Android基于ViewPager Fragment实现选项卡
时间：2020-12-01 12:05:13 | 栏目：Android代码 | 点击：次
先给大家展示效果图：
1.新建TestFragmen继承Fragment
public class TestFragment extends Fragment {
private static final String TAG = "TestFragment";
private String hello;// = "hello android";
private String defaultHello = "default value";
private Map<string, object=""> maplist;
static TestFragment newInstance(String s, Map<string, object=""> map) {
TestFragment newFragment = new TestFragment();
// Bundle bundle = new Bundle();
// bundle.putString("hello", s);
// newFragment.setArguments(bundle);
final SerializableMap myMap=new SerializableMap();
myMap.setMap(map);
Bundle bundle = new Bundle();
bundle.putSerializable("map", myMap);
newFragment.setArguments(bundle);
return newFragment;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Log.d(TAG, "TestFragment-----onCreate");
Bundle args = getArguments();
// hello = args != null ? args.getString("hello") : defaultHello;
Bundle bundle = getArguments();
SerializableMap serializableMap = (SerializableMap) bundle.get("map");
maplist =serializableMap.getMap();
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {
Log.d(TAG, "TestFragment-----onCreateView");
View view = inflater.inflate(R.layout.lay1, container, false);
// TextView viewhello = (TextView) view.findViewById(R.id.tv_hello);
//viewhello.setText(maplist.get("userid")+"time");
ListView lv = (ListView) view.findViewById(R.id.listView3);
ContactAdapter hc = new ContactAdapter(getActivity().getApplicationContext(),getContact());
lv.setAdapter(hc);
lv.setCacheColorHint(0);
return view;
}
private ArrayList<contact> getContact(){
ArrayList<contact> hcList = new ArrayList<contact>();
for(int i=0;i<10;i++)
{
Contact c0 = new Contact();
c0.setTxPath(R.drawable.more_game+"");
c0.setName(maplist.get("userid")+" 年龄："+maplist.get("age"));
hcList.add(c0);
}
return hcList;
}
@Override
public void onDestroy() {
super.onDestroy();
Log.d(TAG, "TestFragment-----onDestroy");
}
}
</contact></contact></contact></string,></string,>
2.MyFragmentPagerAdapter继承FragmentPagerAdapter
public class MyFragmentPagerAdapter extends FragmentPagerAdapter {
private ArrayList<fragment> fragmentsList;
public MyFragmentPagerAdapter(FragmentManager fm) {
super(fm);
}
public MyFragmentPagerAdapter(FragmentManager fm, ArrayList<fragment> fragments) {
super(fm);
this.fragmentsList = fragments;
}
@Override
public int getCount() {
return fragmentsList.size();
}
@Override
public Fragment getItem(int arg0) {
return fragmentsList.get(arg0);
}
@Override
public int getItemPosition(Object object) {
return super.getItemPosition(object);
}
}
</fragment></fragment>
3.MainActivity 要继承FragmentActivity
public class MainActivity extends FragmentActivity {
private static final String TAG = "MainActivity";
private ViewPager mPager;
private ArrayList<fragment> fragmentsList;
private ImageView ivBottomLine;
private TextView tvTabActivity, tvTabGroups, tvTabFriends, tvTabChat;
private int currIndex = 0;
private int bottomLineWidth;
private int offset = 0;
private int position_one;
private int position_two;
private int position_three;
private Resources resources;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.main);
resources = getResources();
InitWidth();
InitTextView();
InitViewPager();
}
private void InitTextView() {
tvTabActivity = (TextView) findViewById(R.id.tv_tab_activity);
tvTabGroups = (TextView) findViewById(R.id.tv_tab_groups);
tvTabFriends = (TextView) findViewById(R.id.tv_tab_friends);
tvTabChat = (TextView) findViewById(R.id.tv_tab_chat);
tvTabActivity.setOnClickListener(new MyOnClickListener(0));
tvTabGroups.setOnClickListener(new MyOnClickListener(1));
tvTabFriends.setOnClickListener(new MyOnClickListener(2));
tvTabChat.setOnClickListener(new MyOnClickListener(3));
}
private void InitViewPager() {
mPager = (ViewPager) findViewById(R.id.vPager);
fragmentsList = new ArrayList<fragment>();
Map<string, object=""> paramMap = new HashMap<string, object="">();
paramMap.put("userid","小洪");
paramMap.put("age",23);
Map<string, object=""> paramMap2 = new HashMap<string, object="">();
paramMap2.put("userid","vatty");
paramMap2.put("age",24);
Map<string, object=""> paramMap3 = new HashMap<string, object="">();
paramMap3.put("userid","小明");
paramMap3.put("age",25);
Map<string, object=""> paramMap4 = new HashMap<string, object="">();
paramMap4.put("userid","hongshengpeng.com");
paramMap4.put("age",26);
Fragment activityfragment = TestFragment.newInstance("Hello Activity.",paramMap);
Fragment groupFragment = TestFragment.newInstance("Hello Group.",paramMap2);
Fragment friendsFragment=TestFragment.newInstance("Hello Friends.",paramMap3);
Fragment chatFragment=TestFragment.newInstance("Hello Chat.",paramMap4);
fragmentsList.add(activityfragment);
fragmentsList.add(groupFragment);
fragmentsList.add(friendsFragment);
fragmentsList.add(chatFragment);
mPager.setAdapter(new MyFragmentPagerAdapter(getSupportFragmentManager(), fragmentsList));
mPager.setCurrentItem(0);
mPager.setOnPageChangeListener(new MyOnPageChangeListener());
}
private void InitWidth() {
ivBottomLine = (ImageView) findViewById(R.id.iv_bottom_line);
bottomLineWidth = ivBottomLine.getLayoutParams().width;
Log.d(TAG, "cursor imageview width=" + bottomLineWidth);
DisplayMetrics dm = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(dm);
int screenW = dm.widthPixels;
offset = (int) ((screenW / 4.0 - bottomLineWidth) / 2);
Log.i("MainActivity", "offset=" + offset);
position_one = (int) (screenW / 4.0);
position_two = position_one * 2;
position_three = position_one * 3;
}
public class MyOnClickListener implements View.OnClickListener {
private int index = 0;
public MyOnClickListener(int i) {
index = i;
}
@Override
public void onClick(View v) {
mPager.setCurrentItem(index);
}
};
public class MyOnPageChangeListener implements OnPageChangeListener {
@Override
public void onPageSelected(int arg0) {
Animation animation = null;
switch (arg0) {
case 0:
if (currIndex == 1) {
animation = new TranslateAnimation(position_one, 0, 0, 0);
tvTabGroups.setTextColor(resources.getColor(R.color.lightwhite));
} else if (currIndex == 2) {
animation = new TranslateAnimation(position_two, 0, 0, 0);
tvTabFriends.setTextColor(resources.getColor(R.color.lightwhite));
} else if (currIndex == 3) {
animation = new TranslateAnimation(position_three, 0, 0, 0);
tvTabChat.setTextColor(resources.getColor(R.color.lightwhite));
}
tvTabActivity.setTextColor(resources.getColor(R.color.white));
break;
case 1:
if (currIndex == 0) {
animation = new TranslateAnimation(0, position_one, 0, 0);
tvTabActivity.setTextColor(resources.getColor(R.color.lightwhite));
} else if (currIndex == 2) {
animation = new TranslateAnimation(position_two, position_one, 0, 0);
tvTabFriends.setTextColor(resources.getColor(R.color.lightwhite));
} else if (currIndex == 3) {
animation = new TranslateAnimation(position_three, position_one, 0, 0);
tvTabChat.setTextColor(resources.getColor(R.color.lightwhite));
}
tvTabGroups.setTextColor(resources.getColor(R.color.white));
break;
case 2:
if (currIndex == 0) {
animation = new TranslateAnimation(0, position_two, 0, 0);
tvTabActivity.setTextColor(resources.getColor(R.color.lightwhite));
} else if (currIndex == 1) {
animation = new TranslateAnimation(position_one, position_two, 0, 0);
tvTabGroups.setTextColor(resources.getColor(R.color.lightwhite));
} else if (currIndex == 3) {
animation = new TranslateAnimation(position_three, position_two, 0, 0);
tvTabChat.setTextColor(resources.getColor(R.color.lightwhite));
}
tvTabFriends.setTextColor(resources.getColor(R.color.white));
break;
case 3:
if (currIndex == 0) {
animation = new TranslateAnimation(0, position_three, 0, 0);
tvTabActivity.setTextColor(resources.getColor(R.color.lightwhite));
} else if (currIndex == 1) {
animation = new TranslateAnimation(position_one, position_three, 0, 0);
tvTabGroups.setTextColor(resources.getColor(R.color.lightwhite));
} else if (currIndex == 2) {
animation = new TranslateAnimation(position_two, position_three, 0, 0);
tvTabFriends.setTextColor(resources.getColor(R.color.lightwhite));
}
tvTabChat.setTextColor(resources.getColor(R.color.white));
break;
}
currIndex = arg0;
animation.setFillAfter(true);
animation.setDuration(300);
ivBottomLine.startAnimation(animation);
}
@Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
}
@Override
public void onPageScrollStateChanged(int arg0) {
}
}
}</string,></string,></string,></string,></string,></string,></string,></string,></fragment></fragment>
4.分别新建lay1.xml、 lay2.xml 、lay3.xml
lay1.xml
<!--?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:background="#fff" android:orientation="vertical">
<textview android:id="@+id/tv_hello" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="TextView" android:visibility="gone">
<listview android:id="@+id/listView3" android:layout_width="match_parent" android:layout_height="wrap_content" android:cachecolorhint="@android:color/transparent" android:divider="@drawable/reader_item_divider" android:listselector="@android:color/transparent">
</listview>
</textview></linearlayout>
lay2.xml
<!--?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" android:background="#FF8684"> </linearlayout>
lay3.xml与lay2.xml类型
<!--?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" android:background="#1586FF"> </linearlayout>
main.xml
<!--?xml version="1.0" encoding="utf-8"?-->
<linearlayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:umadsdk="http://schemas.android.com/apk/res/com.LoveBus" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical">
<linearlayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical">
<linearlayout android:layout_width="match_parent" android:layout_height="48dip" android:background="@drawable/android_title_bg">
<imageview android:id="@+id/imageView1" android:layout_width="36dip" android:layout_height="36dip" android:layout_gravity="center_vertical" android:layout_marginleft="10dip" android:src="@drawable/more_game">
<textview android:id="@+id/textView1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center_vertical" android:layout_marginleft="10dip" android:text="乐够GO" android:textappearance="?android:attr/textAppearanceLarge">
<imageview android:id="@+id/imageView2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center_vertical" android:paddingleft="10dip" android:src="@drawable/status_online" android:visibility="gone">
</imageview></textview></imageview></linearlayout>
<linearlayout android:id="@+id/linearLayout1" android:layout_width="fill_parent" android:layout_height="wrap_content" android:paddingbottom="5dip" android:paddingtop="10dip" android:background="@color/coral">
<textview android:id="@+id/tv_tab_activity" android:layout_width="fill_parent" android:layout_height="fill_parent" android:layout_weight="1.0" android:gravity="center" android:text="@string/tab_1" android:textcolor="@color/white" android:textsize="18sp">
<textview android:id="@+id/tv_tab_groups" android:layout_width="fill_parent" android:layout_height="fill_parent" android:layout_weight="1.0" android:gravity="center" android:text="@string/tab_2" android:textcolor="@color/lightwhite" android:textsize="18sp">
<textview android:id="@+id/tv_tab_friends" android:layout_width="fill_parent" android:layout_height="fill_parent" android:layout_weight="1.0" android:gravity="center" android:text="@string/tab_3" android:textcolor="@color/lightwhite" android:textsize="18sp">
<textview android:id="@+id/tv_tab_chat" android:layout_width="fill_parent" android:layout_height="fill_parent" android:layout_weight="1.0" android:gravity="center" android:text="@string/tab_4" android:textcolor="@color/lightwhite" android:textsize="18sp">
</textview></textview></textview></textview></linearlayout>
<linearlayout android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_gravity="bottom" android:orientation="vertical" android:paddingbottom="3dip">
<imageview android:id="@+id/iv_bottom_line" android:layout_width="40dip" android:layout_height="2dip" android:layout_marginleft="20dip" android:scaletype="matrix" android:src="#fff">
</imageview></linearlayout>
</linearlayout>
</android.support.v4.view.viewpager></linearlayout>
ps：ViewPager + Fragment实现滑动标签页
ViewPager 结合Fragment实现一个Activity里包含多个可滑动的标签页，每个标签页可以有独立的布局及响应。
activity_main.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="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:id="@+id/tv_guid1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1.0"
android:gravity="center"
android:text="特性1"
android:textSize="18sp"/>
<TextView
android:id="@+id/tv_guid2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1.0"
android:gravity="center"
android:text="特性2"
android:textSize="18sp"/>
<TextView
android:id="@+id/tv_guid3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1.0"
android:gravity="center"
android:text="特性3 "
android:textSize="18sp"/>
<TextView
android:id="@+id/tv_guid4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1.0"
android:gravity="center"
android:text="特性4"
android:textSize="18sp"/>
</LinearLayout>
<ImageView
android:id="@+id/cursor"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:scaleType="matrix"
android:src="@drawable/cursor"/>
<android.support.v4.view.ViewPager
android:id="@+id/viewpager"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:flipInterval="30"
android:persistentDrawingCache="animation"/>
</LinearLayout>
MainActivity.java
package com.example.viewpagernfragment;
import java.util.ArrayList;
import android.graphics.BitmapFactory;
import android.graphics.Matrix;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.view.ViewPager;
import android.support.v4.view.ViewPager.OnPageChangeListener;
import android.util.DisplayMetrics;
import android.view.Menu;
import android.view.View;
import android.view.animation.Animation;
import android.view.animation.TranslateAnimation;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
public class MainActivity extends FragmentActivity {
private ViewPager mPager;
private ArrayList<Fragment> fragmentList;
private ImageView image;
private TextView view1, view2, view3, view4;
private int currIndex;//当前页卡编号
private int bmpW;//横线图片宽度
private int offset;//图片移动的偏移量
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
InitTextView();
InitImage();
InitViewPager();
}
/*
* 初始化标签名
*/
public void InitTextView(){
view1 = (TextView)findViewById(R.id.tv_guid1);
view2 = (TextView)findViewById(R.id.tv_guid2);
view3 = (TextView)findViewById(R.id.tv_guid3);
view4 = (TextView)findViewById(R.id.tv_guid4);
view1.setOnClickListener(new txListener(0));
view2.setOnClickListener(new txListener(1));
view3.setOnClickListener(new txListener(2));
view4.setOnClickListener(new txListener(3));
}
public class txListener implements View.OnClickListener{
private int index=0;
public txListener(int i) {
index =i;
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
mPager.setCurrentItem(index);
}
}
/*
* 初始化图片的位移像素
*/
public void InitImage(){
image = (ImageView)findViewById(R.id.cursor);
bmpW = BitmapFactory.decodeResource(getResources(), R.drawable.cursor).getWidth();
DisplayMetrics dm = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(dm);
int screenW = dm.widthPixels;
offset = (screenW/4 - bmpW)/2;
//imgageview设置平移，使下划线平移到初始位置（平移一个offset）
Matrix matrix = new Matrix();
matrix.postTranslate(offset, 0);
image.setImageMatrix(matrix);
}
/*
* 初始化ViewPager
*/
public void InitViewPager(){
mPager = (ViewPager)findViewById(R.id.viewpager);
fragmentList = new ArrayList<Fragment>();
Fragment btFragment= new ButtonFragment();
Fragment secondFragment = TestFragment.newInstance("this is second fragment");
Fragment thirdFragment = TestFragment.newInstance("this is third fragment");
Fragment fourthFragment = TestFragment.newInstance("this is fourth fragment");
fragmentList.add(btFragment);
fragmentList.add(secondFragment);
fragmentList.add(thirdFragment);
fragmentList.add(fourthFragment);
//给ViewPager设置适配器
mPager.setAdapter(new MyFragmentPagerAdapter(getSupportFragmentManager(), fragmentList));
mPager.setCurrentItem(0);//设置当前显示标签页为第一页
mPager.setOnPageChangeListener(new MyOnPageChangeListener());//页面变化时的监听器
}
public class MyOnPageChangeListener implements OnPageChangeListener{
private int one = offset *2 +bmpW;//两个相邻页面的偏移量
@Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
// TODO Auto-generated method stub
}
@Override
public void onPageScrollStateChanged(int arg0) {
// TODO Auto-generated method stub
}
@Override
public void onPageSelected(int arg0) {
// TODO Auto-generated method stub
Animation animation = new TranslateAnimation(currIndex*one,arg0*one,0,0);//平移动画
currIndex = arg0;
animation.setFillAfter(true);//动画终止时停留在最后一帧，不然会回到没有执行前的状态
animation.setDuration(200);//动画持续时间0.2秒
image.startAnimation(animation);//是用ImageView来显示动画的
int i = currIndex + 1;
Toast.makeText(MainActivity.this, "您选择了第"+i+"个页卡", Toast.LENGTH_SHORT).show();
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}
谷歌官方认为，ViewPager应该和Fragment一起使用时，此时ViewPager的适配器是FragmentPagerAdapter，当你实现一个FragmentPagerAdapter,你必须至少覆盖以下方法:
getCount()
getItem()
如果ViewPager没有和Fragment一起，ViewPager的适配器是PagerAdapter，它是基类提供适配器来填充页面ViewPager内部，当你实现一个PagerAdapter,你必须至少覆盖以下方法:
instantiateItem(ViewGroup, int)
destroyItem(ViewGroup, int, Object)
getCount()
isViewFromObject(View, Object)
[java] view plaincopy
package com.example.viewpagernfragment;
import java.util.ArrayList;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
public class MyFragmentPagerAdapter extends FragmentPagerAdapter{
ArrayList<Fragment> list;
public MyFragmentPagerAdapter(FragmentManager fm,ArrayList<Fragment> list) {
super(fm);
this.list = list;
}
@Override
public int getCount() {
return list.size();
}
@Override
public Fragment getItem(int arg0) {
return list.get(arg0);
}
}
[java] view plaincopy
package com.example.viewpagernfragment;
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.Button;
import android.widget.Toast;
public class ButtonFragment extends Fragment{
Button myButton;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.guide_1, container, false);//关联布局文件
myButton = (Button)rootView.findViewById(R.id.mybutton);//根据rootView找到button
//设置按键监听事件
myButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Toast.makeText(ButtonFragment.this.getActivity(), "button is click!", Toast.LENGTH_SHORT).show();
}
});
return rootView;
}
}
[java] view plaincopy
package com.example.viewpagernfragment;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
public class TestFragment extends Fragment {
private static final String TAG = "TestFragment";
private String hello;// = "hello android";
private String defaultHello = "default value";
static TestFragment newInstance(String s) {
TestFragment newFragment = new TestFragment();
Bundle bundle = new Bundle();
bundle.putString("hello", s);
newFragment.setArguments(bundle);
//bundle还可以在每个标签里传送数据
return newFragment;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {
Log.d(TAG, "TestFragment-----onCreateView");
Bundle args = getArguments();
hello = args != null ? args.getString("hello") : defaultHello;
View view = inflater.inflate(R.layout.guide_2, container, false);
TextView viewhello = (TextView) view.findViewById(R.id.tv);
viewhello.setText(hello);
return view;
}
}
<?xml version="1.0" encoding="UTF-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#ff0000ff" >
<Button
android:id="@+id/mybutton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="hit me"
android:gravity="center"/>
</RelativeLayout>
[html] view plaincopy
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:background="#158684" >
<TextView
android:id="@+id/tv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="TextView" />
</RelativeLayout>