Java tutorial
/* * Copyright (C) 2014 AChep@xda <ynkr.wang@gmail.com> * * This program 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 2 * of the License, or (at your option) any later version. * * This program 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 this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, * MA 02110-1301, USA. */ package com.bullmobi.base.ui.fragments.dialogs; import android.app.Activity; import android.app.Dialog; import android.content.Context; import android.content.Intent; import android.content.pm.PackageInfo; import android.content.pm.PackageManager; import android.net.Uri; import android.os.Bundle; import android.support.annotation.NonNull; import android.support.annotation.Nullable; import android.support.v4.app.DialogFragment; import android.support.v7.app.ActionBarActivity; import android.view.View; import android.view.ViewGroup; import android.view.ViewStub; import android.widget.AdapterView; import android.widget.CheckBox; import android.widget.EditText; import android.widget.Spinner; import com.bullmobi.message.Config; import com.bullmobi.message.R; import com.bullmobi.message.providers.LogAttachmentProvider; import com.bullmobi.message.ui.DialogHelper; import com.bullmobi.base.Build; import com.bullmobi.base.Device; import com.bullmobi.base.content.ConfigBase; import com.bullmobi.base.providers.LogsProviderBase; import com.bullmobi.base.utils.FileUtils; import com.bullmobi.base.utils.IntentUtils; import com.bullmobi.base.utils.PackageUtils; import com.bullmobi.base.utils.ResUtils; import com.bullmobi.base.utils.ToastUtils; import com.bullmobi.base.utils.ViewUtils; import com.bullmobi.base.utils.logcat.Logcat; import com.afollestad.materialdialogs.MaterialDialog; import org.json.JSONException; import org.json.JSONObject; import java.io.File; import java.text.SimpleDateFormat; import java.util.Date; import java.util.Locale; import java.util.TimeZone; import static com.bullmobi.base.Build.DEBUG; /** * Feedback dialog fragment. * <p/> * Provides an UI for sending bugs & suggestions on my email. */ public class FeedbackDialog extends DialogFragment implements ConfigBase.OnConfigChangedListener { private static final String TAG = "FeedbackDialog"; private View mFaqContainer; private Spinner mSpinner; private EditText mEditText; private CheckBox mAttachLogCheckBox; private final AdapterView.OnItemSelectedListener mListener = new AdapterView.OnItemSelectedListener() { @Override public void onItemSelected(AdapterView<?> parent, View view, int position, long id) { // Show "Attach log" checkbox only if the type // of this message is "Issue". ViewUtils.setVisible(mAttachLogCheckBox, position == 0); } @Override public void onNothingSelected(AdapterView<?> parent) { ViewUtils.setVisible(mAttachLogCheckBox, false); } }; @Override public void onResume() { super.onResume(); Config config = Config.getInstance(); config.registerListener(this); updateFaqPanel(config.getTriggers().isHelpRead()); } @Override public void onPause() { Config config = Config.getInstance(); config.unregisterListener(this); super.onPause(); } @Override public void onConfigChanged(@NonNull ConfigBase config, @NonNull String key, @NonNull Object value) { switch (key) { case Config.KEY_TRIG_HELP_READ: boolean read = (boolean) value; updateFaqPanel(read); break; } } @NonNull @Override public Dialog onCreateDialog(Bundle savedInstanceState) { Activity activity = getActivity(); assert activity != null; MaterialDialog md = new MaterialDialog.Builder(activity).iconRes(R.drawable.ic_action_feedback_white) .title(R.string.feedback_dialog_title).customView(R.layout.feedback_dialog, true) .negativeText(android.R.string.cancel).positiveText(R.string.send) .callback(new MaterialDialog.ButtonCallback() { @Override public void onPositive(MaterialDialog dialog) { Context context = getActivity(); CharSequence message = mEditText.getText(); if (isMessageLongEnough(message)) { boolean attachLog = mAttachLogCheckBox.isChecked() && mAttachLogCheckBox.getVisibility() == View.VISIBLE; int type = mSpinner.getSelectedItemPosition(); CharSequence title = createTitle(context, type); CharSequence body = createBody(context, message); send(title, body, attachLog); } else { String toastText = getString(R.string.feedback_error_msg_too_short, getMinMessageLength()); ToastUtils.showShort(context, toastText); } } @Override public void onNegative(MaterialDialog dialog) { dismiss(); } }).autoDismiss(false).build(); View view = md.getCustomView(); assert view != null; mSpinner = (Spinner) view.findViewById(R.id.type); mSpinner.setOnItemSelectedListener(mListener); mEditText = (EditText) view.findViewById(R.id.message); mAttachLogCheckBox = (CheckBox) view.findViewById(R.id.checkbox); // Frequently asked questions panel Config.Triggers triggers = Config.getInstance().getTriggers(); if (!triggers.isHelpRead()) initFaqPanel((ViewGroup) view); return md; } /** * Initialize Frequently asked questions panel. This panel is here to reduce * the number of already answered questions. */ private void initFaqPanel(@NonNull ViewGroup root) { mFaqContainer = ((ViewStub) root.findViewById(R.id.faq)).inflate(); mFaqContainer.findViewById(R.id.faq).setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { ActionBarActivity activity = (ActionBarActivity) getActivity(); DialogHelper.showHelpDialog(activity); } }); } /** * Removes Frequently asked questions panel from the view * and sets {@link #mFaqContainer} to null. * After calling this method you no longer able to get panel back. */ private void recycleFaqPanel() { ViewGroup viewGroup = (ViewGroup) mFaqContainer.getParent(); viewGroup.removeView(mFaqContainer); mFaqContainer = null; } /** * {@link #recycleFaqPanel() Recycles} Frequently asked questions panel when it's not needed * anymore. * * @param isHelpRead {@code true} to recycle panel, {@code false} to do nothing. */ private void updateFaqPanel(boolean isHelpRead) { if (mFaqContainer != null && isHelpRead) { recycleFaqPanel(); } } private void send(@NonNull CharSequence title, @NonNull CharSequence body, boolean attachLog) { Activity context = getActivity(); String[] recipients = { Build.SUPPORT_EMAIL }; Intent intent = new Intent().putExtra(Intent.EXTRA_EMAIL, recipients).putExtra(Intent.EXTRA_SUBJECT, title) .putExtra(Intent.EXTRA_TEXT, body); if (attachLog) { attachLog(intent); intent.setAction(Intent.ACTION_SEND); intent.setType("message/rfc822"); } else { intent.setAction(Intent.ACTION_SENDTO); intent.setData(Uri.parse("mailto:")); // only email apps should handle it } if (IntentUtils.hasActivityForThat(context, intent)) { startActivity(intent); dismiss(); } else { ToastUtils.showLong(context, R.string.feedback_error_no_app); } } /** * Creates the title of the email. * * @param type one of the following types: * 0 - issue * 1 - suggestion * 2 - other * @return the title of the email. */ @NonNull private CharSequence createTitle(@NonNull Context context, int type) { CharSequence osVersion = Device.API_VERSION_NAME_SHORT; CharSequence[] types = new CharSequence[] { "issue", "suggestion", "other" }; return AboutDialog.getVersionName(context) + ": " + osVersion + ", " + types[type]; } /** * Creates the body of the email. It automatically adds some * info about the device. * * @param msg the message that been typed by user. * @return the body of the email */ @NonNull private CharSequence createBody(@NonNull Context context, @NonNull CharSequence msg) { final String extra; do { PackageInfo pi; try { pi = context.getPackageManager().getPackageInfo(PackageUtils.getName(context), 0); } catch (PackageManager.NameNotFoundException e) { extra = "There was an exception while getting my own package info."; break; } JSONObject obj = new JSONObject(); try { Config config = Config.getInstance(); // App related stuff obj.put("app_version_code", pi.versionCode); obj.put("app_version_name", pi.versionName); obj.put("app_timestamp", Build.TIME_STAMP); obj.put("app_is_debug", DEBUG); obj.put("app_is_help_read", config.getTriggers().isHelpRead()); obj.put("app_launch_count", config.getTriggers().getLaunchCount()); // Device related stuff obj.put("language", Locale.getDefault().getLanguage()); obj.put("android_version_release", android.os.Build.VERSION.RELEASE); obj.put("android_version_sdk_int", android.os.Build.VERSION.SDK_INT); obj.put("android_build_display", android.os.Build.DISPLAY); obj.put("android_build_brand", android.os.Build.BRAND); obj.put("android_build_model", android.os.Build.MODEL); } catch (JSONException ignored) { extra = "There was an exception while building JSON."; break; } extra = obj.toString().replaceAll(",\"", ", \""); } while (false); return msg + "\n\nExtras (added automatically & do not change):\n" + extra; } private boolean isMessageLongEnough(@Nullable CharSequence message) { return message != null && message.length() >= getMinMessageLength(); } private int getMinMessageLength() { return getResources().getInteger(R.integer.config_feedback_minMessageLength); } private void attachLog(@NonNull Intent intent) { Context context = getActivity(); try { String log = Logcat.capture(); if (log == null) throw new Exception("Failed to capture the logcat."); // Prepare cache directory. File cacheDir = context.getCacheDir(); if (cacheDir == null) throw new Exception("Cache directory is inaccessible"); File directory = new File(cacheDir, LogsProviderBase.DIRECTORY); FileUtils.deleteRecursive(directory); // Clean-up cache folder if (!directory.mkdirs()) throw new Exception("Failed to create cache directory."); // Create log file. SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd_HHmmss"); sdf.setTimeZone(TimeZone.getTimeZone("UTC")); String fileName = "EasyNotification_log_" + sdf.format(new Date()) + ".txt"; File file = new File(directory, fileName); // Write to the file. if (!FileUtils.writeToFile(file, log)) throw new Exception("Failed to write log to the file."); // Put extra stream to the intent. Uri uri = Uri.parse("content://" + LogAttachmentProvider.AUTHORITY + "/" + fileName); intent.putExtra(Intent.EXTRA_STREAM, uri); } catch (Exception e) { String message = ResUtils.getString(getResources(), R.string.feedback_error_accessing_log, e.getMessage()); ToastUtils.showLong(context, message); } } }