將應用更改為從右到左-Android

Question

我在Android應用中使用“標簽活動”，我想將打開我的應用時顯示的第一個標簽更改為最后一個標簽，但標簽的順序將保持不變（向右輕掃以轉到第一個標簽）。 因此，為了更改布局方向，我添加了清單

android:supportsRtl="true"

而我的主要活動

android:layoutDirection="rtl"

我應該添加/更改什么？

非常感謝你

編輯：這是我的頁面適配器代碼：

    @Override
public Fragment getItem(int index) {

    switch (index) {
        case 0:
            //
            return new Tab1Fragment();
        case 1:
            //
            return new Tab2Fragment();
        case 2:
            //
            return new Tab3Fragment();
        case 3:
            //
            return new Tab4Fragment();
        case 4:
            //
            return new Tab5Fragment();
    }

    return null;
}

和主要活動

public class MainActivity extends FragmentActivity implements
    ActionBar.TabListener {

private ViewPager viewPager;
private TabsPagerAdapter mAdapter;
private ActionBar actionBar;
// Tab titles
private String[] tabs = { "Tab1", "Tab2", "Tab3","Tab4","Tab5" };

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

    // Initilization
    viewPager = (ViewPager) findViewById(R.id.pager);
    actionBar = getActionBar();
    mAdapter = new TabsPagerAdapter(getSupportFragmentManager());

    viewPager.setAdapter(mAdapter);

    actionBar.setHomeButtonEnabled(false);
    actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);

    // Adding Tabs
    for (String tab_name : tabs) {
        actionBar.addTab(actionBar.newTab().setText(tab_name)
                .setTabListener(this));
    }

    /**
     * on swiping the viewpager make respective tab selected
     * */

     viewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {

        @Override
        public void onPageSelected(int position) {
            // on changing the page
            // make respected tab selected
            actionBar.setSelectedNavigationItem(position);
        }

        @Override
        public void onPageScrolled(int arg0, float arg1, int arg2) {
        }

        @Override
        public void onPageScrollStateChanged(int arg0) {
        }
    });
}

@Override
public void onTabReselected(Tab tab, FragmentTransaction ft) {
}

@Override
public void onTabSelected(Tab tab, FragmentTransaction ft) {
    // on tab selected
    // show respected fragment view
    viewPager.setCurrentItem(tab.getPosition());
}

@Override
public void onTabUnselected(Tab tab, FragmentTransaction ft) {
}
public static boolean isRTL(Locale locale) {
    final int directionality = Character.getDirectionality(locale.getDisplayName().charAt(0));
    return directionality == Character.DIRECTIONALITY_RIGHT_TO_LEFT ||
            directionality == Character.DIRECTIONALITY_RIGHT_TO_LEFT_ARABIC;
}

Answer 1

使用它來知道您是否使用RTL：

 public static boolean isRTL(Locale locale) {
    final int directionality = Character.getDirectionality(locale.getDisplayName().charAt(0));
    return directionality == Character.DIRECTIONALITY_RIGHT_TO_LEFT ||
           directionality == Character.DIRECTIONALITY_RIGHT_TO_LEFT_ARABIC;
}

比只是在開始時選擇適當的選項卡。 喜歡：

Locale current = getResources().getConfiguration().locale;
    if(isRTL(current)) {
    getActionBar().setSelectedNavigationItem(4);
    }`else {
    getActionBar().setSelectedNavigationItem(0);

}