AppBarLayout ScrollingViewBehavior bana "java.lang.RuntimeException: bu grafik döngüsel bağımlılıklar içeriyor" hatası veriyor

Question

Bu yüzden "java.lang.RuntimeException: Bu grafikte çevrimsel bağımlılıklar var" hatası alıyorum. Bir Davranış tarafından bu var AppBarLayout.ScrollingViewBehavior gelen var. Bu Davranışı kullanan bir AppBarLayout ile bir düzenim var ve davranışı kaldırırsam hata kaybolur. İşte hata ve kod ben FloatingActionButton ile aynı problem vardı

E/AndroidRuntime: FATAL EXCEPTION: main 
Process: yu.heetae.android.mergingtoolbar, PID: 26027 
java.lang.RuntimeException: This graph contains cyclic dependencies 
at android.support.design.widget.DirectedAcyclicGraph.dfs(DirectedAcyclicGraph.java:164) 
at android.support.design.widget.DirectedAcyclicGraph.dfs(DirectedAcyclicGraph.java:172) 
at android.support.design.widget.DirectedAcyclicGraph.dfs(DirectedAcyclicGraph.java:172) 
at android.support.design.widget.DirectedAcyclicGraph.getSortedList(DirectedAcyclicGraph.java:152) 
at android.support.design.widget.CoordinatorLayout.prepareChildren(CoordinatorLayout.java:658) 
at android.support.design.widget.CoordinatorLayout.onMeasure(CoordinatorLayout.java:706) 
at android.view.View.measure(View.java:18794) 
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951) 
at android.widget.FrameLayout.onMeasure(FrameLayout.java:194) 
at android.support.v7.widget.ContentFrameLayout.onMeasure(ContentFrameLayout.java:135) 
at android.view.View.measure(View.java:18794) 
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951) 
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1465) 
at android.widget.LinearLayout.measureVertical(LinearLayout.java:748) 
at android.widget.LinearLayout.onMeasure(LinearLayout.java:630) 
at android.view.View.measure(View.java:18794) 
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951) 
at android.widget.FrameLayout.onMeasure(FrameLayout.java:194) 
at android.view.View.measure(View.java:18794) 
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951) 
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1465) 
at android.widget.LinearLayout.measureVertical(LinearLayout.java:748) 
at android.widget.LinearLayout.onMeasure(LinearLayout.java:630) 
at android.view.View.measure(View.java:18794) 
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951) 
at android.widget.FrameLayout.onMeasure(FrameLayout.java:194) 
at com.android.internal.policy.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2643) 
at android.view.View.measure(View.java:18794) 
at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2100) 
at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1216) 
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1452) 
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1107) 
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6013) 
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:858) 
at android.view.Choreographer.doCallbacks(Choreographer.java:670) 
at android.view.Choreographer.doFrame(Choreographer.java:606) 
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:844) 
at android.os.Handler.handleCallback(Handler.java:739) 
at android.os.Handler.dispatchMessage(Handler.java:95) 
at android.os.Looper.loop(Looper.java:148) 
at android.app.ActivityThread.main(ActivityThread.java:5417) 
at java.lang.reflect.Method.invoke(Native Method) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 

public class MergedAppbarBehavior extends AppBarLayout.ScrollingViewBehavior { 

    private Toolbar mToolbar; 
    private View mBackground; 
    private FrameLayout.LayoutParams mBackgroundLayoutParams; 

    private Context mContext; 

    private boolean isInit = false; 

    public MergedAppbarBehavior(Context context, AttributeSet attrs) { 
     super(context, attrs); 
     mContext = context; 
    } 

    @Override 
    public boolean layoutDependsOn(CoordinatorLayout parent, View child, View dependency) { 
     return dependency instanceof NestedScrollView; 
    } 

    @Override 
    public boolean onDependentViewChanged(CoordinatorLayout parent, View child, View dependency) { 
     if(!isInit) { 
      init(child); 
      return false; 
     } 

     if(isDependencyYBelowToolbar(child, dependency) && ! isDependencyYReachTop(dependency)) { 
      setToolbarBackground(android.R.color.transparent); 
      setPartialBackgroundHeight((int)((child.getHeight() + child.getY()) - dependency.getY())); 
     } else if(isDependencyYBelowStatusToolbar(child, dependency) || isDependencyYReachTop(dependency)) { 
      setToolbarBackground(Color.parseColor("#3F51B5")); 
      setPartialBackgroundHeight(0); 
     } 

     return false; 
    } 

    private void init(View child) { 
     AppBarLayout appBarLayout = (AppBarLayout) child; 

     mToolbar = (Toolbar) appBarLayout.findViewById(R.id.toolbar); 
     mToolbar.setTitle(" "); 
     mBackground = appBarLayout.findViewById(R.id.background_view); 
     mBackgroundLayoutParams = (FrameLayout.LayoutParams) mBackground.getLayoutParams(); 

     setToolbarBackground(android.R.color.transparent); 
     setPartialBackgroundHeight(0); 

     isInit = true; 
    } 

    private boolean isDependencyYBelowToolbar(View child, View dependency){ 
     return dependency.getY() <= child.getY() + child.getHeight() && dependency.getY() > child.getY(); 
    } 

    private boolean isDependencyYBelowStatusToolbar(View child, View dependency){ 
     return dependency.getY() <= child.getY(); 
    } 

    private boolean isDependencyYReachTop(View dependency){ 
     return dependency.getY() == 0; 
    } 

    private void setPartialBackgroundHeight(int height){ 
     mBackgroundLayoutParams.height = height; 
     mBackground.setLayoutParams(mBackgroundLayoutParams); 
    } 

    private void setToolbarBackground(int color) { 
     mToolbar.setBackgroundColor(ContextCompat.getColor(mContext, color)); 
    } 
} 

Answer 1

Davranış için. Sadece aktif bir mesele artık benim XML gerçekten

app:layout_anchor="@id/list_view" 

Answer 2

Değil bu çizgiyi kaldırıldı, ancak durumda birileri aynı yanılgıya çalıştırır: layout_anchors: Uygulamanızın kontrol edin. Tabii

<View 
    android:id="@+id/firstView" 
    app:layout_anchor="@+id/secondView" /> 

<View 
    android:id="@id/secondView" 
    app:layout_anchor="@id/firstView" /> 

fiili durum bu ile başlayacak kaymış nasıl oldu biraz daha karmaşık oldu: Ben buna benzer bir kurulum vardı

Bu hata sadece benim için oluştu. Her neyse, hata bağımlılık döngüsünde ipuçları.