Black screen at applicaiton startup

Tomasz Ścisło

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Jun 25, 2013, 3:56:28 PM6/25/13

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Hello All,

I have application that uses PhoneGap 2.7.0, jQuery Mobile 1.3, Google Maps API v3 and AdMob SDK.

I launch this application usually on Android device with OS version 4.0.1.

The problem is that, sometimes the application starts with empty black screen and no further actions are available. It happens only for 5% launches and for the other 95% it starts fine. The application uses Internet connection, but it is protected for no Internet connection error. This error occurs regardless of application startup conditions, so it is hardly reproducible.

Below I attach LogCat form field launch attempt:

06-24 18:52:21.980: D/CordovaWebView(23394): The current URL is: file:///android_asset/www/index.html

06-24 18:52:21.980: D/CordovaWebView(23394): The URL at item 0 is:file:///android_asset/www/index.html

06-24 18:52:22.100: D/DroidGap(23394): Paused the application!

06-24 18:52:22.100: D/CordovaWebView(23394): Handle the pause

06-24 18:52:22.380: D/OpenGLRenderer(23394): Flushing caches (mode 0)

06-24 18:52:22.815: D/OpenGLRenderer(23394): Flushing caches (mode 1)

06-24 18:52:22.840: D/DroidGap(23394): onDestroy()

06-24 18:52:22.840: D/CordovaWebView(23394): >>> loadUrl(javascript:try{cordova.require('cordova/channel').onDestroy.fire();}catch(e){console.log('exception firing destroy event from native');};)

06-24 18:52:22.840: D/PluginManager(23394): init()

06-24 18:52:22.850: D/CordovaWebView(23394): >>> loadUrlNow()

06-24 18:52:29.420: I/CordovaLog(24153): Changing log level to DEBUG(3)

06-24 18:52:29.425: I/CordovaLog(24153): Found preference for useBrowserHistory=true

06-24 18:52:29.425: D/CordovaLog(24153): Found preference for useBrowserHistory=true

06-24 18:52:29.425: I/CordovaLog(24153): Found preference for exit-on-suspend=false

06-24 18:52:29.425: D/CordovaLog(24153): Found preference for exit-on-suspend=false

06-24 18:52:29.425: D/DroidGap(24153): DroidGap.onCreate()

06-24 18:52:29.430: D/DroidGap(24153): Setting integer properties in DroidGap will be deprecated in 3.1 on August 2013, please use config.xml

06-24 18:52:29.485: I/webclipboard(24153): clipservice: android.sec.clipboard.ClipboardExManager@414fb5c0

06-24 18:52:29.530: D/CordovaWebView(24153): CordovaWebView is running on device made by: samsung

06-24 18:52:29.535: D/JsMessageQueue(24153): Set native->JS mode to 2

06-24 18:52:29.540: D/DroidGap(24153): DroidGap.init()

06-24 18:52:29.590: D/dalvikvm(24153): GC_FOR_ALLOC freed 131K, 3% free 8930K/9159K, paused 31ms

06-24 18:52:29.590: I/dalvikvm-heap(24153): Grow heap (frag case) to 9.934MB for 1228816-byte allocation

06-24 18:52:29.610: D/dalvikvm(24153): GC_CONCURRENT freed 3K, 3% free 10126K/10375K, paused 1ms+2ms

06-24 18:52:29.680: D/CordovaWebView(24153): DroidGap.loadUrl(file:///android_asset/www/index.html, 5000)

06-24 18:52:29.680: D/DroidGap(24153): onMessage(splashscreen,show)

06-24 18:52:29.680: D/CordovaWebView(24153): >>> loadUrl(file:///android_asset/www/index.html)

06-24 18:52:29.680: D/PluginManager(24153): init()

06-24 18:52:29.690: D/CordovaWebView(24153): >>> loadUrlNow()

06-24 18:52:29.750: D/dalvikvm(24153): DexOpt: --- BEGIN 'ads34907068.jar' (bootstrap=0) ---

06-24 18:52:29.900: D/dalvikvm(24153): GC_CONCURRENT freed 157K, 3% free 10436K/10695K, paused 2ms+7ms

06-24 18:52:31.655: D/chromium(24153): Unknown chromium error: -6

06-24 18:52:31.690: D/CordovaNetworkManager(24153): Connection Type: 3g

06-24 18:52:31.690: I/GATE(24153): <GATE-M>DEV_ACTION_COMPLETED</GATE-M>

06-24 18:52:31.835: D/chromium(24153): Unknown chromium error: -6

06-24 18:52:32.725: D/DroidGap(24153): onMessage(splashscreen,hide)

06-24 18:52:34.695: D/dalvikvm(24153): GC_CONCURRENT freed 79K, 2% free 10830K/11015K, paused 2ms+2ms

06-24 18:52:39.940: V/chromium(24153): external/chromium/net/base/bandwidth_metrics.h:96: [0624/185239:INFO:bandwidth_metrics.h(96)] Bandwidth: 374.762Kbps (avg 374.762Kbps)

Please note the “D/chromium(24153): Unknown chromium error: -6” message, that so far is a mistary to me.
Do you have any clue what might cause my problems?

Thanks,

ToM

Martin Thorpe

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Jan 15, 2014, 8:34:05 AM1/15/14

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Hello Tomasz

I have exactly the same issue, seems we are the only 2 on the internet.
Did you find a way to fix or work around this?

cheers
Martin

Jakkaraju Kiran

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Dec 21, 2016, 2:29:48 PM12/21/16

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I just posted similar question. we are using inapp browser with crosswalk and URL is not launching eventhough there are no issues

but when I launch for the 2nd time, the URL works and app opens the page in the crosswalk browser.

any idea why it gives black screen for the first time.

this is started happening after I included a logic get a bindservice or serviceconnection to get some details from the phone.

thanks

Kiran

Rob Willett

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Dec 21, 2016, 2:59:43 PM12/21/16

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This is from over three years ago.

Please don't resurrect old threads. Code has massively changed since then.

Rob

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