안드로이드 ListView, GridView 예제 따라하기

- EditText에 글을 치고 추가하면 리스트가 추가되는 간단한 예제이다.
- 해당 리스트 뷰를 클릭하면 Intent로 값을 넘겨서 실행 시켜보자.

-Java 소스
public class Ex07_ListView1Activity extends Activity implements
  OnItemClickListener, OnClickListener {
 /** Called when the activity is first created. */
 ArrayList<String> s;
 ListView lv;
 GridView grid;
 ArrayAdapter<String> adapter;

 @Override
 public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);

  setContentView(R.layout.main);
  s = new ArrayList<String>();
  s.add("itemt0");
  s.add("itemt1");

  adapter = new ArrayAdapter<String>(this,
    android.R.layout.simple_list_item_1, s);

  lv = (ListView) this.findViewById(R.id.listview); //리스트뷰 뿌리기
  lv.setAdapter(adapter);
  lv.setOnItemClickListener(this);

  grid = (GridView) this.findViewById(R.id.grid1); // 그리드뷰 뿌리기
  grid.setAdapter(adapter);
  grid.setOnItemClickListener(this);

  Button bt = (Button) this.findViewById(R.id.button1);
  bt.setOnClickListener(this);

 }

 public void onClick(View arg0) {
  // TODO Auto-generated method stub
  if (arg0.getId() == R.id.button1) {
   EditText et = (EditText) this.findViewById(R.id.edittext1);
   String s11 = et.getText().toString();
   s.add(s11);
   adapter.notifyDataSetChanged();
   // lv.setAdapter(adapter);
  }
 }

 @Override
 public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
  // TODO Auto-generated method stub
  // Toast.makeText(this, s.get(arg2), Toast.LENGTH_LONG).show();

  Intent intent = new Intent(this, MyPrint.class); // 해당 리스트를 눌렸을때 Intent넘기기
  intent.putExtra("param1", s.get(arg2)); //s.get(arg2)가 눌렸을때의 번호
  startActivity(intent);
 }

}
-------------------------------------------------------------------------------------------------------
public class MyPrint extends Activity {
 @Override
 protected void onCreate(Bundle savedInstanceState) {
  // TODO Auto-generated method stub
  super.onCreate(savedInstanceState);
  setContentView(R.layout.myprint);
  
  Intent intent = getIntent();
  String s = intent.getStringExtra("param1");
  
  TextView text = (TextView)this.findViewById(R.id.text1print);
  text.setText(s);
  
 }

}

-xml 소스
//main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal" >

        <EditText
            android:id="@+id/edittext1"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:hint="추가하세요" />

        <Button
            android:id="@+id/button1"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_weight="3"
            android:text="추가" />
    </LinearLayout>

    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:orientation="vertical" >

        <ListView
            android:id="@+id/listview"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content" >
        </ListView>

        <GridView
            android:id="@+id/grid1"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:numColumns="auto_fit" >
        </GridView>
    </LinearLayout>

</LinearLayout>
-------------------------------------------------------------------------------------------------------
myprintln.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:orientation="vertical"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent">
  <TextView
 android:id="@+id/text1print"
 android:layout_width="wrap_content"
 android:layout_height="fill_parent"
 />
</LinearLayout>

-실행화면