android 应用更新升级模块升级会卡引发CF

发布时间：2020-08-03 04:01:41 来源：网络阅读：451 作者：龙神号贵栏目：移动开发

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

public class MainActivity extends Activity {

private int mCurVersion;
private ObjUpData updata;
private static NotificationManager mNm;
private static RemoteViews mrRemoteViews;
private static Notification notification;
private static int tmp;
@Override
protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);
  mNm = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
//  点击下载
  findViewById(R.id.button1).setOnClickListener(new OnClickListener() {

   @Override
   public void onClick(View v) {
    updatautil();
   }
  });
  //若点击下载后，在点别的会倒是CF
  findViewById(R.id.button2).setOnClickListener(new OnClickListener() {

   @Override
   public void onClick(View v) {
    // TODO Auto-generated method stub
    Toast.makeText(MainActivity.this, "卡了！！我就呵呵了", Toast.LENGTH_SHORT).show();

   }
  });
}
public int getCurrentVersion() {
  PackageInfo info = null;
  try {
   PackageManager pm = getPackageManager();
   info = pm.getPackageInfo(getPackageName(), 0);
  } catch (NameNotFoundException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
  Log.e("getCurrentVersion", "info.versionCode=" + info.versionCode);
  return info.versionCode;
}
private void updatautil() {
  // 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("http://192.168.1.103:8080/tins//equRgController/doDownloadNewVersion.do",//下载路径
    new RequestParams(), new AsyncHttpResponseHandler() {
   @Override

   public void onSuccess(int statusCode, Header[] headers, String content) {
    Log.e("HttpUtil.post", "statusCode=" + statusCode + "headers=" + headers + "content=" + content);
    UpData data = new Gson().fromJson(content, UpData.class);
    updata = data.getObj();
    // 得到新版本号
    int newVersion = 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
   public void onFailure(int statusCode, Header[] headers, Throwable error, String content) {
   }

});
}

private void showMyDialog() {
  final Dialog mDialog = new Dialog(this);
  mDialog.setTitle("发现新版本");
  View view = getLayoutInflater().inflate(R.layout.dialog_item, null);
  TextView textView = (TextView) view.findViewById(R.id.textView1);
  textView.setText(updata.getDesc());
  view.findViewById(R.id.button2).setOnClickListener(new OnClickListener() {
   @Override
   public void onClick(View v) {
    mDialog.dismiss();
    new MyAsyn(mNm).execute(updata.getLoadUrl());
    ShowPedding();
   }

  });
  view.findViewById(R.id.button1).setOnClickListener(new OnClickListener() {
   @Override
   public void onClick(View v) {
    mDialog.dismiss();
   }

  });
  mDialog.setContentView(view);
  mDialog.show();

}

//启动异步下载

static class MyAsyn extends AsyncTask<String, Integer, Integer> {

private NotificationManager mNm;

  public MyAsyn(NotificationManager mNm) {
   this.mNm = mNm;
  }

  @Override
  protected Integer doInBackground(String... params) {
   int length = 0;
   FileOutputStream fos = null;
   try {
    URL url = new URL(params[0]);
    URLConnection openConnection = url.openConnection();
    InputStream is = openConnection.getInputStream();
    length = openConnection.getContentLength();
    byte[] buffer = new byte[1024];
    int end = 0;
    int sum = 0;
    Log.e("doInBackground", "Environment.getExternalStorageDirectory().getPath()="
      + Environment.getExternalStorageDirectory().getPath());
    fos = new FileOutputStream(Environment.getExternalStorageDirectory().getPath() + "/TTins.apk");
    // fos = new FileOutputStream("/mnt/sdcard/TTins.apk");
    while (-1 != (end = is.read(buffer))) {
     fos.write(buffer, 0, end);
     int resent = sum * 100 / length;
     sum += end;
     if (resent % 6 == 0&&tmp!=resent) {
      tmp=resent;
      publishProgress(length, sum, resent);
     }
    }
   } catch (IOException e) {
    e.printStackTrace();
   } finally {
    if (fos != null) {
     try {
      fos.close();
     } catch (IOException e) {
      e.printStackTrace();
     }
    }
   }
   return length;
  }

  @Override
  protected void onProgressUpdate(Integer... values) {
   mrRemoteViews.setProgressBar(R.id.progressBar1, values[0], values[1], false);
   mrRemoteViews.setTextViewText(R.id.textView1, "已下载" + values[2] + "%");
   mNm.notify(1, notification);
   super.onProgressUpdate(values);
  }

  @Override
  protected void onPostExecute(Integer result) {
   mrRemoteViews.setProgressBar(R.id.progressBar1, result, result, false);
   mrRemoteViews.setTextViewText(R.id.textView1, "下载完成");
   mNm.notify(1, notification);
   super.onPostExecute(result);
  }

}

private void ShowPedding() {
  // private static void ShowPedding(Activity activity,
  // NotificationManager mNm) {
  String fileName = Environment.getExternalStorageDirectory().getAbsolutePath() + "/TTins.apk";
  // 创建URI
  Uri uri = Uri.fromFile(new File(fileName));
  Intent intent = new Intent(Intent.ACTION_VIEW);
  intent.setDataAndType(uri, "application/vnd.android.package-archive");
  PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, 0);
  mrRemoteViews = new RemoteViews(getPackageName(), R.layout.remote_item);
  notification = new NotificationCompat.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

</RelativeLayout>

下面分享一下要用的两个XML文件

</RelativeLayout>

向AI问一下细节

android 应用更新升级模块 升级会卡 引发CF

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android 应用更新升级模块升级会卡引发CF