Java Question Problem in Android Studio to Wrap libraries

Salar82 · Jul 20, 2020

Hi All.
In this tutorial https://www.b4x.com/android/forum/threads/create-a-wrapper-library-with-android-studio.82831/ , I became somewhat familiar with how to create a library with Android Studio and did all the steps. But I have the following problems:

1) In build.gradle, the following two lines encounter an error:

B4X:

enforceUniquePackageName = false
android.packageBuildConfig = false

error:

Could not set unknown property 'enforceUniquePackageName' for extension 'android' of type com.android.build.gradle.LibraryExtension.

By deleting these two lines, the library will be well compiled But after run project, I face another problem:
2) The xml file is created without an extension.

3) I write the extension for xml file and pass it to the Additional library.
In B4A, I run the project, but I also encounter a new error when compiling:

B4X:

B4A Version: 10.0
Java Version: 8
Parsing code.    (0.00s)
Building folders structure.    (0.12s)
Compiling code.    (0.03s)
Compiling layouts code.    (0.06s)
Organizing libraries.    (0.00s)
    (AndroidX SDK)
Generating R file.    (7.87s)
Compiling debugger engine code.    (0.04s)
Compiling generated Java code.    Error
javac 1.8.0_74
error: error reading E:\B4A\AdditionalLibrary\imagesliderlibrary.jar; error in opening zip file
1 error

If I could not speak English well, I'm sorry because my English is not good.?
I hope the problems will be solved with your guidance

Salar82 · Jul 21, 2020

I noticed an interesting problem:
File ImageSliderlibrary.jar in Build folder is empty:

And build.gradle

Java:

apply plugin: 'com.android.library'

android {
//    repositories {
//        // The order in which you list these repositories matter.
//        google()
//        jcenter()
//    }
    compileSdkVersion 29
    buildToolsVersion "29.0.3"
//    enforceUniquePackageName = false
//    android.packageBuildConfig = false



    defaultConfig {
        minSdkVersion 15
        targetSdkVersion 29
        versionCode 1
        versionName "1.0"

        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
        consumerProguardFiles "consumer-rules.pro"
    }

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }

    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_7
        targetCompatibility JavaVersion.VERSION_1_7
    }

    task copyB4AFiles(type: Copy, dependsOn: "assembleRelease") {
        from 'src/ImageSliderLibrary.jar'
        from 'build/outputs/aar/ImageSliderLibrary-release.aar'
        into 'build/B4Alibs'
        rename { String fileName ->
            fileName.replace('-release', '')
        }
    }
}


dependencies {
    implementation fileTree(dir: "libs", include: ["*.jar"])
//    implementation files('libs/core.jar')
    implementation 'androidx.appcompat:appcompat:1.1.0'
    implementation project(path: ':ImageSlider-jar')
    implementation project(path: ':B4AShared')
    implementation project(path: ':Core')
    implementation project(path: ':glide-3.6.0')
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'androidx.test.ext:junit:1.1.1'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'

}

Salar82 · Jul 29, 2020

Why is the file .jar empty?
Is there a reason I do not know?
I still having this problem?

Salar82 · Jul 30, 2020

Can I use SLC in Android Studio?
if true, how?

Erel · Jul 31, 2020

You can use any editor that you like. Just make sure that the project structure is as explained in the SLC tutorial.

Salar82 · Jul 31, 2020

now I can fix all problems:

Salar82 said:
1) In build.gradle, the following two lines encounter an error:

I delete these lines And fix error

Salar82 said:
2) The xml file is created without an extension.

rebuild configuration

Salar82 said:
3) I write the extension for xml file and pass it to the Additional library.
In B4A, I run the project, but I also encounter a new error when compiling:

The problem was that I renamed a file .txt to .jar.
I need to rename a file .zip

Salar82 said:
File ImageSliderlibrary.jar in Build folder is empty:

According to @corwin42 , it should be like this.

I Created library with SLC And Android Studio; But In both cases, I get the following error when running Wrapped Library on B4A:

B4X:

** Activity (main) Create, isFirst = true **
java.lang.NoClassDefFoundError: Failed resolution of: Landroidx/core/view/AccessibilityDelegateCompat;
    at com.smarteist.autoimageslider.SliderView.setupSlideView(SliderView.java:187)
    at com.smarteist.autoimageslider.SliderView.<init>(SliderView.java:80)
    at ir.imageslider.ash.ShImageSlider.Initialize(ShImageSlider.java:25)
    at b4a.example.main._activity_create(main.java:388)
    at java.lang.reflect.Method.invoke(Native Method)
    at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:732)
    at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:348)
    at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:255)
    at java.lang.reflect.Method.invoke(Native Method)
    at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:144)
    at b4a.example.main.afterFirstLayout(main.java:105)
    at b4a.example.main.access$000(main.java:17)
    at b4a.example.main$WaitForLayout.run(main.java:83)
    at android.os.Handler.handleCallback(Handler.java:751)
    at android.os.Handler.dispatchMessage(Handler.java:95)
    at android.os.Looper.loop(Looper.java:154)
    at android.app.ActivityThread.main(ActivityThread.java:6119)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776)
Caused by: java.lang.ClassNotFoundException: Didn't find class "androidx.core.view.AccessibilityDelegateCompat" on path: DexPathList[[zip file "/data/app/b4a.example-2/base.apk"],nativeLibraryDirectories=[/data/app/b4a.example-2/lib/x86, /system/lib, /vendor/lib]]
    at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:380)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
    ... 20 more
** Activity (main) Resume **

this is SliderViewWrapper Class:

B4X:

package ir.imageslider.ash;

import android.view.ViewGroup;
import com.smarteist.autoimageslider.SliderView;
import anywheresoftware.b4a.BA;
import anywheresoftware.b4a.BA.*;
import anywheresoftware.b4a.BALayout;
import anywheresoftware.b4a.keywords.Common.DesignerCustomView;
import anywheresoftware.b4a.objects.LabelWrapper;
import anywheresoftware.b4a.objects.PanelWrapper;
import anywheresoftware.b4a.objects.ViewWrapper;

@ShortName("ShImageSlider")
@Version(1.0f)
@Author("A.Sh")
@DependsOn(values = {"autoimageslider-1.3.9.aar", "glide-3.6.0.jar", "ShImageSlider.aar"})
public class ShImageSlider extends ViewWrapper<SliderView> implements DesignerCustomView {
    private BA ba;
    private SliderView sv;

    public void Initialize(BA ba, String EventName) {
        _initialize(ba, null, EventName);
        sv = new SliderView(ba.context);
    }

    @Hide
    public void _initialize(BA ba, Object activityClass, String EventName) {
        this.ba = ba;
    }

    public void DesignerCreateView(PanelWrapper base, LabelWrapper lw, anywheresoftware.b4a.objects.collections.Map props) {
        ViewGroup vg = (ViewGroup) base.getObject().getParent();
        AddToParent(vg, base.getLeft(), base.getTop(), base.getWidth(), base.getHeight());
        sv = new SliderView(ba.context);
        base.RemoveView();
    }

    @Hide
    public void AddToParent(ViewGroup Parent, @Pixel int left, @Pixel int top, @Pixel int width, @Pixel int height) {
        Parent.addView(sv, new BALayout.LayoutParams(left, top, width, height));
    }

    public void setLeft(int left) {
        BALayout.LayoutParams lp = (BALayout.LayoutParams) sv.getLayoutParams();
        lp.left = left;
        sv.getParent().requestLayout();
    }

    public int getLeft() {
        BALayout.LayoutParams lp = (BALayout.LayoutParams) sv.getLayoutParams();
        return lp.left;
    }

    public void setTop(int top) {
        BALayout.LayoutParams lp = (BALayout.LayoutParams) sv.getLayoutParams();
        lp.top = top;
        sv.getParent().requestLayout();
    }

    public int getTop() {
        BALayout.LayoutParams lp = (BALayout.LayoutParams) sv.getLayoutParams();
        return lp.top;
    }

    public void setWidth(int Width) {
        BALayout.LayoutParams lp = (BALayout.LayoutParams) sv.getLayoutParams();
        lp.width = Width;
        sv.getParent().requestLayout();
    }

    public int getWidth() {
        BALayout.LayoutParams lp = (BALayout.LayoutParams) sv.getLayoutParams();
        return lp.width;
    }

    public void setHeight(int height) {
        BALayout.LayoutParams lp = (BALayout.LayoutParams) sv.getLayoutParams();
        lp.height = height;
        sv.getParent().requestLayout();
    }

    public int getHeight() {
        BALayout.LayoutParams lp = (BALayout.LayoutParams) sv.getLayoutParams();
        return lp.height;
    }
}

And SliderView Class:

B4X:

public class SliderView extends FrameLayout implements Runnable, OnTouchListener, DataSetListener, OnPageChangeListener {


    public SliderView(Context context) {
        super(context);
        this.setupSlideView(context);
    }

    public SliderView(Context context, AttributeSet attrs) {
        super(context, attrs);
        this.setupSlideView(context);
        this.setUpAttributes(context, attrs);
    }

    public SliderView(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        this.setupSlideView(context);
        this.setUpAttributes(context, attrs);
    }

Salar82 · Aug 1, 2020

I must also say that I have this problem with all the libraries I have built with ViewWrapper.

Java Question Problem in Android Studio to Wrap libraries

Salar82

Member

Salar82

Member

Salar82

Member

Salar82

Member

Erel

B4X founder

Salar82

Member

Salar82

Member

Similar Threads

Java Question Problem in Android Studio to Wrap libraries

Salar82

Member

Salar82

Member

Salar82

Member

Salar82

Member

Erel

B4X founder

Salar82

Member

Salar82

Member

Similar Threads

Privacy & Transparency

Privacy & Transparency