[英]how to get text from all the child nodes in AccessibilityNodeInfo
我正在嘗試從AccessiblityNodeInfo的所有子節點讀取文本。
我嘗試獲取AccessiblityNodeInfo.getParent()
和AccessibilityNodeInfo.getChildCount()
for(int i=0; i<accessibilityNodeInfo.getChildCount();i++){
accessibilityNodeInfo.getChild(i).getText();
}
如上所述訪問子節點以從子節點獲取文本。 但它沒有提供屏幕上的所有文本。
誰能建議我該怎么做?
private List<CharSequence> getAllChildNodeText(AccessibilityNodeInfoCompat infoCompat) {
List<CharSequence> contents = new ArrayList<>();
if (infoCompat == null)
return contents;
if (infoCompat.getContentDescription() != null) {
contents.add(infoCompat.getContentDescription().toString().isEmpty() ? "unlabelled" : infoCompat.getContentDescription());
} else if (infoCompat.getText() != null) {
contents.add(infoCompat.getText().toString().isEmpty() ? "unlabelled" : infoCompat.getText());
} else {
getTextInChildren(infoCompat, contents);
}
if (infoCompat.isClickable()) {
if (infoCompat.getClassName().toString().contains(Button.class.getSimpleName())) {
if (contents.size() == 0) {
contents.add("Unlabelled button");
} else {
contents.add("button");
}
}
contents.add("Double tap to activate");
}
return contents;
}
private void getTextInChildren(AccessibilityNodeInfoCompat nodeInfoCompat, List<CharSequence> contents) {
if (nodeInfoCompat == null)
return;
if (!nodeInfoCompat.isScrollable()) {
if (nodeInfoCompat.getContentDescription() != null) {
contents.add(nodeInfoCompat.getContentDescription());
} else if (nodeInfoCompat.getText() != null) {
contents.add(nodeInfoCompat.getText());
}
if (nodeInfoCompat.getChildCount() > 0) {
for (int i = 0; i < nodeInfoCompat.getChildCount(); i++) {
if (nodeInfoCompat.getChild(i) != null) {
getTextInChildren(nodeInfoCompat.getChild(i), contents);
}
}
}
}
}
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