Android开发之奇怪需求

2020-11-11  本文已影响0人  T92

最近的奇怪的需求越来越多了,简单举几个例子(只是其中最具代表性的几条):在设备未root的前提下实现后台全局截屏、重启设备、恢复出厂设置、更改设备密码、禁用状态栏下拉、静默安装卸载APP、隐藏第三方APP......WTF!!!

为了糊口,只能撸起袖子干!最终通过各种方式,除隐藏第三方APP外其他都实现了,这里记录几个,能写多少是多少吧(未root!)

重启设备

重启设备Google是提供了api的,但是需要APP为设备拥有者(DeviceOwner)才能调用,否则报错,而成为DeviceOwner需要借助PC写adb命令或者另一台手机实现,遂弃之,啥?adb!,那为啥不能用adb试试reboot命令!
首先写个执行命令的方法(搬砖):

public CommandResult execCommand(String[] commands, boolean isRoot) {
        CommandResult commandResult = new CommandResult();
        if (commands == null || commands.length == 0) return commandResult;
        Process process = null;
        DataOutputStream os = null;
        BufferedReader successResult = null;
        BufferedReader errorResult = null;
        StringBuilder successMsg = null;
        StringBuilder errorMsg = null;
        try {
            process = Runtime.getRuntime().exec(isRoot ? "su" : "sh");
            os = new DataOutputStream(process.getOutputStream());
            for (String command : commands) {
                if (command != null) {
                    os.write(command.getBytes());
                    os.writeBytes("\n");
                    os.flush();
                }
            }
            os.writeBytes("exit\n");
            os.flush();
            commandResult.result = process.waitFor();
            //获取错误信息
            successMsg = new StringBuilder();
            errorMsg = new StringBuilder();
            successResult = new BufferedReader(new InputStreamReader(process.getInputStream()));
            errorResult = new BufferedReader(new InputStreamReader(process.getErrorStream()));
            String s;
            while ((s = successResult.readLine()) != null) successMsg.append(s);
            while ((s = errorResult.readLine()) != null) errorMsg.append(s);
            commandResult.successMsg = successMsg.toString();
            commandResult.errorMsg = errorMsg.toString();
            Log.i("CommandExecution", commandResult.result + " | " + commandResult.successMsg
                    + " | " + commandResult.errorMsg);

        } catch (IOException e) {
            String errmsg = e.getMessage();
            if (errmsg != null) {
                Log.e("CommandExecution", errmsg);
                Map<String, String> map = new HashMap<>();
                map.put("location","执行异常:" + errmsg);
                invoke("location",map);
            } else {
                e.printStackTrace();
            }
        } catch (Exception e) {
            String errmsg = e.getMessage();
            if (errmsg != null) {
                Log.e("CommandExecution", errmsg);
                Map<String, String> map = new HashMap<>();
                map.put("location","执行异常:" + errmsg);
                invoke("location",map);
            } else {
                e.printStackTrace();
            }
        } finally {
            try {
                if (os != null) os.close();
                if (successResult != null) successResult.close();
                if (errorResult != null) errorResult.close();
            } catch (IOException e) {
                String errmsg = e.getMessage();
                if (errmsg != null) {
                    Log.e("CommandExecution", errmsg);
                } else {
                    e.printStackTrace();
                }
            }
            if (process != null) process.destroy();
        }
        return commandResult;
    }

    private class CommandResult {
        public int result = -1;
        public String errorMsg;
        public String successMsg;
    }

然后执行(kotlin)
未root的手机可以实现部分adb命令,这里试了reboot不需要root权限,如果不行就写arrayOf("su" "-c" "reboot")三个命令依次执行

val cmds = arrayOf("reboot")
execCommand(cmds,false)//未root传false





以下代码就不放了,仅提供方向和思路

更改设备密码

研究一下DevicePolicyManager,再补充补充DeviceAdminProfileOwnerDeviceOwner知识,很多系统控制就可以实现了

禁用状态栏下拉

用浮窗WindowManagerLayoutParams的type设置为TYPE_SYSTEM_ERROR将浮窗置为最顶层阻止状态栏响应,间接实现禁用状态栏

静默安装卸载APP

这个除了root或者拿到系统源码or签名,否则我认为要实现真正静默是无解的,最终,通过Android系统的无障碍方式实现伪静默安装卸载

全局截屏

实现了,但不完美,虽然截屏成功,但会导致桌面停止运行,然后重新加载桌面,不值一提

隐藏第三方APP

求一个答案,在线等!挺急的

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