上一篇我们简单的介绍了一下RoboGuice的使用(【三】注入框架RoboGuice使用:(Your
First Resource Injection)),今天我们来看下系统服务的使用注解的方法:

为了在Activity中系统服务使用注解，必须实现下面两个步骤:

①:创建继承RoboActivity的Activity

②:使用 @Inject来进行注解系统服务

以下我们来实现一个样例，和上一篇文章样例差点儿相同，我们须要进行实现系统服务。我们相同创建一个继承RoboActivity的Activity，然后使用@Inject进行注解服务，其它的操作就放心交给Roboguice帮你做吧。

class MyActivity extends RoboActivity {

    @Inject Vibrator vibrator;

    @Inject NotificationManager notificationManager;

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        // we can use the instances directly!

        vibrator.vibrate(1000L); // RoboGuice took care of the getSystemService(VIBRATOR_SERVICE)

        notificationManager.cancelAll();

        // rest of your code

从上面能够看出来。RoboGuice知道怎么样依据系统服务来获取该引用对象，假设你想知道RoboGuice内部是怎么样进行绑定服务的能够查看一下DefaultRoboModule.java，以下就是该源码

package roboguice.config;

import java.util.HashMap;

import java.util.Map;

import java.util.Map.Entry;

import roboguice.activity.RoboActivity;

import roboguice.event.EventManager;

import roboguice.event.ObservesTypeListener;

import roboguice.event.eventListener.factory.EventListenerThreadingDecorator;

import roboguice.fragment.FragmentUtil;

import roboguice.inject.AccountManagerProvider;

import roboguice.inject.AssetManagerProvider;

import roboguice.inject.ContentResolverProvider;

import roboguice.inject.ContextScope;

import roboguice.inject.ContextScopedSystemServiceProvider;

import roboguice.inject.ContextSingleton;

import roboguice.inject.ExtrasListener;

import roboguice.inject.HandlerProvider;

import roboguice.inject.InjectExtra;

import roboguice.inject.InjectPreference;

import roboguice.inject.InjectResource;

import roboguice.inject.NullProvider;

import roboguice.inject.PreferenceListener;

import roboguice.inject.ResourceListener;

import roboguice.inject.ResourcesProvider;

import roboguice.inject.SharedPreferencesProvider;

import roboguice.inject.SystemServiceProvider;

import roboguice.inject.ViewListener;

import roboguice.service.RoboService;

import roboguice.util.Ln;

import roboguice.util.LnImpl;

import roboguice.util.LnInterface;

import com.google.inject.Provider;

import com.google.inject.Provides;

import com.google.inject.Singleton;

import com.google.inject.AbstractModule;

import com.google.inject.matcher.Matchers;

import com.google.inject.name.Named;

import com.google.inject.name.Names;

import android.app.Activity;

import android.app.ActivityManager;

import android.app.AlarmManager;

import android.app.Application;

import android.app.DownloadManager;

import android.app.KeyguardManager;

import android.app.NotificationManager;

import android.app.SearchManager;

import android.app.Service;

import android.content.ContentResolver;

import android.content.Context;

import android.content.SharedPreferences;

import android.content.pm.PackageInfo;

import android.content.pm.PackageManager;

import android.content.res.AssetManager;

import android.content.res.Resources;

import android.hardware.SensorManager;

import android.location.LocationManager;

import android.media.AudioManager;

import android.net.ConnectivityManager;

import android.net.wifi.WifiManager;

import android.os.Build;

import android.os.Build.VERSION;

import android.os.Handler;

import android.os.PowerManager;

import android.os.Vibrator;

import android.provider.Settings;

import android.provider.Settings.Secure;

import android.telephony.TelephonyManager;

import android.util.Log;

import android.view.LayoutInflater;

import android.view.WindowManager;

import android.view.inputmethod.InputMethodManager;

/**

 * A Module that provides bindings and configuration to use Guice on Android.

 * Used by {@link roboguice.RoboGuice}.

 *

 * If you wish to add your own bindings, DO NOT subclass this class.  Instead, create a new

 * module that extends AbstractModule with your own bindings, then do something like the following:

 *

 * RoboGuice.setAppliationInjector( app, RoboGuice.DEFAULT_STAGE, Modules.override(RoboGuice.newDefaultRoboModule(app)).with(new MyModule() );

 *

 * @see com.google.inject.util.Modules#override(com.google.inject.Module...)

 * @see roboguice.RoboGuice#getOrCreateBaseApplicationInjector(android.app.Application, com.google.inject.Stage, com.google.inject.Module...)

 * @see roboguice.RoboGuice#newDefaultRoboModule(android.app.Application)

 * @see roboguice.RoboGuice#DEFAULT_STAGE

 *

 * @author Mike Burton

 */

@SuppressWarnings("PMD")

public class DefaultRoboModule extends AbstractModule {

    /**

     * Allows to retrieve the global, inter-context {@link EventManager}.

     * you MUST get the global {@link EventManager} either via a field annotated with {@code @Inject @Named}

     * or {@code getInjector.getInstance(key(EventManager.cass, Names.named())}.

     */

    public static final String GLOBAL_EVENT_MANAGER_NAME = "GlobalEventManager";

    @SuppressWarnings("rawtypes")

    private static Map<Class, String> mapSystemSericeClassToName = new HashMap<Class, String>();

    protected Application application;

    protected ContextScope contextScope;

    protected ResourceListener resourceListener;

    protected ViewListener viewListener;

    static {

        mapSystemSericeClassToName.put(LocationManager.class, Context.LOCATION_SERVICE);

        mapSystemSericeClassToName.put(WindowManager.class, Context.WINDOW_SERVICE);

        mapSystemSericeClassToName.put(ActivityManager.class, Context.ACTIVITY_SERVICE);

        mapSystemSericeClassToName.put(PowerManager.class, Context.POWER_SERVICE);

        mapSystemSericeClassToName.put(AlarmManager.class, Context.ALARM_SERVICE);

        mapSystemSericeClassToName.put(NotificationManager.class, Context.NOTIFICATION_SERVICE);

        mapSystemSericeClassToName.put(KeyguardManager.class, Context.KEYGUARD_SERVICE);

        mapSystemSericeClassToName.put(Vibrator.class, Context.VIBRATOR_SERVICE);

        mapSystemSericeClassToName.put(ConnectivityManager.class, Context.CONNECTIVITY_SERVICE);

        mapSystemSericeClassToName.put(WifiManager.class, Context.WIFI_SERVICE);

        mapSystemSericeClassToName.put(InputMethodManager.class, Context.INPUT_METHOD_SERVICE);

        mapSystemSericeClassToName.put(SensorManager.class, Context.SENSOR_SERVICE);

        mapSystemSericeClassToName.put(TelephonyManager.class, Context.TELEPHONY_SERVICE);

        mapSystemSericeClassToName.put(AudioManager.class, Context.AUDIO_SERVICE);

        if( VERSION.SDK_INT>=Build.VERSION_CODES.GINGERBREAD ) {

            mapSystemSericeClassToName.put(DownloadManager.class, Context.DOWNLOAD_SERVICE);

        }

    }

    public DefaultRoboModule(final Application application, ContextScope contextScope, ViewListener viewListener, ResourceListener resourceListener) {

        this.application = application;

        this.contextScope = contextScope;

        this.viewListener = viewListener;

        this.resourceListener = resourceListener;

    }

    /**

     * Configure this module to define Android related bindings.

     */

    @SuppressWarnings({ "rawtypes", "unchecked" })

    @Override

    protected void configure() {

        final Provider<Context> contextProvider = getProvider(Context.class);

        final EventListenerThreadingDecorator observerThreadingDecorator = new EventListenerThreadingDecorator();

        // Singletons

        bind(ViewListener.class).toInstance(viewListener);

        // ContextSingleton bindings

        bindScope(ContextSingleton.class, contextScope);

        //we need to super bind as we inject the scope by code only, not by annotations

        superbind(ContextScope.class).toInstance(contextScope);

        bind(AssetManager.class).toProvider(AssetManagerProvider.class);

        bind(Context.class).toProvider(NullProvider.<Context>instance()).in(ContextSingleton.class);

        bind(Activity.class).toProvider(NullProvider.<Activity>instance()).in(ContextSingleton.class);

        bind(RoboActivity.class).toProvider(NullProvider.<RoboActivity>instance()).in(ContextSingleton.class);

        bind(Service.class).toProvider(NullProvider.<Service>instance()).in(ContextSingleton.class);

        bind(RoboService.class).toProvider(NullProvider.<RoboService>instance()).in(ContextSingleton.class);

        // Sundry Android Classes

        bind(SharedPreferences.class).toProvider(SharedPreferencesProvider.class);

        bind(Resources.class).toProvider(ResourcesProvider.class);

        bind(ContentResolver.class).toProvider(ContentResolverProvider.class);

        bind(Application.class).toInstance(application);

        bind(EventListenerThreadingDecorator.class).toInstance(observerThreadingDecorator);

        bind(EventManager.class).annotatedWith(Names.named(GLOBAL_EVENT_MANAGER_NAME)).to(EventManager.class).asEagerSingleton();

        bind(Handler.class).toProvider(HandlerProvider.class);

        // System Services

        for( Entry<Class, String> entry : mapSystemSericeClassToName.entrySet() ) {

            bindSystemService(entry.getKey(), entry.getValue());

        }

        // System Services that must be scoped to current context

        bind(LayoutInflater.class).toProvider(new ContextScopedSystemServiceProvider<LayoutInflater>(contextProvider,Context.LAYOUT_INFLATER_SERVICE));

        bind(SearchManager.class).toProvider(new ContextScopedSystemServiceProvider<SearchManager>(contextProvider,Context.SEARCH_SERVICE));

        // Android Resources, Views and extras require special handling

        if( hasInjectionPointsForAnnotation(InjectResource.class) ) {

            bindListener(Matchers.any(), resourceListener);

        }

        if( hasInjectionPointsForAnnotation(InjectExtra.class) ) {

            final ExtrasListener extrasListener = new ExtrasListener(contextProvider);

            bindListener(Matchers.any(), extrasListener);

        }

        //should be bound only if we use InjectView or InjectFragment

        bindListener(Matchers.any(), viewListener);

        final PreferenceListener preferenceListener = new PreferenceListener(contextProvider,application);

        superbind(PreferenceListener.class).toInstance(preferenceListener);

        if( hasInjectionPointsForAnnotation(InjectPreference.class) ) {

            bindListener(Matchers.any(), preferenceListener);

        }

        //should always be bound as ContentViewListener relies on event system

        bindListener(Matchers.any(), new ObservesTypeListener(getProvider(EventManager.class), observerThreadingDecorator));

        requestInjection(observerThreadingDecorator);

        if( isInjectable(Ln.class)) {

            bind(LnInterface.class).to(LnImpl.class);

            //should this be placed in if statement ?

            requestStaticInjection(Ln.class);

        }

        bindDynamicBindings();

    }

    private <T> void bindSystemService(Class<T> c, String androidServiceName) {

        bind(c).toProvider(new SystemServiceProvider<T>(application, androidServiceName ));

    }

    @SuppressWarnings("unchecked")

    private void bindDynamicBindings() {

        // Compatibility library bindings

        if(FragmentUtil.hasSupport) {

            bind(FragmentUtil.supportFrag.fragmentManagerType()).toProvider(FragmentUtil.supportFrag.fragmentManagerProviderType());

        }

        if(FragmentUtil.hasNative) {

            bind(FragmentUtil.nativeFrag.fragmentManagerType()).toProvider(FragmentUtil.nativeFrag.fragmentManagerProviderType());

        }

        if( VERSION.SDK_INT>=Build.VERSION_CODES.ECLAIR ) {

            try {

                @SuppressWarnings("rawtypes")

                Class c = Class.forName("android.accounts.AccountManager");

                bind(c).toProvider(AccountManagerProvider.class);

            } catch( Throwable ex ) {

                Log.e(DefaultRoboModule.class.getName(), "Impossible to bind AccountManager", ex);

            }

        }

    }

    // ----------------------------------

    //  PROVIDER METHODS

    //  used for lazy bindings, when

    //  instance creation is costly.

    // ----------------------------------

    @Provides

    @Singleton

    public PackageInfo providesPackageInfo() {

        try {

            return application.getPackageManager().getPackageInfo(application.getPackageName(),0);

        } catch( PackageManager.NameNotFoundException e ) {

            throw new RuntimeException(e);

        }

    }

    @Provides

    @Named(Settings.Secure.ANDROID_ID)

    public String providesAndroidId() {

        String androidId = null;

        final ContentResolver contentResolver = application.getContentResolver();

        try {

            androidId = Secure.getString(contentResolver, Secure.ANDROID_ID);

        } catch( RuntimeException e) {

            // ignore Stub! errors for Secure.getString() when mocking in test cases since there's no way to mock static methods

            Log.e(DefaultRoboModule.class.getName(), "Impossible to get the android device Id. This may fail 'normally' when testing.", e);

        }

        if(!"".equals(androidId)) {

            return androidId;

        } else {

            throw new RuntimeException("No Android Id.");

        }

    }

}

【四】注入框架RoboGuice使用:(Your First System Service Injection)的更多相关文章

  1. 【九】注入框架RoboGuice使用:(Your First Injected Service and BroadcastReceiver)

    上一篇我们简单的介绍了一下RoboGuice的使用([八]注入框架RoboGuice使用:(Your First Injected Fragment)),今天我们来看下服务(Service)和广播接受 ...

  2. 【五】注入框架RoboGuice使用:(Your First POJO Injection)

    上一篇我们简单的介绍了一下RoboGuice的使用([四]注入框架RoboGuice使用:(Your First System Service Injection)),今天我们来看下普通Java对象的 ...

  3. 【十】注入框架RoboGuice使用:(Your First Testcase)

    上一篇我们简单的介绍了一下RoboGuice的使用([九]注入框架RoboGuice使用:(Your First Injected Service and BroadcastReceiver)),今天 ...

  4. 【十三】注入框架RoboGuice采用:(Logging via Ln)

    上一篇我们简单的介绍了一下RoboGuice的使用([十二]注入框架RoboGuice使用:(Your First Injected ContentProvider)),今天我们来看下Log日志使用. ...

  5. 【六】注入框架RoboGuice使用:(Singletons And ContextSingletons)

    上一篇我们简单的介绍了一下RoboGuice的使用([五]注入框架RoboGuice使用:(Your First POJO Injection)),今天我们来看下单例以及上下文单例(ContextSi ...

  6. 【十一年】注入框架RoboGuice采用:(Your First Injection into a Custom View class)

    上一篇我们简单的介绍了一下RoboGuice的使用([十]注入框架RoboGuice使用:(Your First Testcase)),今天我们来看下自己定义View的注入(Custom View). ...

  7. 【七】注入框架RoboGuice使用:(Your First Custom Binding)

    上一篇我们简单的介绍了一下RoboGuice的使用([六]注入框架RoboGuice使用:(Singletons And ContextSingletons)),今天我们来看下自己定义绑定(bindi ...

  8. 【三】注入框架RoboGuice使用:(Your First Resource Injection)

    上一篇我们简单的介绍了一下RoboGuice的使用([二]注入框架RoboGuice使用:(Your First View Injection)),今天我们来看下资源文件的使用注解的方法: 为了在Ac ...

  9. 【八】注入框架RoboGuice使用:(Your First Injected Fragment)

        上一篇我们简单的介绍了一下RoboGuice的使用([七]注入框架RoboGuice使用:(Your First Custom Binding)),今天我们来看下fragment的注解     ...

随机推荐

  1. HDU 3398 String

    题目大意:一个长为n的01字符串,使前缀任意0的数量不大于1的数量,求方案数…… 题解:高一模拟赛时做过,是卡特兰数的几何意义,将字符串变为矩阵寻路,不可越过对角线,那么就是卡特兰数了,C(n+m, ...

  2. out/target/common/obj/PACKAGING/public_api.txt android.view.KeyEvent.KEYCODE_has changed value from

    编译出错: out/target/common/obj/PACKAGING/public_api.txt:22549: error 17: Field android.view.KeyEvent.KE ...

  3. POJ 3228Gold Transportation（二分+最大流）

    题目地址:POJ3288 这个题跟之前的一道题混了,感觉是一样的,所以连想都没怎么想就拆点然后求最短路然后二分求最大流了.结果连例子都只是,还一直以为又是哪里手残了..结果看了看例子,手算也确实不正确 ...

  4. CSS3框架！

    http://usablica.github.io/front-end-frameworks/compare.html?v=2.0

  5. 设计模式值六大原则——接口隔离原则 （ISP）

    接口隔离原则 Interface Segregation Principle    定义: 客户端不应该依赖它不需要的接口 类间的依赖关系应该建立在最小的接口上 我们可以把这两个定义概括为一句话:建立 ...

  6. 我用的比较少的CSS选择器

    选择器 描述 [attribute] 用于选取带有指定属性的元素. [attribute=value] 用于选取带有指定属性和值的元素. [attribute~=value] 用于选取属性值中包含指定 ...

  7. python成长之路13

    一:SqlAlchemy ORM ORM:Object Relational Mapping 对象关系映射是一种程序技术,用于实现面向对象编程语言里不同类型系统的数据之间的转换 SQLAlchemy是 ...

  8. 面向对象程序设计-C++ Finial exam review NOTES【第十六次上课笔记】

    写在前面: 我记得也不全,如果有记录的更全的同学可以留言,我会添加哒 :) 常量 内敛函数 为什么需要内敛函数 内敛函数适用于什么场合 内敛函数本身,最大优点是,避免了真正函数调用的开销 因为普通函数 ...

  9. spring mvc 分页

    spring mvc 分页

  10. C# 计算器 运算符和数字键的keys对照

    keys. private void Computer_KeyDown(object sender, KeyEventArgs e) { if (e.KeyCode == Keys.NumPad0) ...