Show/Hide System UI

SystemUIUtils.kt

val hardwareId
    get() = "getprop ro.hardware".runAsCommand().trim()

fun setSystemUIVisibility(show: Boolean) {
  GlobalScope.launch {
    if (show) {
        if(hardwareId.equals("qcom")) { // ZPAD Plus 4G (7.1.1)
            "am broadcast -a com.android.zkteco.SHOW_NAVIGATION".runAsCommand()
            "am broadcast -a com.android.zkteco.SHOW_STATUS".runAsCommand()
        } else { // ZPAD Plus (6.0.1)
            "am broadcast -a update.statusbar --ei status 1 -f 0x10000000".runAsCommand()
        }
    } else {
        if(hardwareId.equals("qcom")) { // ZPAD Plus 4G (7.1.1)
            "am broadcast -a com.android.zkteco.HIDE_NAVIGATION".runAsCommand()
            "am broadcast -a com.android.zkteco.HIDE_STATUS".runAsCommand()
        } else { // ZPAD Plus (6.0.1)
            "am broadcast -a update.statusbar --ei status 0 -f 0x10000000".runAsCommand()
            "am broadcast -a show.statusbar --ei status 0 -f 0x10000000".runAsCommand()
        }
    }
  }
}

fun String.runAsCommand() = run {
    ShellHelper.execCommandAndRetrieveStringResult(this).joinToString(separator = "\n")
}

@Throws(IOException::class)
fun execCommandAndRetrieveStringResult(command: String): List<String> {
    val result = ArrayList<String>()
    val runTime = Runtime.getRuntime()
    val process = runTime.exec("su")
    val outputStream = DataOutputStream(
        process.outputStream
    )
    try {
        outputStream.writeBytes(
            """
                $command
                
                """.trimIndent()
        )
        outputStream.flush()
        process.outputStream
        outputStream.writeBytes("exit\n")
        outputStream.flush()
        process.waitFor()
        var line: String

        // getInputStream gives an Input stream connected to
        // the process standard output. Just use it to make
        // a BufferedReader to readLine() what the program writes out.
        val inputStream = BufferedReader(InputStreamReader(process.inputStream))
        while (inputStream.readLine().also { line = it } != null && line.isNotEmpty()) {
            result.add(line)
        }
    } catch (e: InterruptedException) {
        Log.e("ExecCommand", "Error executing command", e)
    } finally {
        outputStream.close()
    }
    return result
}