【移动应用开发技术】android 应用更新升级模块 升级会卡 引发CF

【移动应用开发技术】android应用更新升级模块升级会卡引发CF

今天在做应用升级的模块的时候，给大家分享一下升级的相关代码模块，在升级的过程前期的下载，和现在弹出的相关窗体这些的没有什么难度的，就是有个重要的地方，在每次要刷新下载进度更新的时候，要给个有条件更新，如果每次够让他跟新的，会导致应用边卡，引发CF等问题，下面是相关的代码分享，若其他问题可以私聊我！！！

本应用用到了两个开源库：

需要的人找我私聊publicclassMainActivityextendsActivity{

privateintmCurVersion;

privateObjUpDataupdata;

privatestaticNotificationManagermNm;

privatestaticRemoteViewsmrRemoteViews;

privatestaticNotificationnotification;

privatestaticinttmp;

@Override

protectedvoidonCreate(BundlesavedInstanceState){

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

mNm=(NotificationManager)getSystemService(Context.NOTIFICATION_SERVICE);//

点击下载

findViewById(R.id.button1).setOnClickListener(newOnClickListener(){

@Override

publicvoidonClick(Viewv){

updatautil();

}

});

//若点击下载后，在点别的会倒是CF

findViewById(R.id.button2).setOnClickListener(newOnClickListener(){

@Override

publicvoidonClick(Viewv){

//TODOAuto-generatedmethodstub

Toast.makeText(MainActivity.this,"卡了！！我就呵呵了",Toast.LENGTH_SHORT).show();

}

});

}

publicintgetCurrentVersion(){

PackageInfoinfo=null;

try{

PackageManagerpm=getPackageManager();

info=pm.getPackageInfo(getPackageName(),0);

}catch(NameNotFoundExceptione){

//TODOAuto-generatedcatchblock

e.printStackTrace();

}

Log.e("getCurrentVersion","info.versionCode="+info.versionCode);

returninfo.versionCode;

}

privatevoidupdatautil(){

//小模块：实现版本升级

//打开应用

//>有新版本，弹出dialog（更新了xx功能，修复了xxbug，提升自动定位的准确性...）；

//如果点击取消就不更新，

//点击确定才开始下载最新安装包

//>下载完成，下拉点击，跳转到安装界面

//有新版本，弹出dialog

//获取当前版本

mCurVersion=getCurrentVersion();

//获取新版本，下载文件，解析得到文件中所有数据

HttpUtil.post("03:8080/tins//equRgController/doDownloadNewVersion.do",//下载路径

newRequestParams(),newAsyncHttpResponseHandler(){

@Override

publicvoidonSuccess(intstatusCode,Header[]headers,Stringcontent){

Log.e("HttpUtil.post","statusCode="+statusCode+"headers="+headers+"content="+content);

UpDatadata=newGson().fromJson(content,UpData.class);

updata=data.getObj();

//得到新版本号

intnewVersion=updata.getVersion();

//将新版本号跟就版本进行比较

if(newVersion>mCurVersion){

//弹出dialog提示是否需要更新并显示更新简介

showMyDialog();

}

}

@Override

publicvoidonFailure(intstatusCode,Header[]headers,Throwableerror,Stringcontent){

}

});

}

privatevoidshowMyDialog(){

finalDialogmDialog=newDialog(this);

mDialog.setTitle("发现新版本");

Viewview=getLayoutInflater().inflate(R.layout.dialog_item,null);

TextViewtextView=(TextView)view.findViewById(R.id.textView1);

textView.setText(updata.getDesc());

view.findViewById(R.id.button2).setOnClickListener(newOnClickListener(){

@Override

publicvoidonClick(Viewv){

mDialog.dismiss();

newMyAsyn(mNm).execute(updata.getLoadUrl());

ShowPedding();

}

});

view.findViewById(R.id.button1).setOnClickListener(newOnClickListener(){

@Override

publicvoidonClick(Viewv){

mDialog.dismiss();

}

});

mDialog.setContentView(view);

mDialog.show();

}

//启动异步下载

staticclassMyAsynextendsAsyncTask<String,Integer,Integer>{

privateNotificationManagermNm;

publicMyAsyn(NotificationManagermNm){

this.mNm=mNm;

}

@Override

protectedIntegerdoInBackground(String...params){

intlength=0;

FileOutputStreamfos=null;

try{

URLurl=newURL(params[0]);

URLConnectionopenConnection=url.openConnection();

InputStreamis=openConnection.getInputStream();

length=openConnection.getContentLength();

byte[]buffer=newbyte[1024];

intend=0;

intsum=0;

Log.e("doInBackground","Environment.getExternalStorageDirectory().getPath()="

+Environment.getExternalStorageDirectory().getPath());

fos=newFileOutputStream(Environment.getExternalStorageDirectory().getPath()+"/TTins.apk");

//fos=newFileOutputStream("/mnt/sdcard/TTins.apk");

while(-1!=(end=is.read(buffer))){

fos.write(buffer,0,end);

intresent=sum*100/length;

sum+=end;

if(resent%6==0&&tmp!=resent){

tmp=resent;

publishProgress(length,sum,resent);

}

}

}catch(IOExceptione){

e.printStackTrace();

}finally{

if(fos!=null){

try{

fos.close();

}catch(IOExceptione){

e.printStackTrace();

}

}

}

returnlength;

}

@Override

protectedvoidonProgressUpdate(Integer...values){

mrRemoteViews.setProgressBar(R.gressBar1,values[0],values[1],false);

mrRemoteViews.setTextViewText(R.id.textView1,"已下载"+values[2]+"%");

mNm.notify(1,notification);

super.onProgressUpdate(values);

}

@Override

protectedvoidonPostExecute(Integerresult){

mrRemoteViews.setProgressBar(R.gressBar1,result,result,false);

mrRemoteViews.setTextViewText(R.id.textView1,"下载完成");

mNm.notify(1,notification);

super.onPostExecute(result);

}

}

privatevoidShowPedding(){

//privatestaticvoidShowPedding(Activityactivity,

//NotificationManagermNm){

StringfileName=Environment.getExternalStorageDirectory().getAbsolutePath()+"/TTins.apk";

//创建URI

Uriuri=Uri.fromFile(newFile(fileName));

Intentintent=newIntent(Intent.ACTION_VIEW);

intent.setDataAndType(uri,"application/vnd.android.package-archive");

PendingIntentpendingIntent=PendingIntent.getActivity(this,0,intent,0);

mrRemoteViews=newRemoteViews(getPackageName(),R.layout.remote_item);

notification=newNotificationCompat.Builder(this).setTicker("开始下载").setSmallIcon(R.drawable.ic_launcher)

.setContentIntent(pendingIntent).setContent(mrRemoteViews).build();

mNm.notify(1,(Notification)notification);

}

}弹出dialog的XML文件<RelativeLayoutxmlns:android="/apk/res/android"

android:layout_width="match_parent"

android:layout_height="match_parent">

<RelativeLayout

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:layout_alignParentLeft="true"

android:background="#ffffff"

android:layout_alignParentTop="true">

<ImageView

android:id="@+id/p_w_picpathView1"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_alignParentTop="true"

android:layout_centerHorizontal="true"

android:src="@drawable/ic_launcher"/>

<TextView

android:id="@+id/textView1"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_below="@+id/p_w_picpathView1"

android:layout_centerHorizontal="true"

android:layout_marginTop="22dp"

android:text="LargeText"

android:textAppearance="?android:attr/textAppearanceLarge"/>

<Button

android:id="@+id/button1"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_below="@+id/textView1"

android:layout_marginTop="23dp"

android:layout_toLeftOf="@+id/p_w_picpathView1"

android:text="取消"/>

<Button

android:id="@+id/button2"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_alignBaseline="@+id/button1"

android:layout_alignBottom="@+id/button1"

android:layout_toRightOf="@+id/p_w_picpathView1"

android:text="确定"/>

</RelativeLayout></RelativeLayout>下面分享一下要用的两个XML文件<RelativeLayoutxmlns:android="/apk/res/android"

android:layout_width="match_parent"

android:layout_height="match_parent">

<ProgressBar

android:id="@+id/progressBar1"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_below="@+id/textView1"

android:layout_toLeftOf="@+id/button1"

android:layout_toRightOf="@+id/p_w_picpathView1"/>