Android에서 조각 숨기기 표시

Android에서 조각 숨기기 표시

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2 개의 조각이 포함 된 응용 프로그램을 개발 중이며 필요에 따라 숨기기를 표시하고 싶습니다. 다음 코드에는 내 문제에 대한 간단한 예가 있습니다. 이 간단한 Fragmentactivity에는 버튼 1 개와 listfragment 1 개가 있습니다.

이 간단한 예제는 완벽하게 작동합니다. 그러나 나는 show hide 조각에 만족하지 않습니다. layout.setVisibility (View.GONE); 코드에서 ft.hide (f); 조각을 숨기지 않습니다. 사실 우리는 조각을 숨기지 않고 컨테이너를 숨기고 있습니다.

내 질문은, 이것이 조각 숨기기를 표시하는 방법입니까? 그렇지 않다면 많은 사람들이이 문제에 직면하고 있기 때문에 프래그먼트를 숨기고 표시하는 방법을 테스트 된 예제로 설명하십시오.

 public class MainActivity extends FragmentActivity implements OnClickListener {

        Fragment1 f;
        Button b;
        LinearLayout layout;
        Fragment myf;
        @Override
        public void onCreate(Bundle savedInstanceState){
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
            b = (Button) findViewById(R.id.button1);
            layout = (LinearLayout) findViewById(R.id.ll);
            f = new Fragment1();
        }

        @Override
        public void onClick(View v) {

            FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
            ft.setCustomAnimations(android.R.animator.fade_in, android.R.animator.fade_out);

            if (f.isHidden()) {
                ft.show(f);
                layout.setVisibility(View.VISIBLE);
                b.setText("Hide");
            } else {
                ft.hide(f);
                b.setText("Show");
                layout.setVisibility(View.GONE);
            }
            ft.commit();
            // TODO Auto-generated method stub
        }

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컨테이너의 가시성 플래그를 엉망으로 만들지 마십시오. FragmentTransaction.hide / show가 내부적으로 수행합니다.

따라서이를 수행하는 올바른 방법은 다음과 같습니다.

FragmentManager fm = getFragmentManager();
fm.beginTransaction()
          .setCustomAnimations(android.R.animator.fade_in, android.R.animator.fade_out)
          .show(somefrag)
          .commit();

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OR if you are using android.support.v4.app.Fragment

 FragmentManager fm = getSupportFragmentManager();
 fm.beginTransaction()
          .setCustomAnimations(android.R.anim.fade_in, android.R.anim.fade_out)
          .show(somefrag)
          .commit();

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In addittion, you can do in a Fragment (for example when getting server data failed):

 getView().setVisibility(View.GONE);

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Hi you do it by using this approach, all fragments will remain in the container once added initially and then we are simply revealing the desired fragment and hiding the others within the container.

// Within an activity
private FragmentA fragmentA;
private FragmentB fragmentB;
private FragmentC fragmentC;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    if (savedInstanceState == null) {
        fragmentA = FragmentA.newInstance("foo");
        fragmentB = FragmentB.newInstance("bar");
        fragmentC = FragmentC.newInstance("baz");
    }
}


// Replace the switch method
protected void displayFragmentA() {
    FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
    if (fragmentA.isAdded()) { // if the fragment is already in container
        ft.show(fragmentA);
    } else { // fragment needs to be added to frame container
        ft.add(R.id.flContainer, fragmentA, "A");
    }
    // Hide fragment B
    if (fragmentB.isAdded()) { ft.hide(fragmentB); }
    // Hide fragment C
    if (fragmentC.isAdded()) { ft.hide(fragmentC); }
    // Commit changes
    ft.commit();
}

Please see https://github.com/codepath/android_guides/wiki/Creating-and-Using-Fragments for more info. I hope I get to help anyone. Even if it this is an old question.

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public void showHideFragment(final Fragment fragment){

    FragmentTransaction ft = getFragmentManager().beginTransaction();
    ft.setCustomAnimations(android.R.animator.fade_in,
                    android.R.animator.fade_out);

    if (fragment.isHidden()) {
        ft.show(fragment);
        Log.d("hidden","Show");
    } else {
        ft.hide(fragment);
        Log.d("Shown","Hide");                        
    }

    ft.commit();
}

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Try this:

MapFragment mapFragment = (MapFragment)getFragmentManager().findFragmentById(R.id.mapview);
mapFragment.getView().setVisibility(View.GONE);

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From my code, comparing to above solution, the simplest way is to define a layout which contains the fragment, then you could hide or unhide the fragment by controlling the layout attribute which is align with the general way of view. No additional code needed in this case and the additional deployment attributes of the fragment could be moved to the outer layout.

<LinearLayout style="@style/StHorizontalLinearView"
    >

    <fragment
        android:layout_width="match_parent"
        android:layout_height="390dp"
        android:layout_alignParentTop="true"
        />

</LinearLayout>

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This worked for me

FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
        if(tag.equalsIgnoreCase("dashboard")){

            DashboardFragment dashboardFragment = (DashboardFragment)
                    fragmentManager.findFragmentByTag("dashboard");
            if(dashboardFragment!=null) ft.show(dashboardFragment);

            ShowcaseFragment showcaseFragment = (ShowcaseFragment)
                    fragmentManager.findFragmentByTag("showcase");
            if(showcaseFragment!=null) ft.hide(showcaseFragment);

        } else if(tag.equalsIgnoreCase("showcase")){
            DashboardFragment dashboardFragment = (DashboardFragment)
                    fragmentManager.findFragmentByTag("dashboard");
            if(dashboardFragment!=null) ft.hide(dashboardFragment);

            ShowcaseFragment showcaseFragment = (ShowcaseFragment)
                    fragmentManager.findFragmentByTag("showcase");
            if(showcaseFragment!=null) ft.show(showcaseFragment);
        }

        ft.commit();

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the answers here are correct and i liked @Jyo the Whiff idea of a show and hide fragment implementation except the way he has it currently would hide the fragment on the first run so i added a slight change in that i added the isAdded check and show the fragment if its not already

public void showHideCardPreview(int id) {
    FragmentManager fm = getSupportFragmentManager();
    Bundle b = new Bundle();
    b.putInt(Constants.CARD, id);
    cardPreviewFragment.setArguments(b);
    FragmentTransaction ft = fm.beginTransaction()
        .setCustomAnimations(android.R.anim.fade_in, android.R.anim.fade_out);
    if (!cardPreviewFragment.isAdded()){
        ft.add(R.id.full_screen_container, cardPreviewFragment);
        ft.show(cardPreviewFragment);
    } else {
        if (cardPreviewFragment.isHidden()) {
            Log.d(TAG,"++++++++++++++++++++ show");
            ft.show(cardPreviewFragment);
        } else {
            Log.d(TAG,"++++++++++++++++++++ hide");
            ft.hide(cardPreviewFragment);
        }
    }

    ft.commit();
} 

참고URL : https://stackoverflow.com/questions/14347588/show-hide-fragment-in-android