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An app to learn vocabularies, developed with flutter.

License: MIT License

Kotlin 0.15% Swift 0.41% Objective-C 0.04% Dart 85.17% CMake 8.89% C++ 4.65% C 0.70%

android flutter ios mobile-app vocabulary-learning

vocabulary-trainer-app's Introduction

Vocabulary Trainer

An app to learn vocabularies, developed with flutter.

Build

First you need to download all dart packages.

flutter pub get

Before you can run the normal flutter build command, please run the following command to generate the required database code:

flutter packages pub run build_runner build

After that just the normal build command:

flutter build

Database Structure

Database structure looks like this as ERM-Diagram:

Transformed to a RDBMS-Diagram (text form) the structure looks like this:

VocabularyCollection(id, title, languageA, languageB)
Vocabulary(id, languageA, languageARegex, languageB, languageBRegex, collectionID(FK))

To find out more about the meanings of the attributes look at the file "assets/vocabulary-collection.schema.json".
Note: The Vocabulary object (mentioned here) is the equivalent to the "vocabularies" key in the schema file.

vocabulary-trainer-app's People

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vocabulary-trainer-app's Issues

After activity restart: the next button is not shown

Devices where the problem occurred

Pixel 3a API 33 x86 64 (Virtual Device)
Samsung Galaxy A70 (SM-A705FN)

Steps to reproduce

Open a collection (Start training)
Restart Activity (Toggle dark mode, rotate screen or something else)
Type the correct answer
Click on 'Check answer'

Expected behavior

'Next' Button is shown

Actual behavior

'Next' Button is not shown

Support import of XML File

Support the import of files like the one attached to this issue.

Note: This is a xml not a txt file. (Is txt because GitHub does not support xml)

example.xml.txt

File import does not work (maybe only on some devices)"

An problem appeared in the android emulator (Pixel 3a API 33 x86_64).

If I try to import a file the following dialog is shown.

It looks like the file chooser activity returns not the actual filename and because of the this exception happens.

App crashes on Samsung Device

If I try to run the app on a Samsung smartphone, the following exception occurred:

E/AndroidRuntime: FATAL EXCEPTION: main
    Process: privat.funprogramer.vocabularytrainer, PID: 13776
    android.view.InflateException: Binary XML file line #16 in privat.funprogramer.vocabularytrainer:layout/vocabulary_collections_list_entry: Binary XML file line #16 in privat.funprogramer.vocabularytrainer:layout/vocabulary_collections_list_entry: Error inflating class <unknown>
    Caused by: android.view.InflateException: Binary XML file line #16 in privat.funprogramer.vocabularytrainer:layout/vocabulary_collections_list_entry: Error inflating class <unknown>
    Caused by: java.lang.reflect.InvocationTargetException
        at java.lang.reflect.Constructor.newInstance0(Native Method)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:343)
        at android.view.LayoutInflater.createView(LayoutInflater.java:852)
        at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:1004)
        at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:959)
        at android.view.LayoutInflater.inflate(LayoutInflater.java:657)
        at android.view.LayoutInflater.inflate(LayoutInflater.java:532)
        at privat.funprogramer.vocabularytrainer.main_activity.CollectionsAdapter.onCreateViewHolder(CollectionsAdapter.java:105)
        at privat.funprogramer.vocabularytrainer.main_activity.CollectionsAdapter.onCreateViewHolder(CollectionsAdapter.java:25)
        at androidx.recyclerview.widget.RecyclerView$Adapter.createViewHolder(RecyclerView.java:7078)
        at androidx.recyclerview.widget.RecyclerView$Recycler.tryGetViewHolderForPositionByDeadline(RecyclerView.java:6235)
        at androidx.recyclerview.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:6118)
        at androidx.recyclerview.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:6114)
        at androidx.recyclerview.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:2303)
        at androidx.recyclerview.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1627)
        at androidx.recyclerview.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1587)
        at androidx.recyclerview.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:665)
        at androidx.recyclerview.widget.RecyclerView.dispatchLayoutStep2(RecyclerView.java:4134)
        at androidx.recyclerview.widget.RecyclerView.dispatchLayout(RecyclerView.java:3851)
        at androidx.recyclerview.widget.RecyclerView.onLayout(RecyclerView.java:4404)
        at android.view.View.layout(View.java:24475)
        at android.view.ViewGroup.layout(ViewGroup.java:7383)
        at androidx.swiperefreshlayout.widget.SwipeRefreshLayout.onLayout(SwipeRefreshLayout.java:689)
        at android.view.View.layout(View.java:24475)
        at android.view.ViewGroup.layout(ViewGroup.java:7383)
        at androidx.constraintlayout.widget.ConstraintLayout.onLayout(ConstraintLayout.java:1873)
        at android.view.View.layout(View.java:24475)
        at android.view.ViewGroup.layout(ViewGroup.java:7383)
        at android.widget.FrameLayout.layoutChildren(FrameLayout.java:332)
        at android.widget.FrameLayout.onLayout(FrameLayout.java:270)
        at android.view.View.layout(View.java:24475)
        at android.view.ViewGroup.layout(ViewGroup.java:7383)
        at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1829)
        at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1673)
        at android.widget.LinearLayout.onLayout(LinearLayout.java:1582)
        at android.view.View.layout(View.java:24475)
        at android.view.ViewGroup.layout(ViewGroup.java:7383)
        at android.widget.FrameLayout.layoutChildren(FrameLayout.java:332)
        at android.widget.FrameLayout.onLayout(FrameLayout.java:270)
        at android.view.View.layout(View.java:24475)
        at android.view.ViewGroup.layout(ViewGroup.java:7383)
        at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1829)
        at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1673)
        at android.widget.LinearLayout.onLayout(LinearLayout.java:1582)
        at android.view.View.layout(View.java:24475)
        at android.view.ViewGroup.layout(ViewGroup.java:7383)
        at android.widget.FrameLayout.layoutChildren(FrameLayout.java:332)
E/AndroidRuntime:     at android.widget.FrameLayout.onLayout(FrameLayout.java:270)
        at com.android.internal.policy.DecorView.onLayout(DecorView.java:1227)
        at android.view.View.layout(View.java:24475)
        at android.view.ViewGroup.layout(ViewGroup.java:7383)
        at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:4260)
        at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:3695)
        at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:2618)
        at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:9971)
        at android.view.Choreographer$CallbackRecord.run(Choreographer.java:1010)
        at android.view.Choreographer.doCallbacks(Choreographer.java:809)
        at android.view.Choreographer.doFrame(Choreographer.java:744)
        at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:995)
        at android.os.Handler.handleCallback(Handler.java:938)
        at android.os.Handler.dispatchMessage(Handler.java:99)
        at android.os.Looper.loop(Looper.java:246)
        at android.app.ActivityThread.main(ActivityThread.java:8653)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:602)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1130)
     Caused by: android.content.res.Resources$NotFoundException: Drawable privat.funprogramer.vocabularytrainer:drawable/item_background with resource ID #0x7f07009c
     Caused by: android.content.res.Resources$NotFoundException: File res/drawable/item_background.xml from drawable resource ID #0x7f07009c
        at android.content.res.ResourcesImpl.loadDrawableForCookie(ResourcesImpl.java:1110)
        at android.content.res.ResourcesImpl.loadDrawable(ResourcesImpl.java:729)
        at android.content.res.Resources.loadDrawable(Resources.java:1096)
        at android.content.res.TypedArray.getDrawableForDensity(TypedArray.java:1006)
        at android.content.res.TypedArray.getDrawable(TypedArray.java:981)
        at android.view.View.<init>(View.java:5954)
        at android.view.ViewGroup.<init>(ViewGroup.java:715)
        at android.view.ViewGroup.<init>(ViewGroup.java:711)
        at android.view.ViewGroup.<init>(ViewGroup.java:707)
        at androidx.constraintlayout.widget.ConstraintLayout.<init>(ConstraintLayout.java:587)
        at java.lang.reflect.Constructor.newInstance0(Native Method)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:343)
        at android.view.LayoutInflater.createView(LayoutInflater.java:852)
        at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:1004)
        at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:959)
        at android.view.LayoutInflater.inflate(LayoutInflater.java:657)
        at android.view.LayoutInflater.inflate(LayoutInflater.java:532)
        at privat.funprogramer.vocabularytrainer.main_activity.CollectionsAdapter.onCreateViewHolder(CollectionsAdapter.java:105)
        at privat.funprogramer.vocabularytrainer.main_activity.CollectionsAdapter.onCreateViewHolder(CollectionsAdapter.java:25)
        at androidx.recyclerview.widget.RecyclerView$Adapter.createViewHolder(RecyclerView.java:7078)
        at androidx.recyclerview.widget.RecyclerView$Recycler.tryGetViewHolderForPositionByDeadline(RecyclerView.java:6235)
        at androidx.recyclerview.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:6118)
        at androidx.recyclerview.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:6114)
        at androidx.recyclerview.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:2303)
        at androidx.recyclerview.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1627)
        at androidx.recyclerview.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1587)
        at androidx.recyclerview.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:665)
        at androidx.recyclerview.widget.RecyclerView.dispatchLayoutStep2(RecyclerView.java:4134)
        at androidx.recyclerview.widget.RecyclerView.dispatchLayout(RecyclerView.java:3851)
        at androidx.recyclerview.widget.RecyclerView.onLayout(RecyclerView.java:4404)
        at android.view.View.layout(View.java:24475)
E/AndroidRuntime:     at android.view.ViewGroup.layout(ViewGroup.java:7383)
        at androidx.swiperefreshlayout.widget.SwipeRefreshLayout.onLayout(SwipeRefreshLayout.java:689)
        at android.view.View.layout(View.java:24475)
        at android.view.ViewGroup.layout(ViewGroup.java:7383)
        at androidx.constraintlayout.widget.ConstraintLayout.onLayout(ConstraintLayout.java:1873)
        at android.view.View.layout(View.java:24475)
        at android.view.ViewGroup.layout(ViewGroup.java:7383)
        at android.widget.FrameLayout.layoutChildren(FrameLayout.java:332)
        at android.widget.FrameLayout.onLayout(FrameLayout.java:270)
        at android.view.View.layout(View.java:24475)
        at android.view.ViewGroup.layout(ViewGroup.java:7383)
        at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1829)
        at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1673)
        at android.widget.LinearLayout.onLayout(LinearLayout.java:1582)
        at android.view.View.layout(View.java:24475)
        at android.view.ViewGroup.layout(ViewGroup.java:7383)
        at android.widget.FrameLayout.layoutChildren(FrameLayout.java:332)
        at android.widget.FrameLayout.onLayout(FrameLayout.java:270)
        at android.view.View.layout(View.java:24475)
        at android.view.ViewGroup.layout(ViewGroup.java:7383)
        at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1829)
        at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1673)
        at android.widget.LinearLayout.onLayout(LinearLayout.java:1582)
        at android.view.View.layout(View.java:24475)
        at android.view.ViewGroup.layout(ViewGroup.java:7383)
        at android.widget.FrameLayout.layoutChildren(FrameLayout.java:332)
        at android.widget.FrameLayout.onLayout(FrameLayout.java:270)
        at com.android.internal.policy.DecorView.onLayout(DecorView.java:1227)
        at android.view.View.layout(View.java:24475)
        at android.view.ViewGroup.layout(ViewGroup.java:7383)
        at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:4260)
        at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:3695)
        at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:2618)
        at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:9971)
        at android.view.Choreographer$CallbackRecord.run(Choreographer.java:1010)
        at android.view.Choreographer.doCallbacks(Choreographer.java:809)
        at android.view.Choreographer.doFrame(Choreographer.java:744)
        at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:995)
        at android.os.Handler.handleCallback(Handler.java:938)
        at android.os.Handler.dispatchMessage(Handler.java:99)
        at android.os.Looper.loop(Looper.java:246)
        at android.app.ActivityThread.main(ActivityThread.java:8653)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:602)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1130)
     Caused by: java.lang.UnsupportedOperationException: Can't convert to ComplexColor: type=0x1
        at android.content.res.ResourcesImpl.loadComplexColorForCookie(ResourcesImpl.java:1371)
        at android.content.res.ResourcesImpl.loadComplexColorFromName(ResourcesImpl.java:1247)
        at android.content.res.ResourcesImpl.loadColorStateList(ResourcesImpl.java:1326)
        at android.content.res.Resources.loadColorStateList(Resources.java:1249)
        at android.content.res.TypedArray.getColorStateList(TypedArray.java:600)
        at android.graphics.drawable.RippleDrawable.updateStateFromTypedArray(RippleDrawable.java:497)
        at android.graphics.drawable.RippleDrawable.inflate(RippleDrawable.java:445)
        at android.graphics.drawable.DrawableInflater.inflateFromXmlForDensity(DrawableInflater.java:148)
        at android.graphics.drawable.Drawable.createFromXmlInnerForDensity(Drawable.java:1429)
        at android.graphics.drawable.Drawable.createFromXmlInner(Drawable.java:1418)
        at android.graphics.drawable.LayerDrawable.inflateLayers(LayerDrawable.java:284)
        at android.graphics.drawable.LayerDrawable.inflate(LayerDrawable.java:199)
        at android.graphics.drawable.DrawableInflater.inflateFromXmlForDensity(DrawableInflater.java:148)
E/AndroidRuntime:     at android.graphics.drawable.Drawable.createFromXmlInnerForDensity(Drawable.java:1429)
        at android.graphics.drawable.Drawable.createFromXmlForDensity(Drawable.java:1388)
        at android.content.res.ResourcesImpl.loadXmlDrawable(ResourcesImpl.java:1173)
        at android.content.res.ResourcesImpl.loadDrawableForCookie(ResourcesImpl.java:1070)
        	... 75 more

Add function to mark vocabularies

Ignore trailing or leading spaces

Trainer activity: Focus answer text field automatically

If the user clicks on "Next" in the trainer activity the app should focus the text field for the answer and show the keyboard automatically.

Mix vocabularies and language directions

Improve Ressource Strings

Translate strings to German and maybe short some strings.

Gui to create own vocabulary collections

Bad looking of correct answer and wrong answer alert

In dark mode the correct answer and the wrong answer alerts look bad, because they are to light. Maybe why can also add a little icon to make the alert fancier in general.

IOS support (rewrite in Flutter)

I will add IOS support, using a rewrite of the app in Flutter.

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