应用切到后台再次回到前台时展示广告页面的设置

来源：互联网发布：全国急招网络在线客服编辑：程序博客网时间：2024/06/04 01:32

这里主要用到了ActivityLifecycleCallBacks和ComponentCallBacks2 若有不懂请自行百度

/** * Created by Vigny on 2017/7/6. * 从后台切回展示广告页面 */public class SplashAdWrapper implements Application.ActivityLifecycleCallbacks, ComponentCallbacks2 {    private boolean mIsBackground;    /******     * 使用方式：在Application中直接构造即可     * @param application     */    public SplashAdWrapper(Application application) {        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {            application.registerActivityLifecycleCallbacks(this);            application.registerComponentCallbacks(this);        }    }    /*****     * 解除绑定     */    public void release(Application application) {        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {            application.unregisterActivityLifecycleCallbacks(this);            application.unregisterComponentCallbacks(this);        }    }    @Override    public void onActivityCreated(Activity activity, Bundle savedInstanceState) {    }    @Override    public void onActivityStarted(Activity activity) {    }    @Override    public void onActivityResumed(Activity activity) {        if (mIsBackground) {            mIsBackground = false;            Log.i("zzr", "从广告页回到前台");        }    }    @Override    public void onActivityPaused(Activity activity) {    }    @Override    public void onActivityStopped(Activity activity) {    }    @Override    public void onActivitySaveInstanceState(Activity activity, Bundle outState) {    }    @Override    public void onActivityDestroyed(Activity activity) {    }    @Override    public void onTrimMemory(int level) {        //监听应用是否退到后台        if (level == TRIM_MEMORY_UI_HIDDEN) {            mIsBackground = true;            Log.i("zzr", "应用退出到后台");        }    }    @Override    public void onConfigurationChanged(Configuration newConfig) {    }    @Override    public void onLowMemory() {    }}

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