Android - Creating Multiple Levels of Tabs for ActionBar Using ViewPager and FragmentStatePagerAdapter

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闹比i 2020-12-18 16:14
How can I handle Android tabs in an ActionBar such that it presents multiple contextual levels of tabs and associated fragments to the user (in other words, I want the Actio
3条回答
不思量自难忘° (楼主)
2020-12-18 16:37
Part 2...
public void selectUpLayout()
{
    try
    {
        if((appContext.nCurrentLayoutID == R.layout.fragment_levelhome) || (appContext.nCurrentLayoutID == R.layout.fragment_level1_2) || (appContext.nCurrentLayoutID == R.layout.fragment_level1_3) || (appContext.nCurrentLayoutID == R.layout.fragment_level1_4) || (appContext.nCurrentLayoutID == R.layout.fragment_level1_4_1) || (appContext.nCurrentLayoutID == R.layout.fragment_level1_4_2))
            showLayoutHome();
        else if((appContext.nCurrentLayoutID == R.layout.fragment_level1_3_1) || (appContext.nCurrentLayoutID == R.layout.fragment_level1_3_1_1) || (appContext.nCurrentLayoutID == R.layout.fragment_level1_3_2) || (appContext.nCurrentLayoutID == R.layout.fragment_level1_3_2_1) || (appContext.nCurrentLayoutID == R.layout.fragment_level1_3_3) || (appContext.nCurrentLayoutID == R.layout.fragment_level1_3_3_1))
            showLayoutLevel1_3();
        else if((appContext.nCurrentLayoutID == R.layout.fragment_level1_2_1) || (appContext.nCurrentLayoutID == R.layout.fragment_level1_2_2) ||(appContext.nCurrentLayoutID == R.layout.fragment_level1_2_3))
            showLayoutLevel1_2();
        updateActionBar();
    }
    catch(Exception e)
    {
        appContext.showMessage("Error","[selectUpLayout]: "+e.toString());
    }
}

private void updateActionBar()
{
    try
    {
        if(mActionBar != null)
        {
            if(appContext.nCurrentLayoutID == R.layout.fragment_levelhome)
            {
                mActionBar.setTitle("levelhome");
                mActionBar.setSubtitle("levelhome");
                mActionBar.setHomeButtonEnabled(false);
            }
            else if(appContext.nCurrentLayoutID == R.layout.fragment_level1_2)
            {
                mActionBar.setTitle("fragment_level1_2");
                mActionBar.setSubtitle("fragment_level1_2");
                mActionBar.setHomeButtonEnabled(true);
            }
            else if(appContext.nCurrentLayoutID == R.layout.fragment_level1_3)
            {
                mActionBar.setTitle("fragment_level1_3");
                mActionBar.setSubtitle("fragment_level1_3");
                mActionBar.setHomeButtonEnabled(true);
            }
            else if(appContext.nCurrentLayoutID == R.layout.fragment_level1_4)
            {
                mActionBar.setTitle("fragment_level1_4");
                mActionBar.setSubtitle("fragment_level1_4");
                mActionBar.setHomeButtonEnabled(true);
            }
            else if(appContext.nCurrentLayoutID == R.layout.fragment_level1_2_1)
            {
                mActionBar.setTitle("Level1_2_1");
                mActionBar.setSubtitle("Level1_2_1");
                mActionBar.setHomeButtonEnabled(true);
            }
            else if(appContext.nCurrentLayoutID == R.layout.fragment_level1_2_2)
            {
                mActionBar.setTitle("Level1_2_2");
                mActionBar.setSubtitle("Level1_2_2");
                mActionBar.setHomeButtonEnabled(true);
            }
            else if(appContext.nCurrentLayoutID == R.layout.fragment_level1_2_3)
            {
                mActionBar.setTitle("Level1_2_3");
                mActionBar.setSubtitle("Level1_2_3");
                mActionBar.setHomeButtonEnabled(true);
            }
            else if(appContext.nCurrentLayoutID == R.layout.fragment_level1_3_1)
            {
                mActionBar.setTitle("Level1_3_1");
                mActionBar.setSubtitle("Level1_3_1");
                mActionBar.setHomeButtonEnabled(true);
            }
            else if(appContext.nCurrentLayoutID == R.layout.fragment_level1_3_1_1)
            {
                mActionBar.setTitle("Level1_3_1_1");
                mActionBar.setSubtitle("Level1_3_1_1");
                mActionBar.setHomeButtonEnabled(true);
            }
            else if(appContext.nCurrentLayoutID == R.layout.fragment_level1_3_2)
            {
                mActionBar.setTitle("Level1_3_2");
                mActionBar.setSubtitle("Level1_3_2");
                mActionBar.setHomeButtonEnabled(true);
            }
            else if(appContext.nCurrentLayoutID == R.layout.fragment_level1_3_2_1)
            {
                mActionBar.setTitle("Level1_3_2_1");
                mActionBar.setSubtitle("Level1_3_2_1");
                mActionBar.setHomeButtonEnabled(true);
            }
            else if(appContext.nCurrentLayoutID == R.layout.fragment_level1_3_3)
            {
                mActionBar.setTitle("Level1_3_3");
                mActionBar.setSubtitle("Level1_3_3");
                mActionBar.setHomeButtonEnabled(true);
            }
            else if(appContext.nCurrentLayoutID == R.layout.fragment_level1_3_3_1)
            {
                mActionBar.setTitle("Level1_3_3_1");
                mActionBar.setSubtitle("Level1_3_3_1");
                mActionBar.setHomeButtonEnabled(true);
            }
            else if(appContext.nCurrentLayoutID == R.layout.fragment_level1_4_1)
            {
                mActionBar.setTitle("Level1_4_1");
                mActionBar.setSubtitle("Level1_4_1");
                mActionBar.setHomeButtonEnabled(true);
            }
            else if(appContext.nCurrentLayoutID == R.layout.fragment_level1_4_2)
            {
                mActionBar.setTitle("Level1_4_2");
                mActionBar.setSubtitle("Level1_4_2");
                mActionBar.setHomeButtonEnabled(true);
            }
        }
    }
    catch(Exception e)
    {
        appContext.showMessage("Error","[AddTab]: "+e.toString());
    }
}

private void showLayoutHome()
{
    try
    {
        if(mActionBar != null)
        {
            if(appContext.nCurrentLayoutID == 0)
            {
                appContext.nCurrentLayoutID = R.layout.fragment_levelhome;
                addTab(tabLevelHome,-1);
                addTab(tabLevel1_2, -1);
                addTab(tabLevel1_3,-1);
                addTab(tabLevel1_4, -1);
            }
            else if(appContext.nCurrentLayoutID == R.layout.fragment_level1_2)
            {
                appContext.nCurrentLayoutID = R.layout.fragment_levelhome;
                removeTab(mActionBar.getTabAt(3));
                removeTab(mActionBar.getTabAt(2));

                addTab(tabLevel1_3,-1);
                addTab(tabLevel1_4, -1);
            }
            else if(appContext.nCurrentLayoutID == R.layout.fragment_level1_3)
            {
                appContext.nCurrentLayoutID = R.layout.fragment_levelhome;
                removeTab(mActionBar.getTabAt(4));
                removeTab(mActionBar.getTabAt(3));
                removeTab(mActionBar.getTabAt(2));
                removeTab(mActionBar.getTabAt(1));

                addTab(tabLevel1_2, -1);
                addTab(tabLevel1_3,-1);
                addTab(tabLevel1_4, -1);
            }
            else if((appContext.nCurrentLayoutID == R.layout.fragment_level1_4) || (appContext.nCurrentLayoutID == R.layout.fragment_level1_4_1))
            {
                appContext.nCurrentLayoutID = R.layout.fragment_levelhome;
                removeTab(mActionBar.getTabAt(3));
                removeTab(mActionBar.getTabAt(2));

                addTab(tabLevel1_2,1);
                addTab(tabLevel1_3, 2);
            }
            else if(appContext.nCurrentLayoutID == R.layout.fragment_level1_4_2)
            {
                if(mActionBar.getTabAt(1).getText() == " Level1_2")
                {
                    appContext.nCurrentLayoutID = R.layout.fragment_levelhome;
                    removeTab(mActionBar.getTabAt(3));
                    removeTab(mActionBar.getTabAt(2));

                    addTab(tabLevel1_3,-1);
                    addTab(tabLevel1_4, -1);
                }
                else
                {
                    appContext.nCurrentLayoutID = R.layout.fragment_levelhome;
                    removeTab(mActionBar.getTabAt(3));
                    removeTab(mActionBar.getTabAt(2));

                    addTab(tabLevel1_2,1);
                    addTab(tabLevel1_3, 2);
                }
            }
        }
    }
    catch(Exception e)
    {
        appContext.showMessage("Error","[showLayoutHome]: "+e.toString());
    }
}

private void showLayoutLevel1_2()
{
    try
    {
        if(mActionBar != null)
        {
            if(appContext.nCurrentLayoutID == R.layout.fragment_levelhome)
            {
                appContext.nCurrentLayoutID = R.layout.fragment_level1_2;
                removeTab(mActionBar.getTabAt(3));
                removeTab(mActionBar.getTabAt(2));

                addTab(tabLevel1_2_1,-1);
                addTab(tabLevel1_4_2, -1);
            }
            else
            {
                appContext.nCurrentLayoutID = R.layout.fragment_level1_2;
                removeTab(mActionBar.getTabAt(3));
                removeTab(mActionBar.getTabAt(2));

                addTab(tabLevelHome,0);
                addTab(tabLevel1_4_2, -1);
            }
        }
    }
    catch(Exception e)
    {
        appContext.showMessage("Error","[showLayoutLevel1_2]: "+e.toString());
    }
}

private void showLayoutLevel1_3()
{
    try
    {
        if(mActionBar != null)
        {
            if(appContext.nCurrentLayoutID == R.layout.fragment_levelhome)
            {
                appContext.nCurrentLayoutID = R.layout.fragment_level1_3;
                removeTab(mActionBar.getTabAt(3));
                removeTab(mActionBar.getTabAt(1));

                addTab(tabLevel1_3_1, -1);
                addTab(tabLevel1_3_2,-1);
                addTab(tabLevel1_3_3, -1);
            }
            else
            {
                appContext.nCurrentLayoutID = R.layout.fragment_level1_3;
                removeTab(mActionBar.getTabAt(2));
                removeTab(mActionBar.getTabAt(1));

                addTab(tabLevelHome,0);
                addTab(tabLevel1_3_1, -1);
                addTab(tabLevel1_3_2,-1);
                addTab(tabLevel1_3_3, -1);
            }
        }
    }
    catch(Exception e)
    {
        appContext.showMessage("Error","[showLayoutLevel1_3]: "+e.toString());
    }
}

private void showLayoutLevel1_4()
{
    try
    {
        if(mActionBar != null)
        {
            appContext.nCurrentLayoutID = R.layout.fragment_level1_4;
            removeTab(mActionBar.getTabAt(2));
            removeTab(mActionBar.getTabAt(1));

            addTab(tabLevel1_4_1,-1);
            addTab(tabLevel1_4_2, -1);
        }
    }
    catch(Exception e)
    {
        appContext.showMessage("Error","[showLayoutLevel1_4]: "+e.toString());
    }
}

private void showLayoutLevel1_2_1()
{
    try
    {
        if(mActionBar != null)
        {
            appContext.nCurrentLayoutID = R.layout.fragment_level1_2_1;
            removeTab(mActionBar.getTabAt(3));
            removeTab(mActionBar.getTabAt(0));

            addTab(tabLevel1_2_2,-1);
            addTab(tabLevel1_2_3, -1);
        }
    }
    catch(Exception e)
    {
        appContext.showMessage("Error","[showLayoutLevel1_2_1]: "+e.toString());
    }
}

private void showLayoutLevel1_3_1()
{
    try
    {
        if(mActionBar != null)
        {
            appContext.nCurrentLayoutID = R.layout.fragment_level1_3_1;
            removeTab(mActionBar.getTabAt(4));
            removeTab(mActionBar.getTabAt(3));
            removeTab(mActionBar.getTabAt(0));

            addTab(tabLevel1_3_1_1, -1);
        }
    }
    catch(Exception e)
    {
        appContext.showMessage("Error","[showLayoutLevel1_3_1]: "+e.toString());
    }
}

private void showLayoutLevel1_3_2()
{
    try
    {
        if(mActionBar != null)
        {
            appContext.nCurrentLayoutID = R.layout.fragment_level1_3_2;
            removeTab(mActionBar.getTabAt(4));
            removeTab(mActionBar.getTabAt(2));
            removeTab(mActionBar.getTabAt(0));

            addTab(tabLevel1_3_2_1, -1);
        }
    }
    catch(Exception e)
    {
        appContext.showMessage("Error","[showLayoutLevel1_3_2]: "+e.toString());
    }
}

private void showLayoutLevel1_3_3()
{
    try
    {
        if(mActionBar != null)
        {
            appContext.nCurrentLayoutID = R.layout.fragment_level1_3_3;
            removeTab(mActionBar.getTabAt(3));
            removeTab(mActionBar.getTabAt(2));
            removeTab(mActionBar.getTabAt(0));

            addTab(tabLevel1_3_3_1,-1);
        }
    }
    catch(Exception e)
    {
        appContext.showMessage("Error","[showLayoutLevel1_3_3]: "+e.toString());
    }
}
}
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