App crash on file pick in android #286

maxbhoria · 2020-06-08T07:52:26Z

Hi i am not able to pick file app get crashed when i select any file.

I an using android device.

Issue printed in console

E/AndroidRuntime( 1459): java.lang.NullPointerException: Attempt to invoke virtual method 'boolean java.lang.String.equals(java.lang.Object)' on a null object reference
E/AndroidRuntime( 1459): at com.mr.flutter.plugin.filepicker.FilePickerDelegate$2.run(FilePickerDelegate.java:92)
E/AndroidRuntime( 1459): at java.lang.Thread.run(Thread.java:919)

miguelpruivo · 2020-06-08T08:49:45Z

Hi, how are you picking the file?

maxbhoria · 2020-06-08T09:45:11Z

Hi, how are you picking the file?

I am using this code

void pickFile() async {
setState(() => _loadingPath = true);
try {
_path = null;
_path = await FilePicker.getFilePath(
type: _pickingType, allowedExtensions: (_extension?.isNotEmpty ?? false) ? _extension?.replaceAll(' ', '')?.split(',') : null);
} on PlatformException catch (e) {
print("Unsupported operation" + e.toString());
}
if (!mounted) return;
setState(() {
_loadingPath = false;
_fileName = _path != null ? _path.split('/').last : _paths != null ? _paths.keys.toString() : '...';
});
}

miguelpruivo · 2020-06-08T10:24:02Z

Please, don’t use that. That’s an example code that’s made to fit a lot of use cases with a few lines and shouldn’t be used at on your project.

Check the plugin’s Wiki that has a lot of well documented examples for each use case and let me know if it worked for you.

Thanks!

maxbhoria · 2020-06-08T10:33:54Z

Please, don’t use that. That’s an example code that’s made to fit a lot of use cases with a few lines and shouldn’t be used at on your project.

Check the plugin’s Wiki that has a lot of well documented examples for each use case and let me know if it worked for you.

Thanks!

Now i used this code but app still crashing

File extraFile = await FilePicker.getFile(type: FileType.any);
setState(() {
fileName = basename(extraFile.path);
});

Error Logs
E/AndroidRuntime(20193): java.lang.NullPointerException: Attempt to invoke virtual method 'boolean java.lang.String.equals(java.lang.Object)' on a null object reference
E/AndroidRuntime(20193): at com.mr.flutter.plugin.filepicker.FilePickerDelegate$2.run(FilePickerDelegate.java:92)
E/AndroidRuntime(20193): at java.lang.Thread.run(Thread.java:919)
E/FilePickerUtils(20193): Document URI
E/FilePickerUtils(20193): External Document URI
E/FilePickerUtils(20193): Primary External Document URI
I/FilePickerDelegate(20193): Absolute file path:/storage/emulated/0/Download/dbs-postgraduate-fees-2015-16.pdf

miguelpruivo · 2020-06-08T11:28:03Z

@maxbhoria when you run the example app, does that happen?

maxbhoria · 2020-06-08T11:35:38Z

@maxbhoria when you run the example app, does that happen?
No this is not happened when i download code from github.

miguelpruivo · 2020-06-08T11:41:30Z

Hum, there must be something in your project that's resulting in type being null. Which file_picker version are you on? By looking at your stack trace, it's invoking type as null in a place where it can't be null.

Also, run a full flutter clean and build again.

maxbhoria · 2020-06-08T11:46:51Z

Hum, there must be something in your project that's resulting in type being null. Which file_picker version are you on? By looking at your stack trace, it's invoking type as null in a place where it can't be null.

Also, run a full flutter clean and build again.

Plugin version is file_picker: ^1.10.0
tried many time with flutter clean

Can you tell me how to directly use github plugin directly in my app?

miguelpruivo · 2020-06-08T12:07:45Z

If you can't reproduce it with the example app, then likely there must be something related to some conflict on your project.

There's no need to use the github project directly on your project as it won't make any difference or whatsoever, but may help you get rid of cached issues. You can give it a try. Just use it like this:

file_picker:
  git: https://github.com/miguelpruivo/flutter_file_picker.git

maxbhoria · 2020-06-08T12:09:11Z

If you can't reproduce it with the example app, then likely there must be something related to some conflict on your project.

There's no need to use the github project directly on your project as it won't make any difference or whatsoever, but may help you get rid of cached issues. You can give it a try. Just use it like this:
file_picker:
  git: https://github.com/miguelpruivo/flutter_file_picker.git

ok thanks, let me try this!

maxbhoria · 2020-06-08T12:17:35Z

file_picker:
git: https://github.com/miguelpruivo/flutter_file_picker.git

it also did not worked error is same

miguelpruivo · 2020-06-08T12:22:54Z

Yes, like I told you, pubdev has the same version. I really would like to help you, but I quite don't get what might be triggering it. Maybe post your code block that's asking for the picker.

maxbhoria · 2020-06-08T12:24:27Z

Yes, like I told you, pubdev has the same version. I really would like to help you, but I quite don't get what might be triggering it. Maybe post your code block that's asking for the picker.

however it does not require any specific setting for android

maxbhoria · 2020-06-08T12:30:02Z

Yes, like I told you, pubdev has the same version. I really would like to help you, but I quite don't get what might be triggering it. Maybe post your code block that's asking for the picker.

This is complete log have a look in that please

D/SurfaceView(31692): windowStopped(true) false io.flutter.embedding.android.FlutterSurfaceView{9be883b V.E...... ........ 0,0-1080,2301} of ViewRootImpl@98d2c27[MainActivity]
D/FlutterView(31692): Detaching from a FlutterEngine: io.flutter.embedding.engine.FlutterEngine@4d2e4be
D/SurfaceView(31692): onWindowVisibilityChanged(4) false io.flutter.embedding.android.FlutterSurfaceView{9be883b V.E...... .......D 0,0-1080,2301} of ViewRootImpl@98d2c27[MainActivity]
D/ViewRootImpl@98d2c27MainActivity: Relayout returned: old=(0,0,1080,2340) new=(0,0,1080,2340) req=(1080,2340)4 dur=12 res=0x1 s={false 0} ch=false
I/FilePickerDelegate(31692): [SingleFilePick] File URI:content://com.android.externalstorage.documents/document/primary%3ADownload%2F4w2E4661.jpg
E/FilePickerUtils(31692): Getting for API 19 or abovecontent://com.android.externalstorage.documents/document/primary%3ADownload%2F4w2E4661.jpg
D/ViewRootImpl@98d2c27MainActivity: stopped(false) old=true
D/SurfaceView(31692): windowStopped(false) false io.flutter.embedding.android.FlutterSurfaceView{9be883b V.E...... .......D 0,0-1080,2301} of ViewRootImpl@98d2c27[MainActivity]
E/AndroidRuntime(31692): FATAL EXCEPTION: Thread-6
E/AndroidRuntime(31692): Process: com.babymotherprescription, PID: 31692
E/AndroidRuntime(31692): java.lang.NullPointerException: Attempt to invoke virtual method 'boolean java.lang.String.equals(java.lang.Object)' on a null object reference
E/AndroidRuntime(31692): at com.mr.flutter.plugin.filepicker.FilePickerDelegate$2.run(FilePickerDelegate.java:92)
E/AndroidRuntime(31692): at java.lang.Thread.run(Thread.java:919)
D/ViewRootImpl@98d2c27MainActivity: stopped(false) old=false
E/FilePickerUtils(31692): Document URI
E/FilePickerUtils(31692): External Document URI
E/FilePickerUtils(31692): Primary External Document URI
I/FilePickerDelegate(31692): Absolute file path:/storage/emulated/0/Download/4w2E4661.jpg
D/SurfaceView(31692): onWindowVisibilityChanged(0) true io.flutter.embedding.android.FlutterSurfaceView{9be883b V.E...... .......D 0,0-1080,2301} of ViewRootImpl@98d2c27[MainActivity]
D/ViewRootImpl@98d2c27MainActivity: Relayout returned: old=(0,0,1080,2340) new=(0,0,1080,2340) req=(1080,2340)0 dur=14 res=0x7 s={true 496188772352} ch=true
D/OpenGLRenderer(31692): createReliableSurface : 0x740b61bd00, 0x738727d000
I/mali_winsys(31692): new_window_surface() [1080x2340] return: 0x3000
D/SurfaceView(31692): surfaceCreated 1 #8 io.flutter.embedding.android.FlutterSurfaceView{9be883b V.E...... .......D 0,0-1080,2301}
D/SurfaceView(31692): surfaceChanged (1080,2301) 1 #8 io.flutter.embedding.android.FlutterSurfaceView{9be883b V.E...... .......D 0,0-1080,2301}
I/Process (31692): Sending signal. PID: 31692 SIG: 9

maxbhoria · 2020-06-08T13:46:55Z

i tried with another new project but the output is same. Have you find anything or have you tried by creating new project to check?

maxbhoria · 2020-06-08T13:57:38Z

Do you remember any other settings that you did in your example because i don't how your example running perfectly

maxbhoria · 2020-06-08T14:40:12Z

is this the problem because of i am using kotlin and your plugin is in java?? Because i copy your android folder from the example and i paste it into my sample it worked for me

miguelpruivo · 2020-06-08T16:12:11Z

It shouldn't have any issue with kotlin projects. But try recreating your project from scratch or run flutter create . on your project so it can add missing files and run it again.

maxbhoria · 2020-06-09T04:33:21Z

Hello
I commented this code in plugin FilePickerDeligate.java, will it create any further issue in my application?

// if (type.equals("dir") && Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
// uri = DocumentsContract.buildDocumentUriUsingTree(uri, DocumentsContract.getTreeDocumentId(uri));
// }

miguelpruivo · 2020-06-09T09:04:29Z

If you’re not planning to pick directories then not. I forgot to ask, what’s the minimum Android sdk of your app?

maxbhoria · 2020-06-09T09:15:45Z

If you’re not planning to pick directories then not. I forgot to ask, what’s the minimum Android sdk of your app?

yes of course i don't have plan to pick dir as of now but Please make a fix for this problem and my mini sdk is 21.

Thanks for your support

miguelpruivo · 2020-06-09T09:25:06Z

@maxbhoria I can’t make a fix if I don’t get what’s triggering your issue but I’ll give it a look, could you please tell me details of your app’s build gradle and which version your android device is on?

maxbhoria · 2020-06-09T09:32:43Z

You can check by creating a new project what wrong is triggered beacause i tried by creating new project also.

I am using Andorid 10 and this is app level gradle

def localProperties = new Properties()
def localPropertiesFile = rootProject.file('local.properties')
if (localPropertiesFile.exists()) {
localPropertiesFile.withReader('UTF-8') { reader ->
localProperties.load(reader)
}
}

def flutterRoot = localProperties.getProperty('flutter.sdk')
if (flutterRoot == null) {
throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
}

def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
if (flutterVersionCode == null) {
flutterVersionCode = '1'
}

def flutterVersionName = localProperties.getProperty('flutter.versionName')
if (flutterVersionName == null) {
flutterVersionName = '1.0'
}

apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"

android {
compileSdkVersion 29

sourceSets {
    main.java.srcDirs += 'src/main/kotlin'
}

lintOptions {
    disable 'InvalidPackage'
}

defaultConfig {
    // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
    applicationId "com.babymotherprescription"
    minSdkVersion 21
    targetSdkVersion 29
    versionCode flutterVersionCode.toInteger()
    versionName flutterVersionName
    testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}

buildTypes {
    release {
        // TODO: Add your own signing config for the release build.
        // Signing with the debug keys for now, so `flutter run --release` works.
        signingConfig signingConfigs.debug
    }
}

}

flutter {
source '../..'
}

dependencies {
implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
testImplementation 'junit:junit:4.12'
androidTestImplementation 'androidx.test:runner:1.1.1'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1'
}

nicolas-costa · 2020-06-10T19:30:19Z

@maxbhoria if you want a quick workaround, use file_picker: 1.7.0.
I was facing the same issue here, strangely enough, the code was working on Friday 5.
The older version "solved" it.

miguelpruivo · 2020-06-10T19:51:07Z

@nicolas-costa did you update it since Friday? The last update only introduced directory picks but for some reason this issue results in file type (apparently) being null where it can’t be, still trying to understand what might be resulting in it but no luck so far.

nicolas-costa · 2020-06-10T21:11:33Z

@miguelpruivo I didn't intentionally updated it. What I can tell you is that I installed it last week to make some tests and see if it would fit my needs. I followed the docs, where, as you know, it instructs to add "file_picker: ^1.7.1". It was working perfectly.

Then it stopped working somehow. I messed around trying to figure it out, without luck. Then stumbled on this version bump (1.10.0) on my pubspec file, found this issue and had the idea to rollback to 1.7. Boom, working again.

So I guess the package manager updated it for me due to the: ^.

nikitaIndianic · 2020-06-24T10:00:00Z

see when i tried to pick image from that particular folder i am getting crash

miguelpruivo · 2020-06-24T11:20:49Z

@nikitaIndianic thanks, I'm looking into it. Does that happen only with that folder?

nikitaIndianic · 2020-06-24T11:34:16Z

i tried with nexus 5x emulator in this device i am getting crash while selection image from download folder too.

miguelpruivo · 2020-06-24T11:59:21Z

@nikitaIndianic just tried creating a new 5x emulator with the settings you gave me and it works flawlessly. There must be something else triggering the issue.

If you look into the source code, you see that the type can't be null where it is saying it is, as I have a type null check just a few lines before that. Oddly, in your activity result, the type becomes null magically.

Does that happen in a brand new Flutter project? Would you mind to try please?

nikitaIndianic · 2020-06-24T12:02:20Z

yes i have tried in new project but getting same issue.
yes i am too confused because before that it's working fine.

miguelpruivo · 2020-06-24T12:04:27Z

@nikitaIndianic post your flutter doctor -v here please.

nikitaIndianic · 2020-06-24T12:05:58Z

[✓] Flutter (Channel stable, v1.12.13+hotfix.9, on Mac OS X 10.15.3 19D76, locale en-IN)
• Flutter version 1.12.13+hotfix.9 at /Users/indianic/flutterSDk/flutter
• Framework revision f139b11009 (3 months ago), 2020-03-30 13:57:30 -0700
• Engine revision af51afceb8
• Dart version 2.7.2

[✓] Android toolchain - develop for Android devices (Android SDK version 29.0.3)
• Android SDK at /Users/indianic/Library/Android/sdk
• Android NDK location not configured (optional; useful for native profiling support)
• Platform android-29, build-tools 29.0.3
• Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java
• Java version OpenJDK Runtime Environment (build 1.8.0_212-release-1586-b4-5784211)
• All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 11.3.1)
• Xcode at /Applications/Xcode.app/Contents/Developer
• Xcode 11.3.1, Build version 11C504
• CocoaPods version 1.9.2

[✓] Android Studio (version 3.6)
• Android Studio at /Applications/Android Studio.app/Contents
• Flutter plugin version 45.1.1
• Dart plugin version 192.8052
• Java version OpenJDK Runtime Environment (build 1.8.0_212-release-1586-b4-5784211)

[✓] Connected device (1 available)
• Android SDK built for x86 64 • emulator-5556 • android-x64 • Android 10 (API 29) (emulator)

• No issues found!

miguelpruivo · 2020-06-24T12:09:31Z

@nikitaIndianic hum, you are in an old stable that's more than 6 months old, despite having a few earlier hotfixes (I'm currently on the latest 1.17). Would you mind trying flutter upgrade and try afterwards? Might be related.

nikitaIndianic · 2020-06-24T12:11:19Z

i used this version bcs in latest stable version giving issue while we long press on edittext it is not giving paste option.
still let me try with latest version

miguelpruivo · 2020-06-24T12:16:41Z

@nikitaIndianic that's weird. Copy/paste is working properly for me. Let me know if it made any difference.

nikitaIndianic · 2020-06-24T12:55:32Z

yes in latest version it's working
[✓] Flutter (Channel stable, v1.17.3, on Mac OS X 10.15.3 19D76, locale en-IN)
• Flutter version 1.17.3 at /Users/indianic/flutterSDk/flutter
• Framework revision b041144f83 (3 weeks ago), 2020-06-04 09:26:11 -0700
• Engine revision ee76268252
• Dart version 2.8.4

[✓] Android toolchain - develop for Android devices (Android SDK version 29.0.3)
• Android SDK at /Users/indianic/Library/Android/sdk
• Platform android-29, build-tools 29.0.3
• Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java
• Java version OpenJDK Runtime Environment (build 1.8.0_212-release-1586-b4-5784211)
• All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 11.3.1)
• Xcode at /Applications/Xcode.app/Contents/Developer
• Xcode 11.3.1, Build version 11C504
• CocoaPods version 1.9.2

[✓] Android Studio (version 3.6)
• Android Studio at /Applications/Android Studio.app/Contents
• Flutter plugin version 45.1.1
• Dart plugin version 192.8052
• Java version OpenJDK Runtime Environment (build 1.8.0_212-release-1586-b4-5784211)

[✓] Connected device (1 available)
• Android SDK built for x86 64 • emulator-5556 • android-x64 • Android 10 (API 29) (emulator)

• No issues found!

nikitaIndianic · 2020-06-24T13:04:27Z

but i am facing issue with copy/paste will you please verify once is it option working on latest stable version

miguelpruivo · 2020-06-24T13:13:47Z

Ok, so basically this is an issue with Flutter on older versions, surprisingly. @maxbhoria would you mind upgrading Flutter to latest stable as well and see if its working for you? Thanks!

maxbhoria · 2020-06-24T17:42:47Z

Ok, so basically this is an issue with Flutter on older versions, surprisingly. @maxbhoria would you mind upgrading Flutter to latest stable as well and see if its working for you? Thanks!

@miguelpruivo Sure, I will try this later and update here.

Thanks

i-tick · 2020-06-24T18:34:34Z

Im also facing the same issue
app crashes after picking a file

maxbhoria · 2020-06-24T19:07:59Z

but i am facing issue with copy/paste will you please verify once is it option working on latest stable version

read this and try

miguelpruivo · 2020-06-24T20:45:03Z

To anyone experiencing this, please make sure you update to latest Flutter stable (currently 1.17).

vijayFxbytes · 2020-06-25T07:22:25Z

I am too facing the same issue
app crashes after picking a file. Please help me.

skiryuk · 2020-06-25T08:16:34Z

I am too facing the same issue
app crashes after picking a file. Please help me.

Hi, try upgrade your flutter version

vijayFxbytes · 2020-06-25T08:36:16Z

Thx. It is working.

miguelpruivo · 2020-06-25T09:45:25Z

Closing as we’ve finally found the solution. To anyone reading/experiencing this:

Please update to latest Flutter stable version and it should be fixed.

Thanks!

maxbhoria · 2020-06-25T09:47:58Z

Closing as we’ve finally found the solution. To anyone reading/experiencing this:

Please update to latest Flutter stable version and it should be fixed.

Thanks!

i would like to thank to @miguelpruivo and @nikitaIndianic who finally find the reason behind this problem.

Thanks

miguelpruivo · 2020-06-25T10:19:29Z

@maxbhoria thanks for reporting, I'll refer this on the Wiki troubleshooting section as well.

MuGiMac · 2020-07-06T11:43:01Z

Same here bro,..

File image;
void selectimage() async {
image=await FilePicker.getFile();

setState(() {
  image=image;
  imagepath=basename(image.path);
  uploadimagefile(image.readAsBytesSync(),imagepath);
});

}

it just keep exits,................................

V/MusicPlayerPlugin(16068): Activity Save Instance State
I/FilePickerDelegate(16068): [SingleFilePick] File URI:content://com.android.externalstorage.documents/document/primary%3AIMG_20171213_095703670_HDR-01.jpeg
E/FilePickerUtils(16068): Getting for API 19 or abovecontent://com.android.externalstorage.documents/document/primary%3AIMG_20171213_095703670_HDR-01.jpeg
E/AndroidRuntime(16068): FATAL EXCEPTION: Thread-7
E/AndroidRuntime(16068): Process: com.example.ebplayer, PID: 16068
E/AndroidRuntime(16068): java.lang.NullPointerException: Attempt to invoke virtual method 'boolean java.lang.String.equals(java.lang.Object)' on a null object reference
E/AndroidRuntime(16068): at com.mr.flutter.plugin.filepicker.FilePickerDelegate$2.run(FilePickerDelegate.java:106)
E/AndroidRuntime(16068): at java.lang.Thread.run(Thread.java:764)
V/MusicPlayerPlugin(16068): Activity Started
V/MusicPlayerPlugin(16068): Activity Resumed
E/FilePickerUtils(16068): Document URI
E/FilePickerUtils(16068): External Document URI
E/FilePickerUtils(16068): Primary External Document URI
I/FilePickerDelegate(16068): Absolute file path:/storage/emulated/0/IMG_20171213_095703670_HDR-01.jpeg
I/Process (16068): Sending signal. PID: 16068 SIG: 9
Lost connection to device.

miguelpruivo · 2020-07-06T11:44:41Z

@DarK-C0deR Please update to latest Flutter stable version (1.17.x) and it should be fixed.

MuGiMac · 2020-07-07T03:41:50Z

Tnq u Bro,...

charismatest · 2023-07-07T06:05:44Z

I am experiencing this issue on Android 8 (Galaxy A5) and 14 (emulator), getting this error after selecting a file:

java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.String.hashCode()' on a null object reference

BonDizard · 2024-03-16T07:04:45Z

Please help me even for me crash is happening after picking image I'm a beginner so I'm following this course but the guy who did the course did not have crash but I'm getting now idk y.

Flutter 3.19.3 • channel stable

I/flutter ( 7623): granted
D/FilePickerDelegate( 7623): Selected type image/*
D/BLASTBufferQueue( 7623): SurfaceView[com.example.reddit_clone/com.example.reddit_clone.MainActivity]#1 destructor()
D/BufferQueueConsumer( 7623): SurfaceView[com.example.reddit_clone/com.example.reddit_clone.MainActivity]#1(BLAST Consumer)1 disconnect
D/BLASTBufferQueue( 7623): VRI[MainActivity]#0 destructor()
D/BufferQueueConsumer( 7623): VRI[MainActivity]#0(BLAST Consumer)0 disconnect
D/CompatibilityChangeReporter( 7623): Compat change id reported: 78294732; UID 10480; state: ENABLED
D/BufferQueueConsumer( 7623): connect: controlledByApp=false
E/OpenGLRenderer( 7623): Unable to match the desired swap behavior.
D/BufferQueueConsumer( 7623): connect: controlledByApp=false
D/BLASTBufferQueue( 7623): VRI[MainActivity]#2 acquireNextBufferLocked size=1080x2400 mFrameNumber=1 applyTransaction=true mTimestamp=131279244526977(auto) mPendingTransactions.size=0 graphicBufferId=32740535697414 transform=0
D/BLASTBufferQueue( 7623): SurfaceView[com.example.reddit_clone/com.example.reddit_clone.MainActivity]#3 acquireNextBufferLocked size=1080x2349 mFrameNumber=1 applyTransaction=true mTimestamp=131279249779285(auto) mPendingTransactions.size=0 graphicBufferId=32740535697415 transform=0
E/BitmapFactory( 7623): Unable to decode stream: java.io.FileNotFoundException: /storage/emulated/0/Android/media/com.whatsapp/WhatsApp/Media/WhatsApp Images/IMG-20240316-WA0000.jpg: open failed: EACCES (Permission denied)
E/AndroidRuntime( 7623): FATAL EXCEPTION: Thread-6
E/AndroidRuntime( 7623): Process: com.example.reddit_clone, PID: 7623
E/AndroidRuntime( 7623): java.lang.NullPointerException: Attempt to invoke virtual method 'boolean android.graphics.Bitmap.compress(android.graphics.Bitmap$CompressFormat, int, java.io.OutputStream)' on a null object reference
E/AndroidRuntime( 7623): at com.mr.flutter.plugin.filepicker.FileUtils.compressImage(FileUtils.java:106)
E/AndroidRuntime( 7623): at com.mr.flutter.plugin.filepicker.FilePickerDelegate$2.run(FilePickerDelegate.java:104)
E/AndroidRuntime( 7623): at java.lang.Thread.run(Thread.java:1012)
I/Process ( 7623): Sending signal. PID: 7623 SIG: 9
Lost connection to device.


import 'dart:io';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:flutter/material.dart';
import 'package:reddit_clone/core/common/error_text.dart';
import 'package:reddit_clone/core/common/loader.dart';
import 'package:reddit_clone/core/constants/constants.dart';
import 'package:reddit_clone/core/utils.dart';
import 'package:reddit_clone/features/community/controller/community_controller.dart';
import 'package:reddit_clone/models/community_model.dart';
import 'package:reddit_clone/theme/pallet.dart';
import 'package:dotted_border/dotted_border.dart';
import 'package:permission_handler/permission_handler.dart';
import 'package:device_info_plus/device_info_plus.dart';

class EditCommunityScreen extends ConsumerStatefulWidget {
  final String name;
  const EditCommunityScreen({
    super.key,
    required this.name,
  });

  @override
  ConsumerState<EditCommunityScreen> createState() =>
      _EditCommunityScreenState();
}

class _EditCommunityScreenState extends ConsumerState<EditCommunityScreen> {
  File? bannerFile;
  File? profileFile;

  void test() async {
    final plugin = DeviceInfoPlugin();
    final android = await plugin.androidInfo;

    final storageStatus = android.version.sdkInt < 33
        ? await Permission.storage.request()
        : PermissionStatus.granted;

    if (storageStatus == PermissionStatus.granted) {
      print("granted");
    }
    if (storageStatus == PermissionStatus.denied) {
      print("denied");
    }
    if (storageStatus == PermissionStatus.permanentlyDenied) {
      openAppSettings();
    }
  }

  @override
  void initState() {
    super.initState();
    test();
  }

  void save(Community community) {
    ref.read(communityControllerProvider.notifier).editCommunity(
          profileFile: profileFile,
          bannerFile: bannerFile,
          context: context,
          community: community,
        );
  }

  void selectBannerImage() async {
    final res = await pickImage();
    if (res != null) {
      setState(() {
        final filePath = res.files.first.path;
        if (filePath != null) {
          bannerFile = File(filePath);
        } else {
          // Fallback to default image if file path is null
          bannerFile = File('assets/images/google.png');
          print('File path is null');
        }
      });
    }
  }

  void selectProfileImage() async {
    final res = await pickImage();
    if (res != null) {
      setState(() {
        final filePath = res.files.first.path;
        if (filePath != null) {
          profileFile = File(filePath);
        } else {
          // Fallback to default image if file path is null
          profileFile = File('assets/images/google.png');
          print('File path is null');
        }
      });
    }
  }

  @override
  Widget build(BuildContext context) {
    return ref.watch(getCommunityNameByNameProvider(widget.name)).when(
          data: (community) => Scaffold(
            backgroundColor: Pallete.darkModeAppTheme.backgroundColor,
            appBar: AppBar(
              title: const Text("Edit Community"),
              actions: [
                TextButton(
                  onPressed: () {
                    save(community);
                  },
                  child: const Text(
                    'Save',
                  ),
                ),
              ],
            ),
            body: Padding(
              padding: const EdgeInsets.all(8.0),
              child: SizedBox(
                height: 300,
                child: Column(
                  children: [
                    Stack(
                      children: [
                        GestureDetector(
                          onTap: () {
                            selectBannerImage();
                          },
                          child: DottedBorder(
                            borderType: BorderType.RRect,
                            radius: const Radius.circular(10),
                            dashPattern: const [10, 4],
                            strokeCap: StrokeCap.round,
                            color: Pallete
                                .darkModeAppTheme.textTheme.bodySmall!.color!,
                            child: Container(
                              width: double.infinity,
                              height: 150,
                              decoration: BoxDecoration(
                                borderRadius: BorderRadius.circular(10),
                              ),
                              child: bannerFile != null
                                  ? Image.file(bannerFile!)
                                  : community.banner.isEmpty ||
                                          community.banner ==
                                              Constants.bannerDefault
                                      ? const Center(
                                          child: Icon(
                                            Icons.camera_alt_outlined,
                                            size: 40,
                                          ),
                                        )
                                      : Image.network(community.banner),
                            ),
                          ),
                        ),
                        Positioned(
                          bottom: 20,
                          left: 20,
                          child: GestureDetector(
                            onTap: () {
                              selectProfileImage();
                            },
                            child: profileFile != null
                                ? CircleAvatar(
                                    backgroundImage: FileImage(profileFile!),
                                    radius: 32,
                                  )
                                : CircleAvatar(
                                    backgroundImage:
                                        NetworkImage(community.avatar),
                                    radius: 32,
                                  ),
                          ),
                        ),
                      ],
                    ),
                  ],
                ),
              ),
            ),
          ),
          error: (error, stackTrace) => ErrorText(
            error: error.toString(),
          ),
          loading: () => const Loader(),
        );
  }
}

//the below is the method for picking image


Future<FilePickerResult?> pickImage() async {
  final image = await FilePicker.platform.pickFiles(type: FileType.image);

  return image;
}

maxbhoria added the new issue An issue that hasn't yet been seen from the maintainer label Jun 8, 2020

maxbhoria changed the title ~~File not picking on my android device~~ App crash on file pick in android Jun 8, 2020

maxbhoria closed this as completed Jun 8, 2020

maxbhoria reopened this Jun 8, 2020

miguelpruivo closed this as completed Jun 25, 2020

miguelpruivo mentioned this issue Jun 26, 2020

Null Pointer exception in getMultifile #303

Closed

App crash on file pick in android #286

App crash on file pick in android #286

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