android.view.accessibility.AccessibilityNodeInfo#obtain ( )源码实例Demo

下面列出了android.view.accessibility.AccessibilityNodeInfo#obtain ( ) 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。

源代码1 项目： android-chromium 文件： BrowserAccessibilityManager.java

/**
 * @see AccessibilityNodeProvider#createAccessibilityNodeInfo(int)
 */
protected AccessibilityNodeInfo createAccessibilityNodeInfo(int virtualViewId) {
    if (!mAccessibilityManager.isEnabled() || mNativeObj == 0 || !mFrameInfoInitialized) {
        return null;
    }

    int rootId = nativeGetRootId(mNativeObj);
    if (virtualViewId == View.NO_ID) {
        virtualViewId = rootId;
    }
    if (mAccessibilityFocusId == View.NO_ID) {
        mAccessibilityFocusId = rootId;
    }

    final AccessibilityNodeInfo info = AccessibilityNodeInfo.obtain(mView);
    info.setPackageName(mContentViewCore.getContext().getPackageName());
    info.setSource(mView, virtualViewId);

    if (nativePopulateAccessibilityNodeInfo(mNativeObj, info, virtualViewId)) {
        return info;
    } else {
        return null;
    }
}

源代码2 项目： android-AutofillFramework 文件： AbstractCustomVirtualView.java

protected AccessibilityNodeInfo provideAccessibilityNodeInfo(View parent, Context context) {
    final AccessibilityNodeInfo node = AccessibilityNodeInfo.obtain();
    node.setSource(parent, id);
    node.setPackageName(context.getPackageName());
    node.setClassName(getClassName());
    node.setEditable(editable);
    node.setViewIdResourceName(idEntry);
    node.setVisibleToUser(true);
    final Rect absBounds = line.getAbsCoordinates();
    if (absBounds != null) {
        node.setBoundsInScreen(absBounds);
    }
    if (TextUtils.getTrimmedLength(text) > 0) {
        // TODO: Must checked trimmed length because input fields use 8 empty spaces to
        // set width
        node.setText(text);
    }
    return node;
}

源代码3 项目： android-AutofillFramework 文件： CustomVirtualViewCompatMode.java

private AccessibilityNodeInfo onProvideAutofillCompatModeAccessibilityNodeInfo() {
    final AccessibilityNodeInfo node = AccessibilityNodeInfo.obtain();

    final String packageName = getContext().getPackageName();
    node.setPackageName(packageName);
    node.setClassName(getClass().getName());

    final int childrenSize = mVirtualViews.size();
    for (int i = 0; i < childrenSize; i++) {
        final Item item = mVirtualViews.valueAt(i);
        if (DEBUG) {
            Log.d(TAG, "Adding new A11Y child with id " + item.id + ": " + item);
        }
        node.addChild(this, item.id);
    }
    return node;
}

源代码4 项目： android-chromium 文件： BrowserAccessibilityManager.java

/**
 * @see AccessibilityNodeProvider#createAccessibilityNodeInfo(int)
 */
protected AccessibilityNodeInfo createAccessibilityNodeInfo(int virtualViewId) {
    if (!mAccessibilityManager.isEnabled() || mNativeObj == 0 || !mFrameInfoInitialized) {
        return null;
    }

    int rootId = nativeGetRootId(mNativeObj);
    if (virtualViewId == View.NO_ID) {
        virtualViewId = rootId;
    }
    if (mAccessibilityFocusId == View.NO_ID) {
        mAccessibilityFocusId = rootId;
    }

    final AccessibilityNodeInfo info = AccessibilityNodeInfo.obtain(mView);
    info.setPackageName(mContentViewCore.getContext().getPackageName());
    info.setSource(mView, virtualViewId);

    if (nativePopulateAccessibilityNodeInfo(mNativeObj, info, virtualViewId)) {
        return info;
    } else {
        return null;
    }
}

源代码5 项目： android_9.0.0_r45 文件： NumberPicker.java

private AccessibilityNodeInfo createAccessibilityNodeInfoForVirtualButton(int virtualViewId,
        String text, int left, int top, int right, int bottom) {
    AccessibilityNodeInfo info = AccessibilityNodeInfo.obtain();
    info.setClassName(Button.class.getName());
    info.setPackageName(mContext.getPackageName());
    info.setSource(NumberPicker.this, virtualViewId);
    info.setParent(NumberPicker.this);
    info.setText(text);
    info.setClickable(true);
    info.setLongClickable(true);
    info.setEnabled(NumberPicker.this.isEnabled());
    Rect boundsInParent = mTempRect;
    boundsInParent.set(left, top, right, bottom);
    info.setVisibleToUser(isVisibleToUser(boundsInParent));
    info.setBoundsInParent(boundsInParent);
    Rect boundsInScreen = boundsInParent;
    int[] locationOnScreen = mTempArray;
    getLocationOnScreen(locationOnScreen);
    boundsInScreen.offset(locationOnScreen[0], locationOnScreen[1]);
    info.setBoundsInScreen(boundsInScreen);

    if (mAccessibilityFocusedView != virtualViewId) {
        info.addAction(AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS);
    }
    if (mAccessibilityFocusedView == virtualViewId) {
        info.addAction(AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS);
    }
    if (NumberPicker.this.isEnabled()) {
        info.addAction(AccessibilityNodeInfo.ACTION_CLICK);
    }

    return info;
}

源代码6 项目： oversec 文件： OversecAccessibilityService.java

private void checkFocusedNode_PreLollipop(AccessibilityNodeInfo node) {
    //if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.LOLLIPOP) return;
    //need to keep that anyway if we want to find focus in WebViews
    synchronized (mSEMAPHORE_FocusedNode_PreLollipop) {

        if (node.isFocused()) {
            mFocusedNode_PreLollipop_INTRANSACTION = AccessibilityNodeInfo.obtain(node);
        }
    }
}

源代码7 项目： brailleback 文件： CustomLabelManager.java

/**
 * Creates a {@link Label} and persists it to the label database, and
 * refreshes the label cache.
 * <p>
 * NOTE: This method will not attempt to recycle {@code node}.
 *
 * @param node The node to label
 * @param userLabel The label provided for the node by the user
 */
public void addLabel(AccessibilityNodeInfo node, String userLabel) {
    if (node == null) {
        throw new IllegalArgumentException("Attempted to add a label for a null node.");
    }

    final AccessibilityNodeInfo internalNodeCopy = AccessibilityNodeInfo.obtain(node);
    addLabel(internalNodeCopy.getViewIdResourceName(), userLabel);
    internalNodeCopy.recycle();
}

源代码8 项目： android-chromium 文件： WriteData.java

/**
 * Returns a new {@link WriteData} instance for the given {@code view}.
 */
public static WriteData forView(View view) {
    AccessibilityNodeInfo node = AccessibilityNodeInfo.obtain(view);
    WriteData writeData = new WriteData();
    writeData.mAccessibilityNodeInfo = node;
    return writeData;
}

源代码9 项目： MultiSlider 文件： MultiSlider.java

@Override
public AccessibilityNodeInfo createAccessibilityNodeInfo(int thumbId) {
    AccessibilityNodeInfo info = null;
    if (thumbId == View.NO_ID) {
        // We are requested to create an AccessibilityNodeInfo describing
        // this View, i.e. the root of the virtual sub-tree. Note that the
        // host View has an AccessibilityNodeProvider which means that this
        // provider is responsible for creating the node info for that root.
        info = AccessibilityNodeInfo.obtain(MultiSlider.this);
        onInitializeAccessibilityNodeInfo(info);
        // Add the virtual children of the root View.
        final int childCount = mThumbs.size();
        for (int i = 0; i < childCount; i++) {
            info.addChild(MultiSlider.this, i);
        }
        if (mThumbs.size() == 1) {
            info.setScrollable(true);
            if (Build.VERSION.SDK_INT >= 21) {
                info.addAction(ACTION_SET_PROGRESS);
                info.addAction(ACTION_SCROLL_BACKWARD);
                info.addAction(ACTION_SCROLL_FORWARD);
            } else {
                info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD);
                info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_FORWARD);
            }

        }

    } else {
        // Find the view that corresponds to the given id.
        Thumb thumb = mThumbs.get(thumbId);
        if (thumb == null) {
            return null;
        }
        // Obtain and initialize an AccessibilityNodeInfo with
        // information about the virtual view.
        info = AccessibilityNodeInfo.obtain(MultiSlider.this, thumbId);
        info.setClassName(thumb.getClass().getName());
        info.setParent(MultiSlider.this);
        info.setSource(MultiSlider.this, thumbId);
        info.setContentDescription("Multi-Slider thumb no:" + thumbId);

        if (Build.VERSION.SDK_INT >= 21) {
            info.addAction(ACTION_SET_PROGRESS);
            if (thumb.getPossibleMax() > thumb.value) {
                info.addAction(ACTION_SCROLL_BACKWARD);
            }
            if (thumb.getPossibleMax() > thumb.value) {
                info.addAction(ACTION_SCROLL_FORWARD);
            }

        } else {
            if (thumb.getPossibleMin() > thumb.value) {
                info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD);
            }
            if (thumb.getPossibleMax() > thumb.value) {
                info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_FORWARD);
            }
        }


        if (thumb.getThumb() != null) {
            int[] loc = new int[2];
            getLocationOnScreen(loc);
            Rect rect = thumb.getThumb().copyBounds();
            rect.top += loc[1];
            rect.left += loc[0];
            rect.right += loc[0];
            rect.bottom += loc[1];
            info.setBoundsInScreen(rect);
            //TODO somehow this resuls in [0,0][0,0]. wonder check why
            //info.setBoundsInParent(rect);

        }

        info.setText(thumb.tag + ": " + thumb.value);
        info.setEnabled(thumb.isEnabled());
        if (Build.VERSION.SDK_INT >= 24) {
            info.setImportantForAccessibility(true);
        }
        info.setVisibleToUser(true);
        info.setScrollable(true);
    }
    return info;
}

源代码10 项目： V.FlyoutTest 文件： AccessibilityNodeInfoCompatIcs.java

public static Object obtain() {
    return AccessibilityNodeInfo.obtain();
}

源代码11 项目： CodenameOne 文件： AccessibilityNodeInfoCompatIcs.java

public static Object obtain(View source) {
    return AccessibilityNodeInfo.obtain(source);
}

源代码12 项目： CodenameOne 文件： AccessibilityNodeInfoCompatIcs.java

public static Object obtain() {
    return AccessibilityNodeInfo.obtain();
}

源代码13 项目： CodenameOne 文件： AccessibilityNodeInfoCompatJellyBean.java

public static Object obtain(View root, int virtualDescendantId) {
    return AccessibilityNodeInfo.obtain(root, virtualDescendantId);
}

源代码14 项目： zen4android 文件： NumberPicker.java

private AccessibilityNodeInfo createAccessibilityNodeInfoForNumberPicker(int left, int top,
        int right, int bottom) {
    AccessibilityNodeInfo info = AccessibilityNodeInfo.obtain();
    info.setClassName(NumberPicker.class.getName());
    info.setPackageName(getContext().getPackageName());
    info.setSource(NumberPicker.this);

    if (hasVirtualDecrementButton()) {
        info.addChild(NumberPicker.this, VIRTUAL_VIEW_ID_DECREMENT);
    }
    info.addChild(NumberPicker.this, VIRTUAL_VIEW_ID_INPUT);
    if (hasVirtualIncrementButton()) {
        info.addChild(NumberPicker.this, VIRTUAL_VIEW_ID_INCREMENT);
    }

    info.setParent((View) getParentForAccessibility());
    info.setEnabled(NumberPicker.this.isEnabled());
    info.setScrollable(true);

    /** TODO: Figure out compat implementation for this
    final float applicationScale =
            getContext().getResources().getCompatibilityInfo().applicationScale;

    Rect boundsInParent = mTempRect;
    boundsInParent.set(left, top, right, bottom);
    boundsInParent.scale(applicationScale);
    info.setBoundsInParent(boundsInParent);

    info.setVisibleToUser(isVisibleToUser());

    Rect boundsInScreen = boundsInParent;
    int[] locationOnScreen = mTempArray;
    getLocationOnScreen(locationOnScreen);
    boundsInScreen.offset(locationOnScreen[0], locationOnScreen[1]);
    boundsInScreen.scale(applicationScale);
    info.setBoundsInScreen(boundsInScreen);
     */

    if (mAccessibilityFocusedView != View.NO_ID) {
        info.addAction(AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS);
    }
    if (mAccessibilityFocusedView == View.NO_ID) {
        info.addAction(AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS);
    }
    if (NumberPicker.this.isEnabled()) {
        if (getWrapSelectorWheel() || getValue() < getMaxValue()) {
            info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_FORWARD);
        }
        if (getWrapSelectorWheel() || getValue() > getMinValue()) {
            info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD);
        }
    }

    return info;
}

源代码15 项目： talkback 文件： AccessibilityNodeInfoUtils.java

/** Safely obtains a copy of node. Caller must recycle returned node info. */
public static AccessibilityNodeInfo obtain(AccessibilityNodeInfo node) {
  return (node == null) ? null : AccessibilityNodeInfo.obtain(node);
}

源代码16 项目： V.FlyoutTest 文件： AccessibilityNodeInfoCompatIcs.java

public static Object obtain(Object info) {
    return AccessibilityNodeInfo.obtain((AccessibilityNodeInfo) info);
}

源代码17 项目： CodenameOne 文件： AccessibilityNodeInfoCompatIcs.java

public static Object obtain(Object info) {
    return AccessibilityNodeInfo.obtain((AccessibilityNodeInfo) info);
}

源代码18 项目： NewXmPluginSDK 文件： NumberPicker.java

private AccessibilityNodeInfo createAccessibilityNodeInfoForNumberPicker(int left, int top,
        int right, int bottom) {
    AccessibilityNodeInfo info = AccessibilityNodeInfo.obtain();
    info.setClassName(NumberPicker.class.getName());
    info.setPackageName(getContext().getPackageName());
    info.setSource(NumberPicker.this);

    if (hasVirtualDecrementButton()) {
        info.addChild(NumberPicker.this, VIRTUAL_VIEW_ID_DECREMENT);
    }
    info.addChild(NumberPicker.this, VIRTUAL_VIEW_ID_INPUT);
    if (hasVirtualIncrementButton()) {
        info.addChild(NumberPicker.this, VIRTUAL_VIEW_ID_INCREMENT);
    }

    info.setParent((View) getParentForAccessibility());
    info.setEnabled(NumberPicker.this.isEnabled());
    info.setScrollable(true);

    Rect boundsInParent = mTempRect;

    boundsInParent.set(left, top, right, bottom);
    info.setBoundsInParent(boundsInParent);

    info.setVisibleToUser(getVisibility() == View.VISIBLE);

    Rect boundsInScreen = boundsInParent;
    int[] locationOnScreen = mTempArray;
    getLocationOnScreen(locationOnScreen);
    boundsInScreen.offset(locationOnScreen[0], locationOnScreen[1]);
    info.setBoundsInScreen(boundsInScreen);

    if (mAccessibilityFocusedView != View.NO_ID) {
        info.addAction(AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS);
    }
    if (mAccessibilityFocusedView == View.NO_ID) {
        info.addAction(AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS);
    }
    if (NumberPicker.this.isEnabled()) {
        if (getWrapSelectorWheel() || getValue() < getMaxValue()) {
            info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_FORWARD);
        }
        if (getWrapSelectorWheel() || getValue() > getMinValue()) {
            info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD);
        }
    }

    return info;
}

源代码19 项目： guideshow 文件： AccessibilityNodeInfoCompatJellyBean.java

public static Object obtain(View root, int virtualDescendantId) {
    return AccessibilityNodeInfo.obtain(root, virtualDescendantId);
}

源代码20 项目： GifAssistant 文件： TextPicker.java

private AccessibilityNodeInfo createAccessibilityNodeInfoForNumberPicker(int left, int top,
                                                                         int right, int bottom) {
    AccessibilityNodeInfo info = AccessibilityNodeInfo.obtain();
    info.setClassName(TextPicker.class.getName());
    info.setPackageName(getContext().getPackageName());
    info.setSource(TextPicker.this);

    if (hasVirtualDecrementButton()) {
        info.addChild(TextPicker.this, VIRTUAL_VIEW_ID_DECREMENT);
    }
    info.addChild(TextPicker.this, VIRTUAL_VIEW_ID_INPUT);
    if (hasVirtualIncrementButton()) {
        info.addChild(TextPicker.this, VIRTUAL_VIEW_ID_INCREMENT);
    }

    info.setParent((View) getParentForAccessibility());
    info.setEnabled(TextPicker.this.isEnabled());
    info.setScrollable(true);

    /** TODO: Figure out compat implementation for this
     final float applicationScale =
     getContext().getResources().getCompatibilityInfo().applicationScale;

     Rect boundsInParent = mTempRect;
     boundsInParent.set(left, top, right, bottom);
     boundsInParent.scale(applicationScale);
     info.setBoundsInParent(boundsInParent);

     info.setVisibleToUser(isVisibleToUser());

     Rect boundsInScreen = boundsInParent;
     int[] locationOnScreen = mTempArray;
     getLocationOnScreen(locationOnScreen);
     boundsInScreen.offset(locationOnScreen[0], locationOnScreen[1]);
     boundsInScreen.scale(applicationScale);
     info.setBoundsInScreen(boundsInScreen);
     */

    if (mAccessibilityFocusedView != View.NO_ID) {
        info.addAction(AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS);
    }
    if (mAccessibilityFocusedView == View.NO_ID) {
        info.addAction(AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS);
    }
    if (TextPicker.this.isEnabled()) {
        if (getWrapSelectorWheel() || getValue() < getMaxValue()) {
            info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_FORWARD);
        }
        if (getWrapSelectorWheel() || getValue() > getMinValue()) {
            info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD);
        }
    }

    return info;
}

方法所在类

android.view.accessibility.AccessibilityNodeInfo