在开发时,手机先要ROOT,然后在通过代码改变权限。
<span style="color:#330033;">public synchronized static boolean getRoot(String paramString) { Process process = null; DataOutputStream os = null; try { process = Runtime.getRuntime().exec("su"); os = new DataOutputStream(process.getOutputStream()); os.writeBytes(paramString + "\n"); os.writeBytes("exit\n"); os.flush(); process.waitFor(); } catch (Exception localException) { System.out.println("@@@@root cmd error:"+localException); //localException.printStackTrace(); return false; }finally { try { if (os != null) { os.close(); } process.destroy(); } catch (Exception e) { System.out.println("###root cmd error:"+e); } } return true; }</span>引用时需要注意加入权限:
getRoot("chmod -R 777 /data/data/com.xxxxx/databases/wa.db");