[英]Android : why custom action bar and action bar tabs combine?
我對android 4.0的自定義操作欄和操作欄選項卡有問題。當我的應用程序在4.4中運行時(在Nexus 7.0選項卡中),它可以正常工作,但4.0設備存在問題。自定義操作欄和選項卡結合在一起,並顯示在整個動作欄。 像這樣
類
package com.android.timeline;
@SuppressLint({ "SimpleDateFormat", "NewApi" })
public class MainActivity extends FragmentActivity implements ActionBar.TabListener
{
public int width;
private ActionBar actionBar;
private TextView actionBarTitle;
private TabPagerAdapter TabAdapter;
ArrayList<Fragment> fragmentlist = new ArrayList<Fragment>();
private ViewPager Tab;
private String[] tabs = { "About", "Watch Next", "Related" };
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
fragmentlist.add(new AboutDetail());
fragmentlist.add(new WatchNextDetail());
fragmentlist.add(new RelatedDetail());
currentAboutDetail = fragmentlist.get(0);
TabAdapter = new TabPagerAdapter(getSupportFragmentManager());
Tab = (ViewPager) findViewById(R.id.pager);
Tab.setOffscreenPageLimit(2);
pagerchangeListener();
setupActionBar();
}
private void pagerchangeListener() {
Tab.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
@Override
public void onPageSelected(int position) {
actionBar.setSelectedNavigationItem(position);
}
});
Tab.setAdapter(TabAdapter);
}
@Override
public void onSaveInstanceState(Bundle savedInstanceState) {
super.onSaveInstanceState(savedInstanceState);
savedInstanceState.putInt("mMyCurrentPosition", Tab.getCurrentItem());
}
@Override
public void onRestoreInstanceState(Bundle savedInstanceState) {
super.onRestoreInstanceState(savedInstanceState);
mMyCurrentPosition = savedInstanceState.getInt("mMyCurrentPosition");
// where mMyCurrentPosition should be a public value in your activity.
}
private void setupActionBar() {
actionBar = getActionBar();
actionBar.setDisplayHomeAsUpEnabled(false);
actionBar.setDisplayShowCustomEnabled(true);
actionBar.setDisplayShowHomeEnabled(false);
actionBar.setDisplayShowTitleEnabled(false);
View cView = getLayoutInflater().inflate(R.layout.actionbartitle, null);
actionBar.setDisplayOptions(ActionBar.DISPLAY_SHOW_HOME | ActionBar.DISPLAY_SHOW_CUSTOM);
actionBarTitle = (TextView) cView.findViewById(R.id.timeline);
getActionBar().setIcon(R.drawable.log);
getActionBar().setBackgroundDrawable(new ColorDrawable(Color.parseColor("#f16c81")));
actionBar.setCustomView(cView);
actionBar.setHomeButtonEnabled(false);
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
final ImageView actionBarDropDownImg = (ImageView) cView
.findViewById(R.id.pageback);
final ImageView share = (ImageView) cView.findViewById(R.id.setting);
final ImageView font = (ImageView) cView.findViewById(R.id.font);
OnClickListener neww = new OnClickListener() {
@Override
public void onClick(View v) {
if (v == actionBarDropDownImg) {
finish();
overridePendingTransition(R.anim.anim_left,R.anim.anim_right);
}
if (v == font) {
((AboutDetail) currentAboutDetail).fontIncreament();
}
}
};
actionBarDropDownImg.setOnClickListener(neww);
share.setOnClickListener(neww);
font.setOnClickListener(neww);
for (String tab_name : tabs) {
actionBar.addTab(actionBar.newTab().setText(tab_name)
.setTabListener(this));
}
}
@Override
public void onCreateContextMenu(ContextMenu menu, View v,
ContextMenuInfo menuInfo) {
super.onCreateContextMenu(menu, v, menuInfo);
}
public class TabPagerAdapter extends FragmentStatePagerAdapter {
public TabPagerAdapter(FragmentManager fm) {
super(fm);
// TODO Auto-generated constructor stub
}
@Override
public Fragment getItem(int i) {
Log.e("LOG", "Position || " + i);
return fragmentlist.get(i);
}
@Override
public int getCount() {
return fragmentlist.size(); // No of Tabs
}
@Override
public void destroyItem(View container, int position, Object object) {
}
}
@Override
public void onTabSelected(android.app.ActionBar.Tab tab,
FragmentTransaction ft) {
// TODO Auto-generated method stub
Tab.setCurrentItem(tab.getPosition());
}
@Override
public void onTabUnselected(android.app.ActionBar.Tab tab,
FragmentTransaction ft) {
// TODO Auto-generated method stub
}
@Override
public void onTabReselected(android.app.ActionBar.Tab tab,
FragmentTransaction ft) {
// TODO Auto-generated method stub
}
}
請幫助我,謝謝。
我在橫向模式下遇到了同樣的問題,在這里找到了解決方案: http : //andreimihu.com/blog/2013/10/17/android-always-embed-tabs-in-actionbar/
基本上,作者希望將標簽頁放在操作欄中,而我和我希望將標簽頁放在外部。 因此,只需將方法調用更改為false(上述鏈接中的代碼,但稍作修改):
// This is where the magic happens!
public void forceTabs() {
try {
final ActionBar actionBar = getActionBar();
final Method setHasEmbeddedTabsMethod = actionBar.getClass()
.getDeclaredMethod("setHasEmbeddedTabs", boolean.class);
setHasEmbeddedTabsMethod.setAccessible(true);
setHasEmbeddedTabsMethod.invoke(actionBar, false);
}
catch(final Exception e) {
// Handle issues as needed: log, warn user, fallback etc
// This error is safe to ignore, standard tabs will appear.
}
}
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