先把页面布置好,主要是用到viewpager
top1.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="50dp"
android:background="@drawable/top1_bg" >
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_marginLeft="12dp"
android:gravity="center_horizontal"
android:orientation="horizontal" >
<ImageView
android:layout_width="30dp"
android:layout_height="30dp"
android:src="@drawable/actionbar_icon" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="微信"
android:layout_gravity="center_vertical"
android:layout_marginLeft="12dp"
android:textColor="#d3d3d3"
android:textSize="18sp" />
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_marginRight="12dp"
android:layout_centerVertical="true"
android:orientation="horizontal" >
<ImageView
android:layout_width="30dp"
android:layout_height="30dp"
android:src="@drawable/actionbar_search_icon" />
<ImageView
android:layout_width="30dp"
android:layout_height="30dp"
android:src="@drawable/actionbar_add_icon" />
<ImageView
android:layout_width="30dp"
android:layout_height="30dp"
android:src="@drawable/actionbar_more_icon" />
</LinearLayout>
</RelativeLayout>
top2.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="40dp"
android:background="#eee"
android:orientation="vertical" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="37dp"
android:orientation="horizontal" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:id="@+id/ly_1"
android:orientation="horizontal"
android:gravity="center" >
<TextView
android:id="@+id/chat"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="聊天"
android:textColor="#008000" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:gravity="center"
android:id="@+id/ly_2" >
<TextView
android:id="@+id/find"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="发现"
android:textColor="#000000" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:gravity="center"
android:id="@+id/ly_3">
<TextView
android:id="@+id/contact"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="通讯录"
android:textColor="#000000" />
</LinearLayout>
</LinearLayout>
<ImageView
android:id="@+id/id_iv_tabline"
android:layout_width="100dp"
android:layout_height="3dp"
android:background="@drawable/tabline" />
</LinearLayout>
activity_main.xml
<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" >
<include layout="@layout/top1" />
<include
android:layout_height="wrap_content"
layout="@layout/top2" />
<android.support.v4.view.ViewPager
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/id_viewpager"
>
</android.support.v4.view.ViewPager>
</LinearLayout>
MainActivity.java
package com.example.wx_main;
import java.util.ArrayList;
import java.util.List;
import android.graphics.Color;
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.util.Log;
import android.view.Display;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup.LayoutParams;
import android.view.Window;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;
import com.jauker.widget.BadgeView;
public class MainActivity extends FragmentActivity implements OnClickListener{
private ViewPager mp;
private List<Fragment> mDatas;
private TextView t1;
private TextView t2;
private TextView t3;
private BadgeView bv;
private LinearLayout ly_1;
private LinearLayout ly_2;
private LinearLayout ly_3;
private ImageView mTabline;
private int mScreen1_3;
private int mCurrentPageIndex;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.activity_main);
initTabLine();
mp = (ViewPager) findViewById(R.id.id_viewpager);
ly_1 = (LinearLayout) findViewById(R.id.ly_1);
ly_2 = (LinearLayout) findViewById(R.id.ly_2);
ly_3 = (LinearLayout) findViewById(R.id.ly_3);
t1 = (TextView) findViewById(R.id.chat);
t2 = (TextView) findViewById(R.id.find);
t3 = (TextView) findViewById(R.id.contact);
initView();
ly_1.setOnClickListener(this);
ly_2.setOnClickListener(this);
ly_3.setOnClickListener(this);
}
private void initTabLine()
{
mTabline = (ImageView) findViewById(R.id.id_iv_tabline);
Display display = getWindow().getWindowManager().getDefaultDisplay();
DisplayMetrics outMetrics = new DisplayMetrics();
display.getMetrics(outMetrics);
mScreen1_3 = outMetrics.widthPixels / 3;
LayoutParams lp = mTabline.getLayoutParams();
lp.width = mScreen1_3;
mTabline.setLayoutParams(lp);
}
public void initView(){
mDatas = new ArrayList<Fragment>();
First f = new First();
Second s = new Second();
Third t = new Third();
mDatas.add(f);
mDatas.add(s);
mDatas.add(t);
MyAdapter mAdapter = new MyAdapter(getSupportFragmentManager(), mDatas);
mp.setAdapter(mAdapter);
mp.setOnPageChangeListener(new OnPageChangeListener() {
@Override
public void onPageSelected(int position) {
resetTextView();
switch (position) {
case 0:
//第三方包 badgeView
if(bv!=null){
ly_1.removeView(bv);
}
bv = new BadgeView(MainActivity.this);
bv.setBadgeCount(99);
ly_1.addView(bv);
t1.setTextColor(Color.parseColor("#008000"));
break;
case 1:
t2.setTextColor(Color.parseColor("#008000"));
break;
case 2:
t3.setTextColor(Color.parseColor("#008000"));
break;
default:
break;
}
}
private void resetTextView() {
t1.setTextColor(Color.BLACK);
t2.setTextColor(Color.BLACK);
t3.setTextColor(Color.BLACK);
}
@Override
public void onPageScrolled(int position, float positionOffset,
int positionOffsetPx)
{
Log.e("TAG", position + " , " + positionOffset + " , "
+ positionOffsetPx);
LinearLayout.LayoutParams lp = (android.widget.LinearLayout.LayoutParams) mTabline
.getLayoutParams();
// if (mCurrentPageIndex == 0 && position == 0)// 0->1
// {
// lp.leftMargin = (int) (positionOffset * mScreen1_3 + mCurrentPageIndex
// * mScreen1_3);
// } else if (mCurrentPageIndex == 1 && position == 0)// 1->0
// {
// lp.leftMargin = (int) (mCurrentPageIndex * mScreen1_3 + (positionOffset - 1)
// * mScreen1_3);
// } else if (mCurrentPageIndex == 1 && position == 1) // 1->2
// {
// lp.leftMargin = (int) (mCurrentPageIndex * mScreen1_3 + positionOffset
// * mScreen1_3);
// } else if (mCurrentPageIndex == 2 && position == 1) // 2->1
// {
// lp.leftMargin = (int) (mCurrentPageIndex * mScreen1_3 + ( positionOffset-1)
// * mScreen1_3);
// }
lp.leftMargin = (int) ((position+positionOffset)*mScreen1_3);
mTabline.setLayoutParams(lp);
}
@Override
public void onPageScrollStateChanged(int arg0) {
// TODO Auto-generated method stub
}
});
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.ly_1:
mp.setCurrentItem(0);
break;
case R.id.ly_2:
mp.setCurrentItem(1);
break;
case R.id.ly_3:
mp.setCurrentItem(2);
break;
default:
break;
}
}
}
MyAdapter.java
package com.example.wx_main;
import java.util.List;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
public class MyAdapter extends FragmentPagerAdapter{
private List<Fragment>fragList;
private List<String>titleList;
public MyAdapter(FragmentManager fm,List<Fragment> fragList) {
super(fm);
// TODO Auto-generated constructor stub
this.fragList=fragList;
}
@Override
public Fragment getItem(int arg0) {
// TODO Auto-generated method stub
return fragList.get(arg0);
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return fragList.size();
}
@Override
public CharSequence getPageTitle(int position) {
// TODO Auto-generated method stub
return titleList.get(position);
}
}
First/Second/Third.java
package com.example.wx_main;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
public class First extends Fragment{
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// TODO Auto-generated method stub
return inflater.inflate(R.layout.tab01, container,false);
}
}
tab01/tab02/tab03.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:orientation="vertical"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#000000"
android:textStyle="bold"
android:textSize="20sp"
android:text="This is the third fragment"
/>
</LinearLayout>
演示效果: