How can i create block where developer can input a image from assets?

Mohamed_Tamer · November 30, 2020, 7:48am

The extension writes the image to the external storage, and returns the path to the file written in the filePath parameter.

AryanGupta · November 30, 2020, 8:02am

sur @mohamed_tamer
i just send you a PM

Salman_Dev · November 30, 2020, 8:09am

can i join

AryanGupta · November 30, 2020, 8:10am

sorry, bru
he is offline.
i will tell him to join you

Salman_Dev · November 30, 2020, 10:08am

i get an error when trying the code from @Mohamed_Tamer

 @SimpleFunction
    public void pick(AndroidViewComponent layout, String imagePath) {
      InputStream in;
       try{
           in = container.$form().openAssetForExtension(imagePath);
       } finally {
          in.close();
       }
      Bitmap bmp = BitmapFactory.decodeStream(in);
      
      View view = layout.getView();
      view.setImageBitmap(bmp); 
    }

Error :

AndroidRuntime:
    [javac] Compiling 332 source files to /projects/goldv2/appinventor-sources/appinventor/components/build/classes/AndroidRuntime
    [javac] warning: [options] bootstrap class path not set in conjunction with -source 1.7
    [javac] /projects/goldv2/appinventor-sources/appinventor/components/src/com/appybuilder/salmanappinventor/Tester/Tester.java:43: error: cannot find symbol
    [javac]            in = container.$form().openAssetForExtension(imagePath);
    [javac]                                  ^
    [javac]   symbol:   method openAssetForExtension(String)
    [javac]   location: class Form
    [javac] /projects/goldv2/appinventor-sources/appinventor/components/src/com/appybuilder/salmanappinventor/Tester/Tester.java:50: error: cannot find symbol
    [javac]       view.setImageBitmap(bmp); 
    [javac]           ^
    [javac]   symbol:   method setImageBitmap(Bitmap)
    [javac]   location: variable view of type View
    [javac] Note: Some input files use or override a deprecated API.
    [javac] Note: Recompile with -Xlint:deprecation for details.
    [javac] Note: Some input files use unchecked or unsafe operations.
    [javac] Note: Recompile with -Xlint:unchecked for details.
    [javac] 2 errors
    [javac] 1 warning

AryanGupta · November 30, 2020, 10:09am

you missing a import - import android.view.View;

Salman_Dev · November 30, 2020, 10:10am

I’ve added it

import android.content.Context;
import android.util.Log;
import android.view.View;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import com.google.appinventor.components.annotations.;
import com.google.appinventor.components.runtime.;
import com.google.appinventor.components.annotations.DesignerComponent;
import com.google.appinventor.components.annotations.SimpleObject;
import com.google.appinventor.components.annotations.SimpleFunction;
import com.google.appinventor.components.annotations.SimpleEvent;
import com.google.appinventor.components.annotations.SimpleProperty;
import com.google.appinventor.components.common.ComponentCategory;
import com.google.appinventor.components.runtime.AndroidNonvisibleComponent;
import com.google.appinventor.components.runtime.AndroidViewComponent;
import com.google.appinventor.components.runtime.ComponentContainer;
import com.google.appinventor.components.runtime.EventDispatcher;
import java.io.InputStream;

AryanGupta · November 30, 2020, 10:12am

can i have your full code

AryanGupta · November 30, 2020, 10:15am

i think you import it wrongly

AryanGupta · November 30, 2020, 10:17am

import com.google.appinventor.components.annotations.;
import com.google.appinventor.components.runtime.;

instead of this. Use this code.

import com.google.appinventor.components.annotations.*;
import com.google.appinventor.components.runtime.*;

Salman_Dev · November 30, 2020, 11:57am

still not work

AryanGupta · November 30, 2020, 12:09pm

. …

Salman_Dev · November 30, 2020, 12:46pm

import android.content.Context;
import android.util.Log;
import android.view.View;
import android.widget.ImageView;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import com.google.appinventor.components.annotations.*;
import com.google.appinventor.components.runtime.*;
import com.google.appinventor.components.annotations.DesignerComponent;
import com.google.appinventor.components.annotations.SimpleObject;
import com.google.appinventor.components.annotations.SimpleFunction;
import com.google.appinventor.components.annotations.SimpleEvent;
import com.google.appinventor.components.annotations.SimpleProperty;
import com.google.appinventor.components.common.ComponentCategory;
import com.google.appinventor.components.runtime.AndroidNonvisibleComponent;
import com.google.appinventor.components.runtime.AndroidViewComponent;
import com.google.appinventor.components.runtime.ComponentContainer;
import com.google.appinventor.components.runtime.EventDispatcher;
import com.google.appinventor.components.runtime.Form;
import java.io.InputStream;

@DesignerComponent(version = 1,  description = "This Extension was created with the AppyBuilder Code Editor.<br>" + 
                   "Create your own here:<br><a href='https://editor.appybuilder.com' target='_blank'>https://editor.appybuilder.com</a><br>",
        category = ComponentCategory.EXTENSION,
        nonVisible = true,   iconName = "http://appyBuilder.com/extensions/icons/extension.png")
@SimpleObject(external = true)
public class Tester extends AndroidNonvisibleComponent {
    private ComponentContainer container;
    /**
     * @param container container, component will be placed in
     */
    public Tester(ComponentContainer container) {
        super(container.$form());
        this.container = container;
    }
  
   @SimpleFunction(description = "")
    public void pick(AndroidViewComponent layout, String imagePath) {
      InputStream in;
       try{
           in = container.$form().openAssetForExtension(imagePath);
       } finally {
          in.close();
       }
      Bitmap bmp = BitmapFactory.decodeStream(in);
      
      View view = layout.getView();
      view.setImageBitmap(bmp); 
    }

}

Srrazmi · November 30, 2020, 1:30pm

Have You Tried Thisone

@SimpleFunction(description = "")
public void pick(AndroidViewComponent layout, String imagePath) {
try {
    InputStream ims = getAssets().open(imagePath);

    Drawable d = Drawable.createFromStream(ims, null);
View view = layout.getView();
 view.setImageDrawable(d);
}
catch(IOException ex) {
   ///Some Code
}

Salman_Dev · November 30, 2020, 1:32pm

Oky thank you i will try

Srrazmi · November 30, 2020, 3:15pm

As I Know You Can’t Set Any Source To View Without Decoding InputStream So We Need To Import Stream Reader And Decode It Using This And StreamReader Needs BufferReader So We Need To Read Stream Insite BuffereReader After If All Done So We Got File Source To Set in View

Salman_Dev · November 30, 2020, 3:36pm

So, what should I do? what should i import? and what code I can use?
Mr.@Srrazmi

Srrazmi · November 30, 2020, 3:41pm

The Better Way Is Try With Custom Source Url

AryanGupta · November 30, 2020, 3:44pm

InputStream in;
try{
in = container.$form().openAssetForExtension(this, "myAssetName");
} finally {
in.close();
}

Bitmap bmp = BitmapFactory.decodeStream(in);

AryanGupta · November 30, 2020, 3:45pm

what’s the problem with this code ??