private void createToolbar() {
        mToolbar = (Toolbar) findViewById(R.id.nav_top_bar);
        setSupportActionBar(mToolbar);
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
        mToolbar.setNavigationOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                onBackPressed();
            }
        });
        getSupportActionBar().setDisplayShowTitleEnabled(false);
    }
An Activity to show raw image by holding {@link BoxingViewFragment}.

@author ChenSL
boxing-impl/src/main/java/com/bilibili/boxing_impl/ui/BoxingViewActivity.java