Android 如何将Actionbar项目与Viewpager+;碎片
我正试图弄清楚如何根据viewpager中加载的片段实现Actionbar项。下面是我的代码,我只是想找出使用ABS+ViewPager+片段的最佳实践 主要活动 在我的主要活动中,我尝试了以下方法,但无法正确获得代码Android 如何将Actionbar项目与Viewpager+;碎片,android,android-fragments,actionbarsherlock,android-viewpager,menuitem,Android,Android Fragments,Actionbarsherlock,Android Viewpager,Menuitem,我正试图弄清楚如何根据viewpager中加载的片段实现Actionbar项。下面是我的代码,我只是想找出使用ABS+ViewPager+片段的最佳实践 主要活动 在我的主要活动中,我尝试了以下方法,但无法正确获得代码 @Override public boolean onCreateOptionsMenu(Menu menu) { MenuInflater Inflater = getSupportMenuInflater(); Inflater.inflate(R.menu.
@Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater Inflater = getSupportMenuInflater();
Inflater.inflate(R.menu.menu, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem Item) {
final int current = ((ViewPager) mFragments).getCurrentItem();
String currentId = current == 0 ? FRAGMENT1: (current == 1 ? FRAGMENT2: FRAGMENT3);
//WebView web = (WebView) findViewById(currentId);
switch (Item.getItemId()) {
case R.id.menu_back:
// web.goBack();
return true;
case R.id.menu_forward:
//web.goForward();
return true;
case R.id.menu_refresh:
//web.reload();
return true;
}
return super.onOptionsItemSelected(Item);
}
我正试图弄清楚如何根据viewpager中加载的片段实现Actionbar项
这是自动发生的。只需让片段调用设置选项菜单(true)
,然后实现onCreateOptions菜单()
和onoptionItemSelected()
。Fragment*PagerAdapter
将安排在页面更改后重新填充操作栏,从上一页删除操作栏项目,并从新的当前页面引入操作栏项目
演示操作栏项目的来去,因为只有奇数页(用户看到的基于1的索引)有操作栏项目。这解决了我的问题,我现在可以使用每个片段中的菜单项,但是,您是否知道如何在片段之间共享菜单项,以便我只能创建3个菜单项,然后它们将在任何片段视图中与webview交互?
public class MainPagerAdapter extends FragmentPagerAdapter {
private List<Fragment> mFragments;
private String[] titles = new String[] {"System", "Community", "Support"};
private int mCount = titles.length;
public MainPagerAdapter(FragmentManager fm, List<Fragment> f) {
super(fm);
mFragments = f;
}
@Override
public Fragment getItem(int position) {
return mFragments.get(position);
}
@Override
public int getCount() {
return mCount;
}
@Override
public CharSequence getPageTitle(int position) {
return titles[position];
}
public class Fragment1 extends SherlockFragment {
WebView web;
static ProgressBar progressBar;
@Override
public View onCreateView(LayoutInflater inf, ViewGroup grp, Bundle icicle) {
View v = inf.inflate(R.layout.activity_main, grp, false);
web = (WebView) v.findViewById(R.id.webView);
progressBar = (ProgressBar) v.findViewById(R.id.progressBar1);
return v;
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
web.setWebViewClient(new SpecialWebView(progressBar));
web.setWebChromeClient(new SpecialWebChromeClient(progressBar));
// Progress Bar - End
WebSettings websettings = web.getSettings();
websettings.setBuiltInZoomControls(false);
web.setBackgroundColor(Color.parseColor("#f2f2f2"));
websettings.setUseWideViewPort(true);
websettings.setJavaScriptEnabled(true);
websettings.setAllowFileAccess(true);
websettings.setDomStorageEnabled(true);
websettings.setLoadWithOverviewMode(true);
websettings.setSavePassword(true);
web.loadUrl("http://www.google.com");
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater Inflater = getSupportMenuInflater();
Inflater.inflate(R.menu.menu, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem Item) {
final int current = ((ViewPager) mFragments).getCurrentItem();
String currentId = current == 0 ? FRAGMENT1: (current == 1 ? FRAGMENT2: FRAGMENT3);
//WebView web = (WebView) findViewById(currentId);
switch (Item.getItemId()) {
case R.id.menu_back:
// web.goBack();
return true;
case R.id.menu_forward:
//web.goForward();
return true;
case R.id.menu_refresh:
//web.reload();
return true;
}
return super.onOptionsItemSelected(Item);
}