fragment与底部菜单联动
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<LinearLayout
android:id="@+id/fragment_container"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:orientation="vertical" >
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<Button
android:id="@+id/btn_main_fragment_sport"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:background="@null"
android:drawableTop="@drawable/tab_sport_selector"
android:paddingTop="7dp"
android:text="运动"
android:textColor="@color/main_botton_text_color" />
<Button
android:id="@+id/btn_main_fragment_discover"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:background="@null"
android:drawableTop="@drawable/tab_discover_selector"
android:paddingTop="7dp"
android:text="发现"
android:textColor="@color/main_botton_text_color" />
<Button
android:id="@+id/btn_main_fragment_message"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:background="@null"
android:drawableTop="@drawable/tab_msg_selector"
android:paddingTop="7dp"
android:text="消息"
android:textColor="@color/main_botton_text_color" />
<Button
android:id="@+id/btn_main_fragment_me"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:background="@null"
android:drawableTop="@drawable/tab_me_selector"
android:paddingTop="7dp"
android:text="我"
android:textColor="@color/main_botton_text_color" />
</LinearLayout>
</LinearLayout>
package com.tarena.allrun.view;
import com.tarena.allrun.R;
import com.tarena.allrun.TApplication;
import com.tarena.allrun.util.ExceptionUtil;
import android.content.DialogInterface;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
public class MainFragmentActivity extends FragmentActivity {
SportFragment sportFragment;
DiscoverFragment discoverFragment;
MessageFragment messageFragment;
MeFragment meFragment;
Button[] btnArray = new Button[4];
Fragment[] fragmentArray = null;
/**
* 当前显示的fragment
*/
int currentIndex = 0;
/**
* 选中的button,显示下一个fragment
*/
int selectedIndex;
@Override
protected void onCreate(Bundle arg0) {
// TODO Auto-generated method stub
super.onCreate(arg0);
try {
TApplication.listActivity.add(this);
setContentView(R.layout.main_fragment);
setupView();
addListener();
} catch (Exception e) {
ExceptionUtil.handleException(e);
}
}
private void addListener() {
MyButtonListener myButtonListener = new MyButtonListener();
for (int i = 0; i < btnArray.length; i++) {
btnArray[i].setOnClickListener(myButtonListener);
}
}
private void setupView() {
btnArray[0] = (Button) findViewById(R.id.btn_main_fragment_sport);
btnArray[1] = (Button) findViewById(R.id.btn_main_fragment_discover);
btnArray[2] = (Button) findViewById(R.id.btn_main_fragment_message);
btnArray[3] = (Button) findViewById(R.id.btn_main_fragment_me);
btnArray[0].setSelected(true);
sportFragment = new SportFragment();
discoverFragment = new DiscoverFragment();
messageFragment = new MessageFragment();
meFragment = new MeFragment();
fragmentArray = new Fragment[] { sportFragment, discoverFragment,
messageFragment, meFragment };
// 一开始，显示第一个fragment
FragmentManager fragmentManager = getSupportFragmentManager();
FragmentTransaction transaction = fragmentManager.beginTransaction();
transaction.add(R.id.fragment_container, sportFragment);
transaction.show(sportFragment);
transaction.commit();
}
class MyButtonListener implements OnClickListener {
@Override
public void onClick(View v) {
try {
switch (v.getId()) {
case R.id.btn_main_fragment_sport:
selectedIndex = 0;
break;
case R.id.btn_main_fragment_discover:
selectedIndex = 1;
break;
case R.id.btn_main_fragment_message:
selectedIndex = 2;
break;
case R.id.btn_main_fragment_me:
selectedIndex = 3;
break;
}
// 判断单击是不是当前的
if (selectedIndex != currentIndex) {
// 不是当前的
FragmentTransaction transaction = getSupportFragmentManager()
.beginTransaction();
// 当前hide
transaction.hide(fragmentArray[currentIndex]);
// show你选中
if (!fragmentArray[selectedIndex].isAdded()) {
// 以前没添加过
transaction.add(R.id.fragment_container,
fragmentArray[selectedIndex]);
}
// 事务
transaction.show(fragmentArray[selectedIndex]);
transaction.commit();
btnArray[currentIndex].setSelected(false);
btnArray[selectedIndex].setSelected(true);
currentIndex = selectedIndex;
}
} catch (Exception e) {
ExceptionUtil.handleException(e);
}
}
}
}