Question

我正在尝试允许我的应用支持多个主题，目前正在开发一个界面，在用户选择之前会显示所有这些主题。

我想知道是否有可能做出类似这样的事情：

如果是这样，我该怎么做呢？我想它会涉及标签活动，但除此之外我不知道。谷歌搜索并没有太多帮助：/

Answer 1

好吧，我不能用花哨的鞠躬看起来帮助你。为此，你需要使用表面视图进行自定义渲染..这就说如果你可以平坦..（有些库可能会让你更近一步）你可以做一个简单的HORIZONTAL Recyclerview ..我的实现使用自定义查看寻呼机之间的交换。但是，您可以忽略该部分，标记为2

第1节tabber UI

<android.support.v7.widget.RecyclerView
    android:id="@+id/custom_tab_bar"
    android:layout_width="wrap_content"
    android:layout_height="100dp"
    android:orientation="horizontal"
    android:paddingTop="20dp"
    app:layoutManager="android.support.v7.widget.LinearLayoutManager"
    tools:listitem="@layout/tab_layout"
/>

我无法在4个月的时间内将tab_layout的UI显示为愚蠢的自定义。但问题是它是垂直的

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout
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="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
>
<android.support.constraint.ConstraintLayout
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/root"
    android:paddingBottom="10dp"
    android:background="@color/black"
    android:paddingLeft="6dp"
    android:paddingRight="6dp"
> ...

代码实施

  @Override
    public void TabItemSelected(int position) {
    mCustomTabAdapter.setSelectedPosition(position);
    mCustomTabAdapter.notifyDataSetChanged();
    mCustomTabBarRecyclerView.smoothScrollToPosition(position);

    mViewPager.setCurrentItem(position, true);
    mPageAdapter.notifyDataSetChanged();
    mCustomTabBarRecyclerView.smoothScrollToPosition(position);
}

在我的ui创作中

            mCustomTabBarRecyclerView.setAdapter(mCustomTabAdapter);
            mCustomTabBarRecyclerView.setHasFixedSize(true);
            mCustomTabBarRecyclerView.setLayoutManager(mLayoutManager);

第2节视图寻呼机。 I think I based it off this vogella example

  <xx.xx.CustomViewPager
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/xx_viewpager"
    android:layout_width="wrap_content"
    android:layout_height="match_parent"
    android:layout_alignParentTop="true"
    android:layout_alignParentLeft="true"
/>

CUSTOM PAGER

public class CustomViewPager extends ViewPager {

public CustomViewPager(Context context, AttributeSet attrs) {
    super(context, attrs);
}

@Override
public boolean onTouchEvent(MotionEvent event) {
    return false;

}

@Override
public boolean onInterceptTouchEvent(MotionEvent event) {
    return false;

}

}

SETUP

 mViewPager.addOnPageChangeListener(getPageChangeListener());
            mPageAdapter = new ProfileAdapter(getFragmentManager(),
                    mMemberArrayList);
            mViewPager.setAdapter(mPageAdapter);


   private ViewPager.OnPageChangeListener getPageChangeListener() {

    return new ViewPager.SimpleOnPageChangeListener() {

        @Override
        public void onPageScrolled(int position, float positionOffset,
                int positionOffsetPixels) {

        }

        @Override
        public void onPageScrollStateChanged(int arg0) {

        }

        @Override
        public void onPageSelected(final int position) {
            mCustomTabAdapter.setSelectedPosition(position);
            mCustomTabAdapter.notifyDataSetChanged();
            mCustomTabBarRecyclerView.smoothScrollToPosition(position);

        }
    };
}

CUSTOM ADAPTER

public class UserProfileAdapter extends FragmentPagerAdapter {

private ArrayList<Member> mMemberArrayList = null;
private final DashboardFragment[] mFragments;

/**
 * Build the set of fragments that we need for the view pages.
 */
public UserProfileAdapter(FragmentManager fm, ArrayList<Member> arrayList) {
    super(fm);
    mMemberArrayList = arrayList;
    mFragments = new DashboardFragment[arrayList.size()];
    DashboardFragment.setDataSource(arrayList);
    for (int i = 0; i < arrayList.size(); i++) {
        mFragments[i] = DashboardFragment.newInstance(i);
    }
}

@Override
public int getCount() {

    if (mMemberArrayList == null) {
        return 0;
    }
    return mMemberArrayList.size();
}

@Override
public CharSequence getPageTitle(int position) {

    return "Pos: " + position;
}

@Override
public Fragment getItem(int position) {
    return mFragments[position];
}
}

圆形Android选择器

1 个答案: