분리 된 뷰에서이 애니메이터를 시작할 수 없습니다!

분리 된 뷰에서이 애니메이터를 시작할 수 없습니다! 효과를 드러내다

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내 응용 프로그램에서 표시 효과를 만들려고 노력하고 있지만 성공하지 못했습니다. 내가 원하는 것은 조각을 열 때 cardview를 공개하는 것입니다. 지금까지 시도한 것은 다음과 같습니다.

private void toggleInformationView(View view) {
        infoContainer = view.findViewById(R.id.contact_card);

        int cx = (view.getLeft() + view.getRight()) / 2;
        int cy = (view.getTop() + view.getBottom()) / 2;
        float radius = Math.max(infoContainer.getWidth(), infoContainer.getHeight()) * 2.0f;

        if (infoContainer.getVisibility() == View.INVISIBLE) {
            infoContainer.setVisibility(View.VISIBLE);
            ViewAnimationUtils.createCircularReveal(infoContainer, cx, cy, 0, radius).start();
        } else {
            Animator reveal = ViewAnimationUtils.createCircularReveal(
                    infoContainer, cx, cy, radius, 0);
            reveal.addListener(new AnimatorListenerAdapter() {
                @Override
                public void onAnimationEnd(Animator animation) {
                    infoContainer.setVisibility(View.INVISIBLE);
                }
            });
            reveal.start();
        }
    }

그리고 onCreateView나는 방법을 시작했습니다.

toggleInformationView(view);

이것은 cardview입니다.

<android.support.v7.widget.CardView
        xmlns:card_view="http://schemas.android.com/apk/res-auto"
        android:layout_width="match_parent"
        android:id="@+id/contact_card"
        android:visibility="invisible"
        android:layout_height="wrap_content"
        android:layout_margin="5dp"
        android:elevation="4dp"
        android:foreground="?android:attr/selectableItemBackground"
        android:orientation="vertical"
        android:padding="10dp"
        card_view:cardCornerRadius="2dp" >

        <LinearLayout   
            android:orientation="vertical"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            >
            <ImageView
                android:id="@+id/bg_contact"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_centerHorizontal="true"
                android:layout_weight="0"
                android:adjustViewBounds="true"
                android:scaleType="centerCrop"
                android:src="@drawable/banner" />

        </LinearLayout>
    </android.support.v7.widget.CardView>

및 logcat :

11-08 17:25:48.541: E/AndroidRuntime(26925): java.lang.IllegalStateException: Cannot start this animator on a detached view!
11-08 17:25:48.541: E/AndroidRuntime(26925):    at android.view.RenderNode.addAnimator(RenderNode.java:817)
11-08 17:25:48.541: E/AndroidRuntime(26925):    at android.view.RenderNodeAnimator.setTarget(RenderNodeAnimator.java:277)
11-08 17:25:48.541: E/AndroidRuntime(26925):    at android.view.RenderNodeAnimator.setTarget(RenderNodeAnimator.java:261)
11-08 17:25:48.541: E/AndroidRuntime(26925):    at android.animation.RevealAnimator.<init>(RevealAnimator.java:37)
11-08 17:25:48.541: E/AndroidRuntime(26925):    at android.view.ViewAnimationUtils.createCircularReveal(ViewAnimationUtils.java:48)
11-08 17:25:48.541: E/AndroidRuntime(26925):    at com.as.asapp.TFragment.toggleInformationView(TFragment.java:64)
11-08 17:25:48.541: E/AndroidRuntime(26925):    at com.as.asapp.TFragmentshowInformation(TFragment.java:52)
11-08 17:25:48.541: E/AndroidRuntime(26925):    at com.as.asapp.TFragment.onCreateView(TFragment.java:37)
11-08 17:25:48.541: E/AndroidRuntime(26925):    at android.support.v4.app.Fragment.performCreateView(Fragment.java:1786)
11-08 17:25:48.541: E/AndroidRuntime(26925):    at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:947)
11-08 17:25:48.541: E/AndroidRuntime(26925):    at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1126)
11-08 17:25:48.541: E/AndroidRuntime(26925):    at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:739)
11-08 17:25:48.541: E/AndroidRuntime(26925):    at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1489)
11-08 17:25:48.541: E/AndroidRuntime(26925):    at android.support.v4.app.FragmentManagerImpl$1.run(FragmentManager.java:454)
11-08 17:25:48.541: E/AndroidRuntime(26925):    at android.os.Handler.handleCallback(Handler.java:739)
11-08 17:25:48.541: E/AndroidRuntime(26925):    at android.os.Handler.dispatchMessage(Handler.java:95)
11-08 17:25:48.541: E/AndroidRuntime(26925):    at android.os.Looper.loop(Looper.java:135)
11-08 17:25:48.541: E/AndroidRuntime(26925):    at android.app.ActivityThread.main(ActivityThread.java:5221)
11-08 17:25:48.541: E/AndroidRuntime(26925):    at java.lang.reflect.Method.invoke(Native Method)
11-08 17:25:48.541: E/AndroidRuntime(26925):    at java.lang.reflect.Method.invoke(Method.java:372)
11-08 17:25:48.541: E/AndroidRuntime(26925):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
11-08 17:25:48.541: E/AndroidRuntime(26925):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)

확인, 그 보인다 getWidth()및 getHeight()반환 0하지만 진짜 문제인지 모르겠어. 감사

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이것이 내가 그것을 해결 한 방법이며, onCreateView 콜백의 뷰에 onLayoutChange 리스너를 추가 했으므로 뷰에 연결되고 그릴 준비가 될 때마다 공개를 만듭니다.

@Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
    {
        // Inflate the layout for this fragment
        final View view = inflater.inflate(R.layout.fragment_map_list, container, false);
        if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            view.addOnLayoutChangeListener(new View.OnLayoutChangeListener() {
                @TargetApi(Build.VERSION_CODES.LOLLIPOP)
                @Override
                public void onLayoutChange(View v, int left, int top, int right, int bottom, int oldLeft, int oldTop, int oldRight, int oldBottom) {
                    v.removeOnLayoutChangeListener(this);
                    toggleInformationView(view);
                }
            });
        }
        return view;
    }

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runnable을 사용하여 애니메이션을 수행 할 수 있습니다. runnable은보기 생성 후 실행됩니다.

view.post(new Runnable() {
            @Override
            public void run() {
                //create your anim here
            }
        });

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Small addition to Hitesh's answer. It's better to use https://developer.android.com/reference/android/support/v4/view/ViewCompat.html#isAttachedToWindow(android.view.View)

android.support.v4.view.ViewCompat

boolean isAttachedToWindow (View view)

Example:

LinearLayout rootView = null;
rootView = (LinearLayout) findViewById(R.id.rootView);
boolean isAttachedToWindow = ViewCompat.isAttachedToWindow(rootView);

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How about simply placing the method in the onViewCreated() method:

@Override
    public void onViewCreated(View view, Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);
        toggleInformationView(view);
    }

it works

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simplified outside of the scope of the question

private void startAnimation(@NonNull final View view, @NonNull final Runnable onAttachedToWindow) {
    if (view.isAttachedToWindow()) {
        onAttachedToWindow.run();
    } else {
        view.addOnAttachStateChangeListener(new View.OnAttachStateChangeListener() {
            @Override
            public void onViewAttachedToWindow(View view) {
                onAttachedToWindow.run();
                view.removeOnAttachStateChangeListener(this)
            }

            @Override
            public void onViewDetachedFromWindow(View view) {

            }
        });
    }
}

call startAnimation for one or many animations in mind

startAnimation(view, new Runnable() {
        @Override
        public void run() {
          //the code inside toggleInformationView(view)
        }
    });

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ah !!!, so finally here is the solution for this error. Actually, the problem is that we are assigning a view to animation with its height and width, and suddenly we didn't notice that there may be a case, that view won't load properly that time when we are assigning it to animation. So for that, we have to wait until view properly loads.

LayoutInflater inflater = this.getLayoutInflater();
View rowView = inflater.inflate( R.layout.fileselecttype,null, true );

rowView   or [Your View]

[Your View].post(new Runnable() {
            @Override
            public void run() {
                //Do your animation work here.
            }
        });

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Try to call it on the onViewCreated method

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I was using custom View so I used isAttachedToWindow() method to check if view is attached and avoid doing reveal while view is not attached.

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Use a ViewTreeObserver.

 ViewTreeObserver viewTreeObserver = rootLayout.getViewTreeObserver();
    if (viewTreeObserver.isAlive()) {
        viewTreeObserver.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
            @Override
            public void onGlobalLayout() {
                revealActivity(revealX, revealY);
                rootLayout.getViewTreeObserver().removeOnGlobalLayoutListener(this);
            }
        });
    }

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Check your Layout is attached to window or not by using rootLayout.isAttachedToWindow() method.

 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
        if (rootLayout!= null) {

            if(rootLayout.isAttachedToWindow()) {
                ViewTreeObserver viewTreeObserver = drawerLayout.getViewTreeObserver();
                if (viewTreeObserver.isAlive()) {
                    viewTreeObserver.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
                        @Override
                        public void onGlobalLayout() {
                            startRevealAnimation(rootLayout);
                            rootLayout.getViewTreeObserver().removeOnGlobalLayoutListener(this);
                        }
                    });
                }
            }
        }

참고URL : https://stackoverflow.com/questions/26819429/cannot-start-this-animator-on-a-detached-view-reveal-effect