一个十分简洁实用的MD风格的UI主框架

2017-5-23

详见：https://github.com/baiqiantao/CheesesquareSample

MainActivity

public class MainActivity extends AppCompatActivity {

	@BindView(R.id.toolbar) Toolbar toolbar;
	@BindView(R.id.tabs) TabLayout tabLayout;
	@BindView(R.id.appbar) AppBarLayout appbar;
	@BindView(R.id.viewpager) ViewPager viewPager;
	@BindView(R.id.fab) FloatingActionButton fab;//浮动操作按钮
	@BindView(R.id.nav_view) NavigationView navigationView;//
	@BindView(R.id.drawer_layout) DrawerLayout drawerLayout;//侧滑布局

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

		setSupportActionBar(toolbar);
		getSupportActionBar().setHomeAsUpIndicator(R.drawable.ic_menu);
		getSupportActionBar().setDisplayHomeAsUpEnabled(true);

		navigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {
			@Override
			public boolean onNavigationItemSelected(@NonNull MenuItem menuItem) {
				menuItem.setChecked(true);
				drawerLayout.closeDrawers();
				return true;
			}
		});

		Adapter adapter = new Adapter(getSupportFragmentManager());
		adapter.addFragment(new CheeseListFragment(), "白乾涛");
		adapter.addFragment(new CheeseListFragment(), "包青天");
		viewPager.setAdapter(adapter);

		tabLayout.setupWithViewPager(viewPager);
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		getMenuInflater().inflate(R.menu.sample_actions, menu);
		return true;
	}

	@Override
	public boolean onPrepareOptionsMenu(Menu menu) {
		switch (AppCompatDelegate.getDefaultNightMode()) {
			case AppCompatDelegate.MODE_NIGHT_FOLLOW_SYSTEM:
				menu.findItem(R.id.menu_night_mode_system).setChecked(true);
				break;
			case AppCompatDelegate.MODE_NIGHT_AUTO:
				menu.findItem(R.id.menu_night_mode_auto).setChecked(true);
				break;
			case AppCompatDelegate.MODE_NIGHT_YES:
				menu.findItem(R.id.menu_night_mode_night).setChecked(true);
				break;
			case AppCompatDelegate.MODE_NIGHT_NO:
				menu.findItem(R.id.menu_night_mode_day).setChecked(true);
				break;
		}
		return true;
	}

	@Override
	public boolean onOptionsItemSelected(MenuItem item) {
		switch (item.getItemId()) {
			case android.R.id.home:
				drawerLayout.openDrawer(GravityCompat.START);
				return true;
			case R.id.menu_night_mode_system:
				setNightMode(AppCompatDelegate.MODE_NIGHT_FOLLOW_SYSTEM);
				break;
			case R.id.menu_night_mode_day:
				setNightMode(AppCompatDelegate.MODE_NIGHT_NO);
				break;
			case R.id.menu_night_mode_night:
				setNightMode(AppCompatDelegate.MODE_NIGHT_YES);
				break;
			case R.id.menu_night_mode_auto:
				setNightMode(AppCompatDelegate.MODE_NIGHT_AUTO);
				break;
		}
		return super.onOptionsItemSelected(item);
	}

	private void setNightMode(@AppCompatDelegate.NightMode int nightMode) {
		AppCompatDelegate.setDefaultNightMode(nightMode);
		if (Build.VERSION.SDK_INT >= 11) recreate();
	}

	@OnClick(R.id.fab)
	public void onViewClicked() {
		Snackbar.make(fab, "Here's a Snackbar", Snackbar.LENGTH_LONG).show();
	}

	static class Adapter extends FragmentPagerAdapter {
		private final List<Fragment> mFragments = new ArrayList<>();
		private final List<String> mFragmentTitles = new ArrayList<>();

		public Adapter(FragmentManager fm) {
			super(fm);
		}

		public void addFragment(Fragment fragment, String title) {
			mFragments.add(fragment);
			mFragmentTitles.add(title);
		}

		@Override
		public Fragment getItem(int position) {
			return mFragments.get(position);
		}

		@Override
		public int getCount() {
			return mFragments.size();
		}

		@Override
		public CharSequence getPageTitle(int position) {
			return mFragmentTitles.get(position);
		}
	}
}

MainActivity布局

<?xml version="1.0" encoding="utf-8"?>
<android.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/drawer_layout"
                                        android:layout_width="match_parent"
                                        android:layout_height="match_parent"
                                        android:fitsSystemWindows="true">

    <include layout="@layout/include_list_viewpager"/>

    <!--侧滑布局-->
    <android.support.design.widget.NavigationView
        android:id="@+id/nav_view"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:layout_gravity="start"
        android:fitsSystemWindows="true"
        app:headerLayout="@layout/nav_header"
        app:menu="@menu/drawer_view"/>

</android.support.v4.widget.DrawerLayout>

MainActivity内容区域布局

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
                                                 xmlns:app="http://schemas.android.com/apk/res-auto"
                                                 android:id="@+id/main_content"
                                                 android:layout_width="match_parent"
                                                 android:layout_height="match_parent">

    <android.support.design.widget.AppBarLayout
        android:id="@+id/appbar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">

        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            android:background="?attr/colorPrimary"
            app:layout_scrollFlags="scroll|enterAlways|snap"
            app:popupTheme="@style/ThemeOverlay.AppCompat.Light"/>

        <android.support.design.widget.TabLayout
            android:id="@+id/tabs"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"/>

    </android.support.design.widget.AppBarLayout>

    <android.support.v4.view.ViewPager
        android:id="@+id/viewpager"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_behavior="@string/appbar_scrolling_view_behavior"/>

    <android.support.design.widget.FloatingActionButton
        android:id="@+id/fab"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="end|bottom"
        android:layout_margin="@dimen/fab_margin"
        android:src="@drawable/ic_done"/>

</android.support.design.widget.CoordinatorLayout>

Fragment

public class CheeseListFragment extends Fragment {
	
	@Override
	public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
		RecyclerView recyclerView = (RecyclerView) inflater.inflate(R.layout.fragment_cheese_list, container, false);
		recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
		recyclerView.setAdapter(new MyAdapter(getActivity(), getRandomSublist()));
		return recyclerView;
	}
	
	private List<String> getRandomSublist() {
		String[] array = Cheeses.sCheeseStrings;
		ArrayList<String> list = new ArrayList<String>();
		while (list.size() < 30) {
			list.add(array[new Random().nextInt(array.length)]);
		}
		return list;
	}
}

Adapter

public class MyAdapter extends RecyclerView.Adapter<MyAdapter.ViewHolder> {
	private List<String> mList;
	private Context context;

	public MyAdapter(Context context, List<String> mList) {
		this.mList = mList;
		this.context = context;
	}

	@Override
	public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
		return new ViewHolder(LayoutInflater.from(context).inflate(R.layout.list_item, parent, false));
	}

	@Override
	public void onBindViewHolder(final ViewHolder holder, int position) {
		holder.mTextView.setText(mList.get(position));
		holder.ll_item.setOnClickListener(new View.OnClickListener() {
			@Override
			public void onClick(View v) {
				Intent intent = new Intent(context, CheeseDetailActivity.class);
				intent.putExtra(CheeseDetailActivity.EXTRA_NAME, mList.get(holder.getAdapterPosition()));
				context.startActivity(intent);
			}
		});

		Glide.with(holder.mImageView.getContext())
				.load(Cheeses.getRandomCheeseDrawable())
				.fitCenter()
				.into(holder.mImageView);
	}

	@Override
	public int getItemCount() {
		return mList.size();
	}

	static class ViewHolder extends RecyclerView.ViewHolder {
		@BindView(R.id.avatar) CircleImageView mImageView;
		@BindView(R.id.text) TextView mTextView;
		@BindView(R.id.ll_item) View ll_item;

		ViewHolder(View view) {
			super(view);
			ButterKnife.bind(this, view);
		}
	}
}

2017-5-23

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