wemall-mobile是基于WeMall的android app商城，只需要在原商城目录下上传接口文件即可完成服务端的配置，客户端可定制修改。本文分享android开发Fragment中监听onKey事件主要代码，供技术员参考学习。

项目中越来越多的用到Fragment，下面记录一下在ActionBar中监听Fragment的onKey事件。

　　ActionBar实现Onkey事件，判断当前的fragment是哪一个，是不是所需要的Fragment,然后在需要监听OnKey事件的Fragment中写一个静态方法，传递keycode与event事件即可。

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package info.androidhive.tabsswipe;
import info.androidhive.tabsswipe.adapter.TabsPagerAdapter;
import android.annotation.SuppressLint;
import android.app.SearchManager;
import android.content.Context;
import android.support.v7.app.ActionBar;
import android.support.v7.app.ActionBar.Tab;
import android.support.v7.app.ActionBarActivity;
import android.support.v7.widget.SearchView;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.view.MenuItemCompat;
import android.support.v4.view.ViewPager;
import android.util.Log;
import android.view.KeyEvent;
import android.view.Menu;
import android.view.MenuItem;
@SuppressLint("NewApi")
public class MainActivity extends ActionBarActivity implements
ActionBar.TabListener {
private ViewPager viewPager;
private TabsPagerAdapter mAdapter;
private ActionBar actionBar;
private Fragment fg;
// Tab titles
private String[] tabs = { "TopRatedFragment", "GamesFragment", "MoviesFragment" };
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Initilization
viewPager = (ViewPager) findViewById(R.id.pager);
actionBar = getSupportActionBar();
mAdapter = new TabsPagerAdapter(getSupportFragmentManager());
viewPager.setOffscreenPageLimit(3);
viewPager.setAdapter(mAdapter);
actionBar.setHomeButtonEnabled(false);
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
// Adding Tabs
for (String tab_name : tabs) {
actionBar.addTab(actionBar.newTab().setText(tab_name)
.setTabListener(this));
}
/**
* on swiping the viewpager make respective tab selected
* */
viewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
public void onPageSelected(int position) {
// on changing the page
// make respected tab selected
// actionBar.setSelectedNavigationItem(position);
actionBar.selectTab(actionBar.getTabAt(position));
mAdapter.getItem(position);
}
public void onPageScrolled(int arg0, float arg1, int arg2) {
}
public void onPageScrollStateChanged(int arg0) {
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
//
SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
getMenuInflater().inflate(R.menu.main, menu);
MenuItem searchItem = menu.findItem(R.id.action_settings);
SearchView searchview = (SearchView)MenuItemCompat.getActionView(searchItem);
searchview.setSearchableInfo(searchManager.getSearchableInfo(getComponentName()));
return super.onCreateOptionsMenu(menu);
}
public void onTabReselected(Tab arg0,
android.support.v4.app.FragmentTransaction arg1) {
// TODO Auto-generated method stub
}
public void onTabSelected(Tab arg0,
android.support.v4.app.FragmentTransaction arg1) {
// TODO Auto-generated method stub
viewPager.setCurrentItem(arg0.getPosition());
fg = mAdapter.getItem(arg0.getPosition());
Log.d("fg", fg+"");
}
public void onTabUnselected(Tab arg0,
android.support.v4.app.FragmentTransaction arg1) {
// TODO Auto-generated method stub
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
// TODO Auto-generated method stub
Log.d("ActionBar", "OnKey事件");
if(fg instanceof GamesFragment){
GamesFragment.onKeyDown(keyCode, event);
}
return super.onKeyDown(keyCode, event);
}
}

原文详情地址：http://git.oschina.net/einsqing/wemall-mobile

wemall-mobile商城详情地址：http://www.koahub.com/home/product/56

wemall官网地址：http://www.wemallshop.com

WeMall - 开源微商城微信商城商城源码分销商城 b2b2c商城系统

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wemall app商城源码Fragment中监听onKey事件

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