我的 android 应用程序有一个情况。场景是我正在使用视图页面适配器,其中我有 3 个页面实际上是片段。我的问题是我想从对话活动中更新这些。对话活动包含来自的列表我想更新片段的 onclick 事件。
首先,是否有可能,如果是,请加入并帮助我。
干杯高拉夫
这是我的视图页面适配器
/*
* Copyright (C) 2012 Gaurav Rawat
*
*/
package com.punksrant.ifinddryday.adapter;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import com.punksrant.ifinddryday.fragment.AllFragment;
import com.punksrant.ifinddryday.fragment.HomeFragment;
import com.punksrant.ifinddryday.fragment.SynchFragment;
import com.punksrant.ifinddryday.utils.IFindDryDaysConstants;
import com.viewpagerindicator.TitleProvider;
public class ViewPagerAdapter extends FragmentPagerAdapter implements
TitleProvider {
private static String[] titles = IFindDryDaysConstants.titles;
public ViewPagerAdapter(FragmentManager fm) {
super(fm);
}
@Override
public String getTitle(int position) {
return titles[position % titles.length].toUpperCase();
}
@Override
public int getCount() {
return titles.length;
}
@Override
public Fragment getItem(int position) {
Fragment fragment;
switch (position) {
case 0:
fragment = HomeFragment.newInstance();
break;
case 1:
fragment = AllFragment.newInstance();
break;
case 2:
fragment = SynchFragment.newInstance(titles[position
% titles.length]);
break;
default:
fragment = HomeFragment.newInstance();
}
return fragment;
}
}
' and in this I want to refresh the home fragment from my dialog class
'/*
* Copyright (C) 2012 Gaurav Rawat
*
*/
package com.punksrant.ifinddryday.activity;
import roboguice.inject.ContentView;
import roboguice.inject.InjectView;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.TextView;
import com.github.rtyley.android.sherlock.roboguice.activity.RoboSherlockFragmentActivity;
import com.google.inject.Inject;
import com.punksrant.ifinddryday.model.Coordinates;
import com.punksrant.ifinddryday.utils.DryDayJSONResParser;
import com.punksrant.ifinddryday.utils.IFindDryDayViewUtils;
@ContentView(R.layout.statedialog)
public class Dialog extends RoboSherlockFragmentActivity {
@InjectView(R.id.dialogList)
ListView listView;
@Inject
SharedPreferences preferences;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
String[] states = DryDayJSONResParser.getSupportedStates();
listView.setAdapter(new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1, android.R.id.text1, states));
listView.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
String state = ((TextView) view).getText().toString();
Coordinates coordinates = IFindDryDayViewUtils
.getCoordinatesFromPreferences(preferences);
coordinates.setState(state);
IFindDryDayViewUtils.updateCityFromLocation(coordinates,
preferences);
finish();
}
});
}
},