Schede Direzione del dito nell'app per Android da destra a sinistra

Question

Ho un'app per Android con schede. Voglio che l'app sia da destra a sinistra.
Ho messo android: supportsRtl = "true" nel file manifest, e ho modificato alcuni degli elementi per essere android: layoutDirection = "rtl".

Cambia tutto da destra a sinistra, che è quello che voglio, tranne che inverte la direzione di scorrimento nelle schede- quando si fa scorrere verso sinistra, si sposta verso la scheda sinistra, invece del contrario rispetto allo scorrimento . Voglio cambiarlo per farlo scorrere regolarmente.

Questo è il mio codice:

<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android" 
xmlns:app="http://schemas.android.com/apk/res-auto" 
xmlns:tools="http://schemas.android.com/tools" 
android:layout_width="match_parent" 
android:layout_height="match_parent" 
android:layout_gravity="right" 
android:fitsSystemWindows="true" 
android:id="@+id/drawer_layout"> 
<RelativeLayout 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent" 
    android:layoutDirection="rtl"> 
    <include 
     android:id="@+id/toolbar" 
     android:gravity="right" 
     layout="@layout/toolbar" /> 
    <LinearLayout 
     android:orientation="vertical" 
     android:layout_width="fill_parent" 
     android:layout_height="fill_parent" 
     android:id="@+id/main_layout" 
     android:layout_below="@id/toolbar"> 
     <com.refractored.PagerSlidingTabStrip 
      android:id="@+id/tabs" 
      android:layout_width="match_parent" 
      android:layout_height="?attr/actionBarSize" 
      android:background="?attr/colorPrimary" 
      android:textColor="#ecf0f1" 
      app:pstsShouldExpand="true"/> 

     <android.support.v4.view.ViewPager 
      android:id="@+id/pager" 
      android:layout_width="match_parent" 
      android:layout_height="0dp" 
      android:layout_weight="1" 
      tools:context=".MainActivity" /> 
    </LinearLayout> 
</RelativeLayout> 
<android.support.design.widget.NavigationView 
    android:layout_width="wrap_content" 
    android:layout_height="match_parent" 
    android:layout_gravity="start" 
    android:id="@+id/nav_view" 
    android:layoutDirection="rtl" 
    app:headerLayout="@layout/header" 
    app:menu="@menu/nav_menu" /> 
</android.support.v4.widget.DrawerLayout> 

Spero tu mi possa aiutare.

Grazie!

Answer 1

Ho lo stesso problema. Secondo this sembra che non ci sia una soluzione semplice. È possibile utilizzare una di quelle librerie rtlViewPager -

• https://github.com/ksloginov/RtlViewPager
• https://github.com/diego-gomez-olvera/RtlViewPager

Answer 2

ho aggiunto:

android:layoutDirection="ltr" a TabLayout.

NON

android:layoutDirection="rtl"

e ha funzionato bene

Answer 3

Ho avuto lo stesso problema, perché la mia app funziona sia per inglese ed ebraico. Ecco cosa ho fatto:

1. Impostare nelle attività tabs android:layoutDirection="ltr".

2. Nella scheda attività java - in onCreate spostato all'ultima pagina se la lingua era ebraico.

3. In PlaceholderFragment classe sia in onCreateView e getPageTitl e controllato se la lingua è ebraico, e in tal caso restituito i punti di vista e apice in ordine inverso.

So che la domanda era per quanto riguarda ad rtl in generale e non solo l'ebraico, ma questo cambiamento può essere facilmente implementato cambiando la condizione.

Qui il mio FinalTutorialActivity codice completo:

package com.romsharony.finaltutorial; 

import android.support.design.widget.TabLayout; 
import android.support.design.widget.FloatingActionButton; 
import android.support.design.widget.Snackbar; 
import android.support.v7.app.AppCompatActivity; 
import android.support.v7.widget.Toolbar; 

import android.support.v4.app.Fragment; 
import android.support.v4.app.FragmentManager; 
import android.support.v4.app.FragmentPagerAdapter; 
import android.support.v4.view.ViewPager; 
import android.os.Bundle; 
import android.view.LayoutInflater; 
import android.view.Menu; 
import android.view.MenuItem; 
import android.view.View; 
import android.view.ViewGroup; 
import java.util.Locale; 

public class FinalTutorialActivity extends AppCompatActivity { 

    /** 
    * The {@link android.support.v4.view.PagerAdapter} that will provide 
    * fragments for each of the sections. We use a 
    * {@link FragmentPagerAdapter} derivative, which will keep every 
    * loaded fragment in memory. If this becomes too memory intensive, it 
    * may be best to switch to a 
    * {@link android.support.v4.app.FragmentStatePagerAdapter}. 
    */ 
    private SectionsPagerAdapter mSectionsPagerAdapter; 

    /** 
    * The {@link ViewPager} that will host the section contents. 
    */ 
    private ViewPager mViewPager; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_final_tutorial); 

     Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar); 
     setSupportActionBar(toolbar); 
     // Create the adapter that will return a fragment for each of the three 
     // primary sections of the activity. 
     mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager()); 

     // Set up the ViewPager with the sections adapter. 
     mViewPager = (ViewPager) findViewById(R.id.container); 
     mViewPager.setAdapter(mSectionsPagerAdapter); 

     TabLayout tabLayout = (TabLayout) findViewById(R.id.tabs); 
     tabLayout.setupWithViewPager(mViewPager); 

     FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab); 
     fab.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View view) { 
       Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG) 
         .setAction("Action", null).show(); 
      } 
     }); 

     // Go to last page if language is Hebrew 
     if (Locale.getDefault().toString().equals("iw_IL") || Locale.getDefault().toString().equals("he_IL")) { 
      mViewPager.setCurrentItem(2); 
     } 

    } 


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

    @Override 
    public boolean onOptionsItemSelected(MenuItem item) { 
     // Handle action bar item clicks here. The action bar will 
     // automatically handle clicks on the Home/Up button, so long 
     // as you specify a parent activity in AndroidManifest.xml. 
     int id = item.getItemId(); 

     //noinspection SimplifiableIfStatement 
     if (id == R.id.action_settings) { 
      return true; 
     } 

     return super.onOptionsItemSelected(item); 
    } 

    /** 
    * A placeholder fragment containing a simple view. 
    */ 
    public static class PlaceholderFragment extends Fragment { 
     /** 
     * The fragment argument representing the section number for this 
     * fragment. 
     */ 
     private static final String ARG_SECTION_NUMBER = "section_number"; 

     public PlaceholderFragment() { 
     } 

     /** 
     * Returns a new instance of this fragment for the given section 
     * number. 
     */ 
     public static PlaceholderFragment newInstance(int sectionNumber) { 
      PlaceholderFragment fragment = new PlaceholderFragment(); 
      Bundle args = new Bundle(); 
      args.putInt(ARG_SECTION_NUMBER, sectionNumber); 
      fragment.setArguments(args); 
      return fragment; 
     } 

     @Override 
     public View onCreateView(LayoutInflater inflater, ViewGroup container, 
           Bundle savedInstanceState) { 
      View rootView; 

      // If language is Hebrew return the pages in reverse direction 
      if (Locale.getDefault().toString().equals("iw_IL") || Locale.getDefault().toString().equals("he_IL")) { 
       switch (getArguments().getInt(ARG_SECTION_NUMBER)) { 
        case 1: 
         rootView = inflater.inflate(R.layout.page_three, container, false); 
         break; 
        case 2: 
         rootView = inflater.inflate(R.layout.page_two, container, false); 
         break; 
        default: 
         rootView = inflater.inflate(R.layout.page_one, container, false); 
       } 

      } else { 
       switch (getArguments().getInt(ARG_SECTION_NUMBER)) { 
        case 3: 
         rootView = inflater.inflate(R.layout.page_three, container, false); 
         break; 
        case 2: 
         rootView = inflater.inflate(R.layout.page_two, container, false); 
         break; 
        default: 
         rootView = inflater.inflate(R.layout.page_one, container, false); 
       } 
      } 
      return rootView; 
     } 
    } 

    /** 
    * A {@link FragmentPagerAdapter} that returns a fragment corresponding to 
    * one of the sections/tabs/pages. 
    */ 
    public class SectionsPagerAdapter extends FragmentPagerAdapter { 

     public SectionsPagerAdapter(FragmentManager fm) { 
      super(fm); 
     } 

     @Override 
     public Fragment getItem(int position) { 
      // getItem is called to instantiate the fragment for the given page. 
      // Return a PlaceholderFragment (defined as a static inner class below). 
      return PlaceholderFragment.newInstance(position + 1); 
     } 

     @Override 
     public int getCount() { 
      // Show 3 total pages. 
      return 3; 
     } 

     @Override 
     public CharSequence getPageTitle(int position) { 

      // If language is Hebrew return the titles in reverse direction 
      if (Locale.getDefault().toString().equals("iw_IL") || Locale.getDefault().toString().equals("he_IL")) { 
       switch (position) { 
        case 0: 
         return getResources().getString(R.string.section_three); 
        case 1: 
         return getResources().getString(R.string.section_2); 
        default: 
         return getResources().getString(R.string.section_one); 
       } 
      } else { 
       switch (position) { 
        case 2: 
         return getResources().getString(R.string.section_three); 
        case 1: 
         return getResources().getString(R.string.section_2); 
        default: 
         return getResources().getString(R.string.section_one); 
       } 
      } 
     } 
    } 
} 

Answer 4

subito dopo aver impostato la scheda è sufficiente impostare la voce corrente nel mViewPager.

// Set up the ViewPager with the sections adapter. 
    mViewPager = (ViewPager) findViewById(R.id.container); 
    mViewPager.setAdapter(mSectionsPagerAdapter); 
//set the default item to be # 3 
    mViewPager.setCurrentItem(3); 

Answer 5

basta usare questo codice:

mViewPager.setPageTransformer(true,null); 

Answer 6

Il modo più semplice è di utilizzare questo una linea di codice:

tabLayout.setLayoutDirection(View.LAYOUT_DIRECTION_LTR); 

per RTL ordinamento delle schede, si dovrebbe fare in pager :

viewPager.setCurrentItem(adapter.getCount()); 

grazie a: arash-hatemi