super.oncreate (savedinstancestate;
setcontentview(r.layout.about;
//toolbar.set logo (r.mi pmap.IC _ launcher ); //图标设置
toolBar.setTitle ('关于软件); //设置主标题
setsupportactionbar(toolbar;
getSupportActionBar ().setdisplayhomeasupenabled ) true;
}
//close app
@Override
publicbooleanonoptionsitemselected { menuitem item }
if (item.get itemid (==Android.r.id.home )。
onBackPressed (;
返回真;
}
return super.onoptionsitemselected (item;
}
照片是用简单的书APP发的