Re: [android-developers] TabLayout - tab doesn't refresh view

2016-01-26 Thread TreKing 
On Wed, Jan 13, 2016 at 5:38 AM, Hugo Teijiz  wrote:

> OnSelectedTab Listener executed correctly, and execute then setCurrentItem
> of viewPager, but onCreateView of Fragment doesn't execute.


By default, ViewPager keeps one off-screen item cached as an optimization
(see
http://developer.android.com/reference/android/support/v4/view/ViewPager.html#setOffscreenPageLimit%28int%29
).

In a set of 3, the middle one will never get destroyed as it's always the
one offscreen relative to the other two. When the pager is using a
FragmentPagerAdapter, as in your case, that means the Fragment is kept
alive, thus it's onCreate and onCreateView methods are not called.

If you are needing to do some kind of refresh when the tab is selected,
move that logic to onStart or onResume.

-
TreKing  - Chicago
transit tracking app for Android-powered devices

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Re: [android-developers] TabLayout - tab doesn't refresh view

2016-01-19 Thread Justin Anderson 
Just for kicks, what happens if you don't create a new fragment every time
you change tabs?  Only create it once, something like this tutorial:
http://www.truiton.com/2015/06/android-tabs-example-fragments-viewpager/

Note, I'm not endorsing that tutorial or anything... I don't see anything
immediately wrong with your code (related to the tabs anyway) but I figured
this tutorial should work, and that is the main difference I see between
your code and this tutorial.

On Tue, Jan 12, 2016 at 9:37 AM Hugo Teijiz  wrote:

> MainActivity:
> @Override
> protected void onCreate(Bundle savedInstanceState) {
> super.onCreate(savedInstanceState);
> setContentView(R.layout.activity_main);
>
>
> getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
> App.setTrxNumber(0);
> App.setContext(MainActivity.this);
>
> if (!isOnline()) {
> Toast.makeText(this, "No se ha Podido Conectar con el
> Servidor", Toast.LENGTH_LONG).show();
> finish();
> }
>
> StrictMode.ThreadPolicy policy = new
> StrictMode.ThreadPolicy.Builder().permitAll().build();
> StrictMode.setThreadPolicy(policy);
>
> if (ContextCompat.checkSelfPermission(this,
> Manifest.permission.READ_PHONE_STATE) == PackageManager.PERMISSION_GRANTED)
> {
> TelephonyManager mngr = (TelephonyManager)
> getSystemService(Context.TELEPHONY_SERVICE);
> imei = mngr.getDeviceId();
> } else {
> ActivityCompat.requestPermissions(this,
> new String[]{Manifest.permission.READ_CONTACTS},
> REQUEST_READ_PHONE_STATE_PERMISSION);
> }
>
> try {
> ContentResolver cr = getContentResolver();
> MostrarSettings(cr, true);
> } catch (Exception e) {
> Toast.makeText(this, e.getMessage(), Toast.LENGTH_LONG).show();
> }
>
> Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
> setSupportActionBar(toolbar);
>
> final TabLayout tabLayout = (TabLayout)
> findViewById(R.id.tab_layout);
> tabLayout.addTab(tabLayout.newTab().setText("PENDIENTES"));
> tabLayout.addTab(tabLayout.newTab().setText("CONFIRM"));
> tabLayout.addTab(tabLayout.newTab().setText("RECHAZADOS"));
> tabLayout.setTabGravity(TabLayout.GRAVITY_FILL);
>
> final ViewPager viewPager = (ViewPager) findViewById(R.id.pager);
> final PagerAdapter adapter = new PagerAdapter
> (getSupportFragmentManager(), tabLayout.getTabCount());
> viewPager.setAdapter(adapter);
> viewPager.addOnPageChangeListener(new
> TabLayout.TabLayoutOnPageChangeListener(tabLayout));
> tabLayout.setOnTabSelectedListener(new
> TabLayout.OnTabSelectedListener() {
> @Override
> public void onTabSelected(TabLayout.Tab tab) {
> viewPager.setCurrentItem(tab.getPosition());
> }
>
> @Override
> public void onTabUnselected(TabLayout.Tab tab) {
>
> }
>
> @Override
> public void onTabReselected(TabLayout.Tab tab) {
> viewPager.setCurrentItem(tab.getPosition());
> }
> });
> }
>
> PagerAdapter.java:
> import android.support.v4.app.Fragment;
> import android.support.v4.app.FragmentManager;
> import android.support.v4.app.FragmentStatePagerAdapter;
>
> /**
>  * Created by Hugo on 08/01/2016.
>  */
> public class PagerAdapter extends FragmentStatePagerAdapter {
> int mNumOfTabs;
>
> public PagerAdapter(FragmentManager fm, int NumOfTabs) {
> super(fm);
> this.mNumOfTabs = NumOfTabs;
> }
>
> @Override
> public Fragment getItem(int position) {
>
> switch (position) {
> case 0:
> PendFragment tab1 = new PendFragment();
> return tab1;
> case 1:
> ConfirmFragment tab2 = new ConfirmFragment();
> return tab2;
> case 2:
> RejectFragment tab3 = new RejectFragment();
> return tab3;
> default:
> return null;
> }
> }
>
> @Override
> public int getCount() {
> return mNumOfTabs;
> }
> }
>
> El martes, 12 de enero de 2016, 12:26:10 (UTC-3), MagouyaWare escribió:
>
>> Code?
>>
>> On Tue, Jan 12, 2016, 9:16 AM Hugo Teijiz  wrote:
>>
> Hello to everyone.
>>>
>>> I develop an Android application with TabLayout. The App has 3 tabs.
>>> When I click over Tab 1 (Index 0) and Tab 3 (Index 2) the view refresh
>>> great, but when I click over Tab 2 (Index 1) nothing happens.
>>>
>>> OnSelectedTab Listener executed correctly, and execute then
>>> setCurrentItem of viewPager, but onCreateView of Fragment doesn't execute.
>>>
>>> Any ideas?
>>>
>>> Thanks in advance
>>>
>>> Regards!!
>>>
>>> Hugo
>>>
>>> --
>>> You received this message because you are su

Re: [android-developers] TabLayout - tab doesn't refresh view

2016-01-12 Thread Hugo Teijiz 
MainActivity:
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);


getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
App.setTrxNumber(0);
App.setContext(MainActivity.this);

if (!isOnline()) {
Toast.makeText(this, "No se ha Podido Conectar con el 
Servidor", Toast.LENGTH_LONG).show();
finish();
}

StrictMode.ThreadPolicy policy = new 
StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);

if (ContextCompat.checkSelfPermission(this, 
Manifest.permission.READ_PHONE_STATE) == PackageManager.PERMISSION_GRANTED) 
{
TelephonyManager mngr = (TelephonyManager) 
getSystemService(Context.TELEPHONY_SERVICE);
imei = mngr.getDeviceId();
} else {
ActivityCompat.requestPermissions(this,
new String[]{Manifest.permission.READ_CONTACTS},
REQUEST_READ_PHONE_STATE_PERMISSION);
}

try {
ContentResolver cr = getContentResolver();
MostrarSettings(cr, true);
} catch (Exception e) {
Toast.makeText(this, e.getMessage(), Toast.LENGTH_LONG).show();
}

Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);

final TabLayout tabLayout = (TabLayout) 
findViewById(R.id.tab_layout);
tabLayout.addTab(tabLayout.newTab().setText("PENDIENTES"));
tabLayout.addTab(tabLayout.newTab().setText("CONFIRM"));
tabLayout.addTab(tabLayout.newTab().setText("RECHAZADOS"));
tabLayout.setTabGravity(TabLayout.GRAVITY_FILL);

final ViewPager viewPager = (ViewPager) findViewById(R.id.pager);
final PagerAdapter adapter = new PagerAdapter
(getSupportFragmentManager(), tabLayout.getTabCount());
viewPager.setAdapter(adapter);
viewPager.addOnPageChangeListener(new 
TabLayout.TabLayoutOnPageChangeListener(tabLayout));
tabLayout.setOnTabSelectedListener(new 
TabLayout.OnTabSelectedListener() {
@Override
public void onTabSelected(TabLayout.Tab tab) {
viewPager.setCurrentItem(tab.getPosition());
}

@Override
public void onTabUnselected(TabLayout.Tab tab) {

}

@Override
public void onTabReselected(TabLayout.Tab tab) {
viewPager.setCurrentItem(tab.getPosition());
}
});
}

PagerAdapter.java:
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentStatePagerAdapter;

/**
 * Created by Hugo on 08/01/2016.
 */
public class PagerAdapter extends FragmentStatePagerAdapter {
int mNumOfTabs;

public PagerAdapter(FragmentManager fm, int NumOfTabs) {
super(fm);
this.mNumOfTabs = NumOfTabs;
}

@Override
public Fragment getItem(int position) {

switch (position) {
case 0:
PendFragment tab1 = new PendFragment();
return tab1;
case 1:
ConfirmFragment tab2 = new ConfirmFragment();
return tab2;
case 2:
RejectFragment tab3 = new RejectFragment();
return tab3;
default:
return null;
}
}

@Override
public int getCount() {
return mNumOfTabs;
}
}

El martes, 12 de enero de 2016, 12:26:10 (UTC-3), MagouyaWare escribió:
>
> Code?
>
> On Tue, Jan 12, 2016, 9:16 AM Hugo Teijiz  > wrote:
>
>> Hello to everyone.
>>
>> I develop an Android application with TabLayout. The App has 3 tabs. When 
>> I click over Tab 1 (Index 0) and Tab 3 (Index 2) the view refresh great, 
>> but when I click over Tab 2 (Index 1) nothing happens.
>>
>> OnSelectedTab Listener executed correctly, and execute then 
>> setCurrentItem of viewPager, but onCreateView of Fragment doesn't execute.
>>
>> Any ideas?
>>
>> Thanks in advance
>>
>> Regards!!
>>
>> Hugo
>>
>> -- 
>> You received this message because you are subscribed to the Google Groups 
>> "Android Developers" group.
>> To unsubscribe from this group and stop receiving emails from it, send an 
>> email to android-developers+unsubscr...@googlegroups.com .
>> To post to this group, send email to android-d...@googlegroups.com 
>> .
>> Visit this group at https://groups.google.com/group/android-developers.
>> To view this discussion on the web visit 
>> https://groups.google.com/d/msgid/android-developers/4ac4ec61-7c1a-49f1-aa6f-974b19e4dd14%40googlegroups.com
>>  
>> 
>> .
>> For more options, visit https://groups.google.com/d/optout.
>>
>

Re: [android-developers] TabLayout - tab doesn't refresh view

2016-01-12 Thread Justin Anderson 
Code?

On Tue, Jan 12, 2016, 9:16 AM Hugo Teijiz  wrote:

> Hello to everyone.
>
> I develop an Android application with TabLayout. The App has 3 tabs. When
> I click over Tab 1 (Index 0) and Tab 3 (Index 2) the view refresh great,
> but when I click over Tab 2 (Index 1) nothing happens.
>
> OnSelectedTab Listener executed correctly, and execute then setCurrentItem
> of viewPager, but onCreateView of Fragment doesn't execute.
>
> Any ideas?
>
> Thanks in advance
>
> Regards!!
>
> Hugo
>
> --
> You received this message because you are subscribed to the Google Groups
> "Android Developers" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to android-developers+unsubscr...@googlegroups.com.
> To post to this group, send email to android-developers@googlegroups.com.
> Visit this group at https://groups.google.com/group/android-developers.
> To view this discussion on the web visit
> https://groups.google.com/d/msgid/android-developers/4ac4ec61-7c1a-49f1-aa6f-974b19e4dd14%40googlegroups.com
> 
> .
> For more options, visit https://groups.google.com/d/optout.
>

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