Button on the interface in a pop-up screen to another question

posts by fstao edited 2013-10-19 11:06:16

About adt android development issues:
In the layout I have two interfaces, one is the main interface activity_main.xml and another new interface form1.xml.
I add a new button (id = @ + id / bt_one) in activity_main, want to click bt_one pop-up screen form1.
My practice is in the MainActivity.java src code is as follows:

 
package com.example.my_first; 

import android.os.Bundle; 
import android.app.Activity; 
import android.content.Intent; 
import android.view.Menu; 
import android.view.View; 
import android.widget.Button; 

public class MainActivity extends Activity {

@ Override 
protected void onCreate (Bundle savedInstanceState) {
super.onCreate (savedInstanceState); 
setContentView (R.layout.activity_main); 
Button bt_one = (Button) this.findViewById (R.id.bt_one); 
bt_one.setOnClickListener (new View.OnClickListener () {

@ Override 
public void onClick (View arg0) {
/ / TODO Auto-generated method stub 
Intent intent = new Intent (MainActivity.this, activeform1.class); 
startActivity (intent); 
} 
}); 


} 

@ Override 
public boolean onCreateOptionsMenu (Menu menu) {
/ / Inflate the menu; this adds items to the action bar if it is present 
.getMenuInflater () inflate (R.menu.main, menu);. 
return true; 
} 

Then I added the following in src a class: activeform1.java, code is as follows:

 
package com.example.my_first; 


import android.app.Activity; 
import android.os.Bundle; 


public class activeform1 extends Activity {

@ Override 
protected void onCreate (Bundle savedInstanceState) {
/ / TODO Auto-generated method stub 
super.onCreate (savedInstanceState); 
setContentView (R.layout.form1); 
} 

} 

Compile, run the main interface activity_main.xml, when you click the button on the main interface, not bombs interface form1.xml, error: Unfortunately, my_first has stopped.

Will the code wrong?

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Reply:
activeform1 To Manifest in registration, otherwise it will not find this Activity Report an error.
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cited a floor tantahe reply:

activeform1 To Manifest in registration, otherwise it will not find this Activity Report an error.

How to register, talk
Reply:

reference to the second floor fstao reply:

Quote: references to a floor tantahe reply:

activeform1 To Manifest in registration, otherwise it will not find this Activity Report an error.

How to register, talk

Manifest the following sentence into the application tag

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Upstairs positive solution! Sign up!
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Four components must be registered in the Manifest.xml
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