[ANDROID] ListView 만들기

MainActivity

package com.example.jaeyeonlee.cambus; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.widget.AdapterView; import android.widget.ArrayAdapter; import android.widget.ListAdapter; import android.widget.ListView; import android.widget.Toast; import java.util.ArrayList; public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main_page); String[] schoolName = {"YongIn University","Inha University"}; ListView listView=(ListView)findViewById(R.id.schoolListView); ArrayList<SchoolListViewItemActivity> data=new ArrayList<>(); SchoolListViewItemActivity yongin=new SchoolListViewItemActivity("YongIn University",R.drawable.yongin); SchoolListViewItemActivity inha=new SchoolListViewItemActivity("Inha University",R.drawable.inha); data.add(yongin); for (int i=0;i<50;i++) data.add(inha); SchoolListViewItemAdapterActivity adapter=new SchoolListViewItemAdapterActivity(this,R.layout.school_listview_item,data); listView.setAdapter(adapter); } }

SchoolListViewItemActivity

package com.example.jaeyeonlee.cambus; import android.content.Context; import android.support.annotation.NonNull; import android.text.Layout; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.ArrayAdapter; import android.widget.ImageView; import android.widget.TextView; /** * Created by jaeyeonlee on 12/3/17. */ public class SchoolListViewItemActivity { String SchoolName; int SchoolLogo; public SchoolListViewItemActivity(String SchoolName, int SchoolLogo) { this.SchoolName= SchoolName; this.SchoolLogo=SchoolLogo; } public void setSchoolName(String SchoolName) { this.SchoolName = SchoolName; } public void setSchoolLogo(int SchoolLogo) { this.SchoolLogo = SchoolLogo; } public String getSchoolName() { return SchoolName; } public int getSchoolLogo() { return SchoolLogo; } }

SchoolListViewItemAdapterActivity

package com.example.jaeyeonlee.cambus; import android.content.Context; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.BaseAdapter; import android.widget.ImageView; import android.widget.TextView; import java.util.ArrayList; /** * Created by jaeyeonlee on 12/3/17. */ public class SchoolListViewItemAdapterActivity extends BaseAdapter{ private LayoutInflater inflater; private ArrayList<SchoolListViewItemActivity> data; private int layout; public SchoolListViewItemAdapterActivity(Context context, int layout, ArrayList<SchoolListViewItemActivity> data){ this.inflater=(LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); this.data=data; this.layout=layout; } @Override public int getCount(){return data.size();} @Override public String getItem(int position){return data.get(position).getSchoolName();} @Override public long getItemId(int position){return position;} @Override public View getView(int position, View convertView, ViewGroup parent){ if(convertView==null){ convertView=inflater.inflate(layout,parent,false); } SchoolListViewItemActivity listviewitem=data.get(position); ImageView icon=(ImageView)convertView.findViewById(R.id.schoolLogoImageView); icon.setImageResource(listviewitem.getSchoolLogo()); TextView name=(TextView)convertView.findViewById(R.id.schoolNameTextView); name.setText(listviewitem.getSchoolName()); return convertView; } }

school_listview_item.xml

<?xml version="1.0" encoding="utf-8"?> <android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent"> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="horizontal" android:paddingLeft="30dp" android:paddingTop="15dp" android:paddingBottom="15dp"> <LinearLayout android:id="@+id/image_layout" android:layout_width="wrap_content" android:layout_height="match_parent" android:gravity="center" android:orientation="vertical" > <ImageView android:id="@+id/schoolLogoImageView" android:layout_width="30dp" android:layout_height="30dp"/> </LinearLayout> <LinearLayout android:layout_width="match_parent" android:layout_height="match_parent" android:gravity="center_vertical" android:orientation="vertical" > <TextView android:id="@+id/schoolNameTextView" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Text1" android:textSize="23sp" android:paddingLeft="30sp"> </TextView> </LinearLayout> </LinearLayout> </android.support.constraint.ConstraintLayout>

main_page.xml

<?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" tools:context="com.example.jaeyeonlee.cambus.MainActivity"> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" android:background="#ffffff" android:gravity="center_horizontal" android:paddingTop = "30px" android:paddingBottom = "30px"> <TextView android:id="@+id/chooseSchoolTextView" android:layout_width="340dp" android:layout_height="40dp" android:text="학교 선택" android:textSize="30sp" android:gravity="center_horizontal"/> <ListView android:id="@+id/schoolListView" android:layout_width="fill_parent" android:layout_height="fill_parent" android:paddingTop = "50px" android:layout_below="@+id/schoolListView" android:layout_gravity="center_horizontal" /> </LinearLayout> </android.support.constraint.ConstraintLayout>