现在的位置: 首页 > 移动开发> 正文
Sencha Touch 程序设计体验之笔记本
2012年04月02日 移动开发 Sencha Touch 程序设计体验之笔记本已关闭评论 ⁄ 被围观 1,749+

这几天进行进行 webmobile App的设计,起初的设计方案采用的是 Jquery Mobile + PhoneGap,原想应该工作的不错,没想到到了最后,进行程序结合测试的时候出现了一个莫名奇妙的问题,那就是,利用Jquery Mobile进行页面切换,反复进行七次以上的连环页面跳转,同时在后台发送 Ajax数据请求,从服务器download数据,就会破坏PhoneGap的本地工作机制,导致后面的PhoneGap本地函数调用无法正常进行,PhoneGap的工作原理也是ajax通信机制,在环境出错的情况下,总是返回status = 0的状态,无奈解决了两天还是没有彻底解决,现在着手试着另一套界面设计框架Sencha Touch。

学习Sencha Touch,改写了别人的一个APP,一个记事本程序,详细的E文请参照《writing a sencha touch application》。

笔记本程序的运行效果图如下(分别是笔记列表和笔记编辑页面):
notelistnoteedit

当时设计该程序的代码基于Sencha Touch1.1.0,现在Sencha Touch已经发布了2.0版本,所以里面有很多代码已经无法正常工作了,本文还是按照作者当初的设计思路,重新基于Sencha Touch2.0进行了编码工作,程序已经可以正常运行,后面附上本程序的JS源码:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
var App = new Ext.application({
name : 'NotesApp',
useLoadMask : true,
 
launch : function () {
notesListToolbar = Ext.create('Ext.Toolbar', {
id: 'notesListToolbar',
docked: 'top',
title: '记事本',
layout: 'hbox',
items: [
{ xtype: 'spacer' },
{
id: 'newNoteButton',
text: '新建笔记',
ui: 'action',
handler: function () {
var now = new Date();
var noteId = now.getTime();
var note = Ext.ModelMgr.create(
{ id: noteId, date: now, title: '', narrative: '' },
'Note'
);
 
noteEditor.setRecord(note);
Ext.Viewport.setActiveItem('noteEditor', {type: 'slide', direction: 'left'});
}
}
]
});
 
Ext.regModel('Note', {
idProperty: 'id',
fields: [
{ name: 'id', type: 'int' },
{ name: 'date', type: 'date', dateFormat: 'c' },
{ name: 'title', type: 'string' },
{ name: 'narrative', type: 'string' }
],
validations: [
{ type: 'presence', field: 'id' },
{ type: 'presence', field: 'title', message: '请输入笔记的标题!' }
]
});
 
Ext.regStore('NotesStore', {
model: 'Note',
sorters: [{
property: 'date',
direction: 'DESC'
}],
proxy: {
type: 'localstorage',
id: 'notes-app-localstore'
},
getGroupString: function (record) {
if (record && record.data.date) {
return record.get('date').toDateString();
} else {
return '';
}
},
});
 
notesList = Ext.create('Ext.List', {
id: 'notesList',
store: 'NotesStore',
grouped: true,
emptyText: '<div style="margin: 5px;">目前还没有创建笔记.</div>',
loadingText: '正在读取笔记 ...',
itemTpl: '<div class="list-item-title">{title}</div>' +
'<div class="list-item-narrative">{narrative}</div>',
onItemDisclosure: function (record) {
var selectedNote = record;
noteEditor.setRecord(selectedNote);
Ext.Viewport.setActiveItem('noteEditor', { type: 'slide', direction: 'left' });
},
listeners: {
'render': function (thisComponent) {
thisComponent.getStore().load();
},
}
});
 
notesListContainer = Ext.create('Ext.Panel', {
id : 'notesListContainer',
layout : 'fit',
items: [notesListToolbar, notesList],
html: 'This is the notes list container'
});
 
noteEditorTopToolbar = Ext.create('Ext.Toolbar', {
title: '编辑笔记',
docked: 'top',
 
items: [
{
text: '记事本',
ui: 'back',
handler: function () {
Ext.Viewport.setActiveItem('notesListContainer', { type: 'slide', direction: 'right' });
}
},
{ xtype: 'spacer' },
{
text: '保存',
ui: 'action',
handler: function () {
var currentNote = noteEditor.getRecord();
// Update the note with the values in the form fields.
noteEditor.updateRecord(currentNote);
 
var errors = currentNote.validate();
if (!errors.isValid()) {
currentNote.reject();
Ext.Msg.alert('请等待...', errors.getByField('title')[0].getMessage(), Ext.emptyFn);
return;
}
 
var notesStore = notesList.getStore();
 
if (notesStore.findRecord('id', currentNote.data.id) === null) {
notesStore.add(currentNote);
} else {
currentNote.setDirty();
}
 
notesStore.sync();
notesStore.sort([{ property: 'date', direction: 'DESC'}]);
 
notesList.refresh();
 
Ext.Viewport.setActiveItem('notesListContainer', { type: 'slide', direction: 'right' });
}
}
]
});
 
noteEditorBottomToolbar = Ext.create('Ext.Toolbar', {
docked: 'bottom',
 
items: [
{ xtype: 'spacer' },
{
iconCls: 'trash',
iconMask: true,
handler: function () {
var currentNote = noteEditor.getRecord();
var notesStore = notesList.getStore();
 
if (notesStore.findRecord('id', currentNote.data.id)) {
notesStore.remove(currentNote);
}
 
notesStore.sync();
 
notesList.refresh();
Ext.Viewport.setActiveItem('notesListContainer', { type: 'slide', direction: 'right' });
}
}
]
});
 
noteEditor = Ext.create('Ext.form.FormPanel',{
id: 'noteEditor',
items: [
noteEditorTopToolbar,
{
xtype: 'textfield',
name: 'title',
label: '笔记标题',
required: true
},
{
xtype: 'textareafield',
name: 'narrative',
label: '笔记内容'
},
noteEditorBottomToolbar
]
});
 
mainPanel = Ext.create('Ext.Panel', {
fullscreen: true,
layout : 'card',
cardAnimation : 'slide',
items: [notesListContainer, noteEditor]
});
 
Ext.Viewport.add(mainPanel);
}
})
var App = new Ext.application({
name : 'NotesApp',
useLoadMask : true,

launch : function () {
notesListToolbar = Ext.create('Ext.Toolbar', {
id: 'notesListToolbar',
docked: 'top',
title: '记事本',
layout: 'hbox',
items: [
{ xtype: 'spacer' },
{
id: 'newNoteButton',
text: '新建笔记',
ui: 'action',
handler: function () {
var now = new Date();
var noteId = now.getTime();
var note = Ext.ModelMgr.create(
{ id: noteId, date: now, title: '', narrative: '' },
'Note'
);

noteEditor.setRecord(note);
Ext.Viewport.setActiveItem('noteEditor', {type: 'slide', direction: 'left'});
}
}
]
});

Ext.regModel('Note', {
idProperty: 'id',
fields: [
{ name: 'id', type: 'int' },
{ name: 'date', type: 'date', dateFormat: 'c' },
{ name: 'title', type: 'string' },
{ name: 'narrative', type: 'string' }
],
validations: [
{ type: 'presence', field: 'id' },
{ type: 'presence', field: 'title', message: '请输入笔记的标题!' }
]
});

Ext.regStore('NotesStore', {
model: 'Note',
sorters: [{
property: 'date',
direction: 'DESC'
}],
proxy: {
type: 'localstorage',
id: 'notes-app-localstore'
},
getGroupString: function (record) {
if (record && record.data.date) {
return record.get('date').toDateString();
} else {
return '';
}
},
});

notesList = Ext.create('Ext.List', {
id: 'notesList',
store: 'NotesStore',
grouped: true,
emptyText: '<div style="margin: 5px;">目前还没有创建笔记.</div>',
loadingText: '正在读取笔记 ...',
itemTpl: '<div class="list-item-title">{title}</div>' +
'<div class="list-item-narrative">{narrative}</div>',
onItemDisclosure: function (record) {
var selectedNote = record;
noteEditor.setRecord(selectedNote);
Ext.Viewport.setActiveItem('noteEditor', { type: 'slide', direction: 'left' });
},
listeners: {
'render': function (thisComponent) {
thisComponent.getStore().load();
},
}
});

notesListContainer = Ext.create('Ext.Panel', {
id : 'notesListContainer',
layout : 'fit',
items: [notesListToolbar, notesList],
html: 'This is the notes list container'
});

noteEditorTopToolbar = Ext.create('Ext.Toolbar', {
title: '编辑笔记',
docked: 'top',

items: [
{
text: '记事本',
ui: 'back',
handler: function () {
Ext.Viewport.setActiveItem('notesListContainer', { type: 'slide', direction: 'right' });
}
},
{ xtype: 'spacer' },
{
text: '保存',
ui: 'action',
handler: function () {
var currentNote = noteEditor.getRecord();
// Update the note with the values in the form fields.
noteEditor.updateRecord(currentNote);

var errors = currentNote.validate();
if (!errors.isValid()) {
currentNote.reject();
Ext.Msg.alert('请等待...', errors.getByField('title')[0].getMessage(), Ext.emptyFn);
return;
}

var notesStore = notesList.getStore();

if (notesStore.findRecord('id', currentNote.data.id) === null) {
notesStore.add(currentNote);
} else {
currentNote.setDirty();
}

notesStore.sync();
notesStore.sort([{ property: 'date', direction: 'DESC'}]);

notesList.refresh();

Ext.Viewport.setActiveItem('notesListContainer', { type: 'slide', direction: 'right' });
}
}
]
});

noteEditorBottomToolbar = Ext.create('Ext.Toolbar', {
docked: 'bottom',

items: [
{ xtype: 'spacer' },
{
iconCls: 'trash',
iconMask: true,
handler: function () {
var currentNote = noteEditor.getRecord();
var notesStore = notesList.getStore();

if (notesStore.findRecord('id', currentNote.data.id)) {
notesStore.remove(currentNote);
}

notesStore.sync();

notesList.refresh();
Ext.Viewport.setActiveItem('notesListContainer', { type: 'slide', direction: 'right' });
}
}
]
});

noteEditor = Ext.create('Ext.form.FormPanel',{
id: 'noteEditor',
items: [
noteEditorTopToolbar,
{
xtype: 'textfield',
name: 'title',
label: '笔记标题',
required: true
},
{
xtype: 'textareafield',
name: 'narrative',
label: '笔记内容'
},
noteEditorBottomToolbar
]
});

mainPanel = Ext.create('Ext.Panel', {
fullscreen: true,
layout : 'card',
cardAnimation : 'slide',
items: [notesListContainer, noteEditor]
});

Ext.Viewport.add(mainPanel);
}
})

有兴趣学习Sencha Touch的童鞋,该sample还是一个不错的入门选择,接下来再挑选几个不错的sample来update。

抱歉!评论已关闭.

×
腾讯微博