【发布时间】：2017-05-19 14:51:16
【问题描述】：
我正在编写一个闹钟应用程序。当我保存警报时，它会显示在我的 MainActivity 的 ListView 中。
当我想单击该行并编辑该提醒时，getIntent().getExtras() 始终为空，因此我没有返回的价值
这是我的 MainActivity
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
startActivity(new Intent(MainActivity.this, AlarmChooser.class));
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View row = convertView;
ViewHolder holder = null;
if(row==null || row.getTag()==null){
LayoutInflater inflater = LayoutInflater.from(activity);
row = inflater.inflate(layoutResource,null);
holder=new ViewHolder();
holder.mTitle=(TextView)row.findViewById(R.id.name);
holder.mDate=(TextView)row.findViewById(R.id.dateText);
holder.mTime=(TextView)row.findViewById(R.id.timeText);
row.setTag(holder);
}else{
holder = (ViewHolder)row.getTag();
}
holder.myAlarm = getItem(position);
holder.mTitle.setText(holder.myAlarm.getTitle());
holder.mDate.setText(holder.myAlarm.getRecordDate());
holder.mTime.setText(holder.myAlarm.getRecordTime());
final ViewHolder finalHolder = holder;
holder.mTitle.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Bundle extras = getIntent().getExtras();
if (extras != null) {
String titles = extras.getString("title");
int day = extras.getInt("day");
int month = extras.getInt("month");
int year = extras.getInt("year");
int minute = extras.getInt("minute");
int hour = extras.getInt("hour");
String typeee = cursor.getString(cursor.getColumnIndex(Constants.COLUMN_TYPE));
Log.e("title", titles);
Log.e("year", "value=" + year);
Log.e("month", "value=" + month);
Log.e("day", "value=" + day);
Log.e("hour", "value=" + hour);
Log.e("minute", "value=" + minute);
Log.e("type", typeee);
Class next = null;
switch (typeee) {
case "TimeDateRem":
next = TimeDateRem.class;
break;
case "BirthdayRem":
next = BirthdayRem.class;
break;
case "HolidayReminderKuwait":
next = HolidayReminderKuwait.class;
break;
case "HolidayReminderLebanon":
next = HolidayReminderLebanon.class;
break;
case "HolidayReminderSaudiArabia":
next = HolidayReminderSaudiArabia.class;
break;
case "HolidayReminderUAE":
next = HolidayReminderUAE.class;
break;
}
if (next != null) {
Intent return_intent = new Intent(MainActivity.this, next);
return_intent.putExtra("alarm_title", titles);
return_intent.putExtra("alarm_month", month);
return_intent.putExtra("alarm_year", year);
return_intent.putExtra("alarm_day", day);
return_intent.putExtra("alarm_hour", hour);
return_intent.putExtra("alarm_minute", minute);
// next_intent.putExtra("alarm_content", contenttt);
return_intent.putExtra("FROM_ACTIVITY", "MainActivity");
setResult(RESULT_OK, return_intent);
finish();
} else {
Log.e("ERROR", "ERROR");
}
});
return row;
}
}
class ViewHolder{
MyAlarm myAlarm;
TextView mTitle;
TextView mDate;
TextView mTime;
TextView mContent;
TextView mID;
}
}
这是我的 TimeDateRem，这是我试图从中获取数据的警报 - 未成功
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.reminder_view);
private void setAlarm(Calendar targetCal) {
Intent intent_ForResult = new Intent(TimeDateRem.this, MainActivity.class);
intent_ForResult.putExtra("title", title.getText().toString().trim());
intent_ForResult.putExtra("day", pickerDate.getDayOfMonth());
intent_ForResult.putExtra("month", pickerDate.getMonth());
intent_ForResult.putExtra("year", pickerDate.getYear());
intent_ForResult.putExtra("hour", pickerTime.getCurrentHour());
intent_ForResult.putExtra("minute", pickerTime.getCurrentMinute());
intent_ForResult.putExtra("type", "TimeDateRem");
startActivityForResult(intent_ForResult, REQUEST);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == REQUEST) {
if (resultCode == RESULT_OK) {
Bundle extras = getIntent().getExtras();
String previousActivity = extras.getString("FROM_ACTIVITY");
if (previousActivity.equals("MainActivity")) {
String titles = extras.getString("alarm_title");
int year_intent = extras.getInt("alarm_year");
int month_intent = extras.getInt("alarm_month");
int day_intent = extras.getInt("alarm_day");
int minute_intent = extras.getInt("alarm_minute");
int hour_intent = extras.getInt("alarm_hour");
String year = String.valueOf(year_intent);
String month = String.valueOf(month_intent);
String day = String.valueOf(day_intent);
String minute = String.valueOf(minute_intent);
String hour = String.valueOf(hour_intent);
title.setText(titles);
pickerTime.setCurrentHour(Integer.parseInt(hour));
pickerTime.setCurrentMinute(Integer.parseInt(minute));
pickerDate.init(
Integer.parseInt(year),
Integer.parseInt(month),
Integer.parseInt(day),
null
);
String result = data.getStringExtra("returnData");
Log.e("RESULTRESULRESULT ", result);
}
}
}
}
我正在做的是从 TimeDateRem 获取数据，将其发送到主 Activity，然后将其发送回 TimeDateRem。
如果我想编辑保存的提醒，但bundle somthing = getIntent().getExtras()总是返回null...
【问题讨论】：
-
这段代码无法编译...方法中有一个方法
-
不编译是什么意思.. 哪个部分@cricket_007
-
它不是我的完整代码，正是我需要帮助的地方
-
您不需要完整的代码，但您需要minimal reproducible example。这不是最小的或完整的，也没有可验证的
标签： android android-intent extras