundle.getInt("year"),
bundle.getInt("month"), bundle.getInt("day"));
}
// Define your custom dialog or alert dialog here and return it.
return new Dialog(getActivity());
}
}
在我的活动类中,我实现了以下代码段,以在文本视图中设置所选日期
private void updateDisplay() {
System.out.println("===updateDisplay===");
String str_date = "";
if ((Month + 1) >= 10) {
if (Day < 10) {
str_date = Year + "-" + (Month + 1) + "-0" + Day;
} else {
str_date = Year + "-" + (Month + 1) + "-" + Day;
}
} else {
if (Day < 10) {
str_date = Year + "-0" + (Month + 1) + "-0" + Day;
} else {
str_date = Year + "-0" + (Month + 1) + "-" + Day;
}
}
date.setText("" + str_date);
}
@Override
public void onDateSet(android.widget.DatePicker view, int year, int monthOfYear, int dayOfMonth) {
// TODO Auto-generated method stub
System.out.println("1233");
Year = year;
Month = monthOfYear;
Day = dayOfMonth;
updateDisplay();
}
private void updateDisplay(){
System.out.println(“==updateDisplay==”);
字符串str_date=“”;
如果((月+1)>=10){
如果(第10天){
str_date=年+“-”+(月+1)+“-0”+天;
}否则{
str_date=年+“-”+(月+1)+“-”+天;
}
}否则{
如果(第10天){
str_date=年+“-0”+(月+1)+“-0”+天;
}否则{
str_date=年+“-0”+(月+1)+“-”+天;
}
}
date.setText(“+str_date”);
}
@凌驾
public void onDateSet(android.widget.DatePicker视图,整数年,整数月,整数月){
//TODO自动生成的方法存根
系统输出打印项次(“1233”);
年=年;
月=月/年;
天=月的第几天;
updateDisplay();
}
我的活动由OnDateSetListener执行。
有人能解释一下如何解决这个问题吗
Thanx Previous是否调用onDateSet?另外,不要将活动传递给片段,这真的不是一个好主意。阅读上下文以及如何正确地传递它。我不这么认为。在日期选择器中设置日期时不应该调用它吗?我应该单独叫它吗?这就是我要问的…当日期设置好的时候它会被调用吗?我看不出来,私有OnDateSetListener设置好了。。。所以,它不能被称为