Getting error in extension building

Salman_Dev · October 2, 2020, 12:05pm

Like This :

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 android.widget.Toast;

//External


@DesignerComponent(version = 1,
    category = ComponentCategory.EXTENSION,
    description = "Made my YOU",
    nonVisible = true,
    iconName = "https://icon-icons.com/icons2/1808/PNG/48/code_115247.png")

@SimpleObject(external = true)

public class ExtensionTemplate extends AndroidNonvisibleComponent {
  
  public ExtensionTemplate(ComponentContainer container) {
  super(container.$form());
  this.container = container;
}

//Write you're code here
   @SimpleFunction(description = "Show toast message")
    public void ShowToastMessage(String value) {
       //YOUR ACTIVITY HERE
      Toast.makeText(container.$context(), value, Toast.LENGTH_SHORT).show();
    }
   

}

WatermelonIce · October 2, 2020, 12:06pm

Correct.

MohamedTamer · October 2, 2020, 12:07pm

You need to define the container variable as i said:

or i don't see it

Salman_Dev · October 2, 2020, 12:07pm

where should I put it

MohamedTamer · October 2, 2020, 12:09pm

Inside your class, under this line

WatermelonIce · October 2, 2020, 12:09pm

Put it above/under the methods...

You should learn java basics first

Salman_Dev · October 2, 2020, 12:10pm

Like This Sir

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 android.widget.Toast;

//External


@DesignerComponent(version = 1,
    category = ComponentCategory.EXTENSION,
    description = "Made my YOU",
    nonVisible = true,
    iconName = "https://icon-icons.com/icons2/1808/PNG/48/code_115247.png")

@SimpleObject(external = true)

public class ExtensionTemplate extends AndroidNonvisibleComponent {
  
  public ExtensionTemplate(ComponentContainer container) {
  private ComponentContainer container;
  super(container.$form());
  this.container = container;
    
}

//Write you're code here
   @SimpleFunction(description = "Show toast message")
    public void ShowToastMessage(String value) {
       //YOUR ACTIVITY HERE
      Toast.makeText(container.$context(), value, Toast.LENGTH_SHORT).show();
    }
   

}

MohamedTamer · October 2, 2020, 12:11pm

Move this before this line, and not under:

Salman_Dev · October 2, 2020, 12:13pm

Like This Sir :

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 android.widget.Toast;

//External


@DesignerComponent(version = 1,
category = ComponentCategory.EXTENSION,
description = "Made my YOU",
nonVisible = true,
iconName = "https://icon-icons.com/icons2/1808/PNG/48/code_115247.png")

@SimpleObject(external = true)

public class ExtensionTemplate extends AndroidNonvisibleComponent {
  
  private ComponentContainer container;
  
  public ExtensionTemplate(ComponentContainer container) {
  super(container.$form());
  this.container = container;

}

//Write you're code here
   @SimpleFunction(description = "Show toast message")
public void ShowToastMessage(String value) {
   //YOUR ACTIVITY HERE
  Toast.makeText(container.$context(), value, Toast.LENGTH_SHORT).show();
}
   

}

WatermelonIce · October 2, 2020, 12:18pm

Yes.

Techno_Vedang · October 2, 2020, 12:19pm

I have both extension templete for compile extension and sources for personal builder

Salman_Dev · October 2, 2020, 12:35pm

Wow this is Like a dream
Thank you very much @MohamedTamer
Thank you very much @WatermelonIce
And thanks for the others who have helped me

Salman_Dev · October 2, 2020, 2:12pm

Sir, I want to ask Can this code be used in all extensions?

  private ComponentContainer container;
  
  public ExtensionTemplate(ComponentContainer container) {
  super(container.$form());
  this.container = container;

MohamedTamer · October 2, 2020, 2:24pm

This code can be used in all extensions, but you just need to change the class name, as per as your project name, or you will get an error.
This one:

Salman_Dev · October 2, 2020, 2:38pm

okay i got it, thanks sir

Kumaraswamy · October 3, 2020, 2:55am

package com.extension.Toast1.xoma;


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;

//External
import android.widget.Toast;
import android.content.Context;

@DesignerComponent(version = 1,
   category = ComponentCategory.EXTENSION,
   description = "Simple show toast",
   nonVisible = true,
   iconName = "https://community.appinventor.mit.edu/user_avatar/community.appinventor.mit.edu/kumaraswamy_b.g/32/13770_2.png")

@SimpleObject(external = true)

public class SimpleToast extends AndroidNonvisibleComponent {

private ComponentContainer container;
private Context context;

public SimpleToast (ComponentContainer container) {
    super(container.$form());
    this.container = container;
}

@SimpleFunction(description = "Show toast")
public void ShowToast(String message) {
    Toast.makeText(container.$context(),message,Toast.LENGTH_SHORT).show();
}
}

This is working for me.