【核心代码】
package com.xzh.ui;
import android.app.AlertDialog;
import android.app.AlertDialog.Builder;
import android.app.TabActivity;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.net.ConnectivityManager;
import android.net.NetworkInfo.State;
import android.os.Bundle;
import android.view.GestureDetector;
import android.view.GestureDetector.SimpleOnGestureListener;
import android.view.KeyEvent;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.Window;
import android.widget.FrameLayout;
import android.widget.RadioButton;
import android.widget.TabHost;
import android.widget.TabHost.OnTabChangeListener;
import android.widget.TabWidget;
import android.widget.ViewFlipper;
import com.example.livinghelper.R;
import com.xzh.utils.AnimationTabHostUtils;
import com.xzh.utils.CustomerDialog;
import com.xzh.utils.ExitManager;
/*本类主要实现和底部导航条tabhost，实现视图却换*/
public class MainActivity extends TabActivity implements OnTabChangeListener {
public static MainActivity instance;
private TabHost tabHost;
private RadioButton main_tab_traffic, main_tab_living, main_tab_property,
main_tab_wiki, main_tab_more;
private GestureDetector gestureDetector;//手势滑动
private AnimationTabHostUtils mTabHostUtils;
private TabWidget mTabWidget;
private FrameLayout frameLayout;
private ViewFlipper viewFlipper;
/** 记录当前分页ID */
private int currentTabID = 0;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN);
this.requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.activity_main);
instance=this;
//检测网络情况
CheckNetwork();
mTabHostUtils = (AnimationTabHostUtils) findViewById(android.R.id.tabhost);
//初始化底部的tabhost
initTab();
init();
mTabWidget = (TabWidget) findViewById(android.R.id.tabs);
System.out.println(mTabWidget.getChildCount() "======mTabWidget.getChildCount()=====");
tabHost.setOnTabChangedListener(this);
onTabChanged("traffic");
//手势滑动事件处理
gestureDetector = new GestureDetector(new TabHostTouch());
new View.OnTouchListener() {
public boolean onTouch(View v, MotionEvent event) {
if (gestureDetector.onTouchEvent(event)) {
return true;
}
return false;
}
};
frameLayout = mTabHostUtils.getTabContentView();
ExitManager.getInstance().addActivity(this);
}
//初始化按钮
public void init(){
main_tab_traffic=(RadioButton)findViewById(R.id.main_tab_traffic);
main_tab_property = (RadioButton) findViewById(R.id.main_tab_property);
main_tab_living = (RadioButton) findViewById(R.id.main_tab_living);
main_tab_wiki = (RadioButton) findViewById(R.id.main_tab_wiki);
main_tab_more = (RadioButton) findViewById(R.id.main_tab_more);
//主页
main_tab_traffic.setOnClickListener(new OnClickListener() {
public void onClick(View view) {
tabHost.setCurrentTabByTag("traffic");
}
});
//理财
main_tab_property.setOnClickListener(new OnClickListener() {
public void onClick(View view) {
tabHost.setCurrentTabByTag("property");
}
});
//生活
main_tab_living.setOnClickListener(new OnClickListener() {
public void onClick(View view) {
tabHost.setCurrentTabByTag("living");
}
});
//百科
main_tab_wiki.setOnClickListener(new OnClickListener() {
public void onClick(View view) {
tabHost.setCurrentTabByTag("wiki");
}
});
//更多
main_tab_more.setOnClickListener(new OnClickListener() {
public void onClick(View view) {
tabHost.setCurrentTabByTag("more");
}
});
}
//初始化底部的tab表
public void initTab(){
tabHost=getTabHost();
System.out.println(tabHost "===tabHost==");
tabHost.addTab(tabHost.newTabSpec("traffic").setIndicator("traffic")
.setContent(new Intent(this, MainActivityTraffic.class)));
tabHost.addTab(tabHost.newTabSpec("property").setIndicator("property")
.setContent(new Intent(this, MainActivityProperty.class)));
tabHost.addTab(tabHost.newTabSpec("living").setIndicator("living")
.setContent(new Intent(this, MainActivityLiving.class)));
tabHost.addTab(tabHost.newTabSpec("wiki").setIndicator("wiki")
.setContent(new Intent(this, MainActivityWiki.class)));
tabHost.addTab(tabHost.newTabSpec("more").setIndicator("more")
.setContent(new Intent(this, MainActivityChat.class)));
mTabHostUtils.setOpenAnimation(true);
}
//自定义触摸响应
private class TabHostTouch extends SimpleOnGestureListener {
/** 滑动翻页所需距离 */
private static final int ON_TOUCH_DISTANCE = 80;
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,
float velocityY) {
if (e1.getX() - e2.getX() <= (-ON_TOUCH_DISTANCE)) {
currentTabID = mTabHostUtils.getCurrentTab() - 1;
// tabHost.setCurrentTab(currentTabID-1<0?0:currentTabID-1);
if (currentTabID < 0) {
currentTabID = mTabHostUtils.getTabCount() - 1;
}
} else if (e1.getX() - e2.getX() >= ON_TOUCH_DISTANCE) {
currentTabID = mTabHostUtils.getCurrentTab() 1;
if (currentTabID >= mTabHostUtils.getTabCount()) {
currentTabID = 0;
}
}
tabHost=getTabHost();
tabHost.setCurrentTab(currentTabID);
return false;
}
}
@Override
public boolean dispatchTouchEvent(MotionEvent event) {
if (gestureDetector.onTouchEvent(event)) {
event.setAction(MotionEvent.ACTION_CANCEL);
}
return super.dispatchTouchEvent(event);
}
//使用手势滑动的时候，执行本方法
@Override
public void onTabChanged(String tabId) {
if(tabId.equals("traffic")){
main_tab_traffic.setBackgroundResource(R.drawable.home_btn_bg_s);
main_tab_living.setBackgroundResource(R.drawable.head_bg);
main_tab_property.setBackgroundResource(R.drawable.head_bg);
main_tab_wiki.setBackgroundResource(R.drawable.head_bg);
main_tab_more.setBackgroundResource(R.drawable.head_bg);
}else if(tabId.equals("living")){
main_tab_living.setBackgroundResource(R.drawable.home_btn_bg_s);
main_tab_property.setBackgroundResource(R.drawable.head_bg);
main_tab_wiki.setBackgroundResource(R.drawable.head_bg);
main_tab_more.setBackgroundResource(R.drawable.head_bg);
main_tab_traffic.setBackgroundResource(R.drawable.head_bg);
}else if(tabId.equals("property")){
main_tab_property.setBackgroundResource(R.drawable.home_btn_bg_s);
main_tab_wiki.setBackgroundResource(R.drawable.head_bg);
main_tab_more.setBackgroundResource(R.drawable.head_bg);
main_tab_traffic.setBackgroundResource(R.drawable.head_bg);
main_tab_living.setBackgroundResource(R.drawable.head_bg);
}else if(tabId.equals("wiki")){
main_tab_wiki.setBackgroundResource(R.drawable.home_btn_bg_s);
main_tab_more.setBackgroundResource(R.drawable.head_bg);
main_tab_traffic.setBackgroundResource(R.drawable.head_bg);
main_tab_living.setBackgroundResource(R.drawable.head_bg);
main_tab_property.setBackgroundResource(R.drawable.head_bg);
}else{
main_tab_more.setBackgroundResource(R.drawable.home_btn_bg_s);
main_tab_traffic.setBackgroundResource(R.drawable.head_bg);
main_tab_living.setBackgroundResource(R.drawable.head_bg);
main_tab_property.setBackgroundResource(R.drawable.head_bg);
main_tab_wiki.setBackgroundResource(R.drawable.head_bg);
}
//由于采用下面的方法出现不能将String-->int类型，只能用上面这种笨
/*int tabID = Integer.valueOf(tabId);
System.out.println(tabId "====tabId=====");
for (int i = 0; i < mTabWidget.getChildCount(); i ) {
if (i == tabID) {
mTabWidget.getChildAt(i).setBackgroundResource(
R.drawable.home_btn_bg_s);
} else {
mTabWidget.getChildAt(i).setBackgroundResource(
R.drawable.head_bg);
}
}*/
}
//退出程序
public boolean dispatchKeyEvent( KeyEvent event) {
if (event.getAction()==KeyEvent.ACTION_DOWN&&event.getKeyCode()==KeyEvent.KEYCODE_BACK) {
if (event.getRepeatCount() == 0) {
CustomerDialog.Builder alertDialog = new CustomerDialog.Builder(
MainActivity.this);
alertDialog.setIcon(R.drawable.ic_menu_question);
alertDialog.setTitle("是否退出程序");
alertDialog.setMessage("是否确定退出本程序 ！");
alertDialog.setPositiveButton("确定",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int which) {
ExitManager.getInstance().exit();
android.os.Process.killProcess(android.os.Process.myPid());
}
});
alertDialog.setNegativeButton("取消",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int which) {
dialog.dismiss();
}
});
alertDialog.create().show();
}
}
return super.dispatchKeyEvent(event);
}
//没有网络的时候跳转到设置界面
public boolean CheckNetwork() {
boolean flag = false;
ConnectivityManager connManager = (ConnectivityManager) this.getSystemService(Context.CONNECTIVITY_SERVICE);
//检测3g网络是否可用
State mobile = connManager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE).getState();
//检测wifi是否可用
State wifi = connManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI).getState();
if (connManager.getActiveNetworkInfo() != null)
flag = connManager.getActiveNetworkInfo().isAvailable();//如果得到的network可用
else {
Builder b = new AlertDialog.Builder(this).setTitle("没有可用的网络")
.setMessage("请开启GPRS或WIFI");
b.setPositiveButton("设置", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
//进入无线网络配置界面
Intent intent = new Intent("android.settings.WIRELESS_SETTINGS");
startActivity(intent);
}
}).setNeutralButton("取消", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
dialog.cancel();
}
}).create();
b.show();
}
return flag;
}
}
