Examples with TypedValue android.util.TypedValue used on opensource projects

Example 21 with TypedValue

use of android.util.TypedValue in project android_frameworks_base by ParanoidAndroid.

the class Resources method getDimensionPixelOffset.

/**
     * Retrieve a dimensional for a particular resource ID 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 id The desired resource identifier, as generated by the aapt
     *           tool. This integer encodes the package, type, and resource
     *           entry. The value 0 is an invalid identifier.
     * 
     * @return Resource dimension value multiplied by the appropriate 
     * metric and truncated to integer pixels.
     * 
     * @throws NotFoundException Throws NotFoundException if the given ID does not exist.
     *
     * @see #getDimension
     * @see #getDimensionPixelSize
     */
public int getDimensionPixelOffset(int id) throws NotFoundException {
    synchronized (mAccessLock) {
        TypedValue value = mTmpValue;
        if (value == null) {
            mTmpValue = value = new TypedValue();
        }
        getValue(id, value, true);
        if (value.type == TypedValue.TYPE_DIMENSION) {
            return TypedValue.complexToDimensionPixelOffset(value.data, mMetrics);
        }
        throw new NotFoundException("Resource ID #0x" + Integer.toHexString(id) + " type #0x" + Integer.toHexString(value.type) + " is not valid");
    }
}

Example 22 with TypedValue

use of android.util.TypedValue in project android_frameworks_base by ParanoidAndroid.

the class Resources method openRawResourceFd.

/**
     * Open a file descriptor for reading a raw resource.  This can only be used
     * with resources whose value is the name of an asset files -- that is, it can be
     * used to open drawable, sound, and raw resources; it will fail on string
     * and color resources.
     * 
     * <p>This function only works for resources that are stored in the package
     * as uncompressed data, which typically includes things like mp3 files
     * and png images.
     * 
     * @param id The resource identifier to open, as generated by the appt
     *           tool.
     * 
     * @return AssetFileDescriptor A new file descriptor you can use to read
     * the resource.  This includes the file descriptor itself, as well as the
     * offset and length of data where the resource appears in the file.  A
     * null is returned if the file exists but is compressed.
     *
     * @throws NotFoundException Throws NotFoundException if the given ID does not exist.
     * 
     */
public AssetFileDescriptor openRawResourceFd(int id) throws NotFoundException {
    TypedValue value;
    synchronized (mAccessLock) {
        value = mTmpValue;
        if (value == null) {
            value = new TypedValue();
        } else {
            mTmpValue = null;
        }
        getValue(id, value, true);
    }
    try {
        return mAssets.openNonAssetFd(value.assetCookie, value.string.toString());
    } catch (Exception e) {
        NotFoundException rnf = new NotFoundException("File " + value.string.toString() + " from drawable resource ID #0x" + Integer.toHexString(id));
        rnf.initCause(e);
        throw rnf;
    } finally {
        synchronized (mAccessLock) {
            if (mTmpValue == null) {
                mTmpValue = value;
            }
        }
    }
}

Example 23 with TypedValue

use of android.util.TypedValue in project android_frameworks_base by ParanoidAndroid.

the class Resources method getDrawableForDensity.

/**
     * Return a drawable object associated with a particular resource ID for the
     * given screen density in DPI. This will set the drawable's density to be
     * the device's density multiplied by the ratio of actual drawable density
     * to requested density. This allows the drawable to be scaled up to the
     * correct size if needed. Various types of objects will be returned
     * depending on the underlying resource -- for example, a solid color, PNG
     * image, scalable image, etc. The Drawable API hides these implementation
     * details.
     * 
     * @param id The desired resource identifier, as generated by the aapt tool.
     *            This integer encodes the package, type, and resource entry.
     *            The value 0 is an invalid identifier.
     * @param density the desired screen density indicated by the resource as
     *            found in {@link DisplayMetrics}.
     * @throws NotFoundException Throws NotFoundException if the given ID does
     *             not exist.
     * @return Drawable An object that can be used to draw this resource.
     */
public Drawable getDrawableForDensity(int id, int density) throws NotFoundException {
    TypedValue value;
    synchronized (mAccessLock) {
        value = mTmpValue;
        if (value == null) {
            value = new TypedValue();
        } else {
            mTmpValue = null;
        }
        getValueForDensity(id, density, value, true);
        /*
             * Pretend the requested density is actually the display density. If
             * the drawable returned is not the requested density, then force it
             * to be scaled later by dividing its density by the ratio of
             * requested density to actual device density. Drawables that have
             * undefined density or no density don't need to be handled here.
             */
        if (value.density > 0 && value.density != TypedValue.DENSITY_NONE) {
            if (value.density == density) {
                value.density = mMetrics.densityDpi;
            } else {
                value.density = (value.density * mMetrics.densityDpi) / density;
            }
        }
    }
    Drawable res = loadDrawable(value, id);
    synchronized (mAccessLock) {
        if (mTmpValue == null) {
            mTmpValue = value;
        }
    }
    return res;
}

Example 24 with TypedValue

use of android.util.TypedValue in project android_frameworks_base by ParanoidAndroid.

the class Resources method getInteger.

/**
     * Return an integer associated with a particular resource ID.
     *
     * @param id The desired resource identifier, as generated by the aapt
     *           tool. This integer encodes the package, type, and resource
     *           entry. The value 0 is an invalid identifier.
     *
     * @throws NotFoundException Throws NotFoundException if the given ID does not exist.
     *
     * @return Returns the integer value contained in the resource.
     */
public int getInteger(int id) throws NotFoundException {
    synchronized (mAccessLock) {
        TypedValue value = mTmpValue;
        if (value == null) {
            mTmpValue = value = new TypedValue();
        }
        getValue(id, value, true);
        if (value.type >= TypedValue.TYPE_FIRST_INT && value.type <= TypedValue.TYPE_LAST_INT) {
            return value.data;
        }
        throw new NotFoundException("Resource ID #0x" + Integer.toHexString(id) + " type #0x" + Integer.toHexString(value.type) + " is not valid");
    }
}

Example 25 with TypedValue

use of android.util.TypedValue in project android_frameworks_base by ParanoidAndroid.

the class Resources method loadXmlResourceParser.

/*package*/
XmlResourceParser loadXmlResourceParser(int id, String type) throws NotFoundException {
    synchronized (mAccessLock) {
        TypedValue value = mTmpValue;
        if (value == null) {
            mTmpValue = value = new TypedValue();
        }
        getValue(id, value, true);
        if (value.type == TypedValue.TYPE_STRING) {
            return loadXmlResourceParser(value.string.toString(), id, value.assetCookie, type);
        }
        throw new NotFoundException("Resource ID #0x" + Integer.toHexString(id) + " type #0x" + Integer.toHexString(value.type) + " is not valid");
    }
}