Hi,

I am a beginner to Android. I am just seeking help on Basic android examples.
I have tried the RadioButtons Tutorial which was posted by Plusminus.

When i tried to run the exercise i get the error in showAlert()

When i checked , the number of arguments which he has given in the showAlert(string,string,string,boolean) was only four. Where as it expected 5 arguments (string,int, string,string,boolean).

and i passed '0' as a argument in place of int. But the thrid expression in plusminus radio button code is not evaluating properly. and gives me error.

Can anyone guide me please.

-Jo

Hi,

I am a beginner to Android. I am just seeking help on Basic android examples.
I have tried the RadioButtons Tutorial which was posted by Plusminus.

When i tried to run the exercise i get the error in showAlert()

When i checked , the number of arguments which he has given in the showAlert(string,string,string,boolean) was only four. Where as it expected 5 arguments (string,int, string,string,boolean).

and i passed '0' as a argument in place of int. But the thrid expression in plusminus radio button code is not evaluating properly. and gives me error.

Can anyone guide me please.

-Jo

This tutorial is based on M3 version of the SDK.
Currently we are at M5, which uses the Toast class for showing messages on the screen.

Example

showAlert( "Result",
(Exercise1.choice == Exercise1.ans) ? "Yes, you are right"
: "No, your answer is worgn ", "Close", true

You are using the wrong syntax. showAlert should be something like: showAlert(String, int, string, string, boolean);

The int being a icon resource id or 0 for no icon.

hi,

image of the tuto is not anymore visible. any possibility to fix it?

Thanks to all of you who contributed to this thread. I survived theday thanks to it.

Keep up the good work guys!

Hello plusminus and everyone,

Myself is Dhr.
i m new in this Android World.

I made one application. The application is basically based on browsing a text file from eclipse.

In that I create a page which contains one button.
the user press this button and then after the text file which is in the eclipse is open and the user can read that file.

Here is my code:
browse.java

Code: Select all

package abc.browsing_file;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

public class browse extends Activity {
    private static final Object Button01 = null;

   /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
       
        Button button = (Button)findViewById(R.id.Button01);
        button.getId();
        TextView helloTxt = (TextView)findViewById(R.id.hellotxt);
        helloTxt.setText(readText());
    }
   
    public void myClickHandler(View v)
    {
       if(v.equals(((View) Button01).getId()))
       {
          readText();
       }
    }

   private String readText()
    {
       InputStream inputStream = getResources().openRawResource(R.raw.hello);
       
       ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
       
       int i;
       try{
          i= inputStream.read();
          while (i != -1)
          {
               byteArrayOutputStream.write(i);
                 i = inputStream.read();
          }
          inputStream.close();
       }
       catch(IOException e){
          e.printStackTrace();
       }
       return byteArrayOutputStream.toString();
    }
}


main.xml

Code: Select all

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
<TextView 
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="@string/hello"
    />
<TextView 
   android:id="@+id/hellotxt"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:textSize="22px"
    />
<Button
   android:id="@+id/Button01"
   android:layout_width="wrap_content"
   android:layout_height="wrap_content"
   android:autoLink="phone"
   android:text="Browse" android:onClick="@string/buttonHandler">
   </Button>
</LinearLayout>



strings.xml

Code: Select all

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <string name="hello">Hello World, browse!</string>
    <string name="app_name">browsing_file</string>
<string name="buttonHandler"></string>
</resources>


hello.txt

Code: Select all

hello..
welcome to Android Application.


Can anyone has knoeledge how ti solve it??

Please please .. Help mee..

Thanks/Regards,
Dhr

Hello plusminus and everyone,

Myself is Dhr.
i m new in this Android World.

I made one application. The application is basically based on browsing a text file from eclipse.

In that I create a page which contains one button.
the user press this button and then after the text file which is in the eclipse is open and the user can read that file.

Here is my code:
browse.java

Code: Select all

package abc.browsing_file;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

public class browse extends Activity {
    private static final Object Button01 = null;

   /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
       
        Button button = (Button)findViewById(R.id.Button01);
        button.getId();
        TextView helloTxt = (TextView)findViewById(R.id.hellotxt);
        helloTxt.setText(readText());
    }
   
    public void myClickHandler(View v)
    {
       if(v.equals(((View) Button01).getId()))
       {
          readText();
       }
    }

   private String readText()
    {
       InputStream inputStream = getResources().openRawResource(R.raw.hello);
       
       ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
       
       int i;
       try{
          i= inputStream.read();
          while (i != -1)
          {
               byteArrayOutputStream.write(i);
                 i = inputStream.read();
          }
          inputStream.close();
       }
       catch(IOException e){
          e.printStackTrace();
       }
       return byteArrayOutputStream.toString();
    }
}


main.xml

Code: Select all

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
<TextView 
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="@string/hello"
    />
<TextView 
   android:id="@+id/hellotxt"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:textSize="22px"
    />
<Button
   android:id="@+id/Button01"
   android:layout_width="wrap_content"
   android:layout_height="wrap_content"
   android:autoLink="phone"
   android:text="Browse" android:onClick="@string/buttonHandler">
   </Button>
</LinearLayout>



strings.xml

Code: Select all

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <string name="hello">Hello World, browse!</string>
    <string name="app_name">browsing_file</string>
<string name="buttonHandler"></string>
</resources>


hello.txt

Code: Select all

hello..
welcome to Android Application.


Can anyone has knoeledge how ti solve it??

Please please .. Help mee..

Thanks/Regards,
Dhr