CODEWITHSUNDEEP
androidtabs
just ME
just ME

Reputation: 1827

android tab activity go to previous tab

I have an activity with five tabs. Everything looks okay when I go from tab 1 to tab 2 or tab 3. How can I go back programatically from tab 2 to tab 1?

    Intent myIntent = new Intent(this, Tab1.class);             
    myIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); 
    startActivity(myIntent);

This is not working properly because it starts activity 1 without any tab.

When going from tab 1 to tab 2 I can both see tab 1 and tab 2 (current tab activated). But when going from tab 2 to tab 1, both tab 1 and tab 2 disappear from the activity. What could cause this?

Upvotes: 3

Views: 1375

Answers (4)

John Pang
John Pang

Reputation: 2503

I have a similar situation but seems none of the answers help. so, I post my solution here:

// tab selection history, each tab has a tag which is a string
private List<String> tabIdHistory = new ArrayList<String>();

@Override
protected void onCreate(Bundle savedInstance) {
    super.onCreate(savedInstanceState);
    // this layout contains TabHost and TabWidget
    setContentView(R.layout.activity_main); 

    TabHost tabHost = (TabHost) findViewById(android.R.id.tabhost);
    tabHost.setup();
    tabHost.setOnTabChangedListener(new TabHost.OnTabChangeListener() {

        @Override
        public void onTabChanged(String tabId) {
            tabIdHistory.remove(tabId); // ensure uniqueness
            tabIdHistory.add(tabId);
        }
    });
    // continue your tab initialisation, such as
    // tabHost.addTab(tabHost.newTabSpec(TAG)
    //         .setContent(...).setIndicator(...));
}

@Override
public void onBackPressed() {
    if (tabIdHistory.size() > 1) {
        // pop the current last item, we want the second last
        tabIdHistory.remove(tabIdHistory.size() - 1);
        tabHost.setCurrentTabByTag(tabIdHistory.get(tabIdHistory.size() - 1));
    } else {
        super.onBackPressed();
    }
}

If use select tab#1, tab#3, tab#2, tab#1, then the back stack is "3, 2, 1" and app will exit to main screen if user press back button three times. If you want to keep full history, comment out this line:

tabIdHistory.remove(tabId);

Upvotes: 0

SALMAN
SALMAN

Reputation: 2031

This will surely help you.

TabHost tabHost =  (TabHost) getParent().findViewById(android.R.id.tabhost);
tabHost.setCurrentTab(1);

OR you can refer to this link

How to programmatically switch tabs using buttonclick in Android

Thanks :)

Upvotes: 2

NagarjunaReddy
NagarjunaReddy

Reputation: 8645

just use finish() method

public void onClick(View v) 
{                             
    finish();
    startActivity(new Intent(Activity2.this, Activity1.class));            
}

Upvotes: 1

Cdr. Powell
Cdr. Powell

Reputation: 722

I don't know about the Intent.FLAG_ACTIVITY_CLEAR_TOP, never needed that, but the mentioned effect of loosing your tabs is produced by calling startActivity() from your TabHost, not one of your tabs. If that's the case, move the call there and your tabs should stay.

Upvotes: 0

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