Android / Java – 删除顺序加载动画延迟
我有一个android动画，它加载了一系列顺序点（publishProgress）但是它们开始之前有10秒以上的延迟，因为我将它们作为我的AsyncTask的一部分，它在数据处理时加载（技术上 – 两个应该是相关 – 但它在视觉上会导致延迟）如何在课程首次启动时调用此动画？ 我需要删除这个可视动画延迟。
资源：
public class UpdateActivity extends Activity implements OnClickListener { private TelephonyManager tm; AlertDialog mConfirmAlert = null; NetworkTask task; ImageView image, text; AlertDialog mErrorAlert = null; public static ArrayList NameArr = new ArrayList(); public static ArrayList ValueArr = new ArrayList(); public static ArrayList nameArr = new ArrayList(); public static ArrayList ApnArr = new ArrayList(); public static ArrayList mmscArr = new ArrayList(); public static ArrayList mmsportArr = new ArrayList(); public static ArrayList mmsproxyArr = new ArrayList(); public static ArrayList portArr = new ArrayList(); public static ArrayList proxyArr = new ArrayList(); private ImageView mProgressImageview1; private ImageView mProgressImageview2; private ImageView mProgressImageview3; private ImageView mProgressImageview4; private ImageView mProgressImageview5; private Button mUpdateButton = null; private Button mAssistUpdateButton = null; private Button mAssistInstrButton = null; private TextView mReadAgainButton = null; public static int count; public AnimationDrawable mTextAnimation = null; private Button assist_update_btn = null; TextView mUpdatetext; public static InputStream stream = null; int version; public static BigInteger iD1, iD2, mdN1, mdN2; BigInteger[] id, mdnId; public static String ICCID, MDN; private int mInstructionNumber = 0; public static String caR, result; private static final String LOG_TAG = "DataSettings"; public static final String Base_URL = "https://apps.example.com/REST/phoneSettings"; public static XmlParserHandlerFinal handler; public static int TotalSteps = 8; public FileInputStream fis; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // instance for xml parser class handler = new XmlParserHandlerFinal(); handler.setContext(this.getBaseContext()); tm = (TelephonyManager) getSystemService(TELEPHONY_SERVICE); int networkType = tm.getNetworkType(); int phoneType = tm.getPhoneType(); version = android.os.Build.VERSION.SDK_INT; // to get MDN(MCC+MNC) of the provider of the SIM and ICCID (Serial // number of the SIM) // and to check for the Carrier type getImpVariablesForQuery(); task = new NetworkTask(); if (phoneType == TelephonyManager.PHONE_TYPE_CDMA || (phoneType != TelephonyManager.PHONE_TYPE_GSM && networkType != TelephonyManager.NETWORK_TYPE_GPRS && networkType != TelephonyManager.NETWORK_TYPE_EDGE && networkType != TelephonyManager.NETWORK_TYPE_HSDPA && networkType != TelephonyManager.NETWORK_TYPE_HSPA && networkType != TelephonyManager.NETWORK_TYPE_HSPAP && networkType != TelephonyManager.NETWORK_TYPE_HSUPA && networkType != TelephonyManager.NETWORK_TYPE_UMTS && networkType != TelephonyManager.NETWORK_TYPE_LTE)) { // If the phone type is CDMA or // the phone phone type is not GSM and the network type is none of // the network types indicated in the statement // Display incompatibility message showAlert(getString(R.string.incomp_sm_dialog)); // Network type is looked because some tablets have no phone type. // We rely on network type in such cases } else if (!(tm.getSimState() == TelephonyManager.SIM_STATE_ABSENT || (tm.getSimOperator()) .equals(getString(R.string.numeric_tmo)) || (tm .getSimOperator()).equals(getString(R.string.numeric_att)))) { // if SIM is present and is NOT a T-Mo or ATT network SIM, // display Error message alert indicating to use SM SIM showAlert(getString(R.string.insert_sm_dialog)); }// No SIM or SIM with T-Mo & ATT MNC MCC present else if ((tm.getSimOperator()).equals(getString(R.string.numeric_tmo)) || (tm.getSimOperator()) .equals(getString(R.string.numeric_att))) { // Device has T-Mo or ATT network SIM card MCC and MNC correctly // populated TotalSteps = 6; setContentView(R.layout.updating); // AsyncTask to call the web service task = new NetworkTask(); task.execute(""); } } public void onClick(View v) { if (v == mUpdateButton) { // Update button for versions lower than ICS is selected onClickMethod(v); Intent i = new Intent(this, ConfigFinalActivity.class); startActivity(i); finish(); } else if (v.getId() == R.id.assist_update_btn) { // Update button for ICS and up is selected // Get the TextView in the Assist Update UI TextView tv = (TextView) findViewById(R.id.apn_app_text_cta2); String text = ""; CharSequence styledText = text; switch (mInstructionNumber) { case 0: // Retrieve the instruction string resource corresponding the // 2nd set of instructions text = String.format(getString(R.string.apn_app_text_instr), TotalSteps); styledText = Html.fromHtml(text); // Update the TextView with the correct set of instructions tv.setText(styledText); // Increment instruction number so the correct instructions // string resource can be retrieve the next time the update // button is pressed mInstructionNumber++; break; case 1: text = getString(R.string.apn_app_text_instr2); styledText = Html.fromHtml(text); tv.setText(styledText); // Increment instruction number so the correct instructions // string resource can be retrieve the next time the update // button is pressed mInstructionNumber++; break; case 2: // Final set of instructions-Change to the corresponding layout setContentView(R.layout.assist_instructions); String assistUpdateInstr = String.format( getString(R.string.apn_app_text_instr3), TotalSteps); styledText = Html.fromHtml(assistUpdateInstr); TextView assistInstrText = (TextView) findViewById(R.id.updated_text); assistInstrText.setText(styledText); mAssistInstrButton = (Button) findViewById(R.id.assist_instr_btn); mReadAgainButton = (TextView) findViewById(R.id.read_again_btn); mAssistInstrButton.setOnClickListener(this); mReadAgainButton.setOnClickListener(this); } } else if (v == mAssistInstrButton) { // "LET'S DO THIS" Button in final instructions screen for ICS and // up is selected // Create ConfigActivity Intent Intent i = new Intent(this, ConfigFinalActivity.class); // Invoke ConfigActivity Intent to start the assisted update startActivity(i); startActivity(new Intent(Settings.ACTION_APN_SETTINGS)); } else if (v == mReadAgainButton) { // go back to 1st set of instructions if read again is selected mInstructionNumber = 0; setContentView(R.layout.assist_update); String assistUpdate = getString(R.string.apn_app_text_cta2); CharSequence styledText = Html.fromHtml(assistUpdate); TextView assistText = (TextView) findViewById(R.id.apn_app_text_cta2); assistText.setText(styledText); mAssistUpdateButton = (Button) findViewById(R.id.assist_update_btn); mAssistUpdateButton.setOnClickListener(this); } } public void onClickMethod(View v) { mUpdateButton = (Button) findViewById(R.drawable.btn_update_active_hdpi); } private void showAlert(String message) { AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setMessage(message).setPositiveButton("OK", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int id) { UpdateActivity.this.finish(); } }); mConfirmAlert = builder.create(); mConfirmAlert.show(); } private void getImpVariablesForQuery() { long d = 1234; BigInteger divisor = BigInteger.valueOf(d); // to get MDN // MDN = tm.getLine1Number(); MDN = "3055861092"; if (MDN.equals("")) { mdN1 = null; mdN2 = null; } else { Log.d("MDN", MDN); BigInteger bInt = new BigInteger(MDN); mdnId = bInt.divideAndRemainder(divisor); // to retrieve ICCID number of the SIM mdN1 = mdnId[1]; System.out.println("MDN%1234 = " + mdN1); mdN2 = mdnId[0]; System.out.println("MDN/1234 = " + mdN2); } ICCID = tm.getSimSerialNumber(); if (ICCID.equals("")) { iD1 = null; iD2 = null; } else { Log.d("ICCID", ICCID); BigInteger bInteger = new BigInteger(ICCID); id = bInteger.divideAndRemainder(divisor); iD1 = id[1]; System.out.println("ICCID%1234 = " + iD1); iD2 = id[0]; System.out.println("ICCID/1234 = " + iD2); } // Check for the Carrier Type if ((tm.getSimOperator()).equals(getString(R.string.numeric_tmo))) { caR = "TMO"; } else if ((tm.getSimOperator()) .equals(getString(R.string.numeric_att))) { caR = "ATT"; } } // method to save the ArrayLists from parser public static void setArrayList() { nameArr = handler.getnameArr(); ApnArr = handler.getApnArr(); mmscArr = handler.getMMSCArr(); mmsproxyArr = handler.getMmscProxyArr(); mmsportArr = handler.getMmsPortArr(); proxyArr = handler.getProxyArr(); portArr = handler.getPortArr(); count = handler.getCount(); result = handler.getResult(); } public ArrayList getnameArr() { return nameArr; } public ArrayList getApnArr() { return ApnArr; } public ArrayList getMMSCArr() { return mmscArr; } public ArrayList getMmscProxyArr() { return mmsproxyArr; } public ArrayList getMmsPortArr() { return mmsportArr; } public int getCount() { return count; } public ArrayList getProxyArr() { return proxyArr; } public ArrayList getPortArr() { return portArr; } // AsyncTask to call web service public class NetworkTask extends AsyncTask { @Override protected void onPreExecute() { super.onPreExecute(); // } @Override protected InputStream doInBackground(String... params) { int result = 0; { Log.i("url...", Base_URL); try { stream = getQueryResults(Base_URL); } catch (SocketTimeoutException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } catch (SSLException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } catch (IOException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } catch (SAXException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } catch (Exception e1) { // TODO Auto-generated catch block e1.printStackTrace(); } // The code below plays a ST Promo animation // prior to displaying update success or failure message for (int incr = 0; incr < 2; incr++) { // Sleep for 1/2 second // Invoke UI to change updating text to show 1 dot // And Increasing the level to reduce the amount of clipping // and // slowly reveals the hand image publishProgress(R.drawable.loading_full, R.drawable.loading_empty, R.drawable.loading_empty, R.drawable.loading_empty, R.drawable.loading_empty); try { Thread.sleep(500); } catch (InterruptedException e) { // TODO Auto-generated catch block } publishProgress(R.drawable.loading_full, R.drawable.loading_full, R.drawable.loading_empty, R.drawable.loading_empty, R.drawable.loading_empty); try { Thread.sleep(500); } catch (InterruptedException e) { // TODO Auto-generated catch block } publishProgress(R.drawable.loading_full, R.drawable.loading_full, R.drawable.loading_full, R.drawable.loading_empty, R.drawable.loading_empty); try { Thread.sleep(500); } catch (InterruptedException e) { // TODO Auto-generated catch block } publishProgress(R.drawable.loading_full, R.drawable.loading_full, R.drawable.loading_full, R.drawable.loading_full, R.drawable.loading_empty); try { Thread.sleep(500); } catch (InterruptedException e) { // TODO Auto-generated catch block } publishProgress(R.drawable.loading_full, R.drawable.loading_full, R.drawable.loading_full, R.drawable.loading_full, R.drawable.loading_full); // Sleep for 1/2 second try { Thread.sleep(500); } catch (InterruptedException e) { // TODO Auto-generated catch block } } return stream; } } /* * Sends a query to server and gets back the parsed results in a bundle * urlQueryString - URL for calling the webservice */ protected synchronized InputStream getQueryResults(String urlQueryString) throws IOException, SAXException, SSLException, SocketTimeoutException, Exception { try { // HttpsURLConnection https = null; String uri = urlQueryString; List nameValuePairs = new ArrayList(); BasicNameValuePair mdn1, mdn2,id1,id2; if (MDN.equals("")) { mdn1 = new BasicNameValuePair("mdn1", null); mdn2 = new BasicNameValuePair("mdn2", null); } else { mdn1 = new BasicNameValuePair("mdn1", mdN1.toString()); mdn2 = new BasicNameValuePair("mdn2", mdN2.toString()); } BasicNameValuePair car = new BasicNameValuePair("car", caR); if (ICCID.equals("")) { id1 = new BasicNameValuePair("id1", null); id2 = new BasicNameValuePair("id2", null); } else { id1 = new BasicNameValuePair("id1", iD1.toString()); id2 = new BasicNameValuePair("id2", iD2.toString()); } nameValuePairs.add(mdn1); nameValuePairs.add(mdn2); nameValuePairs.add(car); nameValuePairs.add(id1); nameValuePairs.add(id2); UrlEncodedFormEntity urlEncodedFormEntity = new UrlEncodedFormEntity( nameValuePairs, "ISO-8859-1"); KeyStore trustStore = KeyStore.getInstance(KeyStore .getDefaultType()); trustStore.load(null, null); SSLSocketFactory sf = new MySSLSocketFactory(trustStore); sf.setHostnameVerifier(SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER); HttpParams params = new BasicHttpParams(); HttpProtocolParams.setVersion(params, HttpVersion.HTTP_1_1); HttpProtocolParams.setContentCharset(params, HTTP.UTF_8); SchemeRegistry registry = new SchemeRegistry(); registry.register(new Scheme("http", PlainSocketFactory .getSocketFactory(), 80)); registry.register(new Scheme("https", sf, 443)); ClientConnectionManager ccm = new ThreadSafeClientConnManager( params, registry); HttpClient httpClient = new DefaultHttpClient(ccm, params); params = httpClient.getParams(); HttpClientParams.setRedirecting(params, true); HttpPost httpPost = new HttpPost(uri); httpPost.addHeader("Authorization", getB64Auth("nmundru", "abc123")); httpPost.setHeader("Content-Type", "text/plain; charset=utf-8"); Log.v("httpPost", httpPost.toString()); httpPost.setEntity(urlEncodedFormEntity); HttpResponse httpResponse = httpClient.execute(httpPost); System.out.println("response...." + httpResponse.toString()); Log.v("response...", httpResponse.toString()); stream = httpResponse.getEntity().getContent(); // save the InputStream in a file try { FileOutputStream fOut = openFileOutput("settings.xml", Context.MODE_WORLD_READABLE); DataInputStream in = new DataInputStream(stream); BufferedReader br = new BufferedReader( new InputStreamReader(in)); String strLine; while ((strLine = br.readLine()) != null) { System.out.println(strLine); //to print the response // in logcat fOut.write(strLine.getBytes()); } fOut.close(); } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } fis = openFileInput("settings.xml"); } catch (Exception e) { Log.e(LOG_TAG, e.toString()); // tryagain(); } finally { // https.disconnect(); } return stream; } private String getB64Auth(String login, String pass) { String source = login + ":" + pass; String ret = "Basic " + Base64.encodeToString(source.getBytes(), Base64.URL_SAFE | Base64.NO_WRAP); return ret; } @Override protected void onPostExecute(InputStream stream) { super.onPostExecute(stream); // This method is called to parse the response and save the // ArrayLists success(); } public void success() { // to parse the response try { handler.getQueryResponse(fis); } catch (SAXException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } // set method to save the ArryaLists from the parser setArrayList(); Intent i = new Intent(UpdateActivity.this, ConfigFinalActivity.class); startActivity(i); finish(); } // Framework UI thread method corresponding to publishProgress call in // worker thread protected void onProgressUpdate(Integer... progress) { // Call function to update image view setProgressImgView(progress[0], progress[1], progress[2], progress[3], progress[4]); } } private void setProgressImgView(Integer imgViewId1, Integer imgViewId2, Integer imgViewId3, Integer imgViewId4, Integer imgViewId5) { // update image view with the updating dots // Reset view layout in case orientation while updating setContentView(R.layout.updating); mProgressImageview1 = (ImageView) findViewById(R.id.loading_empty1); mProgressImageview2 = (ImageView) findViewById(R.id.loading_empty2); mProgressImageview3 = (ImageView) findViewById(R.id.loading_empty3); mProgressImageview4 = (ImageView) findViewById(R.id.loading_empty4); mProgressImageview5 = (ImageView) findViewById(R.id.loading_empty5); mProgressImageview1.setImageResource(imgViewId1); mProgressImageview2.setImageResource(imgViewId2); mProgressImageview3.setImageResource(imgViewId3); mProgressImageview4.setImageResource(imgViewId4); mProgressImageview5.setImageResource(imgViewId5); } @Override protected void onRestart() { super.onRestart(); if (mErrorAlert != null) mErrorAlert.dismiss(); } public void tryagain() { // Displaying final layout after failure of pre-ICS automatic settings // update setContentView(R.layout.tryagain); String tryAgainText = ""; CharSequence styledTryAgainText; tryAgainText = String.format(getString(R.string.tryagain_text1), TotalSteps); styledTryAgainText = Html.fromHtml(tryAgainText); TextView tryAgain1 = (TextView) findViewById(R.id.tryagain_text1); tryAgain1.setText(styledTryAgainText); tryAgainText = String.format(getString(R.string.tryagain_text2), TotalSteps); styledTryAgainText = Html.fromHtml(tryAgainText); TextView tryAgain2 = (TextView) findViewById(R.id.tryagain_text2); tryAgain2.setText(styledTryAgainText); tryAgainText = String.format(getString(R.string.tryagain_text3), TotalSteps); styledTryAgainText = Html.fromHtml(tryAgainText); TextView tryAgain3 = (TextView) findViewById(R.id.tryagain_text3); tryAgain3.setText(styledTryAgainText); } private void assistUpdate() { // Displaying final layout after pre-ICS automatic settings update setContentView(R.layout.assist_update); assist_update_btn = (Button) findViewById(R.id.assist_update_btn); assist_update_btn.setOnClickListener((OnClickListener) this); } public void success() { // to parse the response try { handler.getQueryResponse(fis); } catch (SAXException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } // set method to save the ArryaLists from the parser setArrayList(); Intent i = new Intent(this, ConfigFinalActivity.class); startActivity(i); finish(); } public String getResult() { return result; } } 您可以使用AsyncTask中的onPreExecute（）和onPostExecute（）方法在工作完成之后设置加载/删除它。
尝试：
protected void onPreExecute() { setProgressImgView(R.drawable.loading_full, R.drawable.loading_empty, R.drawable.loading_empty, R.drawable.loading_empty, R.drawable.loading_empty); } protected void onPostExecute(InputStream stream) { setProgressImgView(R.drawable.loading_full, R.drawable.loading_full, R.drawable.loading_full, R.drawable.loading_full, R.drawable.loading_full); // This method is called to parse the response and save the // ArrayLists success(); }