ADD week 5

02-Easy5/E5/sources/androidx/transition/Scene.java

@@ -0,0 +1,97 @@
+package androidx.transition;
+
+import android.content.Context;
+import android.util.SparseArray;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+/* loaded from: classes.dex */
+public class Scene {
+    private Context mContext;
+    private Runnable mEnterAction;
+    private Runnable mExitAction;
+    private View mLayout;
+    private int mLayoutId;
+    private ViewGroup mSceneRoot;
+
+    public ViewGroup getSceneRoot() {
+        return this.mSceneRoot;
+    }
+
+    boolean isCreatedFromLayoutResource() {
+        return this.mLayoutId > 0;
+    }
+
+    public void setEnterAction(Runnable runnable) {
+        this.mEnterAction = runnable;
+    }
+
+    public void setExitAction(Runnable runnable) {
+        this.mExitAction = runnable;
+    }
+
+    public static Scene getSceneForLayout(ViewGroup viewGroup, int i, Context context) {
+        SparseArray sparseArray = (SparseArray) viewGroup.getTag(R.id.transition_scene_layoutid_cache);
+        if (sparseArray == null) {
+            sparseArray = new SparseArray();
+            viewGroup.setTag(R.id.transition_scene_layoutid_cache, sparseArray);
+        }
+        Scene scene = (Scene) sparseArray.get(i);
+        if (scene != null) {
+            return scene;
+        }
+        Scene scene2 = new Scene(viewGroup, i, context);
+        sparseArray.put(i, scene2);
+        return scene2;
+    }
+
+    public Scene(ViewGroup viewGroup) {
+        this.mLayoutId = -1;
+        this.mSceneRoot = viewGroup;
+    }
+
+    private Scene(ViewGroup viewGroup, int i, Context context) {
+        this.mContext = context;
+        this.mSceneRoot = viewGroup;
+        this.mLayoutId = i;
+    }
+
+    public Scene(ViewGroup viewGroup, View view) {
+        this.mLayoutId = -1;
+        this.mSceneRoot = viewGroup;
+        this.mLayout = view;
+    }
+
+    public void exit() {
+        Runnable runnable;
+        if (getCurrentScene(this.mSceneRoot) != this || (runnable = this.mExitAction) == null) {
+            return;
+        }
+        runnable.run();
+    }
+
+    public void enter() {
+        if (this.mLayoutId > 0 || this.mLayout != null) {
+            getSceneRoot().removeAllViews();
+            if (this.mLayoutId > 0) {
+                LayoutInflater.from(this.mContext).inflate(this.mLayoutId, this.mSceneRoot);
+            } else {
+                this.mSceneRoot.addView(this.mLayout);
+            }
+        }
+        Runnable runnable = this.mEnterAction;
+        if (runnable != null) {
+            runnable.run();
+        }
+        setCurrentScene(this.mSceneRoot, this);
+    }
+
+    static void setCurrentScene(ViewGroup viewGroup, Scene scene) {
+        viewGroup.setTag(R.id.transition_current_scene, scene);
+    }
+
+    public static Scene getCurrentScene(ViewGroup viewGroup) {
+        return (Scene) viewGroup.getTag(R.id.transition_current_scene);
+    }
+}