Java tutorial
/******************************************************************************* * This file is part of RedReader. * * RedReader is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * RedReader is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with RedReader. If not, see <http://www.gnu.org/licenses/>. ******************************************************************************/ package com.ryan.ryanreader.activities; import android.content.Intent; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.os.Bundle; import android.os.Handler; import android.os.Looper; import android.text.InputType; import android.view.Gravity; import android.view.View; import android.widget.ImageView; import android.widget.ScrollView; import org.apache.http.StatusLine; import org.holoeverywhere.app.Activity; import org.holoeverywhere.widget.Button; import org.holoeverywhere.widget.EditText; import org.holoeverywhere.widget.LinearLayout; import com.ryan.ryanreader.R; import com.ryan.ryanreader.account.RedditAccount; import com.ryan.ryanreader.account.RedditAccountManager; import com.ryan.ryanreader.cache.CacheManager; import com.ryan.ryanreader.cache.CacheRequest; import com.ryan.ryanreader.cache.RequestFailureType; import com.ryan.ryanreader.common.Constants; import com.ryan.ryanreader.common.General; import com.ryan.ryanreader.common.PrefsUtility; import com.ryan.ryanreader.common.RRError; import com.ryan.ryanreader.reddit.APIResponseHandler; import com.ryan.ryanreader.reddit.RedditAPI; import com.ryan.ryanreader.views.liststatus.LoadingView; import java.io.IOException; import java.net.URI; import java.util.UUID; public class CaptchaActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { PrefsUtility.applyTheme(this); getSupportActionBar().setTitle(R.string.post_captcha_title); super.onCreate(savedInstanceState); final LoadingView loadingView = new LoadingView(this, R.string.download_waiting, true, true); setContentView(loadingView); final RedditAccount selectedAccount = RedditAccountManager.getInstance(this) .getAccount(getIntent().getStringExtra("username")); final CacheManager cm = CacheManager.getInstance(this); RedditAPI.newCaptcha(cm, new APIResponseHandler.NewCaptchaResponseHandler(this) { @Override protected void onSuccess(final String captchaId) { final URI captchaUrl = Constants.Reddit.getUri("/captcha/" + captchaId); cm.makeRequest(new CacheRequest(captchaUrl, RedditAccountManager.getAnon(), null, Constants.Priority.CAPTCHA, 0, CacheRequest.DownloadType.FORCE, Constants.FileType.CAPTCHA, false, false, true, CaptchaActivity.this) { @Override protected void onCallbackException(Throwable t) { BugReportActivity.handleGlobalError(CaptchaActivity.this, t); } @Override protected void onDownloadNecessary() { } @Override protected void onDownloadStarted() { loadingView.setIndeterminate(R.string.download_downloading); } @Override protected void onFailure(RequestFailureType type, Throwable t, StatusLine status, String readableMessage) { final RRError error = General.getGeneralErrorForFailure(CaptchaActivity.this, type, t, status); General.showResultDialog(CaptchaActivity.this, error); finish(); } @Override protected void onProgress(long bytesRead, long totalBytes) { loadingView.setProgress(R.string.download_downloading, (float) ((double) bytesRead / (double) totalBytes)); } @Override protected void onSuccess(final CacheManager.ReadableCacheFile cacheFile, long timestamp, UUID session, boolean fromCache, String mimetype) { final Bitmap image; try { image = BitmapFactory.decodeStream(cacheFile.getInputStream()); } catch (IOException e) { BugReportActivity.handleGlobalError(CaptchaActivity.this, e); return; } new Handler(Looper.getMainLooper()).post(new Runnable() { public void run() { final LinearLayout ll = new LinearLayout(CaptchaActivity.this); ll.setOrientation(LinearLayout.VERTICAL); final ImageView captchaImg = new ImageView(CaptchaActivity.this); ll.addView(captchaImg); final LinearLayout.LayoutParams layoutParams = (LinearLayout.LayoutParams) captchaImg .getLayoutParams(); layoutParams.setMargins(20, 20, 20, 20); layoutParams.height = General.dpToPixels(context, 100); captchaImg.setScaleType(ImageView.ScaleType.FIT_CENTER); final EditText captchaText = new EditText(CaptchaActivity.this); ll.addView(captchaText); ((LinearLayout.LayoutParams) captchaText.getLayoutParams()).setMargins(20, 0, 20, 20); captchaText.setInputType(android.text.InputType.TYPE_CLASS_TEXT | android.text.InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD | InputType.TYPE_TEXT_FLAG_CAP_CHARACTERS); captchaImg.setImageBitmap(image); final Button submitButton = new Button(CaptchaActivity.this); submitButton.setText(R.string.post_captcha_submit_button); ll.addView(submitButton); ((LinearLayout.LayoutParams) submitButton.getLayoutParams()).setMargins(20, 0, 20, 20); ((LinearLayout.LayoutParams) submitButton .getLayoutParams()).gravity = Gravity.RIGHT; ((LinearLayout.LayoutParams) submitButton .getLayoutParams()).width = LinearLayout.LayoutParams.WRAP_CONTENT; submitButton.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { final Intent result = new Intent(); result.putExtra("captchaId", captchaId); result.putExtra("captchaText", captchaText.getText().toString()); setResult(RESULT_OK, result); finish(); } }); final ScrollView sv = new ScrollView(CaptchaActivity.this); sv.addView(ll); setContentView(sv); } }); } }); } @Override protected void onCallbackException(Throwable t) { BugReportActivity.handleGlobalError(CaptchaActivity.this, t); } @Override protected void onFailure(RequestFailureType type, Throwable t, StatusLine status, String readableMessage) { final RRError error = General.getGeneralErrorForFailure(CaptchaActivity.this, type, t, status); General.showResultDialog(CaptchaActivity.this, error); finish(); } @Override protected void onFailure(APIFailureType type) { final RRError error = General.getGeneralErrorForFailure(CaptchaActivity.this, type); General.showResultDialog(CaptchaActivity.this, error); finish(); } }, selectedAccount, this); } }