Hi....we can navigate from one screen to another with the help of intent....as u said u created 3 activites u need to call 2nd intent in first activity ,and u need to cal 3rd activity from 2nd activity......from 3rd activity u need to back to previous activiy right der is a method.....i wil give u code just u can follow ...... here iam giving example here u can go to 2nd activity and from 2nd activiy u can come back to 1st activity for this u hav to create 2xml files with buttons dats not big deal to u...just iam giving code ok...
1st activity........................ public class IntentBundle extends Activity implements OnClickListener { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); Intent in2=getIntent();//getIntent()=Return the intent that started this activity String str; str=in2.getStringExtra("name1"); TextView tv=(TextView)findViewById(R.id.txt); tv.setText("Your Name is:"+str); Button btn=(Button)findViewById(R.id.btn); btn.setOnClickListener(this); } @Override public void onClick(View v) { // TODO Auto-generated method stub Intent in=new Intent(getApplicationContext(),Sec.class); /*Bundle b = new Bundle(); b.putString("friendsname", "Rambabu"); in.putExtras(b); */ in.putExtra("name", "100"); startActivity(in); } } ..............................2nd activity public class Sec extends Activity implements OnClickListener { public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.sec); TextView tv=(TextView)findViewById(R.id.txt); tv.setText("From Secound"); Button btn1=(Button)findViewById(R.id.btn1); btn1.setOnClickListener(this); Intent in=getIntent(); String str=in.getStringExtra("name"); int i=Integer.parseInt(str); int r=i+i; tv.setText("Total Of Two Numbers="+Integer.toString(r)); /* Bundle b = in.getExtras(); if(b != null){ String frname = b.getString("friendsname"); tv.setText(frname); } */ } @Override public void onClick(View v) { // TODO Auto-generated method stub Intent in1=new Intent(getApplicationContext(),IntentBundle.class); in1.putExtra("name1", "Rambabu"); startActivity(in1); } } On Tue, Jul 26, 2011 at 4:37 AM, aparna rani <indela....@gmail.com> wrote: > hi to all I am new to android development. in my application i > have three activities. > in 1st ui and second ui each ui having one button for ui calling > 3rd.in 3rd ui having back button.when pressing back button it comes to > previous calling ui. > how can i implement. > > please help me. > > thanks in andvanced > > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to android-developers@googlegroups.com > To unsubscribe from this group, send email to > android-developers+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en