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Android

Posted by Alex Hexan
Alex Hexan
Courses Plus Student 769 Points

Anything that has to do with ActionBar and Tabs is deprecated. Why? and how would i fix this. Android Studio.

The app doesn't run anymore it crashes instantly. I am guessing that the deprecated stuff that has appeared everywhere has something to do with it? Am I right? How do i fix this? NAVIGATION_MODE_TABS, setNavigationMode, setSelectedNavigationItem, .addTab, .newTab,

This is some of it:

'''java 

    final ActionBar actionBar = getSupportActionBar();
    actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);


    mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager());


    mViewPager = (ViewPager) findViewById(R.id.pager);
    mViewPager.setAdapter(mSectionsPagerAdapter);


    mViewPager.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
        @Override
        public void onPageSelected(int position) {
            actionBar.setSelectedNavigationItem(position);
        }
    });


    for (int i = 0; i < mSectionsPagerAdapter.getCount(); i++) {

        actionBar.addTab(
                actionBar.newTab()
                        .setText(mSectionsPagerAdapter.getPageTitle(i))
                        .setTabListener(this));
    }'''

Ive got this line in the beggining of the Activity:

'''java

public class MainActivity extends ActionBarActivity implements ActionBar.TabListener { '''

ActionBarActivity, .TabListener

James Simshaw
James Simshaw
28,738 Points

Hello,

There have been a lot of API level changes in Android lately. Could you post your code so that we can give you specific help for your issues?

2 Answers

Alex Hexan
PLUS
Alex Hexan
Courses Plus Student 769 Points
Alex Hexan
Alex Hexan
Courses Plus Student 769 Points

Sorry if this is extremely messy. Getting to know this site.

James Simshaw
James Simshaw
28,738 Points
James Simshaw
James Simshaw
28,738 Points

Hello,

I think I'm understanding which of the deprecations you are running into. One post here on Treehouse where another forum user goes over their fix for the problem can be found here. I have not tried it out personally so I cannot say how well it works, but it looks like you cannot actually click the tabs to navigate. Another option(again, I haven't tried it) that says it preserves clickable tabs is to use the library PagerSlidingTabStrip available on Github. More info on that can be found here on stackoverflow. Let me know if that helps and if you need more assistance.

Alex Hexan
Alex Hexan
Courses Plus Student 769 Points

Well thank you for the fix but I think i found the problem. The loading icon method that Ben added in his Ribbit app doesn´t seem to be supported by Lollipop thus making the app crash just by trying to get it. Could that be right?

James Simshaw
James Simshaw
28,738 Points

Its possible if a method has been removed from the API(which deprecated calls are after a while), that calling that method on a device/emulator could cause it to crash.