IT 기술 따라잡기

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="horizontal" >
    <LinearLayout
        android:id="@+id/frag1_container"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:layout_weight="1"
        android:orientation="horizontal"/>
    <LinearLayout
        android:id="@+id/frag2_container"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:layout_weight="0"
        android:orientation="horizontal"/>
</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:background="#0000FF"  >
    <ListView
        android:id="@+id/products_list"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:drawSelectorOnTop="false" />
</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >   
    <TextView 
        android:id="@+id/selectedopt"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text=" Please select a product "
        android:textSize="@dimen/text_size"
        android:textStyle="bold"  />  
</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:padding="6dp"
      android:textSize="@dimen/text_size"
      android:textStyle="bold" />
     

FragmentManager fragmentManager = getFragmentManager();

FragmentTransaction fragmentTransaction = fragmentMaanger.beginTransaction();

private static final String TAG1 = "1";
FragmentManager fragmentManager = getFragmentManager()
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
Fragment1Activity fragment = new FragmentActivity();
fragmentTransaction.add(R.id.fragment_container, fragment, TAG1);
fragmentTransaction.commit();

private static final String TAG1 = "1";
FragmentManager fragmentManager = getFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
if(null == fragmentManager.findFragmentByTag(TAG1)){
    Fragment1Activity fragment = new Fragment1Activity();
    fragmentTransaction.add(R.id.fragment_container, fragment, TAG1);
}
fragmentTransaction.commit();

private static final String TAG2 = "2";
fragmentTransaction.replace(R.id.fragment_container, fragment2, TAG2);

FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
Fragment fragment = fragmentManager.findFragmentById(R.id.fragment);
fragmentTransaction.remove(fragment);
fragmentTransaction.commit();

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="horizontal" >
    <fragment
        android:name="com.androidtablet.foregroundfragmentapp.Fragment1Activity"
        android:id="@+id/fragment1"
        android:layout_weight="1"
        android:layout_width="wrap_content"
        android:layout_height="match_parent" />
 <!--    <fragment
        android:name="com.androidtablet.foregroundfragmentapp.Fragment2Activity"
        android:id="@+id/fragment2"
        android:layout_weight="0"
        android:layout_width="wrap_content"
        android:layout_height="match_parent" /> -->
</LinearLayout>

public class Fragment1Activity extends Fragment {
    OnOptionSelectedListener  myListener;
    boolean large, xlarge;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        Context c = getActivity().getApplicationContext();
        View vw = inflater.inflate(R.layout.fragment1, container, false);
        String[] products={"Camera", "Laptop", "Watch",  "Smartphone", "Television"};
        large = ((getResources().getConfiguration().screenLayout  & Configuration.SCREENLAYOUT_SIZE_MASK) == Configuration.SCREENLAYOUT_SIZE_LARGE);             
        xlarge =((getResources().getConfiguration().screenLayout  & Configuration.SCREENLAYOUT_SIZE_MASK) == Configuration.SCREENLAYOUT_SIZE_XLARGE);      
        ListView productsList = (ListView) vw.findViewById(R.id.products_list);
        ArrayAdapter<String> arrayAdpt= new ArrayAdapter<String> (c, R.layout.list_item, products);
        productsList.setAdapter(arrayAdpt);        
        productsList.setOnItemClickListener(new OnItemClickListener(){
            @Override
            public void onItemClick(AdapterView<?> parent, View v, int position, long id){                 
                if (getResources().getConfiguration().orientation == Configuration.ORIENTATION_LANDSCAPE || large || xlarge){                                      
                    myListener.onOptionSelected(((TextView)  v).getText().toString());  
                 } else {
                    Intent intent = new Intent(getActivity().getApplicationContext(),  DisplayItemActivity.class);
                    intent.putExtra("item", ((TextView) v).getText().toString());
                    startActivity(intent);
                 }
            }
        });
        return vw;
    }
   
    public interface OnOptionSelectedListener {
        public void onOptionSelected(String message);
    }

    @Override
    public void onAttach(Activity activity) {
        super.onAttach(activity);
        try {
            myListener = (OnOptionSelectedListener) activity;
        } catch (ClassCastException e) {
            throw new ClassCastException(activity.toString() + "  must implement OnItemClickListener");
        }
    }   
}

public class DisplayItemActivity extends Activity{
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        if (getResources().getConfiguration().orientation == Configuration.ORIENTATION_LANDSCAPE) {
            finish();
            return;
        }
        setContentView(R.layout.fragment2);
        Bundle extras = getIntent().getExtras();
        if (extras != null) {
            String selectedItem = extras.getString("item");
            TextView selectedOpt = (TextView) findViewById(R.id.selectedopt);
            selectedOpt.setText("You have selected "+selectedItem);
        }
    }
}