在android中的webview中查找特定文本的数量

问题描述

我需要在 webview 中找到特定的文本，但我无法做到.findall 在 api 级别 16 之后被弃用，我们需要使用 findAllAsync.我们也可以使用 WebView.FindListener.早些时候我使用 findall 并且它工作正常，但它不适用于 kitkat 和棒棒糖.我尝试过 findAllAsync 但我无法找到任何特定文本的计数.我的代码在这里:

I need to find particular text in webview but i can not able to do it.findall is deprecated after api level 16 and we need to use findAllAsync.we can also use WebView.FindListener.Earlier i was used findall and it work fine but it not work in kitkat and lollipop. I have tried with findAllAsync but i can not able to find count of any particular text.my code is here :

@Override
public void onFindResultReceived(int activeMatchOrdinal,
        int numberOfMatches, boolean isDoneCounting) {
    if (isDoneCounting) {
        updateMatchCount(activeMatchOrdinal, numberOfMatches,
                numberOfMatches == 0);

    }
    Log.e("test", "data ::" + numberOfMatches);

}

public void findAll() {
    if (webviewdevelopment == null) {
        throw new AssertionError(
                "No WebView for FindActionModeCallback::findAll");
    }
    CharSequence find = "Following";
    if (0 == find.length()) {
        webviewdevelopment.clearMatches();
        mMatchesFound = false;
        webviewdevelopment.findAll(null);
    } else {
        mMatchesFound = true;
        mNumberOfMatches = 0;
        webviewdevelopment.findAllAsync(find.toString());

    }

    Log.e("test", "data ::" + mNumberOfMatches);

}

public void updateMatchCount(int matchIndex, int matchCount,
        boolean isEmptyFind) {
    if (!isEmptyFind) {
        mNumberOfMatches = matchCount;
        mActiveMatchIndex = matchIndex;
        updateMatchesString();
    } else {

        mNumberOfMatches = 0;
    }
}

private void updateMatchesString() {
    if (mNumberOfMatches == 0) {

    } else {

        Log.e("test", "data ::" + mNumberOfMatches + ","
                + mActiveMatchIndex + 1 + "," + mNumberOfMatches);

    }

}

private void findNext(boolean next) {
    if (webviewdevelopment == null) {
        throw new AssertionError(
                "No WebView for FindActionModeCallback::findNext");
    }
    if (!mMatchesFound) {
        findAll();
        return;
    }
    if (0 == mNumberOfMatches) {
        // There are no matches, so moving to the next match will not do
        // anything.
        return;
    }
    webviewdevelopment.findNext(next);
    updateMatchesString();
}

@Override
public void onFindResultReceived(int activeMatchOrdinal,
        int numberOfMatches, boolean isDoneCounting) {
    if (isDoneCounting) {
        updateMatchCount(activeMatchOrdinal, numberOfMatches,
                numberOfMatches == 0);

    }
    Log.e("test", "data ::" + numberOfMatches);

}

谁有demo请提供给我，谢谢

anybody have any demo please provide me, thanks

推荐答案

在您的代码中使用它来搜索所需的字符串.

Use this in your code to search for the string required.

webview.findAllAsync("Your String");

将 FindListener 添加到 WebView

than add FindListener to WebView

webview.setFindListener(new FindListener() {

    @Override
    public void onFindResultReceived(int activeMatchOrdinal, int numberOfMatches, boolean isDoneCounting) {
        Toast.makeText(getApplicationContext(), "Matches: " + numberOfMatches, Toast.LENGTH_LONG).show();
    }
});

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