disable_screenshots 0.1.0

Flutter Android iOS

Provides three related functions that disable screenshots. These are: screenshot monitoring, adding a watermark globally, disabling screenshots (only supports Android). 提供三个禁用截屏的相关功能。分别是:截屏监控、全局添加水印、禁

disable_screenshots #

在Flutter开发中,有时我们需要对App的内容进行管控,避免敏感信息暴露,所以开发了这个插件。此插件提供三个禁用截屏的相关功能,分别是:截屏监控行为全局添加水印禁用截屏(仅支持Android)

Getting Started #

Add dependency #

dependencies:
  disable_screenshots: 0.0.1 #latest version

功能演示 #

demo_gif

使用样例 #

class RootApp extends StatefulWidget {
  @override
  _RootAppState createState() => _RootAppState();
}

class _RootAppState extends State<RootApp> {
  // 初始化插件
  DisableScreenshots _plugin = DisableScreenshots();
  // 监控截屏行为的stream
  StreamSubscription<void> _screenshotsSubscription;
  int _screenshotsCount = 0;
  bool _disableScreenshots = false;

  @override
  void initState() {
    super.initState();
    _screenshotsSubscription = _plugin.onScreenShots.listen((event) {
      // 监控到截屏行为会回调到这里
      setState(() {
        _screenshotsCount++;
      });
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('禁止截屏'),
      ),
      body: Column(
        children: <Widget>[
          Center(
            child: Text("监控到截屏次数:$_screenshotsCount"),
          ),
          Center(
            child: Text(_disableScreenshots ? "禁止截屏状态" : "允许截屏状态"),
          ),
          RaisedButton(
              onPressed: () {
                // 添加默认样式的水印
                _plugin.addWatermark(context, "默认水印",
                    rowCount: 4, columnCount: 8);
              },
              child: Text("添加默认水印")),
          RaisedButton(
              onPressed: () {
                // 添加自定义widget当做水印
                _plugin.addCustomWatermark(context,
                    Watarmark(rowCount: 3, columnCount: 10, text: "自定义水印"));
              },
              child: Text("添加自定义水印")),
          RaisedButton(
              onPressed: () {
                // 移除水印
                _plugin.removeWatermark();
              },
              child: Text("删除水印")),
          RaisedButton(
              onPressed: () async {
                bool flag = !_disableScreenshots;
                // 禁用或允许截屏(只支持iOS)
                await _plugin.disableScreenshots(flag);
                setState(() {
                  _disableScreenshots = flag;
                });
              },
              child: Text(_disableScreenshots ? "允许截屏(仅android适用)" : "禁用截屏(仅android适用)")),
          RaisedButton(
              onPressed: () {
                Navigator.of(context).push(MaterialPageRoute(
                    builder: (_) => Scaffold(
                          appBar: AppBar(
                            title: Text("我是新页面"),
                          ),
                          body: Center(child: Text("new page")),
                        )));
              },
              child: Text("进入新页面"))
        ],
      ),
    );
  }

  @override
  void dispose() {
    super.dispose();
    //取消截屏监控可以调用cancel()方法
    if (_screenshotsSubscription != null) {
      _screenshotsSubscription.cancel();
    }
  }
}

已知问题 #

  1. 在老的flutter项目中,在iOS平台运行可能出现编译问题无法运行。这个是由于老的flutter项目里面没有使用到swift,所以没有briging文件,但是插件使用了swift,所以会编译失败,这种情况直接使用xcode在iOS项目中创建一个swift文件,会自动生成briding文件。

其它 #

此Plugin的创建流程,可以参考博文如何创建一个Flutter Plugin

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Provides three related functions that disable screenshots. These are: screenshot monitoring, adding a watermark globally, disabling screenshots (only supports Android). 提供三个禁用截屏的相关功能。分别是:截屏监控、全局添加水印、禁用截屏(仅支持Android)

Repository (GitHub)
View/report issues

Documentation

API reference

Uploader

devnovalee@gmail.com

License

MIT (LICENSE)

Dependencies

flutter

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