我正在向服务器发布一些json数据，但是我想检查所发送数据的进度，所以我添加了一个进度条来指示我发送的数据百分比，但进度条保持在0％，所以我放了一个日志语句，我可以看到进度条递增5。
这是我试过的代码。
Asynctask类
private class SyncPodData extends AsyncTask<Integer,Integer,Void>{
@Override
protected void onPreExecute() {
super.onPreExecute();
mProgressDialog = new ProgressDialog(Add_Pod.this);
mProgressDialog.setMessage("POD details syncing.. please wait !!!");
mProgressDialog.setIndeterminate(false);
mProgressDialog.setMax(100);
mProgressDialog.setProgress(0);
mProgressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
mProgressDialog.setCancelable(true);
mProgressDialog.setCanceledOnTouchOutside(false);
mProgressDialog.setOnDismissListener(new
DialogInterface.OnDismissListener() {
@Override
public void onDismiss(DialogInterface dialog) {
dialog.dismiss();
mProgressDialog.cancel();
new SyncPodData().cancel(true);
}
});
mProgressDialog.show();
}
@Override
protected Void doInBackground(Integer... params) {
int count = 0;
try {
TelephonyManager telephonyManager = (TelephonyManager)
getSystemService(Context.TELEPHONY_SERVICE);
String IMEI_No = telephonyManager.getDeviceId();
if (IMEI_No == null) {
Toast.makeText(getApplicationContext(),
"Problem IMEI", Toast.LENGTH_LONG).show();
} else {
if (isInternetPresent) {
cursor = quickSnapHelper.getPodSyncDetails(oldSYnc);
if (cursor.getCount() == 0) {
}
else{
try{
HTTPCalls httpCalls = new HTTPCalls();
JSONObject jsonObj = httpCalls.jo(url,
imeiNumber, verificationCode, appName);
String token = jsonObj.getString("Token");
String tUrl = jsonObj.getString("Url");
tUrl = tUrl.toString().concat("postImage");
JSONArray jArray1 = new JSONArray();
while (cursor.moveToNext()) {
JSONObject json = new JSONObject();
json.put("CategoryName","POD");
json.put("SubCategory", passedType);
json.put("Image1", image1);
json.put("Image2", image2);
json.put("Image3", image3);
json.put("Image4", image4);
json.put("DODC", doe);
jArray1.put(json);
}
int jsonarrayLength = jArray1.length();
HttpParams httpParams = new BasicHttpParams();
HttpClient client = new
DefaultHttpClient(httpParams);
HttpPost request = new HttpPost(tUrl);
request.setHeader("Authorization", basicAuth);
request.setHeader(HTTP.CONTENT_TYPE,
"application/json");
HttpResponse response = client.execute(request);
Log.d("Http Response: ", response.toString());
statusLine = response.getStatusLine();
code = statusLine.getStatusCode();
HttpEntity entity = response.getEntity();
if (entity != null) {
InputStream instream = entity.getContent();
// publish progress //
while(count != 100){
publishProgress(count);
count += 5;
}
BufferedReader reader = new
BufferedReader(new InputStreamReader(instream));
String line1;
StringBuilder sb = new StringBuilder();
while ((line1 = reader.readLine()) != null)
{
sb.append(line1);
}
String result = sb.toString();
result = result.trim();
instream.close();
Log.d("Result:", result);
String responseCode = String.valueOf(code);
Log.d("Code:", responseCode);
JSONArray jsonArray = new JSONArray(result);
for(int i = 0; i < jsonArray.length(); i++){
JSONObject jsonObject =
jsonArray.getJSONObject(i);
resultTransId =
jsonObject.getString("TransactionId");
}
Log.d("Transaction Id", resultTransId);
if (code >= 400) {
Add_Pod.this.runOnUiThread(new
Runnable() {
@Override
public void run() {
Toast.makeText(getBaseContext(),
"Data sync failed!!!"+"\n"+
Toast.LENGTH_LONG).show();
}
});
}
else if (code == 200 &&
transId.equals(resultTransId)) {
updaterow();
Add_Pod.this.runOnUiThread(new
Runnable() {
@Override
public void run() {
Toast.makeText(getBaseContext(),
"Data sync completed",
Toast.LENGTH_SHORT).show();
}
});
}
}
}
catch (UnknownHostException ex){
ex.printStackTrace();
Add_Pod.this.runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText(getBaseContext(), "Please
check your internet connection!!!", Toast.LENGTH_LONG).show();
}
});
}
catch (Exception e){
e.printStackTrace();
Add_Pod.this.runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText(getBaseContext(), "Data
sync failed!!!"+"\n"+
Toast.LENGTH_LONG).show();
}
});
}
}
} else {
showAlertDialog(Add_Pod.this, "No Internet Connection",
"You don't have internet connection.",
false);
}
}
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
@Override
protected void onProgressUpdate(Integer... values) {
super.onProgressUpdate(values);
Log.d("Progress Value", "" + values[0]);
mProgressDialog.setProgress(values[0]);
}
@Override
protected void onPostExecute(Void aVoid) {
super.onPostExecute(aVoid);
if(mProgressDialog.isShowing()){
mProgressDialog.dismiss();
}
}
}
请提出一些建议。
LogCat：
D /进度值：5 D /进度值：10 D /进度值：15 D /进度值：20 D /进度值：25 D /进度值：30 D /进度值：35 D /进度值：40 D /进度值：45 D /进度值：50 D /进度值：55 D /进度值：60 D /进度值：65 D /进度值：70 D /进度值：75 D /进度值：80 D /进度值：85 D /进度值：90 D /进度值：95
答案 0 :(得分：0)
在你的AsyncClass中声明两个int变量，名为length和calculatedVal.After声明HttpEntity变量，在if块中你提供的entity！= null条件， 将长度初始化为：
length = entity.getContentLength();
在onProgressUpdate（）内部，初始化calculatedVal并将进度值设置为：
calculatedVal = (int) (((double) values[0] / length) * 100);
mProgressDialog.setProgress(calculatedVal);
您需要在进度条中显示已下载了多少文件以及剩余多少文件。为此，您需要考虑最高规定的计算值。希望它会帮助您