Error Exporting chart to Android

[Raymond Dillon]

Hi,

I have a XF chart in my project and the export to iOS works OK, but the export on Android fails with:

08-01 11:44:32.066 I/MonoDroid(22305): Java.IO.IOException: No such file or directory
08-01 11:44:32.066 I/MonoDroid(22305):   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x0000c] in <3fd174ff54b146228c505f23cf75ce71>:0
08-01 11:44:32.066 I/MonoDroid(22305):   at Java.Interop.JniEnvironment+InstanceMethods.CallBooleanMethod (Java.Interop.JniObjectReference instance, Java.Interop.JniMethodInfo method, Java.Interop.JniArgumentValue* args) [0x00069] in <bd30a18775d94dc8b6263aecd1ca9077>:0
08-01 11:44:32.066 I/MonoDroid(22305):   at Java.Interop.JniPeerMembers+JniInstanceMethods.InvokeVirtualBooleanMethod (System.String encodedMember, Java.Interop.IJavaPeerable self, Java.Interop.JniArgumentValue* parameters) [0x0002a] in <bd30a18775d94dc8b6263aecd1ca9077>:0
08-01 11:44:32.066 I/MonoDroid(22305):   at Java.IO.File.CreateNewFile () [0x0000a] in <61dabd3f0b0446bc8b570d6071d995d7>:0
08-01 11:44:32.066 I/MonoDroid(22305):   at Syncfusion.SfChart.XForms.Droid.ChartDependencyService+<SaveAsImage>d__0.MoveNext () [0x00042] in <1e4446e48e6b4cf595ae2a48676fdb4d>:0
08-01 11:44:32.066 I/MonoDroid(22305): --- End of stack trace from previous location where exception was thrown ---
08-01 11:44:32.066 I/MonoDroid(22305):   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x0000c] in <3fd174ff54b146228c505f23cf75ce71>:0
08-01 11:44:32.066 I/MonoDroid(22305):   at System.Runtime.CompilerServices.AsyncMethodBuilderCore+<>c.<ThrowAsync>b__6_0 (System.Object state) [0x00000] in <3fd174ff54b146228c505f23cf75ce71>:0
08-01 11:44:32.066 I/MonoDroid(22305):   at Android.App.SyncContext+<>c__DisplayClass2_0.<Post>b__0 () [0x00000] in <61dabd3f0b0446bc8b570d6071d995d7>:0
08-01 11:44:32.066 I/MonoDroid(22305):   at Java.Lang.Thread+RunnableImplementor.Run () [0x00008] in <61dabd3f0b0446bc8b570d6071d995d7>:0
08-01 11:44:32.066 I/MonoDroid(22305):   at Java.Lang.IRunnableInvoker.n_Run (System.IntPtr jnienv, System.IntPtr native__this) [0x00008] in <61dabd3f0b0446bc8b570d6071d995d7>:0
08-01 11:44:32.066 I/MonoDroid(22305):   at (wrapper dynamic-method) System.Object:9debb56f-082e-408f-8b9b-98f0b0ee179e (intptr,intptr)
08-01 11:44:32.066 I/MonoDroid(22305):   --- End of managed Java.IO.IOException stack trace ---
08-01 11:44:32.066 I/MonoDroid(22305): java.io.IOException: No such file or directory
08-01 11:44:32.066 I/MonoDroid(22305):  at java.io.UnixFileSystem.createFileExclusively0(Native Method)
08-01 11:44:32.066 I/MonoDroid(22305):  at java.io.UnixFileSystem.createFileExclusively(UnixFileSystem.java:280)
08-01 11:44:32.066 I/MonoDroid(22305):  at java.io.File.createNewFile(File.java:948)
08-01 11:44:32.066 I/MonoDroid(22305):  at md5270abb39e60627f0f200893b490a1ade.ButtonRenderer_ButtonClickListener.n_onClick(Native Method)
08-01 11:44:32.066 I/MonoDroid(22305):  at md5270abb39e60627f0f200893b490a1ade.ButtonRenderer_ButtonClickListener.onClick(ButtonRenderer_ButtonClickListener.java:30)
08-01 11:44:32.066 I/MonoDroid(22305):  at android.view.View.performClick(View.java:6199)
08-01 11:44:32.066 I/MonoDroid(22305):  at android.widget.TextView.performClick(TextView.java:11090)
08-01 11:44:32.066 I/MonoDroid(22305):  at android.view.View$PerformClick.run(View.java:23647)
08-01 11:44:32.066 I/MonoDroid(22305):  at android.os.Handler.handleCallback(Handler.java:751)
08-01 11:44:32.066 I/MonoDroid(22305):  at android.os.Handler.dispatchMessage(Handler.java:95)
08-01 11:44:32.066 I/MonoDroid(22305):  at android.os.Looper.loop(Looper.java:154)
08-01 11:44:32.066 I/MonoDroid(22305):  at android.app.ActivityThread.main(ActivityThread.java:6682)
08-01 11:44:32.066 I/MonoDroid(22305):  at java.lang.reflect.Method.invoke(Native Method)
08-01 11:44:32.066 I/MonoDroid(22305):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1520)
08-01 11:44:32.066 I/MonoDroid(22305):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1410)

I have WRITE and READ external storage permissions in my Android Manifest file but it isn't making a difference.

Any suggestions?

Regards,

Raymond

[Saravana Pandian Murugan]

Hi Raymond,

Thanks for contacting Syncfusion support.

We were not able to reproduce the reported issue at our end and we have prepared a sample for this. Please update us the modified sample to reproduce the issue which will be helpful for providing further assistance on this.

Sample: http://www.syncfusion.com/downloads/support/forum/131874/ze/SaveAsImage-960786600

Note:

The exported image will be saved in different location across the platforms.

Android – The image will be saved inside the Pictures directory. You can find it using the file explorer application.

iOS – The image will be saved inside the “Photos/Album” directory.

UWP – A Save as dialog box will appear to choose the storage location.

Please let us know if you are still facing this issue.

Regards,
Saravana Pandian M.

[Raymond Dillon]

Hi,

The sample works perfectly, but I am unsure how as there are no permissions set in the manifest - particularly for accessing files?

Regards,

Raymond

[Saravana Pandian Murugan]

Hi Raymond, 

 

Regarding “ but I am unsure how as there are no permissions set in the manifest - particularly for accessing files?” 

 

You no need to enable Read/Write permission to save Chart as an image. In source level, we save this chart as an image by creating a new file (name of the image file) under Pictures folder of ExternalStorage. 

 

Are you able to run our sample in the device in which you are facing this issue? If yes, can you able to see the chart image under Pictures folder? 

 

If not, please update us the modified sample or update us the with more details (Device details) in which you are facing this issue which will be helpful to assist you further. 

 

Regards, 

Saravana Pandian M. 

[Dave Friedel]

I know how to reproduce it...

Simply try to export using this filename and it will give the error.

chartData.SaveAsImage("img" + DateTime.Now.ToString() + ".jpg")

I was trying to make an image increment based on time and had it happen

[Gayathri Manickam]

Hi Dave, 

 

Thanks for contacting Syncfusion support. 

 

We would like to let you know that the default format for DateTime value consider like "4/21/2021 3:38:31". Hence the file manager mistook it as directory and search for the folder name. Please try with the other format in DateTime for storing the image. 

 

Please refer the following code snippet for another format in DateTime. 

 

chart.SaveAsImage("img" + DateTime.Now.ToString("dd_MM_yyyy") + ".jpg");   // img21_04_2021.jpg 

 

or 

 

var date = DateTime.Now.Year.ToString() + DateTime.Now.Month.ToString() + DateTime.Now.Day.ToString(); 

 

chart.SaveAsImage("img" + date + ".jpg");  // img2021421.jpg 

 

Please let us know if you require further assistance. 

 

Thanks, 

Gayathri M.