分页显示有两种方式 一种是使用ViewPager 另一种是使用FragmentTransaction
上代码
1 FragmentTransaction实现方式
public class MainActivity extends FragmentActivity implements View.OnClickListener {
private AllPhotosFragment allPhotosFragment;
private MyAlbumFragment myAlbumFragment;
private ShareTimeFragment shareTimeFragment;
private ShotTimeFragment shotTimeFragment;
private ThemeAlbumFragment themeAlbumFragment;
private PersonalFragment personalFragment;
private ImageView test1;
private ImageView test2;
private ImageView test3;
private FragmentManager fragmentManager;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);// 去掉标题栏
setContentView(R.layout.activity_main);
test1 = (ImageView) findViewById(R.id.test1);
test2 = (ImageView) findViewById(R.id.test2);
test3 = (ImageView) findViewById(R.id.test3);
test1.setOnClickListener(this);
test2.setOnClickListener(this);
test3.setOnClickListener(this);
fragmentManager = getSupportFragmentManager();
}
@Override
public void onClick(View v) {
FragmentTransaction transaction = fragmentManager.beginTransaction();
hideFragments(transaction);
switch (v.getId()) {
case R.id.test1:
if (allPhotosFragment == null) {
allPhotosFragment = new AllPhotosFragment();
transaction.add(R.id.id_content, allPhotosFragment);
}else {
transaction.show(allPhotosFragment);
}
break;
case R.id.test2:
if (shareTimeFragment == null) {
shareTimeFragment = new ShareTimeFragment();
transaction.add(R.id.id_content, shareTimeFragment);
}else {
transaction.show(shareTimeFragment);
}
break;
case R.id.test3:
if (personalFragment == null) {
personalFragment = new PersonalFragment();
transaction.add(R.id.id_content, personalFragment);
}else {
transaction.show(personalFragment);
}
break;
}
transaction.commit();
}
private void hideFragments(FragmentTransaction transaction) {
if (allPhotosFragment != null) {
transaction.hide(allPhotosFragment);
}
if (shareTimeFragment != null) {
transaction.hide(shareTimeFragment);
}
if (personalFragment != null) {
transaction.hide(personalFragment);
}
}
}
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.testfragment.MainActivity" > <FrameLayout
android:id="@+id/id_content"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#FFFFFF" /> <RelativeLayout
android:layout_width="match_parent"
android:layout_height="80dp"
android:layout_alignParentTop="true"
android:background="#123456" >
</RelativeLayout> <LinearLayout
android:layout_width="match_parent"
android:layout_height="80dp"
android:layout_alignParentBottom="true"
android:background="#123456"
android:gravity="center_vertical"
android:orientation="horizontal" > <ImageView
android:id="@+id/test1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:src="@drawable/test1" /> <ImageView
android:id="@+id/test2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:src="@drawable/test2" /> <ImageView
android:id="@+id/test3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:src="@drawable/test3" />
</LinearLayout> </RelativeLayout>
public class PersonalFragment extends Fragment{
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_test, container, false);
TextView textView = (TextView) view.findViewById(R.id.tv);
textView.setText("PersonalFragment");
return view;
}
}
Code见https://github.com/huanyi0723/TestFragmentTransaction
2 FragmentPagerAdapter实现方式
public class MainActivity extends FragmentActivity {
private ArrayList<Fragment> fragments;
private ViewPager viewPager;
private MyViewPagerAdapter myViewPagerAdapter;
private AllPhotosFragment allPhotosFragment;
private MyAlbumFragment myAlbumFragment;
private ShareTimeFragment shareTimeFragment;
private ShotTimeFragment shotTimeFragment;
private ThemeAlbumFragment themeAlbumFragment;
private PersonalFragment personalFragment;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);// 去掉标题栏
setContentView(R.layout.activity_main);
viewPager = (ViewPager) findViewById(R.id.viewpager);
fragments = new ArrayList<Fragment>();
allPhotosFragment = new AllPhotosFragment();
myAlbumFragment = new MyAlbumFragment();
shareTimeFragment = new ShareTimeFragment();
shotTimeFragment = new ShotTimeFragment();
themeAlbumFragment = new ThemeAlbumFragment();
personalFragment = new PersonalFragment();
fragments.add(allPhotosFragment);
fragments.add(myAlbumFragment);
fragments.add(shareTimeFragment);
fragments.add(shotTimeFragment);
fragments.add(themeAlbumFragment);
fragments.add(personalFragment);
myViewPagerAdapter = new MyViewPagerAdapter(getSupportFragmentManager(), fragments);
viewPager.setAdapter(myViewPagerAdapter);
viewPager.setCurrentItem(0);
}
}
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.testfragment.MainActivity" > <android.support.v4.view.ViewPager
android:id="@+id/viewpager"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#FFFFFF" /> <RelativeLayout
android:layout_width="match_parent"
android:layout_height="80dp"
android:layout_alignParentTop="true"
android:background="#123456" >
</RelativeLayout> <RelativeLayout
android:layout_width="match_parent"
android:layout_height="80dp"
android:layout_alignParentBottom="true"
android:background="#123456" >
</RelativeLayout> </RelativeLayout>
public class MyViewPagerAdapter extends FragmentPagerAdapter{
private ArrayList<Fragment> fragments;
public MyViewPagerAdapter(FragmentManager fm, ArrayList<Fragment> fragments) {
super(fm);
this.fragments = fragments;
}
@Override
public Fragment getItem(int arg0) {
return fragments.get(arg0);
}
@Override
public int getCount() {
return fragments.size();
}
}
public class AllPhotosFragment extends Fragment {
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_test, container, false);
TextView textView = (TextView) view.findViewById(R.id.tv);
textView.setText("AllPhotosFragment");
return view;
}
}
Code见https://github.com/huanyi0723/TestFragmentPagerAdapter/