[Android-Activity]#Android

activity_simple_fragment.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true"
    android:orientation="vertical"
    >

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

    <FrameLayout
        android:id="@+id/fl_fragment_container"
        android:layout_width="match_parent"
        android:layout_height="match_parent"/>

</LinearLayout>

inflate_tab.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:minHeight="48dp"
    android:orientation="vertical"
    android:gravity="center_vertical">

    <TextView
        android:id="@+id/tv_tab_title"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:gravity="center"
        android:textColor="@drawable/selector_color_white_light"
        android:textSize="@dimen/textSizeMedium"
        tools:text="已预订" />

    <TextView
        android:id="@+id/tv_tab_amount"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:layout_marginTop="5dp"
        android:background="@drawable/shape_rect_solid_white_radius_medium"
        android:gravity="center"
        android:includeFontPadding="false"
        android:minWidth="14dp"
        android:paddingLeft="4dp"
        android:paddingRight="4dp"
        android:text="@string/default_int_number"
        android:textColor="@color/textColorDarkBlue"
        android:textSize="@dimen/textSizeSmall" />

</LinearLayout>

KeepFontScaleActivity.java

// 修改系统字体大小
public abstract class KeepFontScaleActivity extends AppCompatActivity {
	@Override
    public void onConfigurationChanged(Configuration newConfig) {
        if (newConfig.fontScale != 1)//非默认值
            getResources();
        super.onConfigurationChanged(newConfig);
    }

    @Override
    public Resources getResources() {
        Resources res = super.getResources();
        if (res.getConfiguration().fontScale != 1) {//非默认值
            Configuration newConfig = new Configuration();
            newConfig.setToDefaults();//设置默认
            res.updateConfiguration(newConfig, res.getDisplayMetrics());
        }
        return res;
    }
}

menu_more.xml

<!--在menu文件夹下添加该文件-->
<?xml version="1.0" encoding="utf-8"?>
<menu
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    >

    <item
        android:id="@+id/action_more"
        android:title="@string/more"
        android:orderInCategory="100"
        app:showAsAction="always"
        android:icon="@drawable/ic_menu_more"
        />
</menu>

MenuActivity.java

public class MenuActivity extends AppCompatActivity {

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

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()){
            case R.id.action_more:
               	// do something
                return true;
            default:
                return super.onOptionsItemSelected(item);
        }
    }

}

SimpleFragmentActivity.java

/**
 * Created by tendoasan on 2017/11/6.
 * 带 Toolbar，托管单个 Fragment
 */
public abstract class SimpleFragmentActivity extends AppCompatActivity {

    @BindView(R.id.toolbar)
    Toolbar mToolbar;

    @BindView(R.id.tv_toolbar_title)
    TextView mTvToolbarTitle;

    /*@LayoutRes
    protected abstract int getLayoutId();*/

    @LayoutRes
    protected int getLayoutId(){
        // TODO 子类必须覆写此方法
        return R.layout.activity_simple_fragment;
    }

    protected void onViewCreated(){
        setupToolbar();
        addFragment();
    }

    private void setupToolbar(){
        setSupportActionBar(mToolbar);
        mTvToolbarTitle.setText(getToolbarTitleStr());
        mTvToolbarTitle.setTextSize(20);

        ActionBar actionBar = getSupportActionBar();
        if (actionBar != null){
            actionBar.setDisplayShowTitleEnabled(false);
            actionBar.setDisplayHomeAsUpEnabled(true);
            actionBar.setHomeAsUpIndicator(R.drawable.ic_arrow_back);
        }

        mToolbar.setVisibility(isShowToolbar() ? View.VISIBLE : View.GONE);
    }

    protected void setToolbarTitle(String title){

        if (TextUtils.isEmpty(title)) return;

        if (mTvToolbarTitle != null){
            mTvToolbarTitle.setText(title);
        }
    }

    protected boolean isShowToolbar(){
        return true;
    }

    protected String getToolbarTitleStr(){
        return getString(R.string.no_info);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
            case android.R.id.home:
                onBackPressed();
                break;
        }
        return true;
    }

    private void addFragment(){
        FragmentManager fm = getSupportFragmentManager();
        Fragment fragment = fm.findFragmentById(R.id.fl_fragment_container);
        if (fragment == null){
            fragment = createFragment();
            fm.beginTransaction()
                    .add(R.id.fl_fragment_container, fragment)
                    .commit();
        }
    }

    protected void initEventAndData(){

    }

    protected abstract Fragment createFragment();

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        // 设置布局
        setContentView(getLayoutId());

        ButterKnife.bind(this);

        // 接收事件和初始化数据
        initEventAndData();

        // 实例化子视图
        onViewCreated();

    }

    protected Fragment getFragment(){
        FragmentManager fm = getSupportFragmentManager();
        return fm.findFragmentById(R.id.fl_fragment_container);
    }

    public Toolbar getToolbar() {
        return mToolbar;
    }
}

SimpleTabActivity.java

public abstract class SimpleTabActivity extends AppCompatActivity {

    @BindView(R.id.toolbar)
    Toolbar mToolbar;

    @BindView(R.id.tv_toolbar_title)
    TextView mTvToolbarTitle;

    @BindView(R.id.tab_layout)
    TabLayout mTabLayout;

    @BindView(R.id.view_pager)
    ViewPager mViewPager;

    private String[] mTabTitles;
    private ArrayList<TextView> mTabCountViewsList;

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        // 设置布局
        setContentView(getLayoutId());

        ButterKnife.bind(this);

        // 接收事件和初始化数据
        initEventAndData();

        // 实例化子视图
        onViewCreated();

    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
            case android.R.id.home:
                onBackPressed();
                break;
        }
        return true;
    }

    @LayoutRes
    protected int getLayoutId() {
        // TODO 子类必须覆写此方法
        return R.layout.activity_simple_tab;
    }

    protected void initEventAndData() {
        mTabCountViewsList = new ArrayList<>();
        mTabTitles = getTabTitles();
    }

    protected void onViewCreated() {

        setupToolbar();

        mViewPager.setAdapter(getFragmentPagerAdapter());
        mViewPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
            @Override
            public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {

            }

            @Override
            public void onPageSelected(int position) {
                // TODO 通知 fragment 刷新
                onPageChanged(position);
            }

            @Override
            public void onPageScrollStateChanged(int state) {

            }
        });

        mTabLayout.setupWithViewPager(mViewPager);
        mTabLayout.setTabMode(TabLayout.MODE_FIXED);

        mTabCountViewsList.clear();
        // 初始化Tab标题与数量视图，添加数量视图引用
        for (int i = 0; i < mTabLayout.getTabCount(); i++){
            TabLayout.Tab tab = mTabLayout.getTabAt(i);
            if (tab != null){

                View customView = LayoutInflater.from(SimpleTabActivity.this)
                        .inflate(R.layout.inflate_tab, mTabLayout, false);
                // 标题
                TextView tv_tab_title = (TextView) customView.findViewById(R.id.tv_tab_title);
                tv_tab_title.setText(mTabTitles[i]);
                // 数量
                TextView tv_tab_count = (TextView) customView.findViewById(R.id.tv_tab_amount);
                tv_tab_count.setVisibility(isShowCount() ? View.VISIBLE : View.GONE);
                mTabCountViewsList.add(tv_tab_count);

                tab.setCustomView(customView);

            }
        }

        mTabLayout.addOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
            @Override
            public void onTabSelected(TabLayout.Tab tab) {
                View customView = tab.getCustomView();
                if (customView != null){
                    TextView tv_tab_title = (TextView) customView.findViewById(R.id.tv_tab_title);
                    tv_tab_title.setSelected(true);
                }

                mViewPager.setCurrentItem(tab.getPosition());
            }

            @Override
            public void onTabUnselected(TabLayout.Tab tab) {
                View customView = tab.getCustomView();
                if (customView != null){
                    TextView tv_tab_title = (TextView) customView.findViewById(R.id.tv_tab_title);
                    tv_tab_title.setSelected(false);
                }
            }

            @Override
            public void onTabReselected(TabLayout.Tab tab) {

            }
        });

    }

    protected void onPageChanged(int position){

    }

    private void setupToolbar() {
        setSupportActionBar(mToolbar);
        mTvToolbarTitle.setText(getToolbarTitleStr());
        mTvToolbarTitle.setTextSize(20);

        ActionBar actionBar = getSupportActionBar();
        if (actionBar != null) {
            actionBar.setDisplayShowTitleEnabled(false);
            actionBar.setDisplayHomeAsUpEnabled(true);
            actionBar.setHomeAsUpIndicator(R.drawable.ic_arrow_back);
        }

        mToolbar.setVisibility(isShowToolbar() ? View.VISIBLE : View.GONE);
    }

    protected String getToolbarTitleStr() {
        return getString(R.string.no_info);
    }

    protected boolean isShowToolbar() {
        return true;
    }

    protected abstract String[] getTabTitles();

    protected abstract FragmentPagerAdapter getFragmentPagerAdapter();

    protected boolean isShowCount(){
        return true;
    }

    protected void updateTabCountViews(List<Integer> counts){

        if (counts == null || counts.size() == 0) return;

        if (mTabCountViewsList != null
                && mTabCountViewsList.size() != 0
                && counts.size() == mTabCountViewsList.size()){
            for (int i = 0; i < mTabCountViewsList.size(); i++){
                mTabCountViewsList.get(i).setText(NumUtils.getCountDisplay(counts.get(i)));
            }
        }
    }

    public Toolbar getToolbar() {
        return mToolbar;
    }
}

toolbar_default.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.Toolbar
    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:id="@+id/toolbar"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="?attr/colorPrimaryDark"
    android:fitsSystemWindows="true"
    android:minHeight="?attr/actionBarSize"
    app:titleTextColor="@android:color/white"
    app:contentInsetStartWithNavigation="0dp"
    >

    <TextView
        android:id="@+id/tv_toolbar_title"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_vertical"
        android:layout_marginStart="20dp"
        tools:text="@string/no_info"
        android:textColor="@color/textColorWhite"
        android:textSize="@dimen/textSizeBig"
        android:text="@string/no_info"
        />

</android.support.v7.widget.Toolbar>