Xamarin mediaPicker.TakePhotoAsync stürzt App

Question

Ich habe eine Xamarin.Forms App, die XLabs verwendet, es funktionierte gut, aber plötzlich begann es meine App zum Absturz, wenn ich Foto oder drücken Sie die Taste vom Fotobildschirm, ich google herum für 4 Stunden und immer noch keine Ahnung, warum es passiert, irgendwelche Ideen oder Gedanken, bitte helfen!

hier ist meine Codezeilen:

private async Task TakePicture() 
    { 
     mediaPicker = Resolver.Resolve<IDevice>().MediaPicker; 

     try 
     { 
      var mediaFile = await mediaPicker.TakePhotoAsync(new CameraMediaStorageOptions 
      { 
       DefaultCamera = CameraDevice.Front, 
       MaxPixelDimension = 1, 
       PercentQuality = 2, 
      }); 

      var image = GetResizedImage(mediaFile.Source, 990, 560); 
      OnImageUpdate(this, image); 
     } 
     catch (Exception ex) 
     { 
      this.status = ex.Message; 
     } 
    } 

meine Erlaubnis sind in Ordnung:

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> 
<uses-permission android:name="android.permission.CAMERA" /> 

Stacktrace:

07-02 16:01:20.433 D/Mono (20722): Assembly Ref addref XLabs.Platform.Droid[0x77114be8] -> System[0x7915c498]: 14 
07-02 16:01:20.463 D/Activity(20722): #1 setTransGradationModeColor false 
07-02 16:01:21.118 D/Mono (20722): Assembly Ref addref Xamarin.Forms.Platform.Android[0x7710d050] -> System.Xml[0x77bdfb08]: 6 
07-02 16:01:21.143 D/Mono (20722): Assembly Ref addref System.Runtime.Serialization[0x7b249010] -> System[0x7915c498]: 15 
07-02 16:01:21.223 D/Mono (20722): Assembly Ref addref System.Runtime.Serialization[0x7b249010] -> System.Core[0x77910b48]: 13 
07-02 16:01:21.393 D/AbsListView(20722): onDetachedFromWindow 
07-02 16:01:21.413 D/AbsListView(20722): onDetachedFromWindow 
07-02 16:01:21.978 D/LocationHandler(20722): logged location changed: Location[fused 55.545249,37.561894 acc=10 et=+3d2h50m24s315ms] 
07-02 16:01:26.948 D/LocationHandler(20722): logged location changed: Location[fused 55.545247,37.561896 acc=10 et=+3d2h50m29s329ms] 
07-02 16:01:30.343 D/Activity(20722): #1 setTransGradationModeColor false 
07-02 16:01:30.503 I/dalvikvm-heap(20722): Grow heap (frag case) to 70.455MB for 47775760-byte allocation 
07-02 16:01:30.528 D/dalvikvm(20722): GC_CONCURRENT freed 11651K, 22% free 59395K/75312K, paused 1ms+2ms, total 26ms 
07-02 16:01:30.898 D/dalvikvm(20722): GC_EXPLICIT freed 7037K, 28% free 54531K/75312K, paused 1ms+3ms, total 21ms 
07-02 16:01:30.908 D/Mono (20722): GC_OLD_BRIDGE num-objects 532 num_hash_entries 585 sccs size 580 init 0.00ms df1 1.07ms sort 0.20ms dfs2 0.67ms setup-cb 0.58ms free-data 0.92ms links 66/66/60/2 dfs passes 1183/646 
07-02 16:01:30.908 D/Mono (20722): GC_MAJOR: (LOS overflow) pause 19.10ms, total 19.27ms, bridge 39.09ms major 2240K/2096K los 3281K/17532K 
07-02 16:01:30.943 E/MoreInfoHPW_View(20722): Parent view is not a TextView 
07-02 16:01:30.983 D/ProgressBar(20722): updateDrawableBounds: left = 0 
07-02 16:01:30.983 D/ProgressBar(20722): updateDrawableBounds: top = 0 
07-02 16:01:30.983 D/ProgressBar(20722): updateDrawableBounds: right = -2 
07-02 16:01:30.983 D/ProgressBar(20722): updateDrawableBounds: bottom = -2 
07-02 16:01:30.993 D/ProgressBar(20722): updateDrawableBounds: left = 0 
07-02 16:01:30.993 D/ProgressBar(20722): updateDrawableBounds: top = 0 
07-02 16:01:30.993 D/ProgressBar(20722): updateDrawableBounds: right = -2 
07-02 16:01:30.993 D/ProgressBar(20722): updateDrawableBounds: bottom = -2 
07-02 16:01:31.003 D/Activity(20722): #3 setTransGradationModeColor to false 
07-02 16:01:31.043 D/ProgressBar(20722): updateDrawableBounds: left = 0 
07-02 16:01:31.043 D/ProgressBar(20722): updateDrawableBounds: top = 0 
07-02 16:01:31.043 D/ProgressBar(20722): updateDrawableBounds: right = 96 
07-02 16:01:31.043 D/ProgressBar(20722): updateDrawableBounds: bottom = 96 
07-02 16:01:31.048 W/View (20722): requestLayout() improperly called by md5530bd51e982e6e7b340b73e88efe666e.PageRenderer{42886ae8 V.E...C. ......ID 0,0-720,1134} during layout: running second layout pass 
07-02 16:01:31.048 W/View (20722): requestLayout() improperly called by md5530bd51e982e6e7b340b73e88efe666e.ActivityIndicatorRenderer{4279fa78 V.E..... ......ID 0,0--2,-2} during layout: running second layout pass 
07-02 16:01:31.048 W/View (20722): requestLayout() improperly called by md5530bd51e982e6e7b340b73e88efe666e.RendererFactory_DefaultRenderer{4270c278 V.E...C. ......ID 0,0--2,-2} during layout: running second layout pass 
07-02 16:01:32.003 D/LocationHandler(20722): logged location changed: Location[fused 55.545246,37.561896 acc=10 et=+3d2h50m34s361ms] 

so was passiert ist, mein MasterDetailPage erschafft, weil Konstruktor es ruft wieder an, aber mediapicker kommt von einer anderen ContentPage, also denke ich es fällt aktuelle Aktivität und startet wieder, ich weiß immer noch nicht, warum

Answer 1

TakePhotoAsync ist veraltet markiert (ich denke, wegen dieses Absturzes). Sie sollten GetTakePhotoUI verwenden. Es beginnt neue Absicht. Es funktioniert sehr gut in meiner App.