在插页式广告之前在屏幕上显示进度条

Question

我正在开发实现 Admob 插页式广告的 Android 应用程序。我想要的是处理程序锁定屏幕并显示进度条两秒钟，然后显示插页式广告。

我所做的是通过创建动画为插页式广告制作动画，并在 InterstitialAd.show 方法之后调用它。

 mInterstitialAd!!.adListener = object: AdListener() {
        override fun onAdLoaded() {
            btnstart.setOnClickListener(View.OnClickListener {


                if (mInterstitialAd!!.isLoaded) {
                    mInterstitialAd!!.show()
                    overridePendingTransition(R.anim.in_left, R.anim.nav_default_exit_anim)
                } else {
                    sharpref!!.privacyPolicyAccepted()
                    if (!sharpref!!.isFirstTimeLaunch()) {
                        val intent = Intent(applicationContext, SliderActivity::class.java)
                        startActivity(intent)
                    } else {
                        val intent = Intent(applicationContext, MainActivity::class.java)
                        startActivity(intent)
                    }
                }
            })
        }

代码为overridePendingTransition(R.anim.in_left, R.anim.nav_default_exit_anim) 插页式广告设置了动画，但我想要的是在插页式广告打开之前显示两秒钟的进度条。

崩溃后的Logcat

    2020-12-04 10:29:03.603 577-1239/? E/PackageManager: liangshuang2, setEnabledSetting, packageName=com.google.android.apps.youtube.mango,,className=androidx.work.impl.background.systemjob.SystemJobService,,,newState=1,,flags=1,,userId=0,,callingPackage=null
2020-12-04 10:29:04.309 577-5614/? E/PackageManager: liangshuang2, setEnabledSetting, packageName=com.google.android.apps.youtube.mango,,className=androidx.work.impl.background.systemalarm.RescheduleReceiver,,,newState=1,,flags=1,,userId=0,,callingPackage=null
2020-12-04 10:35:56.218 22376-22565/? E/AndroidRuntime: FATAL EXCEPTION: Timer-0
    Process: com.techpaliyal.bottomcutoutnavigation, PID: 22376
    java.lang.RuntimeException: Can't toast on a thread that has not called Looper.prepare()
        at android.widget.Toast$TN.<init>(Toast.java:405)
        at android.widget.Toast.<init>(Toast.java:117)
        at android.widget.Toast.makeText(Toast.java:292)
        at android.widget.Toast.makeText(Toast.java:282)
        at 

com.maximus.technologies.views.activities.SplashActivity$setClickListeners$4$onAdLoaded$1$$special$$inlined$timerTask$1.run(Timer.kt:149)
        at java.util.TimerThread.mainLoop(Timer.java:555)
        at java.util.TimerThread.run(Timer.java:505)
2020-12-04 10:36:00.841 577-739/? E/UsbDeviceManager: unknown state HWDISCONNECTED
    
        --------- beginning of main
    2020-12-04 10:36:00.921 763-763/? E/licong: onReceive
    2020-12-04 10:36:00.929 577-596/? E/BatteryExternalStatsWorker: no controller energy info supplied for wifi
2020-12-04 10:36:00.942 577-596/? E/BatteryExternalStatsWorker: no controller energy info supplied for bluetooth
2020-12-04 10:36:01.171 577-596/? E/BatteryExternalStatsWorker: no controller energy info supplied for wifi

更新代码

 btnstart.setOnClickListener(View.OnClickListener {

        mInterstitialAd!!.adListener = object: AdListener() {
            override fun onAdLoaded() {
                
                if (mInterstitialAd!!.isLoaded) {
                    mInterstitialAd!!.show()
                    overridePendingTransition(R.anim.in_left, R.anim.nav_default_exit_anim)
                } else {
                    sharpref!!.privacyPolicyAccepted()
                    if (!sharpref!!.isFirstTimeLaunch()) {
                        val intent = Intent(applicationContext, SliderActivity::class.java)
                        startActivity(intent)
                    } else {
                        val intent = Intent(applicationContext, MainActivity::class.java)
                        startActivity(intent)
                    }
                }
            }

            override fun onAdFailedToLoad(adError: LoadAdError) {
                if (mInterstitialAd!!.isLoaded) {
                    mInterstitialAd!!.show()
                    overridePendingTransition(R.anim.in_left, R.anim.nav_default_exit_anim)
                } else {
                    sharpref!!.privacyPolicyAccepted()

                    if (!sharpref!!.isFirstTimeLaunch()) {
                        val intent = Intent(applicationContext, SliderActivity::class.java)
                        startActivity(intent)
                    } else {
                        val intent = Intent(applicationContext, MainActivity::class.java)
                        startActivity(intent)
                    }
                }
            }

            override fun onAdOpened() {}

            override fun onAdClicked() {
                // Code to be executed when the user clicks on an ad.
            }

            override fun onAdLeftApplication() {
                // Code to be executed when the user has left the app.
            }

            override fun onAdClosed() {
                if(!sharpref!!.isFirstTimeLaunch()) {
                    val intent = Intent(applicationContext, SliderActivity::class.java)
                    startActivity(intent)
                }
                else
                {
                    val intent = Intent(applicationContext, MainActivity::class.java)
                    startActivity(intent)
                }
            }
        }
    })


}

Answer 1

有关计时器的更多详细信息，请参阅this 答案。

快速概览：-

链接中的答案显示了在特定时间后安排某些工作的不同方法。您可以根据自己的要求使用它。

据我从您的问题中了解到的，您可能会有这样的想法：-

if (mInterstitialAd!!.isLoaded) {
     // show Progress Bar visibility here 
        Handler().postDelayed({
            //Hide Progress Bar visibility here 
            mInterstitialAd!!.show()
            overridePendingTransition(R.anim.in_left,R.anim.nav_default_exit_anim)
            }, 2000)
   }

在if (mInterstitialAd!!.isLoaded) 之后的这种方法中，您还可以设置一个计时器（在提供的链接中提供更多详细信息），然后您可以根据需要展示带有动画的广告。