| /* |
| * Copyright (C) 2006 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.widget; |
| |
| import java.util.ArrayList; |
| |
| import android.annotation.Nullable; |
| import android.content.Context; |
| import android.content.res.ColorStateList; |
| import android.content.res.TypedArray; |
| import android.graphics.Canvas; |
| import android.graphics.PorterDuff; |
| import android.graphics.Rect; |
| import android.graphics.Region; |
| import android.graphics.PorterDuff.Mode; |
| import android.graphics.drawable.Drawable; |
| import android.util.AttributeSet; |
| import android.view.Gravity; |
| import android.view.View; |
| import android.view.ViewDebug; |
| import android.view.ViewGroup; |
| import android.view.accessibility.AccessibilityEvent; |
| import android.view.accessibility.AccessibilityNodeInfo; |
| import android.widget.RemoteViews.RemoteView; |
| |
| import com.android.internal.R; |
| |
| |
| /** |
| * FrameLayout is designed to block out an area on the screen to display |
| * a single item. Generally, FrameLayout should be used to hold a single child view, because it can |
| * be difficult to organize child views in a way that's scalable to different screen sizes without |
| * the children overlapping each other. You can, however, add multiple children to a FrameLayout |
| * and control their position within the FrameLayout by assigning gravity to each child, using the |
| * <a href="FrameLayout.LayoutParams.html#attr_android:layout_gravity">{@code |
| * android:layout_gravity}</a> attribute. |
| * <p>Child views are drawn in a stack, with the most recently added child on top. |
| * The size of the FrameLayout is the size of its largest child (plus padding), visible |
| * or not (if the FrameLayout's parent permits). Views that are {@link android.view.View#GONE} are |
| * used for sizing |
| * only if {@link #setMeasureAllChildren(boolean) setConsiderGoneChildrenWhenMeasuring()} |
| * is set to true. |
| * |
| * @attr ref android.R.styleable#FrameLayout_foreground |
| * @attr ref android.R.styleable#FrameLayout_foregroundGravity |
| * @attr ref android.R.styleable#FrameLayout_measureAllChildren |
| */ |
| @RemoteView |
| public class FrameLayout extends ViewGroup { |
| private static final int DEFAULT_CHILD_GRAVITY = Gravity.TOP | Gravity.START; |
| |
| @ViewDebug.ExportedProperty(category = "measurement") |
| boolean mMeasureAllChildren = false; |
| |
| @ViewDebug.ExportedProperty(category = "drawing") |
| private Drawable mForeground; |
| private ColorStateList mForegroundTint = null; |
| private PorterDuff.Mode mForegroundTintMode = PorterDuff.Mode.SRC_ATOP; |
| private boolean mHasForegroundTint = false; |
| |
| @ViewDebug.ExportedProperty(category = "padding") |
| private int mForegroundPaddingLeft = 0; |
| |
| @ViewDebug.ExportedProperty(category = "padding") |
| private int mForegroundPaddingTop = 0; |
| |
| @ViewDebug.ExportedProperty(category = "padding") |
| private int mForegroundPaddingRight = 0; |
| |
| @ViewDebug.ExportedProperty(category = "padding") |
| private int mForegroundPaddingBottom = 0; |
| |
| private final Rect mSelfBounds = new Rect(); |
| private final Rect mOverlayBounds = new Rect(); |
| |
| @ViewDebug.ExportedProperty(category = "drawing") |
| private int mForegroundGravity = Gravity.FILL; |
| |
| /** {@hide} */ |
| @ViewDebug.ExportedProperty(category = "drawing") |
| protected boolean mForegroundInPadding = true; |
| |
| boolean mForegroundBoundsChanged = false; |
| |
| private final ArrayList<View> mMatchParentChildren = new ArrayList<View>(1); |
| |
| public FrameLayout(Context context) { |
| super(context); |
| } |
| |
| public FrameLayout(Context context, AttributeSet attrs) { |
| this(context, attrs, 0); |
| } |
| |
| public FrameLayout(Context context, AttributeSet attrs, int defStyleAttr) { |
| this(context, attrs, defStyleAttr, 0); |
| } |
| |
| public FrameLayout(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) { |
| super(context, attrs, defStyleAttr, defStyleRes); |
| |
| final TypedArray a = context.obtainStyledAttributes( |
| attrs, com.android.internal.R.styleable.FrameLayout, defStyleAttr, defStyleRes); |
| |
| mForegroundGravity = a.getInt( |
| com.android.internal.R.styleable.FrameLayout_foregroundGravity, mForegroundGravity); |
| |
| final Drawable d = a.getDrawable(com.android.internal.R.styleable.FrameLayout_foreground); |
| if (d != null) { |
| setForeground(d); |
| } |
| |
| if (a.getBoolean(com.android.internal.R.styleable.FrameLayout_measureAllChildren, false)) { |
| setMeasureAllChildren(true); |
| } |
| |
| if (a.hasValue(R.styleable.FrameLayout_foregroundTint)) { |
| mForegroundTint = a.getColorStateList(R.styleable.FrameLayout_foregroundTint); |
| mForegroundTintMode = Drawable.parseTintMode(a.getInt( |
| R.styleable.FrameLayout_foregroundTintMode, -1), mForegroundTintMode); |
| mHasForegroundTint = true; |
| |
| applyForegroundTint(); |
| } |
| |
| mForegroundInPadding = a.getBoolean( |
| com.android.internal.R.styleable.FrameLayout_foregroundInsidePadding, true); |
| |
| a.recycle(); |
| } |
| |
| /** |
| * Describes how the foreground is positioned. |
| * |
| * @return foreground gravity. |
| * |
| * @see #setForegroundGravity(int) |
| * |
| * @attr ref android.R.styleable#FrameLayout_foregroundGravity |
| */ |
| public int getForegroundGravity() { |
| return mForegroundGravity; |
| } |
| |
| /** |
| * Describes how the foreground is positioned. Defaults to START and TOP. |
| * |
| * @param foregroundGravity See {@link android.view.Gravity} |
| * |
| * @see #getForegroundGravity() |
| * |
| * @attr ref android.R.styleable#FrameLayout_foregroundGravity |
| */ |
| @android.view.RemotableViewMethod |
| public void setForegroundGravity(int foregroundGravity) { |
| if (mForegroundGravity != foregroundGravity) { |
| if ((foregroundGravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) == 0) { |
| foregroundGravity |= Gravity.START; |
| } |
| |
| if ((foregroundGravity & Gravity.VERTICAL_GRAVITY_MASK) == 0) { |
| foregroundGravity |= Gravity.TOP; |
| } |
| |
| mForegroundGravity = foregroundGravity; |
| |
| |
| if (mForegroundGravity == Gravity.FILL && mForeground != null) { |
| Rect padding = new Rect(); |
| if (mForeground.getPadding(padding)) { |
| mForegroundPaddingLeft = padding.left; |
| mForegroundPaddingTop = padding.top; |
| mForegroundPaddingRight = padding.right; |
| mForegroundPaddingBottom = padding.bottom; |
| } |
| } else { |
| mForegroundPaddingLeft = 0; |
| mForegroundPaddingTop = 0; |
| mForegroundPaddingRight = 0; |
| mForegroundPaddingBottom = 0; |
| } |
| |
| requestLayout(); |
| } |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| protected boolean verifyDrawable(Drawable who) { |
| return super.verifyDrawable(who) || (who == mForeground); |
| } |
| |
| @Override |
| public void jumpDrawablesToCurrentState() { |
| super.jumpDrawablesToCurrentState(); |
| if (mForeground != null) mForeground.jumpToCurrentState(); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| protected void drawableStateChanged() { |
| super.drawableStateChanged(); |
| if (mForeground != null && mForeground.isStateful()) { |
| mForeground.setState(getDrawableState()); |
| } |
| } |
| |
| /** @hide */ |
| @Override |
| protected void setDrawableHotspot(float x, float y) { |
| super.setDrawableHotspot(x, y); |
| |
| if (mForeground != null) { |
| mForeground.setHotspot(x, y); |
| } |
| } |
| |
| /** |
| * Returns a set of layout parameters with a width of |
| * {@link android.view.ViewGroup.LayoutParams#MATCH_PARENT}, |
| * and a height of {@link android.view.ViewGroup.LayoutParams#MATCH_PARENT}. |
| */ |
| @Override |
| protected LayoutParams generateDefaultLayoutParams() { |
| return new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT); |
| } |
| |
| /** |
| * Supply a Drawable that is to be rendered on top of all of the child |
| * views in the frame layout. Any padding in the Drawable will be taken |
| * into account by ensuring that the children are inset to be placed |
| * inside of the padding area. |
| * |
| * @param d The Drawable to be drawn on top of the children. |
| * |
| * @attr ref android.R.styleable#FrameLayout_foreground |
| */ |
| public void setForeground(Drawable d) { |
| if (mForeground != d) { |
| if (mForeground != null) { |
| mForeground.setCallback(null); |
| unscheduleDrawable(mForeground); |
| } |
| |
| mForeground = d; |
| mForegroundPaddingLeft = 0; |
| mForegroundPaddingTop = 0; |
| mForegroundPaddingRight = 0; |
| mForegroundPaddingBottom = 0; |
| |
| if (d != null) { |
| setWillNotDraw(false); |
| d.setCallback(this); |
| d.setLayoutDirection(getLayoutDirection()); |
| if (d.isStateful()) { |
| d.setState(getDrawableState()); |
| } |
| applyForegroundTint(); |
| if (mForegroundGravity == Gravity.FILL) { |
| Rect padding = new Rect(); |
| if (d.getPadding(padding)) { |
| mForegroundPaddingLeft = padding.left; |
| mForegroundPaddingTop = padding.top; |
| mForegroundPaddingRight = padding.right; |
| mForegroundPaddingBottom = padding.bottom; |
| } |
| } |
| } else { |
| setWillNotDraw(true); |
| } |
| requestLayout(); |
| invalidate(); |
| } |
| } |
| |
| /** |
| * Returns the drawable used as the foreground of this FrameLayout. The |
| * foreground drawable, if non-null, is always drawn on top of the children. |
| * |
| * @return A Drawable or null if no foreground was set. |
| */ |
| public Drawable getForeground() { |
| return mForeground; |
| } |
| |
| /** |
| * Applies a tint to the foreground drawable. |
| * <p> |
| * Subsequent calls to {@link #setForeground(Drawable)} will automatically |
| * mutate the drawable and apply the specified tint and tint mode using |
| * {@link Drawable#setTint(ColorStateList, PorterDuff.Mode)}. |
| * |
| * @param tint the tint to apply, may be {@code null} to clear tint |
| * @param tintMode the blending mode used to apply the tint, may be |
| * {@code null} to clear tint |
| * |
| * @attr ref android.R.styleable#FrameLayout_foregroundTint |
| * @attr ref android.R.styleable#FrameLayout_foregroundTintMode |
| * @see Drawable#setTint(ColorStateList, PorterDuff.Mode) |
| */ |
| private void setForegroundTint(@Nullable ColorStateList tint, |
| @Nullable PorterDuff.Mode tintMode) { |
| mForegroundTint = tint; |
| mForegroundTintMode = tintMode; |
| mHasForegroundTint = true; |
| |
| applyForegroundTint(); |
| } |
| |
| /** |
| * Applies a tint to the foreground drawable. Does not modify the current |
| * tint mode, which is {@link PorterDuff.Mode#SRC_ATOP} by default. |
| * <p> |
| * Subsequent calls to {@link #setForeground(Drawable)} will automatically |
| * mutate the drawable and apply the specified tint and tint mode using |
| * {@link Drawable#setTint(ColorStateList, PorterDuff.Mode)}. |
| * |
| * @param tint the tint to apply, may be {@code null} to clear tint |
| * |
| * @attr ref android.R.styleable#FrameLayout_foregroundTint |
| * @see #setForegroundTint(ColorStateList, PorterDuff.Mode) |
| */ |
| public void setForegroundTint(@Nullable ColorStateList tint) { |
| setForegroundTint(tint, mForegroundTintMode); |
| } |
| |
| /** |
| * @return the tint applied to the foreground drawable |
| * @attr ref android.R.styleable#FrameLayout_foregroundTint |
| * @see #setForegroundTint(ColorStateList, PorterDuff.Mode) |
| */ |
| @Nullable |
| public ColorStateList getForegroundTint() { |
| return mForegroundTint; |
| } |
| |
| /** |
| * Specifies the blending mode used to apply the tint specified by |
| * {@link #setForegroundTint(ColorStateList)}} to the foreground drawable. |
| * The default mode is {@link PorterDuff.Mode#SRC_ATOP}. |
| * |
| * @param tintMode the blending mode used to apply the tint, may be |
| * {@code null} to clear tint |
| * @attr ref android.R.styleable#FrameLayout_foregroundTintMode |
| * @see #setForegroundTint(ColorStateList) |
| */ |
| public void setForegroundTintMode(@Nullable PorterDuff.Mode tintMode) { |
| setForegroundTint(mForegroundTint, tintMode); |
| } |
| |
| /** |
| * @return the blending mode used to apply the tint to the foreground |
| * drawable |
| * @attr ref android.R.styleable#FrameLayout_foregroundTintMode |
| * @see #setForegroundTint(ColorStateList, PorterDuff.Mode) |
| */ |
| @Nullable |
| public PorterDuff.Mode getForegroundTintMode() { |
| return mForegroundTintMode; |
| } |
| |
| private void applyForegroundTint() { |
| if (mForeground != null && mHasForegroundTint) { |
| mForeground = mForeground.mutate(); |
| mForeground.setTint(mForegroundTint, mForegroundTintMode); |
| } |
| } |
| |
| int getPaddingLeftWithForeground() { |
| return mForegroundInPadding ? Math.max(mPaddingLeft, mForegroundPaddingLeft) : |
| mPaddingLeft + mForegroundPaddingLeft; |
| } |
| |
| int getPaddingRightWithForeground() { |
| return mForegroundInPadding ? Math.max(mPaddingRight, mForegroundPaddingRight) : |
| mPaddingRight + mForegroundPaddingRight; |
| } |
| |
| private int getPaddingTopWithForeground() { |
| return mForegroundInPadding ? Math.max(mPaddingTop, mForegroundPaddingTop) : |
| mPaddingTop + mForegroundPaddingTop; |
| } |
| |
| private int getPaddingBottomWithForeground() { |
| return mForegroundInPadding ? Math.max(mPaddingBottom, mForegroundPaddingBottom) : |
| mPaddingBottom + mForegroundPaddingBottom; |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { |
| int count = getChildCount(); |
| |
| final boolean measureMatchParentChildren = |
| MeasureSpec.getMode(widthMeasureSpec) != MeasureSpec.EXACTLY || |
| MeasureSpec.getMode(heightMeasureSpec) != MeasureSpec.EXACTLY; |
| mMatchParentChildren.clear(); |
| |
| int maxHeight = 0; |
| int maxWidth = 0; |
| int childState = 0; |
| |
| for (int i = 0; i < count; i++) { |
| final View child = getChildAt(i); |
| if (mMeasureAllChildren || child.getVisibility() != GONE) { |
| measureChildWithMargins(child, widthMeasureSpec, 0, heightMeasureSpec, 0); |
| final LayoutParams lp = (LayoutParams) child.getLayoutParams(); |
| maxWidth = Math.max(maxWidth, |
| child.getMeasuredWidth() + lp.leftMargin + lp.rightMargin); |
| maxHeight = Math.max(maxHeight, |
| child.getMeasuredHeight() + lp.topMargin + lp.bottomMargin); |
| childState = combineMeasuredStates(childState, child.getMeasuredState()); |
| if (measureMatchParentChildren) { |
| if (lp.width == LayoutParams.MATCH_PARENT || |
| lp.height == LayoutParams.MATCH_PARENT) { |
| mMatchParentChildren.add(child); |
| } |
| } |
| } |
| } |
| |
| // Account for padding too |
| maxWidth += getPaddingLeftWithForeground() + getPaddingRightWithForeground(); |
| maxHeight += getPaddingTopWithForeground() + getPaddingBottomWithForeground(); |
| |
| // Check against our minimum height and width |
| maxHeight = Math.max(maxHeight, getSuggestedMinimumHeight()); |
| maxWidth = Math.max(maxWidth, getSuggestedMinimumWidth()); |
| |
| // Check against our foreground's minimum height and width |
| final Drawable drawable = getForeground(); |
| if (drawable != null) { |
| maxHeight = Math.max(maxHeight, drawable.getMinimumHeight()); |
| maxWidth = Math.max(maxWidth, drawable.getMinimumWidth()); |
| } |
| |
| setMeasuredDimension(resolveSizeAndState(maxWidth, widthMeasureSpec, childState), |
| resolveSizeAndState(maxHeight, heightMeasureSpec, |
| childState << MEASURED_HEIGHT_STATE_SHIFT)); |
| |
| count = mMatchParentChildren.size(); |
| if (count > 1) { |
| for (int i = 0; i < count; i++) { |
| final View child = mMatchParentChildren.get(i); |
| |
| final MarginLayoutParams lp = (MarginLayoutParams) child.getLayoutParams(); |
| int childWidthMeasureSpec; |
| int childHeightMeasureSpec; |
| |
| if (lp.width == LayoutParams.MATCH_PARENT) { |
| childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth() - |
| getPaddingLeftWithForeground() - getPaddingRightWithForeground() - |
| lp.leftMargin - lp.rightMargin, |
| MeasureSpec.EXACTLY); |
| } else { |
| childWidthMeasureSpec = getChildMeasureSpec(widthMeasureSpec, |
| getPaddingLeftWithForeground() + getPaddingRightWithForeground() + |
| lp.leftMargin + lp.rightMargin, |
| lp.width); |
| } |
| |
| if (lp.height == LayoutParams.MATCH_PARENT) { |
| childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight() - |
| getPaddingTopWithForeground() - getPaddingBottomWithForeground() - |
| lp.topMargin - lp.bottomMargin, |
| MeasureSpec.EXACTLY); |
| } else { |
| childHeightMeasureSpec = getChildMeasureSpec(heightMeasureSpec, |
| getPaddingTopWithForeground() + getPaddingBottomWithForeground() + |
| lp.topMargin + lp.bottomMargin, |
| lp.height); |
| } |
| |
| child.measure(childWidthMeasureSpec, childHeightMeasureSpec); |
| } |
| } |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| protected void onLayout(boolean changed, int left, int top, int right, int bottom) { |
| layoutChildren(left, top, right, bottom, false /* no force left gravity */); |
| } |
| |
| void layoutChildren(int left, int top, int right, int bottom, |
| boolean forceLeftGravity) { |
| final int count = getChildCount(); |
| |
| final int parentLeft = getPaddingLeftWithForeground(); |
| final int parentRight = right - left - getPaddingRightWithForeground(); |
| |
| final int parentTop = getPaddingTopWithForeground(); |
| final int parentBottom = bottom - top - getPaddingBottomWithForeground(); |
| |
| mForegroundBoundsChanged = true; |
| |
| for (int i = 0; i < count; i++) { |
| final View child = getChildAt(i); |
| if (child.getVisibility() != GONE) { |
| final LayoutParams lp = (LayoutParams) child.getLayoutParams(); |
| |
| final int width = child.getMeasuredWidth(); |
| final int height = child.getMeasuredHeight(); |
| |
| int childLeft; |
| int childTop; |
| |
| int gravity = lp.gravity; |
| if (gravity == -1) { |
| gravity = DEFAULT_CHILD_GRAVITY; |
| } |
| |
| final int layoutDirection = getLayoutDirection(); |
| final int absoluteGravity = Gravity.getAbsoluteGravity(gravity, layoutDirection); |
| final int verticalGravity = gravity & Gravity.VERTICAL_GRAVITY_MASK; |
| |
| switch (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) { |
| case Gravity.CENTER_HORIZONTAL: |
| childLeft = parentLeft + (parentRight - parentLeft - width) / 2 + |
| lp.leftMargin - lp.rightMargin; |
| break; |
| case Gravity.RIGHT: |
| if (!forceLeftGravity) { |
| childLeft = parentRight - width - lp.rightMargin; |
| break; |
| } |
| case Gravity.LEFT: |
| default: |
| childLeft = parentLeft + lp.leftMargin; |
| } |
| |
| switch (verticalGravity) { |
| case Gravity.TOP: |
| childTop = parentTop + lp.topMargin; |
| break; |
| case Gravity.CENTER_VERTICAL: |
| childTop = parentTop + (parentBottom - parentTop - height) / 2 + |
| lp.topMargin - lp.bottomMargin; |
| break; |
| case Gravity.BOTTOM: |
| childTop = parentBottom - height - lp.bottomMargin; |
| break; |
| default: |
| childTop = parentTop + lp.topMargin; |
| } |
| |
| child.layout(childLeft, childTop, childLeft + width, childTop + height); |
| } |
| } |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| protected void onSizeChanged(int w, int h, int oldw, int oldh) { |
| super.onSizeChanged(w, h, oldw, oldh); |
| mForegroundBoundsChanged = true; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public void draw(Canvas canvas) { |
| super.draw(canvas); |
| |
| if (mForeground != null) { |
| final Drawable foreground = mForeground; |
| |
| if (mForegroundBoundsChanged) { |
| mForegroundBoundsChanged = false; |
| final Rect selfBounds = mSelfBounds; |
| final Rect overlayBounds = mOverlayBounds; |
| |
| final int w = mRight-mLeft; |
| final int h = mBottom-mTop; |
| |
| if (mForegroundInPadding) { |
| selfBounds.set(0, 0, w, h); |
| } else { |
| selfBounds.set(mPaddingLeft, mPaddingTop, w - mPaddingRight, h - mPaddingBottom); |
| } |
| |
| final int layoutDirection = getLayoutDirection(); |
| Gravity.apply(mForegroundGravity, foreground.getIntrinsicWidth(), |
| foreground.getIntrinsicHeight(), selfBounds, overlayBounds, |
| layoutDirection); |
| foreground.setBounds(overlayBounds); |
| } |
| |
| foreground.draw(canvas); |
| } |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public boolean gatherTransparentRegion(Region region) { |
| boolean opaque = super.gatherTransparentRegion(region); |
| if (region != null && mForeground != null) { |
| applyDrawableToTransparentRegion(mForeground, region); |
| } |
| return opaque; |
| } |
| |
| /** |
| * Sets whether to consider all children, or just those in |
| * the VISIBLE or INVISIBLE state, when measuring. Defaults to false. |
| * |
| * @param measureAll true to consider children marked GONE, false otherwise. |
| * Default value is false. |
| * |
| * @attr ref android.R.styleable#FrameLayout_measureAllChildren |
| */ |
| @android.view.RemotableViewMethod |
| public void setMeasureAllChildren(boolean measureAll) { |
| mMeasureAllChildren = measureAll; |
| } |
| |
| /** |
| * Determines whether all children, or just those in the VISIBLE or |
| * INVISIBLE state, are considered when measuring. |
| * |
| * @return Whether all children are considered when measuring. |
| * |
| * @deprecated This method is deprecated in favor of |
| * {@link #getMeasureAllChildren() getMeasureAllChildren()}, which was |
| * renamed for consistency with |
| * {@link #setMeasureAllChildren(boolean) setMeasureAllChildren()}. |
| */ |
| @Deprecated |
| public boolean getConsiderGoneChildrenWhenMeasuring() { |
| return getMeasureAllChildren(); |
| } |
| |
| /** |
| * Determines whether all children, or just those in the VISIBLE or |
| * INVISIBLE state, are considered when measuring. |
| * |
| * @return Whether all children are considered when measuring. |
| */ |
| public boolean getMeasureAllChildren() { |
| return mMeasureAllChildren; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public LayoutParams generateLayoutParams(AttributeSet attrs) { |
| return new FrameLayout.LayoutParams(getContext(), attrs); |
| } |
| |
| @Override |
| public boolean shouldDelayChildPressedState() { |
| return false; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { |
| return p instanceof LayoutParams; |
| } |
| |
| @Override |
| protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { |
| return new LayoutParams(p); |
| } |
| |
| |
| @Override |
| public void onInitializeAccessibilityEvent(AccessibilityEvent event) { |
| super.onInitializeAccessibilityEvent(event); |
| event.setClassName(FrameLayout.class.getName()); |
| } |
| |
| @Override |
| public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { |
| super.onInitializeAccessibilityNodeInfo(info); |
| info.setClassName(FrameLayout.class.getName()); |
| } |
| |
| /** |
| * Per-child layout information for layouts that support margins. |
| * See {@link android.R.styleable#FrameLayout_Layout FrameLayout Layout Attributes} |
| * for a list of all child view attributes that this class supports. |
| * |
| * @attr ref android.R.styleable#FrameLayout_Layout_layout_gravity |
| */ |
| public static class LayoutParams extends MarginLayoutParams { |
| /** |
| * The gravity to apply with the View to which these layout parameters |
| * are associated. |
| * |
| * @see android.view.Gravity |
| * |
| * @attr ref android.R.styleable#FrameLayout_Layout_layout_gravity |
| */ |
| public int gravity = -1; |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public LayoutParams(Context c, AttributeSet attrs) { |
| super(c, attrs); |
| |
| TypedArray a = c.obtainStyledAttributes(attrs, com.android.internal.R.styleable.FrameLayout_Layout); |
| gravity = a.getInt(com.android.internal.R.styleable.FrameLayout_Layout_layout_gravity, -1); |
| a.recycle(); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public LayoutParams(int width, int height) { |
| super(width, height); |
| } |
| |
| /** |
| * Creates a new set of layout parameters with the specified width, height |
| * and weight. |
| * |
| * @param width the width, either {@link #MATCH_PARENT}, |
| * {@link #WRAP_CONTENT} or a fixed size in pixels |
| * @param height the height, either {@link #MATCH_PARENT}, |
| * {@link #WRAP_CONTENT} or a fixed size in pixels |
| * @param gravity the gravity |
| * |
| * @see android.view.Gravity |
| */ |
| public LayoutParams(int width, int height, int gravity) { |
| super(width, height); |
| this.gravity = gravity; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public LayoutParams(ViewGroup.LayoutParams source) { |
| super(source); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public LayoutParams(ViewGroup.MarginLayoutParams source) { |
| super(source); |
| } |
| |
| /** |
| * Copy constructor. Clones the width, height, margin values, and |
| * gravity of the source. |
| * |
| * @param source The layout params to copy from. |
| */ |
| public LayoutParams(LayoutParams source) { |
| super(source); |
| |
| this.gravity = source.gravity; |
| } |
| } |
| } |