最近闲来无事,想想滑动菜单好久没做了,写写熟悉一下
开启一个新的app,创建MainActivity和布局activity_main
在写布局文件的时候用到了ConstraintLayout控件(ConstraintLayout 为 约束布局,也有人把它称作 增强型的相对布局,由 2016 年 Google I/O 推出),ConstraintLayout有优化渲染布局的性能,如果在里面嵌套布局时
报错,请参考
TabLayout布局可以通过app:tabIndicatorColor="@color/color_blue"设置选中下划线颜色,设置成透明就是不显示,也可以通过app:tabIndicatorHeight="0dp"将高度设置为0dp
具体请看代码
TabLayout布局属性https://www.jianshu.com/p/23863e4bbea1
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout 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:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@mipmap/bg"
android:fitsSystemWindows="true">
<RelativeLayout
android:id="@+id/signin_title_ll"
android:layout_width="0dp"
android:layout_height="0dp"
android:background="@mipmap/title_bg"
tools:layout_constraintTop_creator="1"
tools:layout_constraintRight_creator="1"
app:layout_constraintRight_toRightOf="parent"
tools:layout_constraintLeft_creator="1"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintTop_toTopOf="parent">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@mipmap/logo_bg"
android:layout_centerVertical="true"
android:layout_marginLeft="10dp"/>
<TextView
android:id="@+id/signin_title_tv"
android:layout_width="wrap_content"
android:layout_height="49dp"
android:layout_centerInParent="true"
android:gravity="center"
android:text="签到系统"
android:textColor="@color/color_black"
android:textSize="16sp" />
</RelativeLayout>
<android.support.design.widget.TabLayout
android:id="@+id/signin_tabs"
android:layout_width="0dp"
android:layout_height="40dp"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintTop_toBottomOf="@+id/signin_title_ll"
app:tabIndicatorColor="@color/color_blue" 下划线颜色,设置成透明就是不显示
app:tabIndicatorHeight="0dp" 下划线不显示
app:tabBackground="@drawable/tab_background" 背景改变
app:tabSelectedTextColor="@color/color_white" 文字被选中颜色
app:tabTextColor="@color/color_1A" 文字不被选中颜色
android:padding="10dp" 背景图片内置距离
app:tabMode="scrollable"/>
<android.support.v4.view.ViewPager
android:id="@+id/viewpager"
android:layout_width="0dp"
android:layout_height="502dp"
android:layout_marginEnd="14dp"
android:layout_marginStart="14dp"
android:background="@mipmap/contain"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@+id/signin_tabs"
tools:layout_constraintLeft_creator="1"
tools:layout_constraintRight_creator="1"
android:layout_marginLeft="14dp"
android:layout_marginRight="14dp" />
</android.support.constraint.ConstraintLayout>
在drawable中添加tab_background.xml文件
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="@mipmap/title_sel" android:state_selected="true" />
<item android:drawable="@drawable/sel" android:state_focused="false" />
</selector>```
在drawable中添加sel.xml文件,这个就是为了设置透明属性
``` <?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<solid android:color="@color/color_tralate" />
</shape>```
布局就简单的完成了(注意添加依赖
compile 'com.android.support:design:25.3.1'
compile 'com.android.support:support-v4:25.3.1'
)
接下来就是Activity中的实现
public class MainActivity extends BaseActivity {
private TabLayout mSigninTabs;
private TextView mSigninTitle;
private ViewPager mViewPager;
private Context context = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);//为了让图片覆盖title而进行的自定义
context = this;
initData();
initView();
initViewPager();
}
private void initViewPager() {
List<String> titles = new ArrayList<>();
titles.add("第1节课");
titles.add("第2节课");
titles.add("第3节课");
titles.add("第4节课");
titles.add("第5节课");
titles.add("第6节课");
titles.add("第7节课");
titles.add("第8节课");
titles.add("第9节课");
titles.add("第10节课");
for (int i = 0; i < titles.size(); i++) {
//滑动菜单文字的写入
mSigninTabs.addTab(mSigninTabs.newTab().setText(titles.get(i)));
}
//加入相应的Fragment
List<Fragment> fragments = new ArrayList<>();
for (int i = 0; i < titles.size(); i++) {
if(i==0){
fragments.add(new ListsFragment());
}else {
fragments.add(new ListsFragment2());
}
}
FragmentAdapter mFragmentAdapteradapter = new FragmentAdapter(getSupportFragmentManager(), fragments, titles);
//给ViewPager设置适配器
mViewPager.setAdapter(mFragmentAdapteradapter);
// 将TabLayout和ViewPager关联起来。
mSigninTabs.setupWithViewPager(mViewPager);
// 给TabLayout设置适配器
mSigninTabs.setTabsFromPagerAdapter(mFragmentAdapteradapter);
}
private void initView() {
mSigninTitle = (TextView) findViewById(R.id.signin_title_tv);
mSigninTabs = (TabLayout) findViewById(R.id.signin_tabs);
mViewPager = (ViewPager) findViewById(R.id.viewpager);
}
private void initData() {
}
}
ListsFragment与ListsFragment2中的代码是一样的只是显示个布局
public class ListsFragment extends Fragment {
private View mView;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
mView = (View) inflater.inflate(R.layout.list_fragment, container, false);
return mView;
}
}
布局文件list_fragment
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout 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:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">
<TextView
android:id="@+id/lesson_detail_tv"
android:layout_width="150dp"
android:layout_height="26dp"
android:layout_marginTop="@dimen/px_70"
android:background="@mipmap/lesson_bg"
android:gravity="center"
android:text="课程详细信息"
android:textColor="@color/color_1A"
android:textSize="@dimen/px_36"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:layout_constraintLeft_creator="1"
tools:layout_constraintRight_creator="1" />
<RelativeLayout
android:id="@+id/lesson_detail_re1"
android:layout_width="0dp"
android:layout_height="30dp"
android:layout_marginTop="@dimen/px_90"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@id/lesson_detail_tv"
tools:layout_constraintLeft_creator="1"
tools:layout_constraintRight_creator="1">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="课程: 综合汉语一 \nCourse"
android:textColor="@color/color_1A"
android:layout_marginLeft="@dimen/px_140"
android:textSize="@dimen/px_40" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="@dimen/px_140"
android:layout_alignParentRight="true"
android:text="应到人数: 40\nno.ofpeople"
android:textColor="@color/color_1A"
android:textSize="@dimen/px_40" />
</RelativeLayout>
<RelativeLayout
android:id="@+id/lesson_detail_re2"
android:layout_width="0dp"
android:layout_height="30dp"
android:layout_marginTop="@dimen/px_50"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@id/lesson_detail_re1"
tools:layout_constraintLeft_creator="1"
tools:layout_constraintRight_creator="1">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="教室: TRB201 \nClassroom"
android:textColor="@color/color_1A"
android:layout_marginLeft="@dimen/px_140"
android:textSize="@dimen/px_40" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="@dimen/px_140"
android:layout_alignParentRight="true"
android:text="实到人数: 36\nActual no."
android:textColor="@color/color_1A"
android:textSize="@dimen/px_40" />
</RelativeLayout>
<RelativeLayout
android:id="@+id/lesson_detail_re3"
android:layout_width="0dp"
android:layout_height="30dp"
android:layout_marginTop="@dimen/px_50"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@id/lesson_detail_re2"
tools:layout_constraintLeft_creator="1"
tools:layout_constraintRight_creator="1">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="班级: 08春A1-01 \nClass"
android:textColor="@color/color_1A"
android:layout_marginLeft="@dimen/px_140"
android:textSize="@dimen/px_40" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="@dimen/px_140"
android:layout_alignParentRight="true"
android:text="迟到人数: 2 \nlate no."
android:textColor="@color/color_1A"
android:textSize="@dimen/px_40" />
</RelativeLayout>
<RelativeLayout
android:id="@+id/lesson_detail_re4"
android:layout_width="0dp"
android:layout_height="30dp"
android:layout_marginTop="@dimen/px_50"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@id/lesson_detail_re3"
tools:layout_constraintLeft_creator="1"
tools:layout_constraintRight_creator="1">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="教师: 张春光 \nTeacher"
android:textColor="@color/color_1A"
android:layout_marginLeft="@dimen/px_140"
android:textSize="@dimen/px_40" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="@dimen/px_140"
android:layout_alignParentRight="true"
android:text="未到人数: 4 \nAbsence no."
android:textColor="@color/color_1A"
android:textSize="@dimen/px_40" />
</RelativeLayout>
<TextView
android:id="@+id/lesson_detail_tv2"
android:layout_width="150dp"
android:layout_height="26dp"
android:layout_marginTop="@dimen/px_70"
android:background="@mipmap/lesson_bg"
android:gravity="center"
android:text="学生刷卡信息"
android:textColor="@color/color_1A"
android:textSize="@dimen/px_36"
app:layout_constraintTop_toBottomOf="@id/lesson_detail_re4"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
tools:layout_constraintLeft_creator="1"
tools:layout_constraintRight_creator="1" />
<RelativeLayout
android:id="@+id/students_detail_re5"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginTop="@dimen/px_132"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@id/lesson_detail_tv2"
tools:layout_constraintLeft_creator="1"
tools:layout_constraintRight_creator="1">
<ImageView
android:layout_width="81.33dp"
android:layout_height="111.33dp"
android:background="@mipmap/students_bg"
android:src="@mipmap/students"
android:padding="5dp"
android:textColor="@color/color_1A"
android:layout_marginLeft="@dimen/px_140"
android:textSize="@dimen/px_40" />
<TextView
android:id="@+id/name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="@dimen/px_534"
android:layout_alignParentLeft="true"
android:text="姓名: 小赵\nName"
android:textColor="@color/color_1A"
android:textSize="@dimen/px_40" />
<TextView
android:id="@+id/time"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="@dimen/px_534"
android:layout_alignParentLeft="true"
android:layout_below="@id/name"
android:layout_marginTop="@dimen/px_30"
android:text="签到时间: 08:29:36\nCheck in time"
android:textColor="@color/color_1A"
android:textSize="@dimen/px_40" />
<TextView
android:id="@+id/status"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="@dimen/px_534"
android:layout_alignParentLeft="true"
android:layout_below="@id/time"
android:layout_marginTop="@dimen/px_30"
android:text="刷卡状态: 正常\nSwipe status"
android:textColor="@color/color_1A"
android:textSize="@dimen/px_40" />
</RelativeLayout>
</android.support.constraint.ConstraintLayout>
这个只是简单的布局实现,还有很多地方需要优化
这个简单的滑动菜单就实现了,根据需要可以添加不停的Fragment内容