今天,我们就来以上面这张图为原型,来实现这样的功能界面
实现步骤
1.界面分析
2.界面布局搭建
首先将界面的大致布局编写出来
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:layout_gravity="center_horizontal"
android:textStyle="bold"
android:layout_margin="20dp"
android:textSize="18sp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="选择您感兴趣的标签"/>
<androidx.recyclerview.widget.RecyclerView
android:id="@+id/label_list"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"/>
<Button
android:id="@+id/commit"
android:layout_margin="20dp"
android:textSize="16sp"
android:textColor="#fff"
android:background="@drawable/shape_commit_bg"
android:text="提 交"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
</LinearLayout>
image.png
3.多条目布局分析
4.条目布局的编写 image.png
<?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:orientation="vertical"
android:padding="10dp"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:text="男生推荐"
android:textSize="16sp"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
<androidx.recyclerview.widget.RecyclerView
android:padding="10dp"
android:id="@+id/label"
tools:listitem="@layout/item_label"
android:layout_width="match_parent"
android:layout_height="wrap_content"
tools:spanCount="4"
tools:layoutManager="GridLayoutManager"
tools:itemCount="7"/>
</LinearLayout>
image.png
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_gravity="center"
android:layout_margin="5dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<TextView
android:paddingBottom="3dp"
android:paddingTop="3dp"
android:paddingRight="10dp"
android:paddingLeft="10dp"
android:background="@drawable/shape_label_bg"
android:text="玄幻"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
</LinearLayout>
5.主布局及适配器编写
class XingQuActivity : Activity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_xingqu)
label_list.layoutManager = LinearLayoutManager(this)
label_list.adapter = LabelAdapter()
}
class LabelAdapter : RecyclerView.Adapter<LabelAdapter.LabelViewHolder>() {
lateinit var context: Context
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): LabelViewHolder {
context = parent.context
val view = LayoutInflater.from(context).inflate(R.layout.item_labels_layout, parent, false)
return LabelViewHolder(view)
}
override fun getItemCount(): Int {
return 3
}
override fun onBindViewHolder(holder: LabelViewHolder, position: Int) {
holder.labelList.layoutManager = GridLayoutManager(context,4)
holder.labelList.adapter = LabelsAdapter()
}
class LabelViewHolder(view: View) :RecyclerView.ViewHolder(view){
val labelList = view.findViewById<RecyclerView>(R.id.label)
}
class LabelsAdapter : RecyclerView.Adapter<LabelsAdapter.LabelsViewHolder>() {
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): LabelsViewHolder {
val view = LayoutInflater.from(parent.context).inflate(R.layout.item_label, parent, false)
return LabelsViewHolder(view)
}
override fun getItemCount(): Int {
return 5
}
override fun onBindViewHolder(holder: LabelsViewHolder, position: Int) {
}
class LabelsViewHolder(view: View) :RecyclerView.ViewHolder(view){
}
}
}
}
6.最终效果
这里只是实现功能,界面大家可以根据UI的设计图进行修改优化
Screenshot_2018-11-30-11-23-45-038_com.clb.js.png
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