android版本怎么升級(Android版本如何更新)

Android版本更新實例詳解

1、導入xutils的jar包

2、在AndroidManifest.xml中添加權限

3、選擇下載的路徑,和下載apk文件的網址

privateStringurl=”http://www.oschina.NET/uploads/osc-Android-v2.6.4-release.apk”;privateStringsdPath=“/sdcard/”+System.currentTimeMillis()+“yuyin.apk”;

4、當點擊按鈕的時候進行下載

HttpUtilshttpUtils=newHttpUtils();//參數一:下載的路徑參數二:下載到sdpath的路徑參數三:httpUtils.download(url,sdPath,true,newRequestCallBack(){@OverridepublicvoidonSuccess(ResponseInfo<File>arg0){mBtn.setText("下載完成");//路徑Stringpath=arg0.result.getPath();Filefile=newFile(path);Intentintent=newIntent(Intent.ACTION_VIEW);intent.setDataAndType(Uri.fromFile(file),"application/vnd.android.package-archive");startActivity(intent);}@OverridepublicvoidonFailure(HttpExceptionarg0,Stringarg1){mBtn.setText("下載失敗");}@OverridepublicvoidonLoading(longtotal,longcurrent,booleanisUploading){//TODOAuto-generatedmethodstubsuper.onLoading(total,current,isUploading);mBtn.setText("正在下載.....");}@OverridepublicvoidonStart(){super.onStart();mBtn.setText("開始下載");}});