| /* |
| * Copyright (C) 2008 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package android.content.res; |
| |
| import com.android.annotations.Nullable; |
| import com.android.ide.common.rendering.api.AttrResourceValue; |
| import com.android.ide.common.rendering.api.LayoutLog; |
| import com.android.ide.common.rendering.api.RenderResources; |
| import com.android.ide.common.rendering.api.ResourceValue; |
| import com.android.ide.common.rendering.api.StyleResourceValue; |
| import com.android.internal.util.XmlUtils; |
| import com.android.layoutlib.bridge.Bridge; |
| import com.android.layoutlib.bridge.android.BridgeContext; |
| import com.android.layoutlib.bridge.android.BridgeXmlBlockParser; |
| import com.android.layoutlib.bridge.impl.ParserFactory; |
| import com.android.layoutlib.bridge.impl.ResourceHelper; |
| import com.android.resources.ResourceType; |
| |
| import org.xmlpull.v1.XmlPullParser; |
| import org.xmlpull.v1.XmlPullParserException; |
| |
| import android.content.res.Resources.Theme; |
| import android.graphics.drawable.Drawable; |
| import android.util.DisplayMetrics; |
| import android.util.TypedValue; |
| import android.view.LayoutInflater_Delegate; |
| import android.view.ViewGroup.LayoutParams; |
| |
| import java.io.File; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Map; |
| |
| import static com.android.ide.common.rendering.api.RenderResources.*; |
| |
| /** |
| * Custom implementation of TypedArray to handle non compiled resources. |
| */ |
| public final class BridgeTypedArray extends TypedArray { |
| |
| private final BridgeResources mBridgeResources; |
| private final BridgeContext mContext; |
| private final boolean mPlatformFile; |
| |
| private final ResourceValue[] mResourceData; |
| private final String[] mNames; |
| private final boolean[] mIsFramework; |
| |
| // Contains ids that are @empty. We still store null in mResourceData for that index, since we |
| // want to save on the check against empty, each time a resource value is requested. |
| @Nullable |
| private int[] mEmptyIds; |
| |
| public BridgeTypedArray(BridgeResources resources, BridgeContext context, int len, |
| boolean platformFile) { |
| super(resources, null, null, 0); |
| mBridgeResources = resources; |
| mContext = context; |
| mPlatformFile = platformFile; |
| mResourceData = new ResourceValue[len]; |
| mNames = new String[len]; |
| mIsFramework = new boolean[len]; |
| } |
| |
| /** |
| * A bridge-specific method that sets a value in the type array |
| * @param index the index of the value in the TypedArray |
| * @param name the name of the attribute |
| * @param isFramework whether the attribute is in the android namespace. |
| * @param value the value of the attribute |
| */ |
| public void bridgeSetValue(int index, String name, boolean isFramework, ResourceValue value) { |
| mResourceData[index] = value; |
| mNames[index] = name; |
| mIsFramework[index] = isFramework; |
| } |
| |
| /** |
| * Seals the array after all calls to |
| * {@link #bridgeSetValue(int, String, boolean, ResourceValue)} have been done. |
| * <p/>This allows to compute the list of non default values, permitting |
| * {@link #getIndexCount()} to return the proper value. |
| */ |
| public void sealArray() { |
| // fills TypedArray.mIndices which is used to implement getIndexCount/getIndexAt |
| // first count the array size |
| int count = 0; |
| ArrayList<Integer> emptyIds = null; |
| for (int i = 0; i < mResourceData.length; i++) { |
| ResourceValue data = mResourceData[i]; |
| if (data != null) { |
| String dataValue = data.getValue(); |
| if (REFERENCE_NULL.equals(dataValue) || REFERENCE_UNDEFINED.equals(dataValue)) { |
| mResourceData[i] = null; |
| } else if (REFERENCE_EMPTY.equals(dataValue)) { |
| mResourceData[i] = null; |
| if (emptyIds == null) { |
| emptyIds = new ArrayList<Integer>(4); |
| } |
| emptyIds.add(i); |
| } else { |
| count++; |
| } |
| } |
| } |
| |
| if (emptyIds != null) { |
| mEmptyIds = new int[emptyIds.size()]; |
| for (int i = 0; i < emptyIds.size(); i++) { |
| mEmptyIds[i] = emptyIds.get(i); |
| } |
| } |
| |
| // allocate the table with an extra to store the size |
| mIndices = new int[count+1]; |
| mIndices[0] = count; |
| |
| // fill the array with the indices. |
| int index = 1; |
| for (int i = 0 ; i < mResourceData.length ; i++) { |
| if (mResourceData[i] != null) { |
| mIndices[index++] = i; |
| } |
| } |
| } |
| |
| /** |
| * Set the theme to be used for inflating drawables. |
| */ |
| public void setTheme(Theme theme) { |
| mTheme = theme; |
| } |
| |
| /** |
| * Return the number of values in this array. |
| */ |
| @Override |
| public int length() { |
| return mResourceData.length; |
| } |
| |
| /** |
| * Return the Resources object this array was loaded from. |
| */ |
| @Override |
| public Resources getResources() { |
| return mBridgeResources; |
| } |
| |
| /** |
| * Retrieve the styled string value for the attribute at <var>index</var>. |
| * |
| * @param index Index of attribute to retrieve. |
| * |
| * @return CharSequence holding string data. May be styled. Returns |
| * null if the attribute is not defined. |
| */ |
| @Override |
| public CharSequence getText(int index) { |
| // FIXME: handle styled strings! |
| return getString(index); |
| } |
| |
| /** |
| * Retrieve the string value for the attribute at <var>index</var>. |
| * |
| * @param index Index of attribute to retrieve. |
| * |
| * @return String holding string data. Any styling information is |
| * removed. Returns null if the attribute is not defined. |
| */ |
| @Override |
| public String getString(int index) { |
| if (!hasValue(index)) { |
| return null; |
| } |
| // As unfortunate as it is, it's possible to use enums with all attribute formats, |
| // not just integers/enums. So, we need to search the enums always. In case |
| // enums are used, the returned value is an integer. |
| Integer v = resolveEnumAttribute(index); |
| return v == null ? mResourceData[index].getValue() : String.valueOf((int) v); |
| } |
| |
| /** |
| * Retrieve the boolean value for the attribute at <var>index</var>. |
| * |
| * @param index Index of attribute to retrieve. |
| * @param defValue Value to return if the attribute is not defined. |
| * |
| * @return Attribute boolean value, or defValue if not defined. |
| */ |
| @Override |
| public boolean getBoolean(int index, boolean defValue) { |
| String s = getString(index); |
| return s == null ? defValue : XmlUtils.convertValueToBoolean(s, defValue); |
| |
| } |
| |
| /** |
| * Retrieve the integer value for the attribute at <var>index</var>. |
| * |
| * @param index Index of attribute to retrieve. |
| * @param defValue Value to return if the attribute is not defined. |
| * |
| * @return Attribute int value, or defValue if not defined. |
| */ |
| @Override |
| public int getInt(int index, int defValue) { |
| String s = getString(index); |
| try { |
| if (s != null) { |
| return XmlUtils.convertValueToInt(s, defValue); |
| } |
| } catch (NumberFormatException e) { |
| Bridge.getLog().warning(LayoutLog.TAG_RESOURCES_FORMAT, |
| String.format("\"%1$s\" in attribute \"%2$s\" is not a valid integer", |
| s, mNames[index]), |
| null); |
| return defValue; |
| } |
| return defValue; |
| } |
| |
| /** |
| * Retrieve the float value for the attribute at <var>index</var>. |
| * |
| * @param index Index of attribute to retrieve. |
| * |
| * @return Attribute float value, or defValue if not defined.. |
| */ |
| @Override |
| public float getFloat(int index, float defValue) { |
| String s = getString(index); |
| try { |
| if (s != null) { |
| return Float.parseFloat(s); |
| } |
| } catch (NumberFormatException e) { |
| Bridge.getLog().warning(LayoutLog.TAG_RESOURCES_FORMAT, |
| String.format("\"%1$s\" in attribute \"%2$s\" cannot be converted to float.", |
| s, mNames[index]), |
| null); |
| } |
| return defValue; |
| } |
| |
| /** |
| * Retrieve the color value for the attribute at <var>index</var>. If |
| * the attribute references a color resource holding a complex |
| * {@link android.content.res.ColorStateList}, then the default color from |
| * the set is returned. |
| * |
| * @param index Index of attribute to retrieve. |
| * @param defValue Value to return if the attribute is not defined or |
| * not a resource. |
| * |
| * @return Attribute color value, or defValue if not defined. |
| */ |
| @Override |
| public int getColor(int index, int defValue) { |
| if (index < 0 || index >= mResourceData.length) { |
| return defValue; |
| } |
| |
| if (mResourceData[index] == null) { |
| return defValue; |
| } |
| |
| ColorStateList colorStateList = ResourceHelper.getColorStateList( |
| mResourceData[index], mContext); |
| if (colorStateList != null) { |
| return colorStateList.getDefaultColor(); |
| } |
| |
| return defValue; |
| } |
| |
| /** |
| * Retrieve the ColorStateList for the attribute at <var>index</var>. |
| * The value may be either a single solid color or a reference to |
| * a color or complex {@link android.content.res.ColorStateList} description. |
| * |
| * @param index Index of attribute to retrieve. |
| * |
| * @return ColorStateList for the attribute, or null if not defined. |
| */ |
| @Override |
| public ColorStateList getColorStateList(int index) { |
| if (!hasValue(index)) { |
| return null; |
| } |
| |
| ResourceValue resValue = mResourceData[index]; |
| String value = resValue.getValue(); |
| |
| if (value == null) { |
| return null; |
| } |
| |
| // let the framework inflate the ColorStateList from the XML file. |
| File f = new File(value); |
| if (f.isFile()) { |
| try { |
| XmlPullParser parser = ParserFactory.create(f); |
| |
| BridgeXmlBlockParser blockParser = new BridgeXmlBlockParser( |
| parser, mContext, resValue.isFramework()); |
| try { |
| return ColorStateList.createFromXml(mContext.getResources(), blockParser); |
| } finally { |
| blockParser.ensurePopped(); |
| } |
| } catch (XmlPullParserException e) { |
| Bridge.getLog().error(LayoutLog.TAG_BROKEN, |
| "Failed to configure parser for " + value, e, null); |
| return null; |
| } catch (Exception e) { |
| // this is an error and not warning since the file existence is checked before |
| // attempting to parse it. |
| Bridge.getLog().error(LayoutLog.TAG_RESOURCES_READ, |
| "Failed to parse file " + value, e, null); |
| |
| return null; |
| } |
| } |
| |
| try { |
| int color = ResourceHelper.getColor(value); |
| return ColorStateList.valueOf(color); |
| } catch (NumberFormatException e) { |
| Bridge.getLog().error(LayoutLog.TAG_RESOURCES_FORMAT, e.getMessage(), e, null); |
| } |
| |
| return null; |
| } |
| |
| /** |
| * Retrieve the integer value for the attribute at <var>index</var>. |
| * |
| * @param index Index of attribute to retrieve. |
| * @param defValue Value to return if the attribute is not defined or |
| * not a resource. |
| * |
| * @return Attribute integer value, or defValue if not defined. |
| */ |
| @Override |
| public int getInteger(int index, int defValue) { |
| return getInt(index, defValue); |
| } |
| |
| /** |
| * Retrieve a dimensional unit attribute at <var>index</var>. Unit |
| * conversions are based on the current {@link DisplayMetrics} |
| * associated with the resources this {@link TypedArray} object |
| * came from. |
| * |
| * @param index Index of attribute to retrieve. |
| * @param defValue Value to return if the attribute is not defined or |
| * not a resource. |
| * |
| * @return Attribute dimension value multiplied by the appropriate |
| * metric, or defValue if not defined. |
| * |
| * @see #getDimensionPixelOffset |
| * @see #getDimensionPixelSize |
| */ |
| @Override |
| public float getDimension(int index, float defValue) { |
| String s = getString(index); |
| if (s == null) { |
| return defValue; |
| } |
| // Check if the value is a magic constant that doesn't require a unit. |
| try { |
| int i = Integer.parseInt(s); |
| if (i == LayoutParams.MATCH_PARENT || i == LayoutParams.WRAP_CONTENT) { |
| return i; |
| } |
| } catch (NumberFormatException ignored) { |
| // pass |
| } |
| |
| if (ResourceHelper.parseFloatAttribute(mNames[index], s, mValue, true)) { |
| return mValue.getDimension(mBridgeResources.getDisplayMetrics()); |
| } |
| |
| return defValue; |
| } |
| |
| /** |
| * Retrieve a dimensional unit attribute at <var>index</var> for use |
| * as an offset in raw pixels. This is the same as |
| * {@link #getDimension}, except the returned value is converted to |
| * integer pixels for you. An offset conversion involves simply |
| * truncating the base value to an integer. |
| * |
| * @param index Index of attribute to retrieve. |
| * @param defValue Value to return if the attribute is not defined or |
| * not a resource. |
| * |
| * @return Attribute dimension value multiplied by the appropriate |
| * metric and truncated to integer pixels, or defValue if not defined. |
| * |
| * @see #getDimension |
| * @see #getDimensionPixelSize |
| */ |
| @Override |
| public int getDimensionPixelOffset(int index, int defValue) { |
| return (int) getDimension(index, defValue); |
| } |
| |
| /** |
| * Retrieve a dimensional unit attribute at <var>index</var> for use |
| * as a size in raw pixels. This is the same as |
| * {@link #getDimension}, except the returned value is converted to |
| * integer pixels for use as a size. A size conversion involves |
| * rounding the base value, and ensuring that a non-zero base value |
| * is at least one pixel in size. |
| * |
| * @param index Index of attribute to retrieve. |
| * @param defValue Value to return if the attribute is not defined or |
| * not a resource. |
| * |
| * @return Attribute dimension value multiplied by the appropriate |
| * metric and truncated to integer pixels, or defValue if not defined. |
| * |
| * @see #getDimension |
| * @see #getDimensionPixelOffset |
| */ |
| @Override |
| public int getDimensionPixelSize(int index, int defValue) { |
| try { |
| return getDimension(index); |
| } catch (RuntimeException e) { |
| String s = getString(index); |
| |
| if (s != null) { |
| // looks like we were unable to resolve the dimension value |
| Bridge.getLog().warning(LayoutLog.TAG_RESOURCES_FORMAT, |
| String.format("\"%1$s\" in attribute \"%2$s\" is not a valid format.", |
| s, mNames[index]), null); |
| } |
| |
| return defValue; |
| } |
| } |
| |
| /** |
| * Special version of {@link #getDimensionPixelSize} for retrieving |
| * {@link android.view.ViewGroup}'s layout_width and layout_height |
| * attributes. This is only here for performance reasons; applications |
| * should use {@link #getDimensionPixelSize}. |
| * |
| * @param index Index of the attribute to retrieve. |
| * @param name Textual name of attribute for error reporting. |
| * |
| * @return Attribute dimension value multiplied by the appropriate |
| * metric and truncated to integer pixels. |
| */ |
| @Override |
| public int getLayoutDimension(int index, String name) { |
| try { |
| // this will throw an exception |
| return getDimension(index); |
| } catch (RuntimeException e) { |
| |
| if (LayoutInflater_Delegate.sIsInInclude) { |
| throw new RuntimeException(); |
| } |
| |
| Bridge.getLog().warning(LayoutLog.TAG_RESOURCES_FORMAT, |
| "You must supply a " + name + " attribute.", null); |
| |
| return 0; |
| } |
| } |
| |
| @Override |
| public int getLayoutDimension(int index, int defValue) { |
| return getDimensionPixelSize(index, defValue); |
| } |
| |
| private int getDimension(int index) { |
| String s = getString(index); |
| if (s == null) { |
| throw new RuntimeException(); |
| } |
| // Check if the value is a magic constant that doesn't require a unit. |
| try { |
| int i = Integer.parseInt(s); |
| if (i == LayoutParams.MATCH_PARENT || i == LayoutParams.WRAP_CONTENT) { |
| return i; |
| } |
| } catch (NumberFormatException ignored) { |
| // pass |
| } |
| if (ResourceHelper.parseFloatAttribute(mNames[index], s, mValue, true)) { |
| float f = mValue.getDimension(mBridgeResources.getDisplayMetrics()); |
| |
| final int res = (int)(f+0.5f); |
| if (res != 0) return res; |
| if (f == 0) return 0; |
| if (f > 0) return 1; |
| } |
| |
| throw new RuntimeException(); |
| } |
| |
| /** |
| * Retrieve a fractional unit attribute at <var>index</var>. |
| * |
| * @param index Index of attribute to retrieve. |
| * @param base The base value of this fraction. In other words, a |
| * standard fraction is multiplied by this value. |
| * @param pbase The parent base value of this fraction. In other |
| * words, a parent fraction (nn%p) is multiplied by this |
| * value. |
| * @param defValue Value to return if the attribute is not defined or |
| * not a resource. |
| * |
| * @return Attribute fractional value multiplied by the appropriate |
| * base value, or defValue if not defined. |
| */ |
| @Override |
| public float getFraction(int index, int base, int pbase, float defValue) { |
| String value = getString(index); |
| if (value == null) { |
| return defValue; |
| } |
| |
| if (ResourceHelper.parseFloatAttribute(mNames[index], value, mValue, false)) { |
| return mValue.getFraction(base, pbase); |
| } |
| |
| // looks like we were unable to resolve the fraction value |
| Bridge.getLog().warning(LayoutLog.TAG_RESOURCES_FORMAT, |
| String.format( |
| "\"%1$s\" in attribute \"%2$s\" cannot be converted to a fraction.", |
| value, mNames[index]), null); |
| |
| return defValue; |
| } |
| |
| /** |
| * Retrieve the resource identifier for the attribute at |
| * <var>index</var>. Note that attribute resource as resolved when |
| * the overall {@link TypedArray} object is retrieved. As a |
| * result, this function will return the resource identifier of the |
| * final resource value that was found, <em>not</em> necessarily the |
| * original resource that was specified by the attribute. |
| * |
| * @param index Index of attribute to retrieve. |
| * @param defValue Value to return if the attribute is not defined or |
| * not a resource. |
| * |
| * @return Attribute resource identifier, or defValue if not defined. |
| */ |
| @Override |
| public int getResourceId(int index, int defValue) { |
| if (index < 0 || index >= mResourceData.length) { |
| return defValue; |
| } |
| |
| // get the Resource for this index |
| ResourceValue resValue = mResourceData[index]; |
| |
| // no data, return the default value. |
| if (resValue == null) { |
| return defValue; |
| } |
| |
| // check if this is a style resource |
| if (resValue instanceof StyleResourceValue) { |
| // get the id that will represent this style. |
| return mContext.getDynamicIdByStyle((StyleResourceValue)resValue); |
| } |
| |
| // if the attribute was a reference to a resource, and not a declaration of an id (@+id), |
| // then the xml attribute value was "resolved" which leads us to a ResourceValue with a |
| // valid getType() and getName() returning a resource name. |
| // (and getValue() returning null!). We need to handle this! |
| if (resValue.getResourceType() != null) { |
| // if this is a framework id |
| if (mPlatformFile || resValue.isFramework()) { |
| // look for idName in the android R classes |
| return mContext.getFrameworkResourceValue( |
| resValue.getResourceType(), resValue.getName(), defValue); |
| } |
| |
| // look for idName in the project R class. |
| return mContext.getProjectResourceValue( |
| resValue.getResourceType(), resValue.getName(), defValue); |
| } |
| |
| // else, try to get the value, and resolve it somehow. |
| String value = resValue.getValue(); |
| if (value == null) { |
| return defValue; |
| } |
| |
| // if the value is just an integer, return it. |
| try { |
| int i = Integer.parseInt(value); |
| if (Integer.toString(i).equals(value)) { |
| return i; |
| } |
| } catch (NumberFormatException e) { |
| // pass |
| } |
| |
| // Handle the @id/<name>, @+id/<name> and @android:id/<name> |
| // We need to return the exact value that was compiled (from the various R classes), |
| // as these values can be reused internally with calls to findViewById(). |
| // There's a trick with platform layouts that not use "android:" but their IDs are in |
| // fact in the android.R and com.android.internal.R classes. |
| // The field mPlatformFile will indicate that all IDs are to be looked up in the android R |
| // classes exclusively. |
| |
| // if this is a reference to an id, find it. |
| if (value.startsWith("@id/") || value.startsWith("@+") || |
| value.startsWith("@android:id/")) { |
| |
| int pos = value.indexOf('/'); |
| String idName = value.substring(pos + 1); |
| boolean create = value.startsWith("@+"); |
| boolean isFrameworkId = |
| mPlatformFile || value.startsWith("@android") || value.startsWith("@+android"); |
| |
| // Look for the idName in project or android R class depending on isPlatform. |
| if (create) { |
| Integer idValue; |
| if (isFrameworkId) { |
| idValue = Bridge.getResourceId(ResourceType.ID, idName); |
| } else { |
| idValue = mContext.getProjectCallback().getResourceId(ResourceType.ID, idName); |
| } |
| return idValue == null ? defValue : idValue; |
| } |
| // This calls the same method as in if(create), but doesn't create a dynamic id, if |
| // one is not found. |
| if (isFrameworkId) { |
| return mContext.getFrameworkResourceValue(ResourceType.ID, idName, defValue); |
| } else { |
| return mContext.getProjectResourceValue(ResourceType.ID, idName, defValue); |
| } |
| } |
| |
| // not a direct id valid reference? resolve it |
| Integer idValue; |
| |
| if (resValue.isFramework()) { |
| idValue = Bridge.getResourceId(resValue.getResourceType(), |
| resValue.getName()); |
| } else { |
| idValue = mContext.getProjectCallback().getResourceId( |
| resValue.getResourceType(), resValue.getName()); |
| } |
| |
| if (idValue != null) { |
| return idValue; |
| } |
| |
| Bridge.getLog().warning(LayoutLog.TAG_RESOURCES_RESOLVE, |
| String.format( |
| "Unable to resolve id \"%1$s\" for attribute \"%2$s\"", value, mNames[index]), |
| resValue); |
| |
| return defValue; |
| } |
| |
| @Override |
| public int getThemeAttributeId(int index, int defValue) { |
| // TODO: Get the right Theme Attribute ID to enable caching of the drawables. |
| return defValue; |
| } |
| |
| /** |
| * Retrieve the Drawable for the attribute at <var>index</var>. This |
| * gets the resource ID of the selected attribute, and uses |
| * {@link Resources#getDrawable Resources.getDrawable} of the owning |
| * Resources object to retrieve its Drawable. |
| * |
| * @param index Index of attribute to retrieve. |
| * |
| * @return Drawable for the attribute, or null if not defined. |
| */ |
| @Override |
| public Drawable getDrawable(int index) { |
| if (!hasValue(index)) { |
| return null; |
| } |
| |
| ResourceValue value = mResourceData[index]; |
| return ResourceHelper.getDrawable(value, mContext, mTheme); |
| } |
| |
| |
| /** |
| * Retrieve the CharSequence[] for the attribute at <var>index</var>. |
| * This gets the resource ID of the selected attribute, and uses |
| * {@link Resources#getTextArray Resources.getTextArray} of the owning |
| * Resources object to retrieve its String[]. |
| * |
| * @param index Index of attribute to retrieve. |
| * |
| * @return CharSequence[] for the attribute, or null if not defined. |
| */ |
| @Override |
| public CharSequence[] getTextArray(int index) { |
| String value = getString(index); |
| if (value != null) { |
| return new CharSequence[] { value }; |
| } |
| |
| return null; |
| } |
| |
| @Override |
| public int[] extractThemeAttrs() { |
| // The drawables are always inflated with a Theme and we don't care about caching. So, |
| // just return. |
| return null; |
| } |
| |
| @Override |
| public int getChangingConfigurations() { |
| // We don't care about caching. Any change in configuration is a fresh render. So, |
| // just return. |
| return 0; |
| } |
| |
| /** |
| * Retrieve the raw TypedValue for the attribute at <var>index</var>. |
| * |
| * @param index Index of attribute to retrieve. |
| * @param outValue TypedValue object in which to place the attribute's |
| * data. |
| * |
| * @return Returns true if the value was retrieved, else false. |
| */ |
| @Override |
| public boolean getValue(int index, TypedValue outValue) { |
| String s = getString(index); |
| return s != null && ResourceHelper.parseFloatAttribute(mNames[index], s, outValue, false); |
| } |
| |
| /** |
| * Determines whether there is an attribute at <var>index</var>. |
| * |
| * @param index Index of attribute to retrieve. |
| * |
| * @return True if the attribute has a value, false otherwise. |
| */ |
| @Override |
| public boolean hasValue(int index) { |
| return index >= 0 && index < mResourceData.length && mResourceData[index] != null; |
| } |
| |
| @Override |
| public boolean hasValueOrEmpty(int index) { |
| return hasValue(index) || index >= 0 && index < mResourceData.length && |
| mEmptyIds != null && Arrays.binarySearch(mEmptyIds, index) >= 0; |
| } |
| |
| /** |
| * Retrieve the raw TypedValue for the attribute at <var>index</var> |
| * and return a temporary object holding its data. This object is only |
| * valid until the next call on to {@link TypedArray}. |
| * |
| * @param index Index of attribute to retrieve. |
| * |
| * @return Returns a TypedValue object if the attribute is defined, |
| * containing its data; otherwise returns null. (You will not |
| * receive a TypedValue whose type is TYPE_NULL.) |
| */ |
| @Override |
| public TypedValue peekValue(int index) { |
| if (index < 0 || index >= mResourceData.length) { |
| return null; |
| } |
| |
| if (getValue(index, mValue)) { |
| return mValue; |
| } |
| |
| return null; |
| } |
| |
| /** |
| * Returns a message about the parser state suitable for printing error messages. |
| */ |
| @Override |
| public String getPositionDescription() { |
| return "<internal -- stub if needed>"; |
| } |
| |
| /** |
| * Give back a previously retrieved TypedArray, for later re-use. |
| */ |
| @Override |
| public void recycle() { |
| // pass |
| } |
| |
| @Override |
| public String toString() { |
| return Arrays.toString(mResourceData); |
| } |
| |
| /** |
| * Searches for the string in the attributes (flag or enums) and returns the integer. |
| * If found, it will return an integer matching the value. |
| * |
| * @param index Index of attribute to retrieve. |
| * |
| * @return Attribute int value, or null if not defined. |
| */ |
| private Integer resolveEnumAttribute(int index) { |
| // Get the map of attribute-constant -> IntegerValue |
| Map<String, Integer> map = null; |
| if (mIsFramework[index]) { |
| map = Bridge.getEnumValues(mNames[index]); |
| } else { |
| // get the styleable matching the resolved name |
| RenderResources res = mContext.getRenderResources(); |
| ResourceValue attr = res.getProjectResource(ResourceType.ATTR, mNames[index]); |
| if (attr instanceof AttrResourceValue) { |
| map = ((AttrResourceValue) attr).getAttributeValues(); |
| } |
| } |
| |
| if (map != null) { |
| // accumulator to store the value of the 1+ constants. |
| int result = 0; |
| boolean found = false; |
| |
| // split the value in case this is a mix of several flags. |
| String[] keywords = mResourceData[index].getValue().split("\\|"); |
| for (String keyword : keywords) { |
| Integer i = map.get(keyword.trim()); |
| if (i != null) { |
| result |= i; |
| found = true; |
| } |
| // TODO: We should act smartly and log a warning for incorrect keywords. However, |
| // this method is currently called even if the resourceValue is not an enum. |
| } |
| if (found) { |
| return result; |
| } |
| } |
| |
| return null; |
| } |
| |
| static TypedArray obtain(Resources res, int len) { |
| return res instanceof BridgeResources ? |
| new BridgeTypedArray(((BridgeResources) res), null, len, true) : null; |
| } |
| } |