Button and onClickListner help needed

la3bna · by **la3bna** » Fri Apr 01, 2011 8:23 am

Hi

So I want a button to show the next layout and Im looking through the resource on Android.com but there is something wrong.

Might be me but anyways.

Here is the code

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package com.markel.NSF;
 
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
 
 
public class MerkerActivity extends Activity  {
 
        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.alder);
        } 
                // Button for bever merker 
                Button bever = (Button)findViewById(R.id.bever);
                button.setOnClickListener(R.id.bever);
                
               
            // Implement the OnClickListener callback
            public void onClick(View v) {
                setContentView(R.layout.bmerk1);
            }
         
        
}
 
Parsed in 0.011 seconds,  using GeSHi 1.0.8.4

No matter what I do I cant seem to get the button.setOnClickListner to work. I have tried using this as token.

I would like some help to sort this out..

vhalexxs · by **vhalexxs** » Fri Apr 01, 2011 8:28 am

Hi la3bna,

You must implement View.OnClickListener then change the line button.setOnClickListener(R.id.bever) to button.setOnClickListener(this);

Best,

la3bna · by **la3bna** » Fri Apr 01, 2011 10:17 am

Ok I still get the same error.

Syntax error on token, misplaced construct
syntax error on token (this), delete token.

This is what Eclips tells me, even after code update.

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public class MerkerActivity extends Activity implements  OnClickListener {
 
        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.alder);
        } 
                // Button for bever merker 
                Button bever = (Button)findViewById(R.id.bever);
                button.setOnClickListener(this);
                
               
            // Implement the OnClickListener callback
            public void onClick(View v) {
                setContentView(R.layout.bmerk1);
            }
         
        
}
 
Parsed in 0.001 seconds,  using GeSHi 1.0.8.4

la3bna · by **la3bna** » Fri Apr 01, 2011 10:57 am

Do I need to separate my button function and layout view in two files?

Is it any help that the buttons are image buttons? Is that different?

la3bna · by **la3bna** » Mon Apr 04, 2011 10:35 am

Still nothing.
I have searched a lot (thanks you Google

)
This is my best yet (but still noting..)

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package com.markel.NSF;
 
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
 
public class Merker extends Activity
{
  public void onCreate(Bundle icicle)
   {
      super.onCreate(icicle);
      setContentView(R.layout.alder);
      Button bever = (Button) findViewById(R.id.bever);
      bever.setOnClickListener(new View.OnClickListener() {
         public void onClick(View v) {
         Intent i = new Intent(Merker.this, Bmerk1Activity.class);
         startActivity(i);
         }
      });
   }
}
 
Parsed in 0.001 seconds,  using GeSHi 1.0.8.4

davelis828 · by **davelis828** » Mon Apr 04, 2011 7:32 pm

Syntax: [ Download ] [ Hide ]

Using java Syntax Highlighting

package com.markel.NSF;
 
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
 
public class Merker extends Activity implements OnClickListener
{
  public void onCreate(Bundle icicle)
   {
      super.onCreate(icicle);
      setContentView(R.layout.alder);
      Button bever = (Button) findViewById(R.id.bever);
      bever.setOnClickListener(new View.OnClickListener(this)
   }
   public void onClick(View v){
      if (v==bever){ //your code here}}
 
}
 
Parsed in 0.009 seconds, using GeSHi 1.0.8.4
Parsed in 0.014 seconds,  using GeSHi 1.0.8.4

la3bna · by **la3bna** » Tue Apr 05, 2011 6:01 am

Maybe I should mention that this app uses Tab view ?

I found a site that shows nested activity. Thinking I should try that.http://blog.henriklarsentoft.com/2010/07/android-tabactivity-nested-activities/

Button and onClickListner help needed

Button and onClickListner help needed

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