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Android初学第76天

androidIT知识Android初学

少年恃险若平地，独倚长剑凌清秋。这篇文章主要讲述Android初学第76天相关的知识，希望能为你提供帮助。
android初学第76天【Android初学第76天】16_CameraIntent
代码 Criminalintent
DatePickerFragment.java

package com.bignerdranch.android.criminalintent; import android.app.Activity; import android.app.Dialog; import android.content.DialogInterface; import android.content.Intent; import android.os.Bundle; import android.support.v4.app.DialogFragment; import android.support.v7.app.AlertDialog; import android.view.LayoutInflater; import android.view.View; import android.widget.DatePicker; import java.util.Calendar; import java.util.Date; import java.util.GregorianCalendar; public class DatePickerFragment extends DialogFragment {public static final String EXTRA_DATE = "com.bignerdranch.android.criminalintent.date"; private static final String ARG_DATE = "date"; private DatePicker mDatePicker; public static DatePickerFragment newInstance(Date date) { Bundle args = new Bundle(); args.putSerializable(ARG_DATE, date); DatePickerFragment fragment = new DatePickerFragment(); fragment.setArguments(args); return fragment; }@Override public Dialog onCreateDialog(Bundle savedInstanceState) { Date date = (Date) getArguments().getSerializable(ARG_DATE); Calendar calendar = Calendar.getInstance(); calendar.setTime(date); int year = calendar.get(Calendar.YEAR); int month = calendar.get(Calendar.MONTH); int day = calendar.get(Calendar.DAY_OF_MONTH); View v = LayoutInflater.from(getActivity()) .inflate(R.layout.dialog_date, null); mDatePicker = (DatePicker) v.findViewById(R.id.dialog_date_picker); mDatePicker.init(year, month, day, null); return new AlertDialog.Builder(getActivity()) .setView(v) .setTitle(R.string.date_picker_title) .setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { int year = mDatePicker.getYear(); int month = mDatePicker.getMonth(); int day = mDatePicker.getDayOfMonth(); Date date = new GregorianCalendar(year, month, day).getTime(); sendResult(Activity.RESULT_OK, date); } }) .create(); }private void sendResult(int resultCode, Date date) { if (getTargetFragment() == null) { return; }Intent intent = new Intent(); intent.putExtra(EXTRA_DATE, date); getTargetFragment() .onActivityResult(getTargetRequestCode(), resultCode, intent); } }


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