从 Json 响应更改日期和时间时间格式

Question

如何从 json 响应中解析日期并在 textview 中设置。

我的 Json 响应：

{"createdate":"2016-03-14 04:00:01"}

我在 Textview 中想要的内容：

14 年 3 月下午 4:00

我的列表视图适配器：

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.HashMap;

public class ListViewAdapter extends BaseAdapter {

    Context ctx;
    ArrayList<HashMap<String, String>> arraylist;
    LayoutInflater inflater;

    TextView tvPlaceName, tvTime;
    String longitude, latitude;

    String out;

    ListViewAdapter(Context ctx, ArrayList<HashMap<String, String>> arraylist) {

        this.ctx = ctx;
        this.arraylist = arraylist;
    }


    @Override
    public int getCount() {
        return arraylist.size();
    }

    @Override
    public Object getItem(int position) {
        return arraylist.get(position);
    }

    @Override
    public long getItemId(int position) {
        return 0;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        inflater = (LayoutInflater) ctx
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);

        View itemView = inflater.inflate(R.layout.listitem, parent, false);

        tvPlaceName = (TextView) itemView.findViewById(R.id.tvPlaceName);
        tvTime = (TextView) itemView.findViewById(R.id.tvTime);



        //  Log.d("uname", arraylist.get(position).get("Username"));
        tvPlaceName.setText(arraylist.get(position).get("alert_message"));
         tvTime.setText(arraylist.get(position).get("createdate"));


        longitude = arraylist.get(position).get("longitude");
        latitude = arraylist.get(position).get("latitude");


        return itemView;
    }



    private String convertTime(String time) {

        SimpleDateFormat format = new SimpleDateFormat("MM-dd HH:mm");
        SimpleDateFormat format1 = new SimpleDateFormat("hh:mm aa MM-dd");
        java.util.Date date = null;

        try {
            date = format.parse(time);
        } catch (ParseException e) {
            e.printStackTrace();
        }

        String convertedDate = format1.format(date);

        return convertedDate;
    }

}

我已获取我的回复，但我不知道如何以特定方式格式化日期。

欢迎提出建议

Answer 1

这样做

tvTime.setText(convertTime(arraylist.get(position).get("createdate")));

使用以下代码

 private String convertTime(String time) {

        SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        SimpleDateFormat format1 = new SimpleDateFormat("hh:mm aa MM-dd");
        java.util.Date date = null;

        try {
            date = format.parse(time);
        } catch (ParseException e) {
            e.printStackTrace();
        }

        String convertedDate = format1.format(date);

        return convertedDate;
    }

Answer 2

使用以下代码

以下代码返回日历对象

public static Calendar StringDateConverter(String date) {
    DateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
    df.setTimeZone(TimeZone.getTimeZone("UTC"));
    try {
        return dateToCalendar(df.parse(date.toUpperCase()));
    } catch (ParseException e) {
        e.printStackTrace();
    }
    return null;
}

private static Calendar dateToCalendar(Date date) {
        Calendar calendar = Calendar.getInstance();
        calendar.setTime(date);
        return calendar;
    }

使用此代码将日历事件转换为字符串

public static String ConvertDateToDate(Calendar calendar) {
    DateFormat df = new SimpleDateFormat("HH:mmaa MM/dd", Locale.getDefault());
    return df.format(calendar.getTime());
}

Answer 3

public String convertDateFormat() {
        String formatedDate ="";
        SimpleDateFormat inputFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

        SimpleDateFormat outputFormat = new SimpleDateFormat("HH:mmaa MM/dd");

        Date date = null;
        try {
            date = inputFormat.parse(parseJsonAndGetCreateDateString());            
            formatedDate = outputFormat.format(date);

        } catch (java.text.ParseException e) {
            e.printStackTrace();
        }


        return formatedDate;
    }

public String parseJsonAndGetCreateDateString(){
String response = "{\"createdate\":\"2016-03-14 04:00:01\"}";
String createDate = "";
try{

JSONObject obj = new JSONObject(response);
createDate = obj.getString("createdate");

}catch(Exception e){
e.printStackTrace();
}
return createDate;
}

Answer 4

private String getFormate(String date) throws ParseException {
    Date d = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss", Locale.ENGLISH).parse(date);
    Log.d("Date", String.valueOf(d));
    Calendar cal = Calendar.getInstance();
    cal.setTime(d);
    String monthName = new SimpleDateFormat("hh:mmaa MM/yyyy").format(cal.getTime());
    return monthName;
}

并使用它来获取您的格式

        try {
            String myFormate = getFormate(d);
            Log.d("date", myFormate);
        } catch (ParseException e) {
            e.printStackTrace();
        }

这里d是String d = "2016-03-14 04:00:01";

Answer 5

精确你的结果

SimpleDateFormat dateFormat2 = new SimpleDateFormat("hh:mma MM/dd");
            SimpleDateFormat hh_mm_ss = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

             try {
                                Date dat1 = hh_mm_ss.parse("2016-03-14 04:00:01");
                                String out = dateFormat2.format(dat1);
                                System.out.println(out);
                            } catch (ParseException e) {
                                e.printStackTrace();
                            }

Answer 6

试试这个：

SimpleDateFormat dateFormat2 = new SimpleDateFormat("hh:mm:ss a MM/dd");
SimpleDateFormat hh_mm_ss = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

 try {
     Date dat1 =hh_mm_ss.parse(arraylist.get(position).get("createdate"));
                    String out = dateFormat2.format(dat1);
                   tvTime.setText(out);
                } catch (ParseException e) {
                    e.printStackTrace();
                }

它将转换您的日期格式并为您提供类似“时间 04:00:01 AM 03/14”的输出