android fragment学习5--fragment扩展 TabLayout非自定义_第1张图片

Activity

/** * Created by steven on 2017/10/29 0029. */public class FloatActionBarActivity extends BaseActivity {    private DrawerLayout mRootDl;    private LinearLayout mMenuLl;    private TabLayout mIndicatorTl;    private ViewPager mContentVp;    private List tabIndicators;    private List tabFragments;    private ContentPagerAdapter contentAdapter;    private ActionBarDrawerToggle drawerToggle;    public static void startActivity(Context context ){        Intent intent = new Intent(context, FloatActionBarActivity.class);        context.startActivity(intent);    }    @Override    protected void onCreate(@Nullable Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_fab);        mIndicatorTl = (TabLayout) findViewById(R.id.tl_indicator);        mContentVp = (ViewPager) findViewById(R.id.vp_content);        initDrawer();        initContent();        initTab();    }    private void initDrawer() {        mRootDl = (DrawerLayout) findViewById(R.id.dl_root);        drawerToggle = new ActionBarDrawerToggle(this, mRootDl, R.string.app_name, R.string.app_name);        mRootDl.setDrawerListener(drawerToggle);        mMenuLl = (LinearLayout) findViewById(R.id.ll_menu);        DrawerLayout.LayoutParams layoutParams = (DrawerLayout.LayoutParams) mMenuLl.getLayoutParams();        layoutParams.width = getScreenSize()[0]/4*3;        getSupportActionBar().setHomeButtonEnabled(true);        getSupportActionBar().setDisplayHomeAsUpEnabled(true);    }    public int[] getScreenSize(){        int screenSize[] = new int[2];        DisplayMetrics displayMetrics = new DisplayMetrics();        this.getWindowManager().getDefaultDisplay().getMetrics(displayMetrics);        screenSize[0] = displayMetrics.widthPixels;        screenSize[1] = displayMetrics.heightPixels;        return screenSize;    }    public void onClickFab(View v){        Snackbar.make(findViewById(R.id.fab_add), "Show The Snackbar", Snackbar.LENGTH_SHORT).show();    }    private void initTab(){        mIndicatorTl.setTabMode(TabLayout.MODE_FIXED);        mIndicatorTl.setTabTextColors(ContextCompat.getColor(this, R.color.gray), ContextCompat.getColor(this, R.color.white));        mIndicatorTl.setSelectedTabIndicatorColor(ContextCompat.getColor(this, R.color.white));        ViewCompat.setElevation(mIndicatorTl, 10);        mIndicatorTl.setupWithViewPager(mContentVp);    }    private void initContent(){        tabIndicators = new ArrayList<>();        for (int i = 0; i < 3; i++) {            tabIndicators.add("Tab " + i);        }        tabFragments = new ArrayList<>();        for (String s : tabIndicators) {            tabFragments.add(TabListFragment.newInstance(s));        }        contentAdapter = new ContentPagerAdapter(getSupportFragmentManager());        mContentVp.setAdapter(contentAdapter);    }    @Override    public boolean onCreateOptionsMenu(Menu menu) {        getMenuInflater().inflate(R.menu.menu_samples, menu);        return true;    }    @Override    public void onConfigurationChanged(Configuration newConfig) {        super.onConfigurationChanged(newConfig);        drawerToggle.onConfigurationChanged(newConfig);    }    @Override    public void onPostCreate(Bundle savedInstanceState) {        super.onPostCreate(savedInstanceState);        drawerToggle.syncState();    }    @Override    public boolean onOptionsItemSelected(MenuItem item) {        if (drawerToggle.onOptionsItemSelected(item)){            return true;        }        return super.onOptionsItemSelected(item);    }    class ContentPagerAdapter extends FragmentPagerAdapter {        public ContentPagerAdapter(FragmentManager fm) {            super(fm);        }        @Override        public Fragment getItem(int position) {            return tabFragments.get(position);        }        @Override        public int getCount() {            return tabIndicators.size();        }        @Override        public CharSequence getPageTitle(int position) {            return tabIndicators.get(position);        }    }}

布局文件

<?xml version="1.0" encoding="utf-8"?>.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:app="http://schemas.android.com/apk/res-auto"    android:id="@+id/dl_root"    android:layout_width="match_parent"    android:layout_height="match_parent">    .support.design.widget.CoordinatorLayout        android:layout_width="match_parent"        android:layout_height="match_parent">        .support.design.widget.AppBarLayout            android:id="@+id/appbar"            android:layout_width="match_parent"            android:layout_height="wrap_content">            "@layout/include_toolbar" />            .support.design.widget.TabLayout                android:id="@+id/tl_indicator"                android:layout_width="match_parent"                android:layout_height="wrap_content" />        .support.design.widget.AppBarLayout>        .support.v4.view.ViewPager            android:id="@+id/vp_content"            android:layout_width="match_parent"            android:layout_height="match_parent"            app:layout_behavior="@string/appbar_scrolling_view_behavior" />        "bottom"            android:layout_width="wrap_content"            android:layout_height="wrap_content">            .support.design.widget.CoordinatorLayout>    "@+id/ll_menu"        android:layout_width="match_parent"        android:layout_height="match_parent"        android:layout_gravity="start"        android:orientation="vertical"        android:gravity="center"        android:background="@color/white">        "wrap_content"            android:layout_height="wrap_content"            android:text="Menu Content"            android:textColor="@color/black"            android:textSize="@dimen/sp_16"/>    .support.v4.widget.DrawerLayout>

子fragment

public class TabListFragment extends Fragment implements AdapterView.OnItemClickListener{    private static final String EXTRA_CONTENT = "content";    private ListView mContentLv;    public static TabListFragment newInstance(String content){        Bundle arguments = new Bundle();        arguments.putString(EXTRA_CONTENT, content);        TabListFragment tabContentFragment = new TabListFragment();        tabContentFragment.setArguments(arguments);        return tabContentFragment;    }    @Nullable    @Override    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {        View contentView = inflater.inflate(R.layout.fragment_tab_list, null);        mContentLv = (ListView) contentView.findViewById(R.id.lv_content);        mContentLv.setOnItemClickListener(this);        ViewCompat.setNestedScrollingEnabled(mContentLv, true);        mContentLv.setAdapter(new ContentAdapter());        return contentView;    }    @Override    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {        // TODO    }    private class ContentAdapter extends BaseAdapter{        @Override        public int getCount() {            return 10;        }        @Override        public Object getItem(int position) {            return null;        }        @Override        public long getItemId(int position) {            return 0;        }        @Override        public View getView(final int position, View convertView, ViewGroup parent) {            View contentView = LayoutInflater.from(getActivity()).inflate(R.layout.item_simple_list_2, null);            ImageView coverIv = (ImageView) contentView.findViewById(R.id.iv_cover);            coverIv.setImageResource(getResources().getIdentifier("ic_palette_0"+position%4, "mipmap", getActivity().getPackageName()));            contentView.findViewById(R.id.cv_content).setOnClickListener(new View.OnClickListener() {                @Override                public void onClick(View v) {                    Intent detailIntent = new Intent(getActivity(), PaletteDetailActivity.class);                    detailIntent.putExtra(PaletteDetailActivity.EXTRA_INDEX, position);                    startActivity(detailIntent);                }            });            return contentView;        }    }}

小结

这个demo跟fragment4一样的，都是tabLayout和viewpager,因为它使用到了 android.support.design.widget.CoordinatorLayout，可伸缩扩展的布局，所以拿出来，方便以后用到。这样的布局现新的app是经常用到的。用法，代码的含义在fragment4中有提到。

android fragment学习6–其他种类的tab
https://blog.csdn.net/qq_26296197/article/details/81147007

android fragment学习5--fragment扩展 TabLayout非自定义

Activity

布局文件

小结

更多相关文章

随机推荐