An app showcasing Flutter components, with side-by-side source code view.

Last update: Jun 28, 2022

Flutter Catalog

Get it on Google Play Get it on AppStore Awesome Flutter

An app showcasing Flutter components, with side-by-side source code view.

🚀 🚀 New: Flutter Catalog is now available in the browser! Check it out here. And note there are some limitations to the web variant.

Screenshots

How to contribute by adding a new example page

  1. Create a dart file under lib/route/ (or just duplicate a file, e.g. cp widgets_icon_ex.dart new_example.dart);
  2. In the new file, create a class that extends MyRoute;
  3. Add constructor, the convention is to use the file path as constructor's default parameter;
  4. (Optional) override getters: title, description, links;
  5. Override buildMyRouteContent(), try to make the code simple, as it'll be shown on phone screens;
  6. Open lib/my_app_meta.dart, import the new file at the beginning of file;
  7. In kMyAppRoutesStructure, add an instantiation of the new class under the appropriate item group.

Credits

This app is written with reference to many resources, including:

GitHub

https://github.com/X-Wei/flutter_catalog
Comments

  • 1. does not compile with latest flutter release

    I get a following compiler error when just cloning and building this project:

    C:\Projects\flutter_catalog>flutter doctor -v [√] Flutter (Channel master, v1.1.6-pre.34, on Microsoft Windows [Version 10.0.17134.472], locale en-US) • Flutter version 1.1.6-pre.34 at c:\sdks\flutter • Framework revision d06e4325d8 (3 hours ago), 2019-01-06 07:20:36 +0800 • Engine revision 716185fb79 • Dart version 2.1.1 (build 2.1.1-dev.0.1 ec86471ccc)

    [√] Android toolchain - develop for Android devices (Android SDK version 28.0.3) • Android SDK at C:\Users\ride4\AppData\Local\Android\sdk • Android NDK location not configured (optional; useful for native profiling support) • Platform android-28, build-tools 28.0.3 • Java binary at: C:\Program Files\Android\Android Studio\jre\bin\java • Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1136-b06) • All Android licenses accepted.

    [√] Android Studio (version 3.2) • Android Studio at C:\Program Files\Android\Android Studio • Flutter plugin version 31.3.1 • Dart plugin version 181.5656 • Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1136-b06)

    [√] IntelliJ IDEA Community Edition (version 2017.3) • IntelliJ at C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 2017.3.5 • Flutter plugin version 22.2.2 • Dart plugin version 173.4700

    [√] VS Code, 32-bit edition (version 1.30.1) • VS Code at C:\Program Files (x86)\Microsoft VS Code • Flutter extension version 2.21.1

    [√] Connected device (1 available) • moto g 6 • ZY322W3HK7 • android-arm • Android 8.0.0 (API 26)

    • No issues found!

    18:14:50.944 1 info flutter.tools [ +33 ms] executing: [C:\sdks\flutter] git rev-parse --abbrev-ref --symbolic @{u} 18:14:50.993 2 info flutter.tools [ +63 ms] Exit code 0 from: git rev-parse --abbrev-ref --symbolic @{u} 18:14:50.993 3 info flutter.tools [ ] origin/master 18:14:50.993 4 info flutter.tools [ ] executing: [C:\sdks\flutter] git rev-parse --abbrev-ref HEAD 18:14:51.031 5 info flutter.tools [ +37 ms] Exit code 0 from: git rev-parse --abbrev-ref HEAD 18:14:51.031 6 info flutter.tools [ ] master 18:14:51.031 7 info flutter.tools [ ] executing: [C:\sdks\flutter] git ls-remote --get-url origin 18:14:51.069 8 info flutter.tools [ +36 ms] Exit code 0 from: git ls-remote --get-url origin 18:14:51.069 9 info flutter.tools [ ] https://github.com/flutter/flutter 18:14:51.069 10 info flutter.tools [ ] executing: [C:\sdks\flutter] git log -n 1 --pretty=format:%H 18:14:51.107 11 info flutter.tools [ +37 ms] Exit code 0 from: git log -n 1 --pretty=format:%H 18:14:51.107 12 info flutter.tools [ ] d06e4325d87e9d82a7221a73dcb9bcb03c087c81 18:14:51.107 13 info flutter.tools [ ] executing: [C:\sdks\flutter] git log -n 1 --pretty=format:%ar 18:14:51.145 14 info flutter.tools [ +37 ms] Exit code 0 from: git log -n 1 --pretty=format:%ar 18:14:51.145 15 info flutter.tools [ ] 3 hours ago 18:14:51.145 16 info flutter.tools [ ] executing: [C:\sdks\flutter] git describe --match v*.. --first-parent --long --tags 18:14:51.201 17 info flutter.tools [ +52 ms] Exit code 0 from: git describe --match v*.. --first-parent --long --tags 18:14:51.201 18 info flutter.tools [ ] v1.1.5-34-gd06e4325d 18:14:51.323 19 info flutter.tools [ +121 ms] executing: C:\Users\ride4\AppData\Local\Android\sdk\platform-tools\adb devices -l 18:14:51.348 20 info flutter.tools [ +23 ms] Exit code 0 from: C:\Users\ride4\AppData\Local\Android\sdk\platform-tools\adb devices -l 18:14:51.348 21 info flutter.tools [ ] List of devices attached 18:14:51.348 22 info flutter.tools ZY322W3HK7 device product:ali_amz model:moto_g_6_ device:ali transport_id:1 18:14:51.474 23 info flutter.tools [ +130 ms] Found plugin cloud_firestore at C:\Users\ride4\AppData\Roaming\Pub\Cache\hosted\pub.dartlang.org\cloud_firestore-0.8.2+3
    18:14:51.487 24 info flutter.tools [ +7 ms] Found plugin firebase_analytics at C:\Users\ride4\AppData\Roaming\Pub\Cache\hosted\pub.dartlang.org\firebase_analytics-1.1.0
    18:14:51.487 25 info flutter.tools [ +2 ms] Found plugin firebase_auth at C:\Users\ride4\AppData\Roaming\Pub\Cache\hosted\pub.dartlang.org\firebase_auth-0.6.6
    18:14:51.487 26 info flutter.tools [ +1 ms] Found plugin firebase_core at C:\Users\ride4\AppData\Roaming\Pub\Cache\hosted\pub.dartlang.org\firebase_core-0.2.5+1
    18:14:51.489 27 info flutter.tools [ +2 ms] Found plugin firebase_database at C:\Users\ride4\AppData\Roaming\Pub\Cache\hosted\pub.dartlang.org\firebase_database-1.0.5
    18:14:51.497 28 info flutter.tools [ +3 ms] Found plugin firebase_ml_vision at C:\Users\ride4\AppData\Roaming\Pub\Cache\hosted\pub.dartlang.org\firebase_ml_vision-0.2.0+2
    18:14:51.497 29 info flutter.tools [ +3 ms] Found plugin firebase_storage at C:\Users\ride4\AppData\Roaming\Pub\Cache\hosted\pub.dartlang.org\firebase_storage-1.0.4
    18:14:51.505 30 info flutter.tools [ +10 ms] Found plugin flutter_webview_plugin at C:\Users\ride4\AppData\Roaming\Pub\Cache\hosted\pub.dartlang.org\flutter_webview_plugin-0.3.0+2
    18:14:51.507 31 info flutter.tools [ +2 ms] Found plugin fluttertoast at C:\Users\ride4\AppData\Roaming\Pub\Cache\hosted\pub.dartlang.org\fluttertoast-2.2.3
    18:14:51.509 32 info flutter.tools [ +1 ms] Found plugin google_sign_in at C:\Users\ride4\AppData\Roaming\Pub\Cache\hosted\pub.dartlang.org\google_sign_in-3.2.4
    18:14:51.517 33 info flutter.tools [ +3 ms] Found plugin image_picker at C:\Users\ride4\AppData\Roaming\Pub\Cache\hosted\pub.dartlang.org\image_picker-0.4.10
    18:14:51.519 34 info flutter.tools [ +6 ms] Found plugin path_provider at C:\Users\ride4\AppData\Roaming\Pub\Cache\hosted\pub.dartlang.org\path_provider-0.4.1
    18:14:51.527 35 info flutter.tools [ +4 ms] Found plugin shared_preferences at C:\Users\ride4\AppData\Roaming\Pub\Cache\hosted\pub.dartlang.org\shared_preferences-0.4.3
    18:14:51.540 36 info flutter.tools [ +15 ms] Found plugin url_launcher at C:\Users\ride4\AppData\Roaming\Pub\Cache\hosted\pub.dartlang.org\url_launcher-3.0.3
    18:14:51.578 37 info flutter.tools [ +36 ms] Found plugin cloud_firestore at C:\Users\ride4\AppData\Roaming\Pub\Cache\hosted\pub.dartlang.org\cloud_firestore-0.8.2+3
    18:14:51.580 38 info flutter.tools [ +3 ms] Found plugin firebase_analytics at C:\Users\ride4\AppData\Roaming\Pub\Cache\hosted\pub.dartlang.org\firebase_analytics-1.1.0
    18:14:51.582 39 info flutter.tools [ +1 ms] Found plugin firebase_auth at C:\Users\ride4\AppData\Roaming\Pub\Cache\hosted\pub.dartlang.org\firebase_auth-0.6.6
    18:14:51.584 40 info flutter.tools [ +1 ms] Found plugin firebase_core at C:\Users\ride4\AppData\Roaming\Pub\Cache\hosted\pub.dartlang.org\firebase_core-0.2.5+1
    18:14:51.586 41 info flutter.tools [ +1 ms] Found plugin firebase_database at C:\Users\ride4\AppData\Roaming\Pub\Cache\hosted\pub.dartlang.org\firebase_database-1.0.5
    18:14:51.588 42 info flutter.tools [ +2 ms] Found plugin firebase_ml_vision at C:\Users\ride4\AppData\Roaming\Pub\Cache\hosted\pub.dartlang.org\firebase_ml_vision-0.2.0+2
    18:14:51.590 43 info flutter.tools [ +1 ms] Found plugin firebase_storage at C:\Users\ride4\AppData\Roaming\Pub\Cache\hosted\pub.dartlang.org\firebase_storage-1.0.4
    18:14:51.597 44 info flutter.tools [ +5 ms] Found plugin flutter_webview_plugin at C:\Users\ride4\AppData\Roaming\Pub\Cache\hosted\pub.dartlang.org\flutter_webview_plugin-0.3.0+2
    18:14:51.597 45 info flutter.tools [ +1 ms] Found plugin fluttertoast at C:\Users\ride4\AppData\Roaming\Pub\Cache\hosted\pub.dartlang.org\fluttertoast-2.2.3
    18:14:51.597 46 info flutter.tools [ +1 ms] Found plugin google_sign_in at C:\Users\ride4\AppData\Roaming\Pub\Cache\hosted\pub.dartlang.org\google_sign_in-3.2.4
    18:14:51.599 47 info flutter.tools [ +1 ms] Found plugin image_picker at C:\Users\ride4\AppData\Roaming\Pub\Cache\hosted\pub.dartlang.org\image_picker-0.4.10
    18:14:51.607 48 info flutter.tools [ +3 ms] Found plugin path_provider at C:\Users\ride4\AppData\Roaming\Pub\Cache\hosted\pub.dartlang.org\path_provider-0.4.1
    18:14:51.607 49 info flutter.tools [ +2 ms] Found plugin shared_preferences at C:\Users\ride4\AppData\Roaming\Pub\Cache\hosted\pub.dartlang.org\shared_preferences-0.4.3
    18:14:51.621 50 info flutter.tools [ +14 ms] Found plugin url_launcher at C:\Users\ride4\AppData\Roaming\Pub\Cache\hosted\pub.dartlang.org\url_launcher-3.0.3
    18:14:51.665 51 info flutter.tools [ +45 ms] C:\Users\ride4\AppData\Local\Android\sdk\platform-tools\adb -s ZY322W3HK7 shell getprop 18:14:51.784 52 info flutter.tools [ +114 ms] ro.hardware = qcom 18:14:52.456 53 info flutter.tools [ +674 ms] Launching lib\main.dart on moto g 6 in debug mode... 18:14:52.470 54 info flutter.tools Initializing gradle... 18:14:52.470 55 info flutter.tools [ +18 ms] Using gradle from C:\Projects\flutter_catalog\android\gradlew.bat. 18:14:52.747 56 info flutter.tools [ +273 ms] executing: C:\Projects\flutter_catalog\android\gradlew.bat -v 18:14:53.419 57 info flutter.tools [ +670 ms] 18:14:53.419 58 info flutter.tools ------------------------------------------------------------ 18:14:53.419 59 info flutter.tools Gradle 4.1 18:14:53.419 60 info flutter.tools ------------------------------------------------------------ 18:14:53.419 61 info flutter.tools 18:14:53.419 62 info flutter.tools Build time: 2017-08-07 14:38:48 UTC 18:14:53.419 63 info flutter.tools Revision: 941559e020f6c357ebb08d5c67acdb858a3defc2 18:14:53.419 64 info flutter.tools 18:14:53.419 65 info flutter.tools Groovy: 2.4.11 18:14:53.419 66 info flutter.tools Ant: Apache Ant(TM) version 1.9.6 compiled on June 29 2015 18:14:53.419 67 info flutter.tools JVM: 1.8.0_152-release (JetBrains s.r.o 25.152-b06) 18:14:53.419 68 info flutter.tools OS: Windows 10 10.0 amd64 18:14:53.419 69 info flutter.tools Resolving dependencies... 18:14:53.419 70 info flutter.tools [ +1 ms] executing: [C:\Projects\flutter_catalog\android] C:\Projects\flutter_catalog\android\gradlew.bat app:properties 18:14:54.845 71 info flutter.tools [+1423 ms] 18:14:54.845 72 info flutter.tools FAILURE: Build failed with an exception. 18:14:54.845 73 info flutter.tools 18:14:54.845 74 info flutter.tools * Where: 18:14:54.845 75 info flutter.tools Build file 'C:\Projects\flutter_catalog\android\app\build.gradle' line: 61 18:14:54.845 76 info flutter.tools 18:14:54.845 77 info flutter.tools * What went wrong: 18:14:54.845 78 info flutter.tools A problem occurred evaluating project ':app'. 18:14:54.845 79 info flutter.tools > path may not be null or empty string. path='null' 18:14:54.845 80 info flutter.tools 18:14:54.845 81 info flutter.tools * Try: 18:14:54.845 82 info flutter.tools Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. 18:14:54.845 83 info flutter.tools 18:14:54.845 84 info flutter.tools * Get more help at https://help.gradle.org 18:14:54.845 85 info flutter.tools 18:14:54.845 86 info flutter.tools BUILD FAILED in 1s 18:14:54.850 87 info flutter.tools [ +5 ms] * Error running Gradle: 18:14:54.850 88 info flutter.tools ProcessException: Process "C:\Projects\flutter_catalog\android\gradlew.bat" exited abnormally: 18:14:54.850 89 info flutter.tools 18:14:54.850 90 info flutter.tools FAILURE: Build failed with an exception. 18:14:54.850 91 info flutter.tools 18:14:54.850 92 info flutter.tools * Where: 18:14:54.850 93 info flutter.tools Build file 'C:\Projects\flutter_catalog\android\app\build.gradle' line: 61 18:14:54.850 94 info flutter.tools 18:14:54.850 95 info flutter.tools * What went wrong: 18:14:54.850 96 info flutter.tools A problem occurred evaluating project ':app'. 18:14:54.850 97 info flutter.tools > path may not be null or empty string. path='null' 18:14:54.850 98 info flutter.tools 18:14:54.850 99 info flutter.tools * Try: 18:14:54.850 100 info flutter.tools Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. 18:14:54.850 101 info flutter.tools 18:14:54.850 102 info flutter.tools * Get more help at https://help.gradle.org 18:14:54.850 103 info flutter.tools 18:14:54.850 104 info flutter.tools BUILD FAILED in 1s 18:14:54.850 105 info flutter.tools Command: C:\Projects\flutter_catalog\android\gradlew.bat app:properties 18:14:54.850 106 info flutter.tools

    Reviewed by ride4sun at 2019-01-06 02:17

  • 2. Please commit 'GoogleService-Info.plist'

    Meeting this issue when try to run on iOS simulator. Please download 'GoogleService-Info.plist' from firebase console and commit it.

    Chandlers-Plexure-Mac:flutter_catalog chandlercheng$ flutter run
 
Launching lib/main.dart on iPhone 11 Pro Max in debug mode...
Running Xcode build...                                                  
                                                   
 ├─Assembling Flutter resources...                           3.9s
 └─Compiling, linking and signing...                         7.1s
Xcode build done.                                           20.4s
	path: satisfied (Path is satisfied), interface: en0
Configuring the default Firebase app...
6.22.0 - [Firebase/Core][I-COR000004] App with name __FIRAPP_DEFAULT does not exist.
6.22.0 - [Firebase/Core][I-COR000012] Could not locate configuration file: 'GoogleService-Info.plist'.
*** First throw call stack:
(
	0   CoreFoundation                      0x00007fff23e3dcce __exceptionPreprocess + 350
	1   libobjc.A.dylib                     0x00007fff50b3b9b2 objc_exception_throw + 48
	2   CoreFoundation                      0x00007fff23e3db0c +[NSException raise:format:] + 188
	3   Runner                              0x000000010ba0b852 +[FIRApp configure] + 130
	4   Runner                              0x000000010c140249 -[FLTCloudFirestorePlugin init] + 217
	5   Runner                              0x000000010c140056 +[FLTCloudFirestorePlugin registerWithRegistrar:] + 262
	6   Runner                              0x000000010b82f776 +[GeneratedPluginRegistrant registerWithRegistry:] + 118
	7   Runner                        <…>
This is taking longer than expected...
    Reviewed by MilkBiscuit at 2020-04-12 00:36

  • 3. Android X crash

    Launching lib/main.dart on SM N960F in debug mode... Initializing gradle... Resolving dependencies... Running Gradle task 'assembleDebug'... registerResGeneratingTask is deprecated, use registerGeneratedFolders(FileCollection) registerResGeneratingTask is deprecated, use registerGeneratedFolders(FileCollection) registerResGeneratingTask is deprecated, use registerGeneratedFolders(FileCollection) registerResGeneratingTask is deprecated, use registerGeneratedFolders(FileCollection) registerResGeneratingTask is deprecated, use registerGeneratedFolders(FileCollection) /Users/amber052829/.gradle/caches/transforms-1/files-1.1/appcompat-1.0.0.aar/9dc6bf8858af1423a011fd4dc5c70991/res/values-v28/values-v28.xml:9:5-12:13: AAPT: error: resource android:attr/dialogCornerRadius not found.

    /Users/amber052829/Downloads/flutter_catalog-master/build/app/intermediates/incremental/mergeDebugResources/merged.dir/values-v28/values-v28.xml:11: AAPT: error: resource android:attr/dialogCornerRadius not found.

    /Users/amber052829/.gradle/caches/transforms-1/files-1.1/appcompat-v7-27.1.1.aar/a9b2e378eea0f38d8a58eccbcf91c64a/res/values/values.xml:251:5-69: AAPT: error: resource android:attr/fontVariationSettings not found.

    /Users/amber052829/.gradle/caches/transforms-1/files-1.1/appcompat-v7-27.1.1.aar/a9b2e378eea0f38d8a58eccbcf91c64a/res/values/values.xml:251:5-69: AAPT: error: resource android:attr/ttcIndex not found.

    /Users/amber052829/Downloads/flutter_catalog-master/build/app/intermediates/incremental/mergeDebugResources/merged.dir/values-v28/values-v28.xml:7: error: resource android:attr/dialogCornerRadius not found. /Users/amber052829/Downloads/flutter_catalog-master/build/app/intermediates/incremental/mergeDebugResources/merged.dir/values-v28/values-v28.xml:11: error: resource android:attr/dialogCornerRadius not found. /Users/amber052829/Downloads/flutter_catalog-master/build/app/intermediates/incremental/mergeDebugResources/merged.dir/values/values.xml:244: error: resource android:attr/fontVariationSettings not found. /Users/amber052829/Downloads/flutter_catalog-master/build/app/intermediates/incremental/mergeDebugResources/merged.dir/values/values.xml:244: error: resource android:attr/ttcIndex not found. error: failed linking references.

    Failed to execute aapt com.android.ide.common.process.ProcessException: Failed to execute aapt at com.android.builder.core.AndroidBuilder.processResources(AndroidBuilder.java:796) at com.android.build.gradle.tasks.ProcessAndroidResources.invokeAaptForSplit(ProcessAndroidResources.java:551) at com.android.build.gradle.tasks.ProcessAndroidResources.doFullTaskAction(ProcessAndroidResources.java:285) at com.android.build.gradle.internal.tasks.IncrementalTask.taskAction(IncrementalTask.java:109) at sun.reflect.GeneratedMethodAccessor416.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:73) at org.gradle.api.internal.project.taskfactory.DefaultTaskClassInfoStore$IncrementalTaskAction.doExecute(DefaultTaskClassInfoStore.java:173) at org.gradle.api.internal.project.taskfactory.DefaultTaskClassInfoStore$StandardTaskAction.execute(DefaultTaskClassInfoStore.java:134) at org.gradle.api.internal.project.taskfactory.DefaultTaskClassInfoStore$StandardTaskAction.execute(DefaultTaskClassInfoStore.java:121) at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$1.run(ExecuteActionsTaskExecuter.java:122) at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:336) at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:328) at org.gradle.internal.progress.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:197) at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:107) at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:111) at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:92) at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:70) at org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute(SkipUpToDateTaskExecuter.java:63) at org.gradle.api.internal.tasks.execution.ResolveTaskOutputCachingStateExecuter.execute(ResolveTaskOutputCachingStateExecuter.java:54) at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:58) at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:88) at org.gradle.api.internal.tasks.execution.ResolveTaskArtifactStateTaskExecuter.execute(ResolveTaskArtifactStateTaskExecuter.java:52) at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:52) at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:54) at org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter.execute(ExecuteAtMostOnceTaskExecuter.java:43) at org.gradle.api.internal.tasks.execution.CatchExceptionTaskExecuter.execute(CatchExceptionTaskExecuter.java:34) at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker$1.run(DefaultTaskGraphExecuter.java:248) at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:336) at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:328) at org.gradle.internal.progress.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:197) at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:107) at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:241) at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:230) at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker.processTask(DefaultTaskPlanExecutor.java:124) at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker.access$200(DefaultTaskPlanExecutor.java:80) at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker$1.execute(DefaultTaskPlanExecutor.java:105) at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker$1.execute(DefaultTaskPlanExecutor.java:99) at org.gradle.execution.taskgraph.DefaultTaskExecutionPlan.execute(DefaultTaskExecutionPlan.java:625) at org.gradle.execution.taskgraph.DefaultTaskExecutionPlan.executeWithTask(DefaultTaskExecutionPlan.java:580) at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker.run(DefaultTaskPlanExecutor.java:99) at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63) at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:46) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55) at java.lang.Thread.run(Thread.java:745) Caused by: java.util.concurrent.ExecutionException: java.util.concurrent.ExecutionException: com.android.tools.aapt2.Aapt2Exception: AAPT2 error: check logs for details at com.google.common.util.concurrent.AbstractFuture.getDoneValue(AbstractFuture.java:503) at com.google.common.util.concurrent.AbstractFuture.get(AbstractFuture.java:482) at com.google.common.util.concurrent.AbstractFuture$TrustedFuture.get(AbstractFuture.java:79) at com.android.builder.core.AndroidBuilder.processResources(AndroidBuilder.java:794) ... 47 more Caused by: java.util.concurrent.ExecutionException: com.android.tools.aapt2.Aapt2Exception: AAPT2 error: check logs for details at com.google.common.util.concurrent.AbstractFuture.getDoneValue(AbstractFuture.java:503) at com.google.common.util.concurrent.AbstractFuture.get(AbstractFuture.java:462) at com.google.common.util.concurrent.AbstractFuture$TrustedFuture.get(AbstractFuture.java:79) at com.android.builder.internal.aapt.v2.QueueableAapt2.lambda$makeValidatedPackage$1(QueueableAapt2.java:179) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) ... 1 more Caused by: com.android.tools.aapt2.Aapt2Exception: AAPT2 error: check logs for details at com.android.builder.png.AaptProcess$NotifierProcessOutput.handleOutput(AaptProcess.java:463) at com.android.builder.png.AaptProcess$NotifierProcessOutput.err(AaptProcess.java:415) at com.android.builder.png.AaptProcess$ProcessOutputFacade.err(AaptProcess.java:332) at com.android.utils.GrabProcessOutput$1.run(GrabProcessOutput.java:104)

    FAILURE: Build failed with an exception.

    • What went wrong: Execution failed for task ':app:processDebugResources'.

    Failed to execute aapt

    • Try: Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

    • Get more help at https://help.gradle.org

    BUILD FAILED in 4s

    The Gradle failure may have been because of AndroidX incompatibilities in this Flutter app. See https://goo.gl/CP92wY for more information on the problem and how to fix it.

    Finished with error: Gradle task assembleDebug failed with exit code 1

    Given methods online don't seem to be working.

    Reviewed by Amber052829 at 2019-05-13 23:10

  • 4. Build Fails! Help please.

    Launching lib/main.dart on SM N960F in debug mode... Initializing gradle... Resolving dependencies...

    • Error running Gradle: ProcessException: Process "/Users/amber052829/Downloads/flutter_catalog-master/android/gradlew" exited abnormally: FAILURE: Build failed with an exception.

    • Where: Build file '/Users/amber052829/Downloads/flutter_catalog-master/android/app/build.gradle' line: 61

    • What went wrong: A problem occurred evaluating project ':app'.

    path may not be null or empty string. path='null'

    • Try: Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

    • Get more help at https://help.gradle.org

    BUILD FAILED in 0s Command: /Users/amber052829/Downloads/flutter_catalog-master/android/gradlew app:properties

    Reviewed by Amber052829 at 2019-05-11 09:50

  • 5. App crashing on clicking 'go home' button

    In Navigation/routes section , their is a go home button in the last page(need to navigate to last page ) ,on clicking the Screenshot_20201127-182206 app crashes and black screen appear.

    Reviewed by kamlesh1687 at 2020-11-27 12:52

  • 6. Build failed by Flutter v1.0.0

    error message:

    
FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:preDebugBuild'.
> Android dependency 'com.android.support:support-fragment' has different version for the compile (26.1.0) and runtime (27.1.1) classpath. You should manually set the same version via DependencyResolution

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

* Get more help at https://help.gradle.org

BUILD FAILED in 6s
    Reviewed by jonahfang at 2018-12-23 13:11

  • 7. Error on Local file read/write component

    In the Local file read/write component which is inside Persistence, when the user hasn't input some text and saved it but clicks on Load, an error text is shown (the following image illustrates that):

    1

    Proposed Solution: When the user hasn't saved some text, you could show a dialog indicating the user, that he must save something first in order to load the saved text.

    Reviewed by linaCardozo at 2022-05-21 03:12

  • 8. Master raheem

    Fix the "Basics -> Widgets -> TextField shows incorrect count of words #125"

    The second Multiline input field counts words incorrectly:

    it always shows 1 even there is no words it doesn't count the word when you get down to new line (like pressing enter) also placeholder text or hint is displayed in the middle of the TextInput, it would be nice if its gravity set to start and top.

    Reviewed by raheemadamboev at 2022-04-13 13:39

  • 9. move flutter official gallery link

    Reviewed by 4geru at 2022-03-18 22:38

  • 10. Added Animated Radial Menu demo

    https://user-images.githubusercontent.com/67534990/126862380-6a8d5a25-1bab-4308-a7d0-a9d88e7492cb.mp4

    @X-Wei Please have a look at this PR , Let me know if anything needs to be changed .

    Reviewed by sonykurian96 at 2021-07-24 08:21

  • 11. is there is iOS alike editable list view ?

    Hi , can you supply a widget that simulate ios editable view ? in editable mode , the list item left has delete button , right has drag-drop button and can reorder it ,also it has a add button to add a new row ...the list view is pretty common in ios but i can't find in it flutter ... thanks .

    Reviewed by a22349 at 2021-01-25 03:07

  • 12. TextFormField issue

    First thanks for the app it has been really helpful. Now knowing that the app focus is to help people know on how to add some features flutter provides, in TextFormField where the user imputs the email it will be for the best to add an email verification if the user imputed a correct email format, maybe use the email validator package as an example. Finally for salary even if I can only imput number I can copy letters and paste them as a salary. This error can be seen in the image below.

    image

    Reviewed by dgguarin20 at 2022-05-21 04:25

  • 13. hacker news : error thrown retrieving article list

    Nicce example code and generally working, but retrieving articles seems erratic I am getting this error :

    ════════ Exception caught by widgets library ═══════════════════════════════════
The following _CastError was thrown building FutureBuilder<String>(dirty, state: _FutureBuilderState<String>#018ec):
type 'Null' is not a subtype of type 'String' in type cast

The relevant error-causing widget was
FutureBuilder<String>
lib/screens/news.dart:57
When the exception was thrown, this was the stack
#0      new MyHackerNewsArticle.fromJson
lib/screens/news.dart:167
#1      _NewsPage.build.<anonymous closure>.<anonymous closure>
lib/screens/news.dart:68
#2      _FutureBuilderState.build
package:flutter/…/widgets/async.dart:775
#3      StatefulElement.build
package:flutter/…/widgets/framework.dart:4691
#4      ComponentElement.performRebuild
package:flutter/…/widgets/framework.dart:4574

    I tried checking for nulls in retrieved article metadata, but ti does not fix the problem. I'm thinking that _NewsPage.build.<anonymous closure>.<anonymous closure> is the problem. How can I make this robust for network errors ?

    Reviewed by timconsidine at 2021-08-12 20:57

  • 14. FirebaseVision.instance.textRecognizer().processImage(visionImage) not working

    Hi X-Wei,

    Thank you for creating this flutter catalog. It helps in many ways for newbie like me.

    I have tried your app-store version of TEXTOCR, it works perfectly.

    I have tried your code and it works in Android device.

    For IOS, the below code is not working. So, the visionText do not have result.

    FirebaseVision.instance.textRecognizer().processImage(visionImage);

    Can check with you if your app-store version using textRecognizer or cloudTextRecognizer?

    Reviewed by junnyea at 2020-05-19 16:59

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