所以我的应用程序处于 RTL 模式，因此，选项卡现在从右到左排序......!
..但是我在tabs之间滑动滑动的时候，违背了常识，所以我想反转一下..!看图看问题..!
我想要的是..! > 当我在 Tab1 中然后从左向右滑动时我希望它滑到 Tab 2 等等......!
这可能……!？
代码
我的客户 ViewPager
public class CustomViewPager extends android.support.v4.view.ViewPager{
private boolean enabled;
public CustomViewPager(Context context, AttributeSet attrs) {
super(context, attrs);
this.enabled = true;
}
@Override
public boolean onTouchEvent(MotionEvent event) {
if (this.enabled) {
return super.onTouchEvent(event);
}
return false;
}
@Override
public boolean onInterceptTouchEvent(MotionEvent event) {
if (this.enabled) {
return super.onInterceptTouchEvent(event);
}
return false;
}
public void setPagingEnabled(boolean enabled) {
this.enabled = enabled;
}
}
我的 TabActivity(助手类)
public class TabbedActivity extends BaseActivity {
//I extend BaseActivity to avoid repeating UI code like toolbar and stuff..
protected CustomViewPager viewPager;
public OrdersAdapter adapter;
public TabLayout tabs;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
tabs.setTabGravity(TabLayout.GRAVITY_FILL);
viewPager.setAdapter(adapter);
viewPager.addOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(tabs));
tabs.addOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
@Override
public void onTabSelected(TabLayout.Tab tab) {
setTabSelected(tab);
}
@Override
public void onTabUnselected(TabLayout.Tab tab) {
}
@Override
public void onTabReselected(TabLayout.Tab tab) {
}
});
}
public void setTabSelected(TabLayout.Tab tab) {
viewPager.setCurrentItem(tab.getPosition());
}
public void addTab(int title) {
tabs.addTab(tabs.newTab().setText(getString(title)));
}
}
我的 Activity 包含 Tablayout 并具有三个 fragment ，每个 fragment 一个。
public class MyOrders extends TabbedActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
setContentView(R.layout.activity_orders);
tabs = (TabLayout) findViewById(R.id.tab_layout);
addTab(R.string.NewOrderTabTitle); //tab1
addTab(R.string.MyOrderTabTitle); // tab2
addTab(R.string.FinOrderTabTitle); //tab3
adapter = new OrdersAdapter(getSupportFragmentManager(), tabs.getTabCount());
viewPager = (CustomViewPager) findViewById(R.id.pager);
viewPager.setPagingEnabled(true);
tabs.addOnTabSelectedListener(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.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
@Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
}
@Override
public void onPageSelected(int position) {
}
@Override
public void onPageScrollStateChanged(int state) {
}
});
super.onCreate(savedInstanceState);
}
}
更新
@regev avraham
adding the tabs in the reverse order, and then use
viewPager.setCurrentItem(adapter.getCount() - 1);to select the last tab.
根据您的评论，这是我在具有 tablayout 的 Activity 中所做的
//code...
tabs = (TabLayout) findViewById(R.id.tab_layout);
addTab(R.string.FinOrderTabTitle); //tab3
addTab(R.string.MyOrderTabTitle); // tab2
addTab(R.string.NewOrderTabTitle); //tab1
//code...
viewPager.setCurrentItem(adapter.getCount() - 1);
最佳答案
你可以查看这个库
https://github.com/diego-gomez-olvera/RtlViewPager
并实现如下
dependencies {
...
compile 'com.booking:rtlviewpager:1.0.1'
}
just add this instead of Viewpager
<com.booking.rtlviewpager.RtlViewPager
android:id="@+id/pager"
android:layout_width="match_parent"
android:layout_height="match_parent" />
关于android - 如何反转 viewpager 滑动，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/43952926/