讀取和寫入手機配置文件代碼

以String path = "/sys/misc-config/lte_radio_ant_sw1" 爲例

一、讀取手機配置文件

private String getAerialConfig(String path) {
        FileInputStream is = null;
        String val = null;
        try {
            is = new FileInputStream(path);
            byte[] buffer = new byte[64];
            int count = is.read(buffer);
            if (count > 0) {
                val = new String(buffer, 0, count);
            }
        } catch (IOException e) {
            Log.d(TAG, "IOException: setAerialConfig " + e);
        } finally {
            if (is != null) {
                try {
                    is.close();
                } catch (IOException e) {
                }
            }
        }
        if (val != null) {
            val = val.trim();
        }
        return val;
    }

二、寫入配置文件

private void setAerialConfig(String path, String config) {
        Log.d(TAG, "setAerialConfig: " + config);
        FileOutputStream out = null;
        try {
            out = new FileOutputStream(path);
            byte[] buf = config.getBytes();
            out.write(buf, 0, buf.length);
        } catch (FileNotFoundException e) {
            Log.e(TAG, "FileNotFoundException: setAerialConfig " + e);
        } catch (IOException e) {
            Log.e(TAG, "IOException: setAerialConfig " + e);
        } finally {
            try {
                if (out != null)
                    out.close();
            } catch (IOException e) {
            }
        }
    }