Java ConstantState类代码示例

import android.graphics.drawable.Drawable.ConstantState; //导入依赖的package包/类
private Drawable getCachedDelegateDrawable(@NonNull Context context, long key) {
    Drawable drawable = null;
    synchronized (this.mDelegateDrawableCacheLock) {
        LongSparseArray<WeakReference<ConstantState>> cache = (LongSparseArray) this.mDelegateDrawableCaches.get(context);
        if (cache == null) {
        } else {
            WeakReference<ConstantState> wr = (WeakReference) cache.get(key);
            if (wr != null) {
                ConstantState entry = (ConstantState) wr.get();
                if (entry != null) {
                    drawable = entry.newDrawable(context.getResources());
                } else {
                    cache.delete(key);
                }
            }
        }
    }
    return drawable;
}
 

import android.graphics.drawable.Drawable.ConstantState; //导入依赖的package包/类
private static boolean setContainerConstantStateV9(DrawableContainer drawable, ConstantState constantState) {
    if (!sSetConstantStateMethodFetched) {
        try {
            sSetConstantStateMethod = DrawableContainer.class.getDeclaredMethod("setConstantState", new Class[]{DrawableContainerState.class});
            sSetConstantStateMethod.setAccessible(true);
        } catch (NoSuchMethodException e) {
            Log.e(LOG_TAG, "Could not fetch setConstantState(). Oh well.");
        }
        sSetConstantStateMethodFetched = true;
    }
    if (sSetConstantStateMethod != null) {
        try {
            sSetConstantStateMethod.invoke(drawable, new Object[]{constantState});
            return true;
        } catch (Exception e2) {
            Log.e(LOG_TAG, "Could not invoke setConstantState(). Oh well.");
        }
    }
    return false;
}
 

import android.graphics.drawable.Drawable.ConstantState; //导入依赖的package包/类
private static boolean setContainerConstantStateV7(DrawableContainer drawable, ConstantState constantState) {
    if (!sDrawableContainerStateFieldFetched) {
        try {
            sDrawableContainerStateField = DrawableContainer.class.getDeclaredField("mDrawableContainerStateField");
            sDrawableContainerStateField.setAccessible(true);
        } catch (NoSuchFieldException e) {
            Log.e(LOG_TAG, "Could not fetch mDrawableContainerStateField. Oh well.");
        }
        sDrawableContainerStateFieldFetched = true;
    }
    if (sDrawableContainerStateField != null) {
        try {
            sDrawableContainerStateField.set(drawable, constantState);
            return true;
        } catch (Exception e2) {
            Log.e(LOG_TAG, "Could not set mDrawableContainerStateField. Oh well.");
        }
    }
    return false;
}
 

import android.graphics.drawable.Drawable.ConstantState; //导入依赖的package包/类
private Drawable getCachedDrawable(@NonNull final Context context, final long key) {
    synchronized (mDrawableCacheLock) {
        final LongSparseArray<WeakReference<ConstantState>> cache
                = mDrawableCaches.get(context);
        if (cache == null) {
            return null;
        }

        final WeakReference<ConstantState> wr = cache.get(key);
        if (wr != null) {
            // We have the key, and the secret
            ConstantState entry = wr.get();
            if (entry != null) {
                return entry.newDrawable(context.getResources());
            } else {
                // Our entry has been purged
                cache.delete(key);
            }
        }
    }
    return null;
}
 

import android.graphics.drawable.Drawable.ConstantState; //导入依赖的package包/类
private boolean addDrawableToCache(@NonNull final Context context, final long key,
                                   @NonNull final Drawable drawable) {
    final ConstantState cs = drawable.getConstantState();
    if (cs != null) {
        synchronized (mDrawableCacheLock) {
            LongSparseArray<WeakReference<ConstantState>> cache = mDrawableCaches.get(context);
            if (cache == null) {
                cache = new LongSparseArray<>();
                mDrawableCaches.put(context, cache);
            }
            cache.put(key, new WeakReference<ConstantState>(cs));
        }
        return true;
    }
    return false;
}
 

import android.graphics.drawable.Drawable.ConstantState; //导入依赖的package包/类
private Drawable m2496a(Context context, long j) {
    synchronized (this.f1317m) {
        C0113f c0113f = (C0113f) this.f1318n.get(context);
        if (c0113f == null) {
            return null;
        }
        WeakReference weakReference = (WeakReference) c0113f.m641a(j);
        if (weakReference != null) {
            ConstantState constantState = (ConstantState) weakReference.get();
            if (constantState != null) {
                Drawable newDrawable = constantState.newDrawable(context.getResources());
                return newDrawable;
            }
            c0113f.m645b(j);
        }
        return null;
    }
}
 

import android.graphics.drawable.Drawable.ConstantState; //导入依赖的package包/类
private Drawable getCachedDelegateDrawable(@NonNull final Context context, final long key) {
    synchronized (mDelegateDrawableCacheLock) {
        final LongSparseArray<WeakReference<ConstantState>> cache
                = mDelegateDrawableCaches.get(context);
        if (cache == null) {
            return null;
        }

        final WeakReference<ConstantState> wr = cache.get(key);
        if (wr != null) {
            // We have the key, and the secret
            ConstantState entry = wr.get();
            if (entry != null) {
                return entry.newDrawable(context.getResources());
            } else {
                // Our entry has been purged
                cache.delete(key);
            }
        }
    }
    return null;
}
 

import android.graphics.drawable.Drawable.ConstantState; //导入依赖的package包/类
private boolean addCachedDelegateDrawable(@NonNull final Context context, final long key,
        @NonNull final Drawable drawable) {
    final ConstantState cs = drawable.getConstantState();
    if (cs != null) {
        synchronized (mDelegateDrawableCacheLock) {
            LongSparseArray<WeakReference<ConstantState>> cache
                    = mDelegateDrawableCaches.get(context);
            if (cache == null) {
                cache = new LongSparseArray<>();
                mDelegateDrawableCaches.put(context, cache);
            }
            cache.put(key, new WeakReference<ConstantState>(cs));
        }
        return true;
    }
    return false;
}
 

import android.graphics.drawable.Drawable.ConstantState; //导入依赖的package包/类
public void setIcon(Drawable paramDrawable)
{
  Drawable.ConstantState localConstantState;
  if (paramDrawable != null)
  {
    localConstantState = paramDrawable.getConstantState();
    if (localConstantState != null) {
      break label52;
    }
  }
  for (;;)
  {
    paramDrawable = DrawableCompat.wrap(paramDrawable).mutate();
    paramDrawable.setBounds(0, 0, this.mIconSize, this.mIconSize);
    DrawableCompat.setTintList(paramDrawable, this.mIconTintList);
    TextViewCompat.setCompoundDrawablesRelative$16207aff(this.mTextView, paramDrawable);
    return;
    label52:
    paramDrawable = localConstantState.newDrawable();
  }
}
 

import android.graphics.drawable.Drawable.ConstantState; //导入依赖的package包/类
@Override
public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference) {
    super.onPreferenceTreeClick(preferenceScreen, preference);
    if (preference instanceof PreferenceScreen)
        setUpNestedScreen((PreferenceScreen) preference);
    try {
        if (preference!=null && preference instanceof PreferenceScreen) {
            Dialog dialog = ((PreferenceScreen)preference).getDialog();
            if (dialog!=null) {
                Window window = dialog.getWindow();
                if (window != null) {
                    ConstantState state = this.getWindow().getDecorView().findViewById(android.R.id.content).getBackground().getConstantState();
                    if (state != null)
                        window.getDecorView().setBackgroundDrawable(state.newDrawable());
                }
            }
        }
    } catch(Exception e){}
    return false;
}
 

import android.graphics.drawable.Drawable.ConstantState; //导入依赖的package包/类
@SuppressWarnings("unchecked")
@Override
public final T get() {
  @Nullable ConstantState state = drawable.getConstantState();
  if (state == null) {
    return drawable;
  }
  // Drawables contain temporary state related to how they're being displayed
  // (alpha, color filter etc), so return a new copy each time.
  // If we ever return the original drawable, it's temporary state may be changed
  // and subsequent copies may end up with that temporary state. See #276.
  return (T) state.newDrawable();
}
 

import android.graphics.drawable.Drawable.ConstantState; //导入依赖的package包/类
public SuggestionsAdapter(Context context, SearchView searchView, SearchableInfo searchable, WeakHashMap<String, ConstantState> outsideDrawablesCache) {
    super(context, searchView.getSuggestionRowLayout(), null, true);
    this.mSearchView = searchView;
    this.mSearchable = searchable;
    this.mCommitIconResId = searchView.getSuggestionCommitIconResId();
    this.mProviderContext = context;
    this.mOutsideDrawablesCache = outsideDrawablesCache;
}
 

import android.graphics.drawable.Drawable.ConstantState; //导入依赖的package包/类
private Drawable checkIconCache(String resourceUri) {
    ConstantState cached = (ConstantState) this.mOutsideDrawablesCache.get(resourceUri);
    if (cached == null) {
        return null;
    }
    return cached.newDrawable();
}
 

import android.graphics.drawable.Drawable.ConstantState; //导入依赖的package包/类
private Drawable getActivityIconWithCache(ComponentName component) {
    String componentIconKey = component.flattenToShortString();
    if (this.mOutsideDrawablesCache.containsKey(componentIconKey)) {
        ConstantState cached = (ConstantState) this.mOutsideDrawablesCache.get(componentIconKey);
        if (cached == null) {
            return null;
        }
        return cached.newDrawable(this.mProviderContext.getResources());
    }
    Drawable drawable = getActivityIcon(component);
    this.mOutsideDrawablesCache.put(componentIconKey, drawable == null ? null : drawable.getConstantState());
    return drawable;
}
 

import android.graphics.drawable.Drawable.ConstantState; //导入依赖的package包/类
public AnimatedVectorDrawableCompatState(Context context, AnimatedVectorDrawableCompatState copy, Callback owner, Resources res) {
    if (copy != null) {
        this.mChangingConfigurations = copy.mChangingConfigurations;
        if (copy.mVectorDrawable != null) {
            ConstantState cs = copy.mVectorDrawable.getConstantState();
            if (res != null) {
                this.mVectorDrawable = (VectorDrawableCompat) cs.newDrawable(res);
            } else {
                this.mVectorDrawable = (VectorDrawableCompat) cs.newDrawable();
            }
            this.mVectorDrawable = (VectorDrawableCompat) this.mVectorDrawable.mutate();
            this.mVectorDrawable.setCallback(owner);
            this.mVectorDrawable.setBounds(copy.mVectorDrawable.getBounds());
            this.mVectorDrawable.setAllowCaching(false);
        }
        if (copy.mAnimators != null) {
            int numAnimators = copy.mAnimators.size();
            this.mAnimators = new ArrayList(numAnimators);
            this.mTargetNameMap = new ArrayMap(numAnimators);
            for (int i = 0; i < numAnimators; i++) {
                Animator anim = (Animator) copy.mAnimators.get(i);
                Animator animClone = anim.clone();
                String targetName = (String) copy.mTargetNameMap.get(anim);
                animClone.setTarget(this.mVectorDrawable.getTargetByName(targetName));
                this.mAnimators.add(animClone);
                this.mTargetNameMap.put(animClone, targetName);
            }
        }
    }
}