ADF_220：ADF Mobile 11.1.2.4 Samples 介绍（6）：LifecycleEvents

开发运行环境：JDeveloper 11.1.2.4 + Android SDK r21.1

LifecycleEvents演示了如何使用Lifecycle Event Handlers。

知识点：

1. 应用级的Lifecycle Event Listener

AppHandler.java 代码：

package application;

import com.sun.util.logging.Level;

import oracle.adfmf.application.LifeCycleListener;
import oracle.adfmf.util.Utility;
import oracle.adfmf.util.logging.Trace;

public class AppHandler implements LifeCycleListener {
    public AppHandler() {
        super();
    }

    public void start() {
        Trace.log(Utility.ApplicationLogger, Level.SEVERE, AppHandler.class, "start",
                  "!!!!!!!!!!Application Start!!!!!!!!!!");
    }

    public void stop() {
        Trace.log(Utility.ApplicationLogger, Level.SEVERE, AppHandler.class, "Stop",
                  "!!!!!!!!!!Application Stop!!!!!!!!!!");
    }

    public void activate() {
        Trace.log(Utility.ApplicationLogger, Level.SEVERE, AppHandler.class, "activate",
                  "!!!!!!!!!!Application Activate!!!!!!!!!!");
    }

    public void deactivate() {
        Trace.log(Utility.ApplicationLogger, Level.SEVERE, AppHandler.class, "deactivate",
                  "!!!!!!!!!!Application Deactivate!!!!!!!!!!");
    }
}

2. Feature级的Lifecycle Event Listener

Feature1Handler.java 代码：

package mobile;

import com.sun.util.logging.Level;

import oracle.adfmf.feature.LifeCycleListener;
import oracle.adfmf.util.Utility;
import oracle.adfmf.util.logging.Trace;

public class Feature1Handler implements LifeCycleListener {
    public Feature1Handler() {
        super();
    }

    public void activate() {
        Trace.log(Utility.ApplicationLogger, Level.SEVERE, Feature1Handler.class, "activate",
                  "!!!!!!!!!!Feature 1 Activate!!!!!!!!!!");
    }

    public void deactivate() {
        Trace.log(Utility.ApplicationLogger, Level.SEVERE, Feature1Handler.class, "deactivate",
                  "!!!!!!!!!!Feature 1 Deactivate!!!!!!!!!!");
    }
}

如果想要看到这些信息何时输出，请参考《使用Logger设置和查看Android应用的调试信息》。