現在ログイン時にスピナー ダイアログを表示する AsyncTask がありますが、ユーザーの観点からはうまく機能しませんintent。信号が悪いとき、または文の途中で3Gからwifiにジャンプしたとき、それはゴミとして機能します
それで。私が欲しいのは、サブミットをクリックするとプログレスバーダイアログを表示し、完了したら2番目にジャンプすることで機能するログインページですintent
これが私がこれまでに持っているものです
package com.pprem.include;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URI;
import java.util.ArrayList;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.conn.params.ConnManagerParams;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.params.HttpConnectionParams;
import org.apache.http.params.HttpParams;
public class Include_CustomHttpClient {
/** The time it takes for our client to timeout */
public static final int HTTP_TIMEOUT = 30 * 1000; // milliseconds
/** Single instance of our HttpClient */
private static HttpClient mHttpClient;
/**
* Get our single instance of our HttpClient object.
*
* @return an HttpClient object with connection parameters set
*/
private static HttpClient getHttpClient() {
if (mHttpClient == null) {
mHttpClient = new DefaultHttpClient();
final HttpParams params = mHttpClient.getParams();
HttpConnectionParams.setConnectionTimeout(params, HTTP_TIMEOUT);
HttpConnectionParams.setSoTimeout(params, HTTP_TIMEOUT);
ConnManagerParams.setTimeout(params, HTTP_TIMEOUT);
}
return mHttpClient;
}
/**
* Performs an HTTP Post request to the specified url with the
* specified parameters.
*
* @param url The web address to post the request to
* @param postParameters The parameters to send via the request
* @return The result of the request
* @throws Exception
*/
public static String executeHttpPost(String url, ArrayList<NameValuePair> postParameters) throws Exception {
BufferedReader in = null;
try {
HttpClient client = getHttpClient();
HttpPost request = new HttpPost(url);
UrlEncodedFormEntity formEntity = new UrlEncodedFormEntity(postParameters);
request.setEntity(formEntity);
HttpResponse response = client.execute(request);
in = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));
StringBuffer sb = new StringBuffer("");
String line = "";
String NL = System.getProperty("line.separator");
while ((line = in.readLine()) != null) {
sb.append(line + NL);
}
in.close();
String result = sb.toString();
return result;
}
finally {
if (in != null) {
try {
in.close();
}
catch (IOException e) {
e.printStackTrace();
}
}
}
}
public static String executeHttpGet(String url) throws Exception {
BufferedReader in = null;
try {
HttpClient client = getHttpClient();
HttpGet request = new HttpGet();
request.setURI(new URI(url));
HttpResponse response = client.execute(request);
in = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));
StringBuffer sb = new StringBuffer("");
String line = "";
String NL = System.getProperty("line.separator");
while ((line = in.readLine()) != null) {
sb.append(line + NL);
}
in.close();
String result = sb.toString();
return result;
} finally {
if (in != null) {
try {
in.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
}
次に、実際のアクティビティで this によって呼び出されます
status="passed";
final class GetUserHttpTask
extends
AsyncTask<String/* Param */, Boolean /* Progress */, String /* Result */> {
@Override
protected String doInBackground(String... params) {
publishProgress(true);
try {
getUserPhpResponse = Include_CustomHttpClient.executeHttpPost(settings.getServer() + "getUser.php", postParameters);
return getUserPhpResponse;
} catch (Exception e) {
e.printStackTrace();
return "";
}
}
@Override
protected void onPostExecute(String getUserPhpResponse) {
publishProgress(false);
//result = result.replaceAll("\\s+","");
settings.setFullname(getUserPhpResponse);
JSONObject jObject;
try {
jObject = new JSONObject(getUserPhpResponse);
settings.setFullname(jObject.getString("fullname"));
settings.setAdministrator(jObject.getString("administrator"));
if (status=="passed"){
//start the second Activity
gotofrmListSchema.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
gotofrmListSchema.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(gotofrmListSchema);
}
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
new GetUserHttpTask().execute();