講一個項目常見的功能，友盟統計功能

例如一個項目有很多多modlue,每個裏面modlue都有Activity，Activity需要友盟統一，Fragment也需要友盟統計。一般做法就是繼承一個BaseActivity,BaseFragment。

然後在BaseActivity,BaseFragment大概是這樣的

import android.support.v7.app.AppCompatActivity;

public class BaseActivity extends AppCompatActivity {

    @Override
    protected void onStart() {
        
 
super.onStart();
        MobclickAgent.onPageStart(getPageName(this));
    }

    @Override
    protected void onStop() {
        super.onStop();
        MobclickAgent.onPageEnd(getPageName(this));
    }
}

但是如果你們代碼，引入了其他的AAR代碼，他們aar裏面有Activity，但是你也該不了別人代碼，但是你們需要統計他們Activity，這個時候怎麽辦？

public class ActivityLifecycleMonitorCallback implements
 
 Application.ActivityLifecycleCallbacks {
    private static final boolean DEBUG = AppEnv.bAppdebug;
    private static final String TAG = DEBUG ? "ActivityLifecyMonitor" : ActivityLifecyMonitor.class.getSimpleName();

    @Override
    public void onActivityCreated(Activity activity, Bundle savedInstanceState) {
        
 
if (DEBUG) {
            Log.i(TAG, getPageName(activity) + " onActivityCreated  activity="+activity.hashCode());
        }
    }

    @Override
    public void onActivityStarted(Activity activity) {
        if (DEBUG) {
            Log.i(TAG, getPageName(activity) + " onActivityStarted");
        }
        MobclickAgent.onPageStart(getPageName(activity));
 
    }

    @Override
    public void onActivityResumed(Activity activity) {
        if (DEBUG) {
            Log.i(TAG, getPageName(activity) + " onActivityResumed");
        }
        MobclickAgent.onResume(activity);
    }

    @Override
    public void onActivityPaused(Activity activity) {
        if (DEBUG) {
            Log.i(TAG, getPageName(activity) + " onActivityPaused");
        }
        MobclickAgent.onPause(activity);
    }

    @Override
    public void onActivityStopped(Activity activity) {
        if (DEBUG) {
            Log.i(TAG, getPageName(activity) + " onActivityStopped");
        }
        MobclickAgent.onPageEnd(getPageName(activity));
    }

    @Override
    public void onActivitySaveInstanceState(Activity activity, Bundle outState) {
        if (DEBUG) {
            Log.i(TAG, getPageName(activity) + " onActivitySaveInstanceState");
        }
    }

    @Override
    public void onActivityDestroyed(Activity activity) {
        if (DEBUG) {
            Log.i(TAG, getPageName(activity) + " onActivityDestroyed  activity="+activity.hashCode());
        }
    }

    private String getPageName(Activity activity) {
        return activity.getClass().getName();
    }


}

然後在Application裏面註冊

 private void registerActivityLifecycleCallback(Application application) {
        ActivityLifecycleMonitorCallback  activityLifecycleMonitor = new ActivityLifecycleMonitorCallback();
        application.registerActivityLifecycleCallbacks(activityLifecycleMonitor);
    }

Android官方架構組件介紹之應用（四）