ADD week 5

2025-03-31 16:33:42 +02:00
parent 86f265f22d
commit bf645048e6
4927 changed files with 544053 additions and 0 deletions
--- a/02-Easy5/E5/sources/androidx/fragment/app/FragmentPagerAdapter.java
+++ b/02-Easy5/E5/sources/androidx/fragment/app/FragmentPagerAdapter.java
@@ -0,0 +1,148 @@
+package androidx.fragment.app;
+
+import android.os.Parcelable;
+import android.view.View;
+import android.view.ViewGroup;
+import androidx.lifecycle.Lifecycle;
+import androidx.viewpager.widget.PagerAdapter;
+
+@Deprecated
+/* loaded from: classes.dex */
+public abstract class FragmentPagerAdapter extends PagerAdapter {
+    public static final int BEHAVIOR_RESUME_ONLY_CURRENT_FRAGMENT = 1;
+
+    @Deprecated
+    public static final int BEHAVIOR_SET_USER_VISIBLE_HINT = 0;
+    private static final boolean DEBUG = false;
+    private static final String TAG = "FragmentPagerAdapter";
+    private final int mBehavior;
+    private FragmentTransaction mCurTransaction;
+    private Fragment mCurrentPrimaryItem;
+    private boolean mExecutingFinishUpdate;
+    private final FragmentManager mFragmentManager;
+
+    public abstract Fragment getItem(int i);
+
+    public long getItemId(int i) {
+        return i;
+    }
+
+    @Override // androidx.viewpager.widget.PagerAdapter
+    public void restoreState(Parcelable parcelable, ClassLoader classLoader) {
+    }
+
+    @Override // androidx.viewpager.widget.PagerAdapter
+    public Parcelable saveState() {
+        return null;
+    }
+
+    @Deprecated
+    public FragmentPagerAdapter(FragmentManager fragmentManager) {
+        this(fragmentManager, 0);
+    }
+
+    public FragmentPagerAdapter(FragmentManager fragmentManager, int i) {
+        this.mCurTransaction = null;
+        this.mCurrentPrimaryItem = null;
+        this.mFragmentManager = fragmentManager;
+        this.mBehavior = i;
+    }
+
+    @Override // androidx.viewpager.widget.PagerAdapter
+    public void startUpdate(ViewGroup viewGroup) {
+        if (viewGroup.getId() != -1) {
+            return;
+        }
+        throw new IllegalStateException("ViewPager with adapter " + this + " requires a view id");
+    }
+
+    @Override // androidx.viewpager.widget.PagerAdapter
+    public Object instantiateItem(ViewGroup viewGroup, int i) {
+        if (this.mCurTransaction == null) {
+            this.mCurTransaction = this.mFragmentManager.beginTransaction();
+        }
+        long itemId = getItemId(i);
+        Fragment findFragmentByTag = this.mFragmentManager.findFragmentByTag(makeFragmentName(viewGroup.getId(), itemId));
+        if (findFragmentByTag != null) {
+            this.mCurTransaction.attach(findFragmentByTag);
+        } else {
+            findFragmentByTag = getItem(i);
+            this.mCurTransaction.add(viewGroup.getId(), findFragmentByTag, makeFragmentName(viewGroup.getId(), itemId));
+        }
+        if (findFragmentByTag != this.mCurrentPrimaryItem) {
+            findFragmentByTag.setMenuVisibility(false);
+            if (this.mBehavior == 1) {
+                this.mCurTransaction.setMaxLifecycle(findFragmentByTag, Lifecycle.State.STARTED);
+            } else {
+                findFragmentByTag.setUserVisibleHint(false);
+            }
+        }
+        return findFragmentByTag;
+    }
+
+    @Override // androidx.viewpager.widget.PagerAdapter
+    public void destroyItem(ViewGroup viewGroup, int i, Object obj) {
+        Fragment fragment = (Fragment) obj;
+        if (this.mCurTransaction == null) {
+            this.mCurTransaction = this.mFragmentManager.beginTransaction();
+        }
+        this.mCurTransaction.detach(fragment);
+        if (fragment.equals(this.mCurrentPrimaryItem)) {
+            this.mCurrentPrimaryItem = null;
+        }
+    }
+
+    @Override // androidx.viewpager.widget.PagerAdapter
+    public void setPrimaryItem(ViewGroup viewGroup, int i, Object obj) {
+        Fragment fragment = (Fragment) obj;
+        Fragment fragment2 = this.mCurrentPrimaryItem;
+        if (fragment != fragment2) {
+            if (fragment2 != null) {
+                fragment2.setMenuVisibility(false);
+                if (this.mBehavior == 1) {
+                    if (this.mCurTransaction == null) {
+                        this.mCurTransaction = this.mFragmentManager.beginTransaction();
+                    }
+                    this.mCurTransaction.setMaxLifecycle(this.mCurrentPrimaryItem, Lifecycle.State.STARTED);
+                } else {
+                    this.mCurrentPrimaryItem.setUserVisibleHint(false);
+                }
+            }
+            fragment.setMenuVisibility(true);
+            if (this.mBehavior == 1) {
+                if (this.mCurTransaction == null) {
+                    this.mCurTransaction = this.mFragmentManager.beginTransaction();
+                }
+                this.mCurTransaction.setMaxLifecycle(fragment, Lifecycle.State.RESUMED);
+            } else {
+                fragment.setUserVisibleHint(true);
+            }
+            this.mCurrentPrimaryItem = fragment;
+        }
+    }
+
+    @Override // androidx.viewpager.widget.PagerAdapter
+    public void finishUpdate(ViewGroup viewGroup) {
+        FragmentTransaction fragmentTransaction = this.mCurTransaction;
+        if (fragmentTransaction != null) {
+            if (!this.mExecutingFinishUpdate) {
+                try {
+                    this.mExecutingFinishUpdate = true;
+                    fragmentTransaction.commitNowAllowingStateLoss();
+                } finally {
+                    this.mExecutingFinishUpdate = false;
+                }
+            }
+            this.mCurTransaction = null;
+        }
+    }
+
+    @Override // androidx.viewpager.widget.PagerAdapter
+    public boolean isViewFromObject(View view, Object obj) {
+        return ((Fragment) obj).getView() == view;
+    }
+
+    private static String makeFragmentName(int i, long j) {
+        return "android:switcher:" + i + ":" + j;
+    }
+}