我有一个与ViewPager兼容的嵌入式PagerTitleStrip元素,它可以正常工作,但单击PagerTitleStrip并没有按预期切换到相应 View 。我已经浏览了文档,但是该小部件没有将onClickListener附加到PagerTitleStrip对象的任何内置方法。这似乎有点不可思议,因为这可能是大多数人所期望的。
所以问题是如何使标题栏可点击?
我也试图找出是否有办法在所选标题栏下显示粗的下划线,而尽可能不添加TabHost。
这是代码:
主布局view_pager.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<android.support.v4.view.ViewPager
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/my_view_pager"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<android.support.v4.view.PagerTitleStrip
android:id="@+id/pager_title_strip"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="top"
android:background="#ccc"
android:textColor="#fff" />
</android.support.v4.view.ViewPager>
</LinearLayout>
进入ViewPager的两个 fragment 布局:
fragment_connect.xml(第二个相同,因此不包含在内)
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TextView
android:id="@+id/text_view_connect"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="connect"
android:textAppearance="?android:attr/textAppearanceLarge" />
</LinearLayout>
主要 Activity 类StandardViewPagerActivity.java:
package com.example.standardviewpager;
import java.util.List;
import java.util.Vector;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.view.PagerTitleStrip;
import android.support.v4.view.ViewPager;
import android.view.Menu;
public class StandardViewPagerActivity extends FragmentActivity {
private MyPagerAdapter pagerAdapter;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.view_pager);
ViewPager myPager = (ViewPager) findViewById(R.id.my_view_pager);
PagerTitleStrip pagerStrip = (PagerTitleStrip) findViewById(R.id.pager_title_strip);
// TODO: add underline for selected title strip
myPager.setAdapter(pagerAdapter);
myPager.setCurrentItem(0);
initialisePaging();
}
private void initialisePaging() {
List<Fragment> fragments = new Vector<Fragment>();
fragments.add(Fragment.instantiate(this, ConnectFragment.class.getName()));
fragments.add(Fragment.instantiate(this, ProfilesFragment.class.getName()));
this.pagerAdapter = new MyPagerAdapter(super.getSupportFragmentManager(), fragments);
ViewPager pager = (ViewPager) super.findViewById(R.id.my_view_pager);
pager.setAdapter(this.pagerAdapter);
}
}
适配器类MyPagerAdapter.java:
package com.example.standardviewpager;
import java.util.List;
import android.os.Parcelable;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.LayoutInflater;
import android.view.View;
public class MyPagerAdapter extends FragmentPagerAdapter {
private List<Fragment> fragments;
public MyPagerAdapter(FragmentManager supportFragmentManager, List<Fragment> fragments) {
super(supportFragmentManager);
this.fragments = fragments;
}
@Override
public int getCount() {
return this.fragments.size();
}
@Override
public void destroyItem(View arg0, int arg1, Object arg2) {
((ViewPager) arg0).removeView((View) arg2);
}
@Override
public Parcelable saveState() {
return null;
}
@Override
public CharSequence getPageTitle(int position) {
return String.format("Title %d", position);
}
@Override
public Fragment getItem(int position) {
return this.fragments.get(position);
}
}
最后,还有两个相同的Fragment实现,仅包括第一个-ConnectFragment.java。
package com.example.standardviewpager;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.LinearLayout;
import android.widget.TextView;
public class ConnectFragment extends Fragment {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
LinearLayout layout = (LinearLayout) inflater.inflate(R.layout.fragment_connect, container, false);
TextView textView = (TextView) layout.findViewById(R.id.text_view_connect);
textView.setText("onCreateView() Connect");
return (View)layout;
}
}
最佳答案
您可以对其进行 fork ,并创建可单击的自己的实现。或者,您切换到PagerTabStrip
,这是可单击的。或者,您切换到ViewPagerIndicator指示器之一,该指示器恰好是可单击的并且具有您喜欢的外观。
引用the documentation for PagerTitleStrip
:
关于android - 处理基于兼容性 fragment 的ViewPager中的PagerTitleStrip单击,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/14091228/