在android中设置当前时间
我的问题是它不会在我的模拟器中设置当前时间 那代码怎么了?请帮助我,我是android新手 谢谢在android中设置当前时间,android,Android,我的问题是它不会在我的模拟器中设置当前时间 那代码怎么了?请帮助我,我是android新手 谢谢 在这段代码中,如何将时间转换为12小时格式?您使用的代码是从系统获取时间,而不是设置系统的时间。如果要设置系统时间,则需要使用AlarmManager类。检查以下代码 public void setCurrenttime () { c = Calendar.getInstance(); hour = c.get(Calendar.HOUR_OF_DAY); min =
在这段代码中,如何将时间转换为12小时格式?您使用的代码是从系统获取时间,而不是设置系统的时间。如果要设置系统时间,则需要使用AlarmManager类。检查以下代码
public void setCurrenttime () {
c = Calendar.getInstance();
hour = c.get(Calendar.HOUR_OF_DAY);
min = c.get(Calendar.MINUTE);
String am_pm;
if (hour > 12) {
am_pm = "PM";
} else {
am_pm = "AM";
}
tvDisplayHour=(TextView)findViewById(R.id.hourtext);
tvDisplayHour.setText(hour+":"+ min + " "+ am_pm );
}
您还需要在AndroidManifest.xml
文件中定义以下权限
Calendar c = Calendar.getInstance();
c.set(2014, 8, 15, 12, 34, 56);
AlarmManager am = (AlarmManager) this.getSystemService(Context.ALARM_SERVICE);
am.setTime(c.getTimeInMillis());
试试这个:
您将获得当前时间:-
根据您的要求进行修改:-
<permission android:name="android.permission.SET_TIME"
android:protectionLevel="signature|system"
android:label="@string/permlab_setTime"
android:description="@string/permdesc_setTime" />
public void current_time(){
Calendar cal=Calendar.getInstance();
int hour=cal.get(日历小时);
int minute=cal.get(Calendar.minute);
int am\u pm=cal.get(Calendar.am\u pm);
时间选择器Dialog mTimePicker;
mTimePicker=新时间选择器对话框(InformationActivity.this,
新的TimePickerDialog.OnTimeSetListener(){
@凌驾
公共void onTimeSet(计时器选择器计时器选择器,
int selectedHour,int selectedMinute){
字符串分钟数=”;
int STARTTIMEOUR=所选小时;
int startTimeMinute=选定的分钟数;
如果(选择分钟<10){
分钟数=“0”+所选分钟数;
}否则{
分钟=字符串.valueOf(selectedMinute);
}
如果(已选择小时>12){
选择小时-=12;
字符串timeSet_in=“PM”;
edt_time_in.setText(选择小时+“:”+分钟
+“”+timeSet_in.toString());
选择的小时数+=12;
}else if(selectedHour==0){
选择的小时数+=12;
timeSet_in=“AM”;
edt_time_in.setText(选择小时+“:”+分钟
+“”+timeSet_in.toString());
选择小时-=12;
}否则如果(selectedHour==12){
timeSet_in=“PM”;
edt_time_in.setText(选择小时+“:”+分钟
+“”+timeSet_in.toString());
}否则{
timeSet_in=“AM”;
edt_time_in.setText(选择小时+“:”+分钟
+“”+timeSet_in.toString());
}
arriveLoadHour=所选小时;
arriveLoadMinute=选择的分钟数;
}
},小时,分钟,对);//是的,24小时
setTitle(“选择时间”);
mTimePicker.show();
}
将小时和分钟转换为字符串,然后将字符串传递给setText@NaveedAli他已经在这样做了…感谢代码,但我的问题是我不会使用对话框。。我只想获取时间并将其放入文本视图中,并将其设置为12小时格式。@user3243147
<permission android:name="android.permission.SET_TIME"
android:protectionLevel="signature|system"
android:label="@string/permlab_setTime"
android:description="@string/permdesc_setTime" />
public void current_time() {
Calendar cal = Calendar.getInstance();
int hour = cal.get(Calendar.HOUR_OF_DAY);
int minute = cal.get(Calendar.MINUTE);
int am_pm = cal.get(Calendar.AM_PM);
TimePickerDialog mTimePicker;
mTimePicker = new TimePickerDialog(InformationActivity.this,
new TimePickerDialog.OnTimeSetListener() {
@Override
public void onTimeSet(TimePicker timePicker,
int selectedHour, int selectedMinute) {
String minutes = "";
int startTimeHour = selectedHour;
int startTimeMinute = selectedMinute;
if (selectedMinute < 10) {
minutes = "0" + selectedMinute;
} else {
minutes = String.valueOf(selectedMinute);
}
if (selectedHour > 12) {
selectedHour -= 12;
String timeSet_in = "PM";
edt_time_in.setText(selectedHour + ":" + minutes
+ " " + timeSet_in.toString());
selectedHour += 12;
} else if (selectedHour == 0) {
selectedHour += 12;
timeSet_in = "AM";
edt_time_in.setText(selectedHour + ":" + minutes
+ " " + timeSet_in.toString());
selectedHour -= 12;
} else if (selectedHour == 12) {
timeSet_in = "PM";
edt_time_in.setText(selectedHour + ":" + minutes
+ " " + timeSet_in.toString());
} else {
timeSet_in = "AM";
edt_time_in.setText(selectedHour + ":" + minutes
+ " " + timeSet_in.toString());
}
arriveLoadHour = selectedHour;
arriveLoadMinute = selectedMinute;
}
}, hour, minute, true);// Yes 24 hour time
mTimePicker.setTitle("Select Time");
mTimePicker.show();
}