您好我已经在android中对日期和时间进行了验证但是当我没有选择日期时它会显示错误消息但是从datepicker中选择日期之后再次显示错误如何解决这里是我的代码
public class ProfileDetail extends AppCompatActivity implements DatePickerDialog.OnDateSetListener {
Toolbar toolbar;
String description, str_requirement, str_date, str_time, str_noofperson, str_address;
TextView txt_description;
EditText et_requirment, date_pick, time_set, et_no_of_person, et_address_service;
Calendar calendar;
DatePickerDialog datePickerDialog;
int Year, Month, Day;
Button btn_submit;
@RequiresApi(api = Build.VERSION_CODES.N)
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.profile_details);
Bundle extras = getIntent().getExtras();
description = extras.getString("description");
txt_description = (TextView) findViewById(R.id.txtservicedetails);
toolbar = (Toolbar) findViewById(R.id.toolbarforprofile);
setSupportActionBar(toolbar);
et_requirment = (EditText) findViewById(R.id.editText_requirement);
et_no_of_person = (EditText) findViewById(R.id.et_noofperson);
et_address_service = (EditText) findViewById(R.id.et_serviceaddress);
date_pick = (EditText) findViewById(R.id.et_dateof_visit);
time_set = (EditText) findViewById(R.id.et_time);
btn_submit = (Button) findViewById(R.id.btn_submit);
calendar = Calendar.getInstance();
Year = calendar.get(Calendar.YEAR);
Month = calendar.get(Calendar.MONTH);
Day = calendar.get(Calendar.DAY_OF_MONTH);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setDisplayShowHomeEnabled(true);
toolbar.setTitle("Need-Hlp");
txt_description.setText(description);
//date_pick.setInputType(InputType.TYPE_NULL);
toolbar.setNavigationOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intentfromprevious = new Intent(ProfileDetail.this, NavigationDrawer.class);
intentfromprevious.putExtra("description", description);
intentfromprevious.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intentfromprevious.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
intentfromprevious.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
startActivity(intentfromprevious);
}
});
date_pick.setOnClickListener(new View.OnClickListener() {
@RequiresApi(api = Build.VERSION_CODES.N)
@Override
public void onClick(View v) {
datePickerDialog = DatePickerDialog.newInstance(ProfileDetail.this, Year, Month, Day);
datePickerDialog.setThemeDark(false);
datePickerDialog.showYearPickerFirst(false);
datePickerDialog.setAccentColor(Color.parseColor("#009688"));
datePickerDialog.setTitle("Select Date From DatePickerDialog");
datePickerDialog.show(getFragmentManager(), "DatePickerDialog");
}
});
time_set.setOnClickListener(new View.OnClickListener() {
@RequiresApi(api = Build.VERSION_CODES.N)
@Override
public void onClick(View v) {
Calendar mcurrentTime = Calendar.getInstance();
int hour = mcurrentTime.get(Calendar.HOUR_OF_DAY);
int minute = mcurrentTime.get(Calendar.MINUTE);
TimePickerDialog mTimePicker;
mTimePicker = new TimePickerDialog(ProfileDetail.this, new TimePickerDialog.OnTimeSetListener() {
@Override
public void onTimeSet(TimePicker timePicker, int selectedHour, int selectedMinute) {
time_set.setText(selectedHour + ":" + selectedMinute);
}
}, hour, minute, true);
mTimePicker.setTitle("Select Time");
mTimePicker.show();
}
});
//////Submit button onclicklistener
btn_submit.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (et_requirment.getText().toString().equals("")) {
et_requirment.setError("Requirement cannot be blank");
et_requirment.requestFocus();
return;
}
if (date_pick.getText().toString().equals("")) {
date_pick.setError("Date cannot be blank");
//date_pick.requestFocus();
return;
}
if (time_set.getText().toString().equals("")) {
time_set.setError("Time cannot be blank");
//edittext_phone.requestFocus();
return;
}
if (et_no_of_person.getText().toString().toString().equals("")) {
et_no_of_person.setError("No of person cannot be blank");
//edittext_phone.requestFocus();
return;
}
if (et_address_service.getText().toString().equals("")) {
et_address_service.setError("Address cannot be blank");
//edittext_Password.requestFocus();
return;
}
if (!et_requirment.getText().toString().trim().equals("") && !date_pick.getText().toString().equals("") &&
time_set.getText().toString().trim().equals("") &&
et_no_of_person.getText().toString().trim().equals("") &&
!et_address_service.getText().toString().equals("")) {
Toast.makeText(ProfileDetail.this, "You Request Submitted", Toast.LENGTH_SHORT).show();
Intent intentforlist = new Intent(ProfileDetail.this, NavigationDrawer.class);
intentforlist.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intentforlist.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
intentforlist.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
startActivity(intentforlist);
}
}
});
}
Here Is MY XML:
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="-45.5dp"
android:layout_marginRight="16dp"
android:layout_marginTop="32dp">
<LinearLayout
android:id="@+id/profile_details"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/demo"
android:orientation="vertical"
android:padding="16dp">
<TextView
android:id="@+id/txtservicedetails"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginBottom="20dp"
android:layout_marginTop="40dp"
android:gravity="center"
android:text="@string/app_name"
android:textColor="#fff"
android:textSize="20sp"
android:textStyle="bold" />
<EditText
android:id="@+id/editText_requirement"
android:layout_width="match_parent"
android:layout_height="70dp"
android:layout_margin="3dp"
android:background="#fff"
android:digits="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890"
android:gravity="top"
android:hint="Your Requirement"
android:inputType="textMultiLine|textCapSentences"
android:padding="6dp"
android:textColor="#000" />
<EditText
android:id="@+id/et_dateof_visit"
android:layout_width="match_parent"
android:layout_height="40dp"
android:layout_margin="5dp"
android:background="#fff"
android:hint="Date Of Visit"
android:inputType="date"
android:maxLines="1"
android:padding="5dp"
android:textColor="#000" />
<EditText
android:id="@+id/et_time"
android:layout_width="match_parent"
android:layout_height="40dp"
android:layout_margin="5dp"
android:background="#fff"
android:hint="Time Of Visit"
android:inputType="time"
android:maxLines="1"
android:padding="5dp"
android:textColor="#000" />
<EditText
android:id="@+id/et_noofperson"
android:layout_width="match_parent"
android:layout_height="40dp"
android:layout_margin="5dp"
android:background="#fff"
android:focusable="true"
android:hint="No Of Person You Need"
android:inputType="number"
android:maxLength="2"
android:maxLines="1"
android:padding="5dp"
android:singleLine="true"
android:text="" />
<EditText
android:id="@+id/et_serviceaddress"
android:layout_width="match_parent"
android:layout_height="70dp"
android:layout_margin="5dp"
android:background="#fff"
android:digits="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890/-,:"
android:focusable="true"
android:gravity="top"
android:hint="Service Address"
android:inputType="textMultiLine|textCapSentences"
android:maxLines="4"
android:padding="10dp"
android:singleLine="true"
android:text="" />
</LinearLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginBottom="20dp"
android:layout_marginTop="-20dp"
android:gravity="center">
<Button
android:id="@+id/btn_submit"
style="@style/Widget.AppCompat.Button.Colored"
android:layout_width="wrap_content"
android:layout_height="40dp"
android:background="@drawable/rounded_green"
android:text="Submit"
android:textStyle="bold" />
答案 0 :(得分：0)
在您的日期添加此点击希望它适合您
final Calendar myCalendar = Calendar.getInstance();
DatePickerDialog.OnDateSetListener date = new DatePickerDialog.OnDateSetListener() {
@Override
public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
// TODO Auto-generated method stub
myCalendar.set(Calendar.YEAR, year);
myCalendar.set(Calendar.MONTH, monthOfYear);
myCalendar.set(Calendar.DAY_OF_MONTH, dayOfMonth);
String myFormat = "yyyy-MM-dd"; // your format
SimpleDateFormat sdf = new SimpleDateFormat(myFormat, Locale.getDefault());
date_pick.setText(sdf.format(myCalendar.getTime()));
}
};
new DatePickerDialog(this, date, myCalendar.get(Calendar.YEAR), myCalendar.get(Calendar.MONTH), myCalendar.get(Calendar.DAY_OF_MONTH)).show();