约健: day1

Toolbar

Them修改为无actionBar

Mainfest文件修改

如：

android:theme="@style/Theme.AppCompat.Light.NoActionBar

代码中对toolbar最基本的设置

public class MainActivity extends AppCompatActivity {
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
 
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
 
        // Logo
        toolbar.setLogo(R.mipmap.push_4);
 
        // 主标题
        toolbar.setTitle("Title");
 
        // 副标题
        toolbar.setSubtitle("Sub Title");
 
        //设置toolbar
        setSupportActionBar(toolbar);
 
        //左边的小箭头（注意需要在setSupportActionBar(toolbar)之后才有效果）
        toolbar.setNavigationIcon(R.mipmap.back);
 
        //菜单点击事件（注意需要在setSupportActionBar(toolbar)之后才有效果）
        toolbar.setOnMenuItemClickListener(onMenuItemClick);
    }
}

绑定菜单（搜索）

在res->menu 下新建search.xml

<menu 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" tools:context=".MainActivity">
    <item
        android:id="@+id/ab_search"
        android:orderInCategory="80"
        android:title="搜索"
        app:actionViewClass="android.support.v7.widget.SearchView"
    app:showAsAction="ifRoom"/>

</menu>

重写onCreateOptionsMenu方法

 @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.search, menu);
        SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
        SearchView searchView = (SearchView) menu.findItem(R.id.ab_search).getActionView();

        searchView.setSearchableInfo(searchManager.getSearchableInfo(getComponentName()));
        return true;
    }

• 创建searchable文件
  在res目录下新建xml文件夹，在文件夹中创建searchable.xml:

<?xml version="1.0" encoding="utf-8"?>
<searchable xmlns:android="http://schemas.android.com/apk/res/android"
    android:hint="姓名"
    android:imeOptions="actionSearch"
    android:label="@string/app_name">

</searchable>

• 配置Manifest

  创建一个SearchableActivity,然后进行配置：

<activity android:name=".ui.activity.SearchableActivity" >
            <intent-filter>
                <action android:name="android.intent.action.SEARCH" />
            </intent-filter>
            <meta-data android:name="android.app.searchable"
                android:resource="@xml/searchable"/>
</activity>

可以通过 getIntent().getStringExtra(SearchManager.QUERY); 来获取搜索框中输入的内容，然后就可以实现搜索了。

Bottombar

使用BottomNavigation

新建6个Fragment

例：

public class MineFragment extends Fragment {
    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        return super.onCreateView(inflater, container, savedInstanceState);
    }

    public static MineFragment newInstance(String name) {
        MineFragment fragment = new MineFragment();
        Bundle args = new Bundle();
        args.putString("name", name);
        fragment.setArguments(args);
        return fragment;
    }
}

设置fragment跳转

将6个fragment放入一个List里，点击item时根据position切换。

    private List<Fragment> fragments;
    
    protected void onCreate(Bundle savedInstanceState) {
    ....//省略
        fragments = new ArrayList<>();
        initBottomBar();
        setDefaultFragment();
    }
    /**
     * 设置默认显示的fragment
     */
    private void setDefaultFragment() {
        FragmentManager manager = getSupportFragmentManager();
        FragmentTransaction transaction = manager.beginTransaction();
        transaction.replace(R.id.id_content, ActivityFragment.newInstance("首页"));
        transaction.commit();
    }

    /**
     * 获取fragment
     *
     * @return fragment列表
     */
    private List<Fragment> getFragments() {

        List<Fragment> fragments = new ArrayList<>();
        fragments.add(ActivityFragment.newInstance("首页"));
        fragments.add(ClubFragment.newInstance("俱乐部"));
        fragments.add(PictureFragment.newInstance("晒图"));
        fragments.add(MatchFragment.newInstance("比赛"));
        fragments.add(TrainFragment.newInstance("训练"));
        fragments.add(MineFragment.newInstance("我的"));

        return fragments;
    }


    private void initBottomBar() {
    
        fragments = getFragments();
        setDefaultFragment();
        
        bottomNavigationBar
                .addItem(new BottomNavigationItem(R.drawable.bt_activity, "活动"))
                .addItem(new BottomNavigationItem(R.drawable.bt_club, "俱乐部"))
                .addItem(new BottomNavigationItem(R.drawable.bt_picture, "晒图"))
                .addItem(new BottomNavigationItem(R.drawable.bt_match, "比赛"))
                .addItem(new BottomNavigationItem(R.drawable.bt_train, "训练"))
                .addItem(new BottomNavigationItem(R.drawable.bt_mine, "我的"))
                .initialise();

        bottomNavigationBar.setTabSelectedListener(new BottomNavigationBar.OnTabSelectedListener() {
            @Override
            public void onTabSelected(int position) {
                if (fragments != null) {
                    if (position < fragments.size()) {
                        FragmentManager fm = getSupportFragmentManager();
                        FragmentTransaction ft = fm.beginTransaction();
                        Fragment fragment = fragments.get(position);
                        ft.replace(R.id.id_content, fragment);
                        ft.commitAllowingStateLoss();//选择性的提交，和commit有一定的区别，他不保证数据完整传输
                        //设置标题
                        String title = fragment.getArguments().getString("name");
                        toolbar.setTitle(title);
                    }
                }
            }

            @Override
            public void onTabUnselected(int position) {
            }

            @Override
            public void onTabReselected(int position) {
            }
        });
    }

效果图