代码分析

lzb_branch
pvrwbep9f 2 years ago
parent bab3c7a79b
commit 6776b11d3e

@ -14,6 +14,11 @@
* limitations under the License.
*/
/*
* Description便sqldatanotedata
* SqlDataSqlNote
*/
package net.micode.notes.gtask.data;
import android.appwidget.AppWidgetManager;
@ -38,11 +43,28 @@ import org.json.JSONObject;
import java.util.ArrayList;
/*
* Description便sqldatanotedata
* SqlDataSqlNote
*/
/*
*
*
*
* Made By CuiCan
*/
public class SqlNote {
/*
* TAG
* getSimpleName ()
* Made By CuiCan
*/
private static final String TAG = SqlNote.class.getSimpleName();
private static final int INVALID_ID = -99999;
// 集合了interface NoteColumns中所有SF常量17个
public static final String[] PROJECTION_NOTE = new String[] {
NoteColumns.ID, NoteColumns.ALERTED_DATE, NoteColumns.BG_COLOR_ID,
NoteColumns.CREATED_DATE, NoteColumns.HAS_ATTACHMENT, NoteColumns.MODIFIED_DATE,
@ -52,6 +74,7 @@ public class SqlNote {
NoteColumns.VERSION
};
//以下设置17个列的编号
public static final int ID_COLUMN = 0;
public static final int ALERTED_DATE_COLUMN = 1;
@ -86,6 +109,7 @@ public class SqlNote {
public static final int VERSION_COLUMN = 16;
//一下定义了17个内部的变量其中12个可以由content中获得5个需要初始化为0或者new
private Context mContext;
private ContentResolver mContentResolver;
@ -122,6 +146,13 @@ public class SqlNote {
private ArrayList<SqlData> mDataList;
/*
*
* mIsCreate
*
* Made By CuiCan
*/
//构造函数只有context对所有的变量进行初始化
public SqlNote(Context context) {
mContext = context;
mContentResolver = context.getContentResolver();
@ -129,9 +160,9 @@ public class SqlNote {
mId = INVALID_ID;
mAlertDate = 0;
mBgColorId = ResourceParser.getDefaultBgId(context);
mCreatedDate = System.currentTimeMillis();
mCreatedDate = System.currentTimeMillis();//调用系统函数获得创建时间
mHasAttachment = 0;
mModifiedDate = System.currentTimeMillis();
mModifiedDate = System.currentTimeMillis();//最后一次修改时间初始化为创建时间
mParentId = 0;
mSnippet = "";
mType = Notes.TYPE_NOTE;
@ -143,17 +174,33 @@ public class SqlNote {
mDataList = new ArrayList<SqlData>();
}
/*
*
* mIsCreate
*
* Made By CuiCan
*/
//构造函数有context和一个数据库的cursor多数变量通过cursor指向的一条记录直接进行初始化
public SqlNote(Context context, Cursor c) {
mContext = context;
mContentResolver = context.getContentResolver();
mIsCreate = false;
loadFromCursor(c);
mDataList = new ArrayList<SqlData>();
//
if (mType == Notes.TYPE_NOTE)
loadDataContent();
mDiffNoteValues = new ContentValues();
}
/*
*
* mIsCreate
*
* Made By CuiCan
*/
public SqlNote(Context context, long id) {
mContext = context;
mContentResolver = context.getContentResolver();
@ -166,16 +213,21 @@ public class SqlNote {
}
/*
* id
* Made By CuiCan
*/
private void loadFromCursor(long id) {
Cursor c = null;
try {
c = mContentResolver.query(Notes.CONTENT_NOTE_URI, PROJECTION_NOTE, "(_id=?)",
new String[] {
String.valueOf(id)
}, null);
}, null);//通过id获得对应的ContentResolver中的cursor
if (c != null) {
c.moveToNext();
loadFromCursor(c);
loadFromCursor(c);//然后加载数据进行初始化,这样函数
//SqlNote(Context context, long id)与SqlNote(Context context, long id)的实现方式基本相同
} else {
Log.w(TAG, "loadFromCursor: cursor = null");
}
@ -185,7 +237,12 @@ public class SqlNote {
}
}
/*
*
* Made By CuiCan
*/
private void loadFromCursor(Cursor c) {
//直接从一条记录中的获得以下变量的初始值
mId = c.getLong(ID_COLUMN);
mAlertDate = c.getLong(ALERTED_DATE_COLUMN);
mBgColorId = c.getInt(BG_COLOR_ID_COLUMN);
@ -200,6 +257,11 @@ public class SqlNote {
mVersion = c.getLong(VERSION_COLUMN);
}
/*
* content
*
* Made By CuiCan
*/
private void loadDataContent() {
Cursor c = null;
mDataList.clear();
@ -226,6 +288,11 @@ public class SqlNote {
}
}
/*
* content
*
* Made By CuiCan
*/
public boolean setContent(JSONObject js) {
try {
JSONObject note = js.getJSONObject(GTaskStringUtils.META_HEAD_NOTE);
@ -267,7 +334,6 @@ public class SqlNote {
mDiffNoteValues.put(NoteColumns.BG_COLOR_ID, bgColorId);
}
mBgColorId = bgColorId;
long createDate = note.has(NoteColumns.CREATED_DATE) ? note
.getLong(NoteColumns.CREATED_DATE) : System.currentTimeMillis();
if (mIsCreate || mCreatedDate != createDate) {
@ -359,6 +425,11 @@ public class SqlNote {
return true;
}
/*
* contentnote
*
* Made By CuiCan
*/
public JSONObject getContent() {
try {
JSONObject js = new JSONObject();
@ -369,7 +440,7 @@ public class SqlNote {
}
JSONObject note = new JSONObject();
if (mType == Notes.TYPE_NOTE) {
if (mType == Notes.TYPE_NOTE) {//类型为note时
note.put(NoteColumns.ID, mId);
note.put(NoteColumns.ALERTED_DATE, mAlertDate);
note.put(NoteColumns.BG_COLOR_ID, mBgColorId);
@ -392,7 +463,7 @@ public class SqlNote {
}
}
js.put(GTaskStringUtils.META_HEAD_DATA, dataArray);
} else if (mType == Notes.TYPE_FOLDER || mType == Notes.TYPE_SYSTEM) {
} else if (mType == Notes.TYPE_FOLDER || mType == Notes.TYPE_SYSTEM) {//类型为文件夹或者
note.put(NoteColumns.ID, mId);
note.put(NoteColumns.TYPE, mType);
note.put(NoteColumns.SNIPPET, mSnippet);
@ -407,39 +478,84 @@ public class SqlNote {
return null;
}
/*
* idid
*
* Made By CuiCan
*/
public void setParentId(long id) {
mParentId = id;
mDiffNoteValues.put(NoteColumns.PARENT_ID, id);
}
/*
* idGtaskid
*
* Made By CuiCan
*/
public void setGtaskId(String gid) {
mDiffNoteValues.put(NoteColumns.GTASK_ID, gid);
}
/*
* idid
*
* Made By CuiCan
*/
public void setSyncId(long syncId) {
mDiffNoteValues.put(NoteColumns.SYNC_ID, syncId);
}
/*
*
*
* Made By CuiCan
*/
public void resetLocalModified() {
mDiffNoteValues.put(NoteColumns.LOCAL_MODIFIED, 0);
}
/*
* id
*
* Made By CuiCan
*/
public long getId() {
return mId;
}
/*
* idid
*
* Made By CuiCan
*/
public long getParentId() {
return mParentId;
}
/*
* 便
*
* Made By CuiCan
*/
public String getSnippet() {
return mSnippet;
}
/*
* 便
*
* Made By CuiCan
*/
public boolean isNoteType() {
return mType == Notes.TYPE_NOTE;
}
/*
* commit
*
* Made By CuiCan
*/
public void commit(boolean validateVersion) {
if (mIsCreate) {
if (mId == INVALID_ID && mDiffNoteValues.containsKey(NoteColumns.ID)) {
@ -458,7 +574,7 @@ public class SqlNote {
}
if (mType == Notes.TYPE_NOTE) {
for (SqlData sqlData : mDataList) {
for (SqlData sqlData : mDataList) {//直接使用sqldata中的实现
sqlData.commit(mId, false, -1);
}
}
@ -470,7 +586,7 @@ public class SqlNote {
if (mDiffNoteValues.size() > 0) {
mVersion ++;
int result = 0;
if (!validateVersion) {
if (!validateVersion) {//构造字符串
result = mContentResolver.update(Notes.CONTENT_NOTE_URI, mDiffNoteValues, "("
+ NoteColumns.ID + "=?)", new String[] {
String.valueOf(mId)

@ -32,25 +32,27 @@ import org.json.JSONException;
import org.json.JSONObject;
public class Task extends Node {
private static final String TAG = Task.class.getSimpleName();
private boolean mCompleted;
private boolean mCompleted;//是否完成
private String mNotes;
private JSONObject mMetaInfo;
private JSONObject mMetaInfo;//将在实例中存储数据的类型
private Task mPriorSibling;
private Task mPriorSibling;//对应的优先兄弟Task的指针待完善
private TaskList mParent;
private TaskList mParent;//所在的任务列表的指针
public Task() {
super();
mCompleted = false;
mNotes = null;
mPriorSibling = null;
mParent = null;
mPriorSibling = null;//TaskList中当前Task前面的Task的指针
mParent = null;//当前Task所在的TaskList
mMetaInfo = null;
}
@ -80,14 +82,18 @@ public class Task extends Node {
js.put(GTaskStringUtils.GTASK_JSON_ENTITY_DELTA, entity);
// parent_id
if (mParent!= null) {
js.put(GTaskStringUtils.GTASK_JSON_PARENT_ID, mParent.getGid());
}
// dest_parent_type
js.put(GTaskStringUtils.GTASK_JSON_DEST_PARENT_TYPE,
GTaskStringUtils.GTASK_JSON_TYPE_GROUP);
// list_id
if (mParent!= null) {
js.put(GTaskStringUtils.GTASK_JSON_LIST_ID, mParent.getGid());
}
// prior_sibling_id
if (mPriorSibling != null) {
@ -175,7 +181,7 @@ public class Task extends Node {
}
}
public void setContentByLocalJSON(JSONObject js) {
public void setContentByLocalJSON(JSONObject js) { //<2F><>metadata<74><61><EFBFBD><EFBFBD>ʵʩ
if (js == null || !js.has(GTaskStringUtils.META_HEAD_NOTE)
|| !js.has(GTaskStringUtils.META_HEAD_DATA)) {
Log.w(TAG, "setContentByLocalJSON: nothing is avaiable");

@ -30,12 +30,14 @@ import org.json.JSONObject;
import java.util.ArrayList;
public class TaskList extends Node {
private static final String TAG = TaskList.class.getSimpleName();
private static final String TAG = TaskList.class.getSimpleName();//tag标记
private int mIndex;
private int mIndex;//当前TaskList的指针
private ArrayList<Task> mChildren;
private ArrayList<Task> mChildren;//类中主要的保存数据的单元用来实现一个以Task为元素的ArrayList
public TaskList() {
super();
@ -43,6 +45,10 @@ public class TaskList extends Node {
mIndex = 1;
}
/* (non-Javadoc)
* @see net.micode.notes.gtask.data.Node#getCreateAction(int)
* JSONObject
*/
public JSONObject getCreateAction(int actionId) {
JSONObject js = new JSONObject();
@ -58,7 +64,7 @@ public class TaskList extends Node {
js.put(GTaskStringUtils.GTASK_JSON_INDEX, mIndex);
// entity_delta
JSONObject entity = new JSONObject();
JSONObject entity = new JSONObject();//entity实体
entity.put(GTaskStringUtils.GTASK_JSON_NAME, getName());
entity.put(GTaskStringUtils.GTASK_JSON_CREATOR_ID, "null");
entity.put(GTaskStringUtils.GTASK_JSON_ENTITY_TYPE,
@ -74,6 +80,10 @@ public class TaskList extends Node {
return js;
}
/* (non-Javadoc)
* @see net.micode.notes.gtask.data.Node#getUpdateAction(int)
* JSONObject
*/
public JSONObject getUpdateAction(int actionId) {
JSONObject js = new JSONObject();
@ -216,10 +226,19 @@ public class TaskList extends Node {
return SYNC_ACTION_ERROR;
}
/**
* @return
* TaskListmChildren
*/
public int getChildTaskCount() {
return mChildren.size();
}
/**
* @param task
* @return
*
*/
public boolean addChildTask(Task task) {
boolean ret = false;
if (task != null && !mChildren.contains(task)) {
@ -229,11 +248,19 @@ public class TaskList extends Node {
task.setPriorSibling(mChildren.isEmpty() ? null : mChildren
.get(mChildren.size() - 1));
task.setParent(this);
//注意每一次ArrayList的变化都要紧跟相关Task中PriorSibling的更改
//,接下来几个函数都有相关操作
}
}
return ret;
}
/**
* @param task
* @param index
* @return
*
*/
public boolean addChildTask(Task task, int index) {
if (index < 0 || index > mChildren.size()) {
Log.e(TAG, "add child task: invalid index");
@ -260,6 +287,11 @@ public class TaskList extends Node {
return true;
}
/**
* @param task
* @return
* TaskListTask
*/
public boolean removeChildTask(Task task) {
boolean ret = false;
int index = mChildren.indexOf(task);
@ -281,6 +313,12 @@ public class TaskList extends Node {
return ret;
}
/**
* @param task
* @param index
* @return
* TaskListTaskindex
*/
public boolean moveChildTask(Task task, int index) {
if (index < 0 || index >= mChildren.size()) {
@ -297,8 +335,14 @@ public class TaskList extends Node {
if (pos == index)
return true;
return (removeChildTask(task) && addChildTask(task, index));
//利用已实现好的功能完成当下功能;
}
/**
* @param gid
* @return
* gidTask
*/
public Task findChildTaskByGid(String gid) {
for (int i = 0; i < mChildren.size(); i++) {
Task t = mChildren.get(i);
@ -309,10 +353,20 @@ public class TaskList extends Node {
return null;
}
/**
* @param task
* @return
* Taskindex
*/
public int getChildTaskIndex(Task task) {
return mChildren.indexOf(task);
}
/**
* @param index
* @return
* indexTask
*/
public Task getChildTaskByIndex(int index) {
if (index < 0 || index >= mChildren.size()) {
Log.e(TAG, "getTaskByIndex: invalid index");
@ -321,8 +375,13 @@ public class TaskList extends Node {
return mChildren.get(index);
}
/**
* @param gid
* @return
* gidTask
*/
public Task getChilTaskByGid(String gid) {
for (Task task : mChildren) {
for (Task task : mChildren) {//一种常见的ArrayList的遍历方法四种见精读笔记
if (task.getGid().equals(gid))
return task;
}

@ -1,28 +1,27 @@
/*
* Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* Description便
*/
package net.micode.notes.gtask.exception;
public class ActionFailureException extends RuntimeException {
private static final long serialVersionUID = 4425249765923293627L;
/*
* serialVersionUIDjava
* serialVersionUID
* Made By Cuican
*/
public ActionFailureException() {
super();
}
/*
* JAVA使superthis.
* new
* 使super
* super()super (paramString)Exception ()Exception (paramString)
* Made By Cuican
*/
public ActionFailureException(String paramString) {
super(paramString);
}

@ -1,28 +1,28 @@
/*
* Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* Description便
*/
package net.micode.notes.gtask.exception;
public class NetworkFailureException extends Exception {
private static final long serialVersionUID = 2107610287180234136L;
/*
* serialVersionUIDjava
* serialVersionUID
* Made By Cuican
*/
public NetworkFailureException() {
super();
}
/*
* JAVA使superthis.
* new
* 使super
* super()super (paramString)Exception ()Exception (paramString)
* Made By Cuican
*/
public NetworkFailureException(String paramString) {
super(paramString);
}

@ -29,8 +29,18 @@ import net.micode.notes.ui.NotesListActivity;
import net.micode.notes.ui.NotesPreferenceActivity;
/*GTask
*
* private void showNotification(int tickerId, String content)
* protected Integer doInBackground(Void... unused) 线
* protected void onProgressUpdate(String... progress) 使 线
* protected void onPostExecute(Integer result) Handler UI使doInBackground UI
*/
public class GTaskASyncTask extends AsyncTask<Void, String, Integer> {
private static int GTASK_SYNC_NOTIFICATION_ID = 5234235;
public interface OnCompleteListener {
@ -57,24 +67,22 @@ public class GTaskASyncTask extends AsyncTask<Void, String, Integer> {
mTaskManager.cancelSync();
}
public void publishProgess(String message) {
public void publishProgess(String message) { // 发布进度单位系统将会调用onProgressUpdate()方法更新这些值
publishProgress(new String[] {
message
});
}
private void showNotification(int tickerId, String content) {
PendingIntent pendingIntent;
PendingIntent pendingIntent; //一个描述了想要启动一个Activity、Broadcast或是Service的意图
if (tickerId != R.string.ticker_success) {
pendingIntent = PendingIntent.getActivity(mContext, 0, new Intent(mContext,
NotesPreferenceActivity.class), 0);
NotesPreferenceActivity.class), 0); //如果同步不成功那么从系统取得一个用于启动一个NotesPreferenceActivity的PendingIntent对象
} else {
pendingIntent = PendingIntent.getActivity(mContext, 0, new Intent(mContext,
NotesListActivity.class), 0);
}
NotesListActivity.class), 0); //如果同步成功那么从系统取得一个用于启动一个NotesListActivity的PendingIntent对象
}
Notification.Builder builder = new Notification.Builder(mContext)
.setAutoCancel(true)
.setContentTitle(mContext.getString(R.string.app_name))
@ -83,31 +91,30 @@ public class GTaskASyncTask extends AsyncTask<Void, String, Integer> {
.setWhen(System.currentTimeMillis())
.setOngoing(true);
Notification notification=builder.getNotification();
mNotifiManager.notify(GTASK_SYNC_NOTIFICATION_ID, notification);
mNotifiManager.notify(GTASK_SYNC_NOTIFICATION_ID, notification);//通过NotificationManager对象的notify方法来执行一个notification的消息
}
@Override
protected Integer doInBackground(Void... unused) {
publishProgess(mContext.getString(R.string.sync_progress_login, NotesPreferenceActivity
.getSyncAccountName(mContext)));
return mTaskManager.sync(mContext, this);
.getSyncAccountName(mContext))); //利用getString,将把 NotesPreferenceActivity.getSyncAccountName(mContext))的字符串内容传进sync_progress_login中
return mTaskManager.sync(mContext, this); //进行后台同步具体操作
}
@Override
protected void onProgressUpdate(String... progress) {
showNotification(R.string.ticker_syncing, progress[0]);
if (mContext instanceof GTaskSyncService) {
if (mContext instanceof GTaskSyncService) { //instanceof 判断mContext是否是GTaskSyncService的实例
((GTaskSyncService) mContext).sendBroadcast(progress[0]);
}
}
@Override
protected void onPostExecute(Integer result) {
protected void onPostExecute(Integer result) { //用于在执行完后台任务后更新UI,显示结果
if (result == GTaskManager.STATE_SUCCESS) {
showNotification(R.string.ticker_success, mContext.getString(
R.string.success_sync_account, mTaskManager.getSyncAccount()));
NotesPreferenceActivity.setLastSyncTime(mContext, System.currentTimeMillis());
NotesPreferenceActivity.setLastSyncTime(mContext, System.currentTimeMillis()); //设置最新同步的时间
} else if (result == GTaskManager.STATE_NETWORK_ERROR) {
showNotification(R.string.ticker_fail, mContext.getString(R.string.error_sync_network));
} else if (result == GTaskManager.STATE_INTERNAL_ERROR) {
@ -115,11 +122,11 @@ public class GTaskASyncTask extends AsyncTask<Void, String, Integer> {
} else if (result == GTaskManager.STATE_SYNC_CANCELLED) {
showNotification(R.string.ticker_cancel, mContext
.getString(R.string.error_sync_cancelled));
}
} //几种不同情况下的结果显示
if (mOnCompleteListener != null) {
new Thread(new Runnable() {
new Thread(new Runnable() { //这里好像是方法内的一个线程,但是并不太懂什么意思
public void run() {
public void run() { //完成后的操作使用onComplete()将所有值都重新初始化,相当于完成一次操作
mOnCompleteListener.onComplete();
}
}).start();

@ -61,10 +61,16 @@ import java.util.zip.Inflater;
import java.util.zip.InflaterInputStream;
/*
* GTASKGTASK
* 使accountManager JSONObject HttpParams authToken Gid
*/
public class GTaskClient {
private static final String TAG = GTaskClient.class.getSimpleName();
private static final String GTASK_URL = "https://mail.google.com/tasks/";
private static final String GTASK_URL = "https://mail.google.com/tasks/"; //这个是指定的URL
private static final String GTASK_GET_URL = "https://mail.google.com/tasks/ig";
@ -102,6 +108,10 @@ public class GTaskClient {
mUpdateArray = null;
}
/*
* 使 getInstance()
* mInstance
*/
public static synchronized GTaskClient getInstance() {
if (mInstance == null) {
mInstance = new GTaskClient();
@ -109,42 +119,50 @@ public class GTaskClient {
return mInstance;
}
/*Activity
*
* 使URL使URL
* truefalse
*/
public boolean login(Activity activity) {
// we suppose that the cookie would expire after 5 minutes
// then we need to re-login
//判断距离最后一次登录操作是否超过5分钟
final long interval = 1000 * 60 * 5;
if (mLastLoginTime + interval < System.currentTimeMillis()) {
mLoggedin = false;
}
// need to re-login after account switch
// need to re-login after account switch 重新登录操作
if (mLoggedin
&& !TextUtils.equals(getSyncAccount().name, NotesPreferenceActivity
.getSyncAccountName(activity))) {
mLoggedin = false;
}
//如果没超过时间,则不需要重新登录
if (mLoggedin) {
Log.d(TAG, "already logged in");
return true;
}
mLastLoginTime = System.currentTimeMillis();
String authToken = loginGoogleAccount(activity, false);
mLastLoginTime = System.currentTimeMillis();//更新最后登录时间,改为系统当前的时间
String authToken = loginGoogleAccount(activity, false);//判断是否登录到谷歌账户
if (authToken == null) {
Log.e(TAG, "login google account failed");
return false;
}
// login with custom domain if necessary
if (!(mAccount.name.toLowerCase().endsWith("gmail.com") || mAccount.name.toLowerCase()
//尝试使用用户自己的域名登录
if (!(mAccount.name.toLowerCase().endsWith("gmail.com") || mAccount.name.toLowerCase() //将用户账号名改为统一格式(小写)后判断是否为一个谷歌账号地址
.endsWith("googlemail.com"))) {
StringBuilder url = new StringBuilder(GTASK_URL).append("a/");
int index = mAccount.name.indexOf('@') + 1;
String suffix = mAccount.name.substring(index);
url.append(suffix + "/");
mGetUrl = url.toString() + "ig";
mPostUrl = url.toString() + "r/ig";
mGetUrl = url.toString() + "ig"; //设置用户对应的getUrl
mPostUrl = url.toString() + "r/ig"; //设置用户对应的postUrl
if (tryToLoginGtask(activity, authToken)) {
mLoggedin = true;
@ -152,6 +170,7 @@ public class GTaskClient {
}
// try to login with google official url
//如果用户账户无法登录则使用谷歌官方的URI进行登录
if (!mLoggedin) {
mGetUrl = GTASK_GET_URL;
mPostUrl = GTASK_POST_URL;
@ -164,10 +183,15 @@ public class GTaskClient {
return true;
}
/*
* 使
* 使AccountManager
*
*/
private String loginGoogleAccount(Activity activity, boolean invalidateToken) {
String authToken;
AccountManager accountManager = AccountManager.get(activity);
Account[] accounts = accountManager.getAccountsByType("com.google");
String authToken; //令牌,是登录操作保证安全性的一个方法
AccountManager accountManager = AccountManager.get(activity);//AccountManager这个类给用户提供了集中注册账号的接口
Account[] accounts = accountManager.getAccountsByType("com.google");//获取全部以com.google结尾的account
if (accounts.length == 0) {
Log.e(TAG, "there is no available google account");
@ -176,6 +200,7 @@ public class GTaskClient {
String accountName = NotesPreferenceActivity.getSyncAccountName(activity);
Account account = null;
//遍历获得的accounts信息寻找已经记录过的账户信息
for (Account a : accounts) {
if (a.name.equals(accountName)) {
account = a;
@ -190,11 +215,13 @@ public class GTaskClient {
}
// get the token now
//获取选中账号的令牌
AccountManagerFuture<Bundle> accountManagerFuture = accountManager.getAuthToken(account,
"goanna_mobile", null, activity, null, null);
try {
Bundle authTokenBundle = accountManagerFuture.getResult();
authToken = authTokenBundle.getString(AccountManager.KEY_AUTHTOKEN);
//如果是invalidateToken那么需要调用invalidateAuthToken(String, String)方法废除这个无效token
if (invalidateToken) {
accountManager.invalidateAuthToken("com.google", authToken);
loginGoogleAccount(activity, false);
@ -207,10 +234,12 @@ public class GTaskClient {
return authToken;
}
//尝试登陆Gtask这只是一个预先判断令牌是否是有效以及是否能登上GTask的方法,而不是具体实现登陆的方法
private boolean tryToLoginGtask(Activity activity, String authToken) {
if (!loginGtask(authToken)) {
// maybe the auth token is out of date, now let's invalidate the
// maybe the auth token is out of authTokedate, now let's invalidate the
// token and try again
//删除过一个无效的authToken申请一个新的后再次尝试登陆
authToken = loginGoogleAccount(activity, true);
if (authToken == null) {
Log.e(TAG, "login google account failed");
@ -225,25 +254,27 @@ public class GTaskClient {
return true;
}
//实现登录GTask的具体操作
private boolean loginGtask(String authToken) {
int timeoutConnection = 10000;
int timeoutSocket = 15000;
HttpParams httpParameters = new BasicHttpParams();
HttpConnectionParams.setConnectionTimeout(httpParameters, timeoutConnection);
HttpConnectionParams.setSoTimeout(httpParameters, timeoutSocket);
int timeoutSocket = 15000; //socket是一种通信连接实现数据的交换的端口
HttpParams httpParameters = new BasicHttpParams(); //实例化一个新的HTTP参数类
HttpConnectionParams.setConnectionTimeout(httpParameters, timeoutConnection);//设置连接超时时间
HttpConnectionParams.setSoTimeout(httpParameters, timeoutSocket);//设置设置端口超时时间
mHttpClient = new DefaultHttpClient(httpParameters);
BasicCookieStore localBasicCookieStore = new BasicCookieStore();
BasicCookieStore localBasicCookieStore = new BasicCookieStore(); //设置本地cookie
mHttpClient.setCookieStore(localBasicCookieStore);
HttpProtocolParams.setUseExpectContinue(mHttpClient.getParams(), false);
// login gtask
try {
String loginUrl = mGetUrl + "?auth=" + authToken;
HttpGet httpGet = new HttpGet(loginUrl);
String loginUrl = mGetUrl + "?auth=" + authToken; //设置登录的url
HttpGet httpGet = new HttpGet(loginUrl); //通过登录的uri实例化网页上资源的查找
HttpResponse response = null;
response = mHttpClient.execute(httpGet);
// get the cookie now
//获取CookieStore里存放的cookie,看如果存有“GTL(不知道什么意思)”则说明有验证成功的有效的cookie
List<Cookie> cookies = mHttpClient.getCookieStore().getCookies();
boolean hasAuthCookie = false;
for (Cookie cookie : cookies) {
@ -256,6 +287,7 @@ public class GTaskClient {
}
// get the client version
//获取client的内容具体操作是在返回的Content中截取从_setup(开始到)}</script>中间的字符串内容也就是gtask_url的内容
String resString = getResponseContent(response.getEntity());
String jsBegin = "_setup(";
String jsEnd = ")}</script>";
@ -284,6 +316,10 @@ public class GTaskClient {
return mActionId++;
}
/*
* 使HttpPost
* httpPost
*/
private HttpPost createHttpPost() {
HttpPost httpPost = new HttpPost(mPostUrl);
httpPost.setHeader("Content-Type", "application/x-www-form-urlencoded;charset=utf-8");
@ -291,24 +327,28 @@ public class GTaskClient {
return httpPost;
}
/*URL
* 使getContentEncoding()
*
*/
private String getResponseContent(HttpEntity entity) throws IOException {
String contentEncoding = null;
if (entity.getContentEncoding() != null) {
if (entity.getContentEncoding() != null) {//通过URL得到HttpEntity对象如果不为空则使用getContent方法创建一个流将数据从网络都过来
contentEncoding = entity.getContentEncoding().getValue();
Log.d(TAG, "encoding: " + contentEncoding);
}
InputStream input = entity.getContent();
if (contentEncoding != null && contentEncoding.equalsIgnoreCase("gzip")) {
if (contentEncoding != null && contentEncoding.equalsIgnoreCase("gzip")) {//GZIP是使用DEFLATE进行压缩数据的另一个压缩库
input = new GZIPInputStream(entity.getContent());
} else if (contentEncoding != null && contentEncoding.equalsIgnoreCase("deflate")) {
} else if (contentEncoding != null && contentEncoding.equalsIgnoreCase("deflate")) {//DEFLATE是一个无专利的压缩算法它可以实现无损数据压缩
Inflater inflater = new Inflater(true);
input = new InflaterInputStream(entity.getContent(), inflater);
}
try {
InputStreamReader isr = new InputStreamReader(input);
BufferedReader br = new BufferedReader(isr);
BufferedReader br = new BufferedReader(isr);//是一个包装类,它可以包装字符流,将字符流放入缓存里,先把字符读到缓存里,到缓存满了时候,再读入内存,是为了提供读的效率而设计的
StringBuilder sb = new StringBuilder();
while (true) {
@ -323,20 +363,28 @@ public class GTaskClient {
}
}
/*JSON
* jsonjs
* UrlEncodedFormEntity entityhttpPost.setEntity(entity)jshttpPost
* 使getResponseContent
* json
*/
private JSONObject postRequest(JSONObject js) throws NetworkFailureException {
if (!mLoggedin) {
if (!mLoggedin) {//未登录
Log.e(TAG, "please login first");
throw new ActionFailureException("not logged in");
}
//实例化一个httpPost的对象用来向服务器传输数据在这里就是发送请求而请求的内容在js里
HttpPost httpPost = createHttpPost();
try {
LinkedList<BasicNameValuePair> list = new LinkedList<BasicNameValuePair>();
list.add(new BasicNameValuePair("r", js.toString()));
UrlEncodedFormEntity entity = new UrlEncodedFormEntity(list, "UTF-8");
UrlEncodedFormEntity entity = new UrlEncodedFormEntity(list, "UTF-8"); //UrlEncodedFormEntity()的形式比较单一,是普通的键值对
httpPost.setEntity(entity);
// execute the post
//执行这个请求
HttpResponse response = mHttpClient.execute(httpPost);
String jsString = getResponseContent(response.getEntity());
return new JSONObject(jsString);
@ -360,6 +408,12 @@ public class GTaskClient {
}
}
/*
* .gtask.data.TaskTask
* jsonTask,jsPost
* postRequest
* 使task.setGidtasknew_ID
*/
public void createTask(Task task) throws NetworkFailureException {
commitUpdate();
try {
@ -386,6 +440,9 @@ public class GTaskClient {
}
}
/*
* createTasktasklistgid
*/
public void createTaskList(TaskList tasklist) throws NetworkFailureException {
commitUpdate();
try {
@ -412,6 +469,11 @@ public class GTaskClient {
}
}
/*
*
* 使JSONObject使jsPost.putPutUpdateArrayClientVersion
* 使postRequestjspost,
*/
public void commitUpdate() throws NetworkFailureException {
if (mUpdateArray != null) {
try {
@ -433,6 +495,10 @@ public class GTaskClient {
}
}
/*
*
* commitUpdate()
*/
public void addUpdateNode(Node node) throws NetworkFailureException {
if (node != null) {
// too many update items may result in an error
@ -447,6 +513,12 @@ public class GTaskClient {
}
}
/*
* task,tasktask
* getGidtaskgid
* JSONObject.put(String name, Object value)task
* postRequest
*/
public void moveTask(Task task, TaskList preParent, TaskList curParent)
throws NetworkFailureException {
commitUpdate();
@ -463,15 +535,17 @@ public class GTaskClient {
if (preParent == curParent && task.getPriorSibling() != null) {
// put prioring_sibing_id only if moving within the tasklist and
// it is not the first one
//设置优先级ID只有当移动是发生在文件中
action.put(GTaskStringUtils.GTASK_JSON_PRIOR_SIBLING_ID, task.getPriorSibling());
}
action.put(GTaskStringUtils.GTASK_JSON_SOURCE_LIST, preParent.getGid());
action.put(GTaskStringUtils.GTASK_JSON_DEST_PARENT, curParent.getGid());
action.put(GTaskStringUtils.GTASK_JSON_SOURCE_LIST, preParent.getGid()); //设置移动前所属列表
action.put(GTaskStringUtils.GTASK_JSON_DEST_PARENT, curParent.getGid()); //设置当前所属列表
if (preParent != curParent) {
// put the dest_list only if moving between tasklists
action.put(GTaskStringUtils.GTASK_JSON_DEST_LIST, curParent.getGid());
}
actionList.put(action);
//最后将ACTION_LIST加入到jsPost中
jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList);
// client_version
@ -486,6 +560,11 @@ public class GTaskClient {
}
}
/*
*
* JSON
* 使postRequest
*/
public void deleteNode(Node node) throws NetworkFailureException {
commitUpdate();
try {
@ -494,7 +573,7 @@ public class GTaskClient {
// action_list
node.setDeleted(true);
actionList.put(node.getUpdateAction(getActionId()));
actionList.put(node.getUpdateAction(getActionId())); //这里会获取到删除操作的ID加入到actionLiast中
jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList);
// client_version
@ -509,6 +588,11 @@ public class GTaskClient {
}
}
/*
*
* GetURI使getResponseContent
* "_setup(")}</script>GTASK_JSON_LISTS
*/
public JSONArray getTaskLists() throws NetworkFailureException {
if (!mLoggedin) {
Log.e(TAG, "please login first");
@ -521,6 +605,7 @@ public class GTaskClient {
response = mHttpClient.execute(httpGet);
// get the task list
//筛选工作把筛选出的字符串放入jsString
String resString = getResponseContent(response.getEntity());
String jsBegin = "_setup(";
String jsEnd = ")}</script>";
@ -531,6 +616,7 @@ public class GTaskClient {
jsString = resString.substring(begin + jsBegin.length(), end);
}
JSONObject js = new JSONObject(jsString);
//获取GTASK_JSON_LISTS
return js.getJSONObject("t").getJSONArray(GTaskStringUtils.GTASK_JSON_LISTS);
} catch (ClientProtocolException e) {
Log.e(TAG, e.toString());
@ -547,6 +633,9 @@ public class GTaskClient {
}
}
/*
* TASKListgid,
*/
public JSONArray getTaskList(String listGid) throws NetworkFailureException {
commitUpdate();
try {
@ -558,7 +647,7 @@ public class GTaskClient {
action.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE,
GTaskStringUtils.GTASK_JSON_ACTION_TYPE_GETALL);
action.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, getActionId());
action.put(GTaskStringUtils.GTASK_JSON_LIST_ID, listGid);
action.put(GTaskStringUtils.GTASK_JSON_LIST_ID, listGid); //这里设置为传入的listGid
action.put(GTaskStringUtils.GTASK_JSON_GET_DELETED, false);
actionList.put(action);
jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList);
@ -579,6 +668,7 @@ public class GTaskClient {
return mAccount;
}
//重置更新的内容
public void resetUpdateArray() {
mUpdateArray = null;
}

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