-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy path16-01-introduction.html
686 lines (598 loc) · 25.3 KB
/
16-01-introduction.html
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
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><title>Introduction à Android</title><style>
/* cspell:disable-file */
/* webkit printing magic: print all background colors */
html {
-webkit-print-color-adjust: exact;
}
* {
box-sizing: border-box;
-webkit-print-color-adjust: exact;
}
html,
body {
margin: 0;
padding: 0;
}
@media only screen {
body {
margin: 2em auto;
max-width: 900px;
color: rgb(55, 53, 47);
}
}
body {
line-height: 1.5;
white-space: pre-wrap;
}
a,
a.visited {
color: inherit;
text-decoration: underline;
}
.pdf-relative-link-path {
font-size: 80%;
color: #444;
}
h1,
h2,
h3 {
letter-spacing: -0.01em;
line-height: 1.2;
font-weight: 600;
margin-bottom: 0;
}
.page-title {
font-size: 2.5rem;
font-weight: 700;
margin-top: 0;
margin-bottom: 0.75em;
}
h1 {
font-size: 1.875rem;
margin-top: 1.875rem;
}
h2 {
font-size: 1.5rem;
margin-top: 1.5rem;
}
h3 {
font-size: 1.25rem;
margin-top: 1.25rem;
}
.source {
border: 1px solid #ddd;
border-radius: 3px;
padding: 1.5em;
word-break: break-all;
}
.callout {
border-radius: 3px;
padding: 1rem;
}
figure {
margin: 1.25em 0;
page-break-inside: avoid;
}
figcaption {
opacity: 0.5;
font-size: 85%;
margin-top: 0.5em;
}
mark {
background-color: transparent;
}
.indented {
padding-left: 1.5em;
}
hr {
background: transparent;
display: block;
width: 100%;
height: 1px;
visibility: visible;
border: none;
border-bottom: 1px solid rgba(55, 53, 47, 0.09);
}
img {
max-width: 100%;
}
@media only print {
img {
max-height: 100vh;
object-fit: contain;
}
}
@page {
margin: 1in;
}
.collection-content {
font-size: 0.875rem;
}
.column-list {
display: flex;
justify-content: space-between;
}
.column {
padding: 0 1em;
}
.column:first-child {
padding-left: 0;
}
.column:last-child {
padding-right: 0;
}
.table_of_contents-item {
display: block;
font-size: 0.875rem;
line-height: 1.3;
padding: 0.125rem;
}
.table_of_contents-indent-1 {
margin-left: 1.5rem;
}
.table_of_contents-indent-2 {
margin-left: 3rem;
}
.table_of_contents-indent-3 {
margin-left: 4.5rem;
}
.table_of_contents-link {
text-decoration: none;
opacity: 0.7;
border-bottom: 1px solid rgba(55, 53, 47, 0.18);
}
table,
th,
td {
border: 1px solid rgba(55, 53, 47, 0.09);
border-collapse: collapse;
}
table {
border-left: none;
border-right: none;
}
th,
td {
font-weight: normal;
padding: 0.25em 0.5em;
line-height: 1.5;
min-height: 1.5em;
text-align: left;
}
th {
color: rgba(55, 53, 47, 0.6);
}
ol,
ul {
margin: 0;
margin-block-start: 0.6em;
margin-block-end: 0.6em;
}
li > ol:first-child,
li > ul:first-child {
margin-block-start: 0.6em;
}
ul > li {
list-style: disc;
}
ul.to-do-list {
text-indent: -1.7em;
}
ul.to-do-list > li {
list-style: none;
}
.to-do-children-checked {
text-decoration: line-through;
opacity: 0.375;
}
ul.toggle > li {
list-style: none;
}
ul {
padding-inline-start: 1.7em;
}
ul > li {
padding-left: 0.1em;
}
ol {
padding-inline-start: 1.6em;
}
ol > li {
padding-left: 0.2em;
}
.mono ol {
padding-inline-start: 2em;
}
.mono ol > li {
text-indent: -0.4em;
}
.toggle {
padding-inline-start: 0em;
list-style-type: none;
}
/* Indent toggle children */
.toggle > li > details {
padding-left: 1.7em;
}
.toggle > li > details > summary {
margin-left: -1.1em;
}
.selected-value {
display: inline-block;
padding: 0 0.5em;
background: rgba(206, 205, 202, 0.5);
border-radius: 3px;
margin-right: 0.5em;
margin-top: 0.3em;
margin-bottom: 0.3em;
white-space: nowrap;
}
.collection-title {
display: inline-block;
margin-right: 1em;
}
.simple-table {
margin-top: 1em;
font-size: 0.875rem;
empty-cells: show;
}
.simple-table td {
height: 29px;
min-width: 120px;
}
.simple-table th {
height: 29px;
min-width: 120px;
}
.simple-table-header-color {
background: rgb(247, 246, 243);
color: black;
}
.simple-table-header {
font-weight: 500;
}
time {
opacity: 0.5;
}
.icon {
display: inline-block;
max-width: 1.2em;
max-height: 1.2em;
text-decoration: none;
vertical-align: text-bottom;
margin-right: 0.5em;
}
img.icon {
border-radius: 3px;
}
.user-icon {
width: 1.5em;
height: 1.5em;
border-radius: 100%;
margin-right: 0.5rem;
}
.user-icon-inner {
font-size: 0.8em;
}
.text-icon {
border: 1px solid #000;
text-align: center;
}
.page-cover-image {
display: block;
object-fit: cover;
width: 100%;
max-height: 30vh;
}
.page-header-icon {
font-size: 3rem;
margin-bottom: 1rem;
}
.page-header-icon-with-cover {
margin-top: -0.72em;
margin-left: 0.07em;
}
.page-header-icon img {
border-radius: 3px;
}
.link-to-page {
margin: 1em 0;
padding: 0;
border: none;
font-weight: 500;
}
p > .user {
opacity: 0.5;
}
td > .user,
td > time {
white-space: nowrap;
}
input[type="checkbox"] {
transform: scale(1.5);
margin-right: 0.6em;
vertical-align: middle;
}
p {
margin-top: 0.5em;
margin-bottom: 0.5em;
}
.image {
border: none;
margin: 1.5em 0;
padding: 0;
border-radius: 0;
text-align: center;
}
.code,
code {
background: rgba(135, 131, 120, 0.15);
border-radius: 3px;
padding: 0.2em 0.4em;
border-radius: 3px;
font-size: 85%;
tab-size: 2;
}
code {
color: #eb5757;
}
.code {
padding: 1.5em 1em;
}
.code-wrap {
white-space: pre-wrap;
word-break: break-all;
}
.code > code {
background: none;
padding: 0;
font-size: 100%;
color: inherit;
}
blockquote {
font-size: 1.25em;
margin: 1em 0;
padding-left: 1em;
border-left: 3px solid rgb(55, 53, 47);
}
.bookmark {
text-decoration: none;
max-height: 8em;
padding: 0;
display: flex;
width: 100%;
align-items: stretch;
}
.bookmark-title {
font-size: 0.85em;
overflow: hidden;
text-overflow: ellipsis;
height: 1.75em;
white-space: nowrap;
}
.bookmark-text {
display: flex;
flex-direction: column;
}
.bookmark-info {
flex: 4 1 180px;
padding: 12px 14px 14px;
display: flex;
flex-direction: column;
justify-content: space-between;
}
.bookmark-image {
width: 33%;
flex: 1 1 180px;
display: block;
position: relative;
object-fit: cover;
border-radius: 1px;
}
.bookmark-description {
color: rgba(55, 53, 47, 0.6);
font-size: 0.75em;
overflow: hidden;
max-height: 4.5em;
word-break: break-word;
}
.bookmark-href {
font-size: 0.75em;
margin-top: 0.25em;
}
.sans { font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, "Apple Color Emoji", Arial, sans-serif, "Segoe UI Emoji", "Segoe UI Symbol"; }
.code { font-family: "SFMono-Regular", Menlo, Consolas, "PT Mono", "Liberation Mono", Courier, monospace; }
.serif { font-family: Lyon-Text, Georgia, ui-serif, serif; }
.mono { font-family: iawriter-mono, Nitti, Menlo, Courier, monospace; }
.pdf .sans { font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, "Apple Color Emoji", Arial, sans-serif, "Segoe UI Emoji", "Segoe UI Symbol", 'Twemoji', 'Noto Color Emoji', 'Noto Sans CJK JP'; }
.pdf:lang(zh-CN) .sans { font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, "Apple Color Emoji", Arial, sans-serif, "Segoe UI Emoji", "Segoe UI Symbol", 'Twemoji', 'Noto Color Emoji', 'Noto Sans CJK SC'; }
.pdf:lang(zh-TW) .sans { font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, "Apple Color Emoji", Arial, sans-serif, "Segoe UI Emoji", "Segoe UI Symbol", 'Twemoji', 'Noto Color Emoji', 'Noto Sans CJK TC'; }
.pdf:lang(ko-KR) .sans { font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, "Apple Color Emoji", Arial, sans-serif, "Segoe UI Emoji", "Segoe UI Symbol", 'Twemoji', 'Noto Color Emoji', 'Noto Sans CJK KR'; }
.pdf .code { font-family: Source Code Pro, "SFMono-Regular", Menlo, Consolas, "PT Mono", "Liberation Mono", Courier, monospace, 'Twemoji', 'Noto Color Emoji', 'Noto Sans Mono CJK JP'; }
.pdf:lang(zh-CN) .code { font-family: Source Code Pro, "SFMono-Regular", Menlo, Consolas, "PT Mono", "Liberation Mono", Courier, monospace, 'Twemoji', 'Noto Color Emoji', 'Noto Sans Mono CJK SC'; }
.pdf:lang(zh-TW) .code { font-family: Source Code Pro, "SFMono-Regular", Menlo, Consolas, "PT Mono", "Liberation Mono", Courier, monospace, 'Twemoji', 'Noto Color Emoji', 'Noto Sans Mono CJK TC'; }
.pdf:lang(ko-KR) .code { font-family: Source Code Pro, "SFMono-Regular", Menlo, Consolas, "PT Mono", "Liberation Mono", Courier, monospace, 'Twemoji', 'Noto Color Emoji', 'Noto Sans Mono CJK KR'; }
.pdf .serif { font-family: PT Serif, Lyon-Text, Georgia, ui-serif, serif, 'Twemoji', 'Noto Color Emoji', 'Noto Serif CJK JP'; }
.pdf:lang(zh-CN) .serif { font-family: PT Serif, Lyon-Text, Georgia, ui-serif, serif, 'Twemoji', 'Noto Color Emoji', 'Noto Serif CJK SC'; }
.pdf:lang(zh-TW) .serif { font-family: PT Serif, Lyon-Text, Georgia, ui-serif, serif, 'Twemoji', 'Noto Color Emoji', 'Noto Serif CJK TC'; }
.pdf:lang(ko-KR) .serif { font-family: PT Serif, Lyon-Text, Georgia, ui-serif, serif, 'Twemoji', 'Noto Color Emoji', 'Noto Serif CJK KR'; }
.pdf .mono { font-family: PT Mono, iawriter-mono, Nitti, Menlo, Courier, monospace, 'Twemoji', 'Noto Color Emoji', 'Noto Sans Mono CJK JP'; }
.pdf:lang(zh-CN) .mono { font-family: PT Mono, iawriter-mono, Nitti, Menlo, Courier, monospace, 'Twemoji', 'Noto Color Emoji', 'Noto Sans Mono CJK SC'; }
.pdf:lang(zh-TW) .mono { font-family: PT Mono, iawriter-mono, Nitti, Menlo, Courier, monospace, 'Twemoji', 'Noto Color Emoji', 'Noto Sans Mono CJK TC'; }
.pdf:lang(ko-KR) .mono { font-family: PT Mono, iawriter-mono, Nitti, Menlo, Courier, monospace, 'Twemoji', 'Noto Color Emoji', 'Noto Sans Mono CJK KR'; }
.highlight-default {
color: rgba(55, 53, 47, 1);
}
.highlight-gray {
color: rgba(120, 119, 116, 1);
fill: rgba(120, 119, 116, 1);
}
.highlight-brown {
color: rgba(159, 107, 83, 1);
fill: rgba(159, 107, 83, 1);
}
.highlight-orange {
color: rgba(217, 115, 13, 1);
fill: rgba(217, 115, 13, 1);
}
.highlight-yellow {
color: rgba(203, 145, 47, 1);
fill: rgba(203, 145, 47, 1);
}
.highlight-teal {
color: rgba(68, 131, 97, 1);
fill: rgba(68, 131, 97, 1);
}
.highlight-blue {
color: rgba(51, 126, 169, 1);
fill: rgba(51, 126, 169, 1);
}
.highlight-purple {
color: rgba(144, 101, 176, 1);
fill: rgba(144, 101, 176, 1);
}
.highlight-pink {
color: rgba(193, 76, 138, 1);
fill: rgba(193, 76, 138, 1);
}
.highlight-red {
color: rgba(212, 76, 71, 1);
fill: rgba(212, 76, 71, 1);
}
.highlight-gray_background {
background: rgba(241, 241, 239, 1);
}
.highlight-brown_background {
background: rgba(244, 238, 238, 1);
}
.highlight-orange_background {
background: rgba(251, 236, 221, 1);
}
.highlight-yellow_background {
background: rgba(251, 243, 219, 1);
}
.highlight-teal_background {
background: rgba(237, 243, 236, 1);
}
.highlight-blue_background {
background: rgba(231, 243, 248, 1);
}
.highlight-purple_background {
background: rgba(244, 240, 247, 0.8);
}
.highlight-pink_background {
background: rgba(249, 238, 243, 0.8);
}
.highlight-red_background {
background: rgba(253, 235, 236, 1);
}
.block-color-default {
color: inherit;
fill: inherit;
}
.block-color-gray {
color: rgba(120, 119, 116, 1);
fill: rgba(120, 119, 116, 1);
}
.block-color-brown {
color: rgba(159, 107, 83, 1);
fill: rgba(159, 107, 83, 1);
}
.block-color-orange {
color: rgba(217, 115, 13, 1);
fill: rgba(217, 115, 13, 1);
}
.block-color-yellow {
color: rgba(203, 145, 47, 1);
fill: rgba(203, 145, 47, 1);
}
.block-color-teal {
color: rgba(68, 131, 97, 1);
fill: rgba(68, 131, 97, 1);
}
.block-color-blue {
color: rgba(51, 126, 169, 1);
fill: rgba(51, 126, 169, 1);
}
.block-color-purple {
color: rgba(144, 101, 176, 1);
fill: rgba(144, 101, 176, 1);
}
.block-color-pink {
color: rgba(193, 76, 138, 1);
fill: rgba(193, 76, 138, 1);
}
.block-color-red {
color: rgba(212, 76, 71, 1);
fill: rgba(212, 76, 71, 1);
}
.block-color-gray_background {
background: rgba(241, 241, 239, 1);
}
.block-color-brown_background {
background: rgba(244, 238, 238, 1);
}
.block-color-orange_background {
background: rgba(251, 236, 221, 1);
}
.block-color-yellow_background {
background: rgba(251, 243, 219, 1);
}
.block-color-teal_background {
background: rgba(237, 243, 236, 1);
}
.block-color-blue_background {
background: rgba(231, 243, 248, 1);
}
.block-color-purple_background {
background: rgba(244, 240, 247, 0.8);
}
.block-color-pink_background {
background: rgba(249, 238, 243, 0.8);
}
.block-color-red_background {
background: rgba(253, 235, 236, 1);
}
.select-value-color-pink { background-color: rgba(245, 224, 233, 1); }
.select-value-color-purple { background-color: rgba(232, 222, 238, 1); }
.select-value-color-green { background-color: rgba(219, 237, 219, 1); }
.select-value-color-gray { background-color: rgba(227, 226, 224, 1); }
.select-value-color-opaquegray { background-color: rgba(255, 255, 255, 0.0375); }
.select-value-color-orange { background-color: rgba(250, 222, 201, 1); }
.select-value-color-brown { background-color: rgba(238, 224, 218, 1); }
.select-value-color-red { background-color: rgba(255, 226, 221, 1); }
.select-value-color-yellow { background-color: rgba(253, 236, 200, 1); }
.select-value-color-blue { background-color: rgba(211, 229, 239, 1); }
.checkbox {
display: inline-flex;
vertical-align: text-bottom;
width: 16;
height: 16;
background-size: 16px;
margin-left: 2px;
margin-right: 5px;
}
.checkbox-on {
background-image: url("data:image/svg+xml;charset=UTF-8,%3Csvg%20width%3D%2216%22%20height%3D%2216%22%20viewBox%3D%220%200%2016%2016%22%20fill%3D%22none%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%3E%0A%3Crect%20width%3D%2216%22%20height%3D%2216%22%20fill%3D%22%2358A9D7%22%2F%3E%0A%3Cpath%20d%3D%22M6.71429%2012.2852L14%204.9995L12.7143%203.71436L6.71429%209.71378L3.28571%206.2831L2%207.57092L6.71429%2012.2852Z%22%20fill%3D%22white%22%2F%3E%0A%3C%2Fsvg%3E");
}
.checkbox-off {
background-image: url("data:image/svg+xml;charset=UTF-8,%3Csvg%20width%3D%2216%22%20height%3D%2216%22%20viewBox%3D%220%200%2016%2016%22%20fill%3D%22none%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%3E%0A%3Crect%20x%3D%220.75%22%20y%3D%220.75%22%20width%3D%2214.5%22%20height%3D%2214.5%22%20fill%3D%22white%22%20stroke%3D%22%2336352F%22%20stroke-width%3D%221.5%22%2F%3E%0A%3C%2Fsvg%3E");
}
</style></head><body><article id="db914813-d3e8-4db4-b216-ef22a5c0ccc1" class="page sans"><header><img class="page-cover-image" src="media/16-01-introduction/2023-03-10_21_52_04-pexels-quang-nguyen-vinh-5116377.jpg_-_Photos.png" style="object-position:center 50%"/><div class="page-header-icon page-header-icon-with-cover"><span class="icon">📘</span></div><h1 class="page-title">Introduction à Android</h1></header><div class="page-body"><p id="3eae33c0-6361-443b-b0f5-3e6dfb9be94b" class="">
</p><p id="bde48880-39cd-4cc0-aab7-9426c9bbd58c" class="">Mise en place</p><ul id="0bafb492-df55-4a3b-a381-741743a0849f" class="bulleted-list"><li style="list-style-type:disc">télécharger et installer Android Studio : <a href="https://developer.android.com/studio/">https://developer.android.com/studio/</a></li></ul><p id="5148bd23-1cf7-4bc4-a27e-926fc1f13b0f" class="">
</p><p id="794c1872-d33c-49a0-a056-76e5d0f0b780" class="">Systèmes d’exploitation : </p><p id="d49c4535-8158-4e70-96b7-3c0da7d19686" class="">Android est présent sous mobile, dans les montres connectées, les tablettes, les smart TV, les voitures (Android auto et CarPlay).</p><p id="2b31b701-55b1-4943-91c1-2dcfcfb875df" class="">
</p><p id="35541139-e050-4343-a4b2-63788299a2bb" class="">Architecture : </p><div id="bb781061-851f-4a36-b869-a48ba550ae8f" class="column-list"><div id="371c333f-d42c-406e-8095-70d24a775427" style="width:106.25%" class="column"><figure id="fad2cfdc-cbd2-4805-b39e-7e641ec5aada" class="image" style="text-align:left"><a href="media/16-01-introduction/Untitled.png"><img style="width:336px" src="media/16-01-introduction/Untitled.png"/></a><figcaption><a href="https://developer.android.com/guide/platform/">https://developer.android.com/guide/platform/</a></figcaption></figure></div><div id="d28844df-493c-4c88-83b5-9a1d53f9ec3b" style="width:93.75000000000001%" class="column"><p id="f464fc7f-baa2-4ba1-9171-62b1cdb7d3b4" class="">Le Kernel Linux tout en bas s’occupe de la gestion de l’énergie du téléphone, des drivers…</p><p id="7ab86a67-3b17-46e7-9b60-f6405069ff7c" class="">> La couche au-dessus <em>hardware abstraction layer</em> permet de ne pas avoir à spécifier le modèle de l’appareil.</p><p id="72491442-357f-4acb-80b8-cd4b950aaffa" class="">> Les couches suivantes sont <em>Android Runtime</em> (machine virtuelle) && les librairies natives (C/C++) </p><p id="b22d2a22-ce8a-47f6-b68f-d0016c23223e" class="">> La couche qui nous concerne est le <em>framework Java API</em> (interface de programmation, SDK pour <em>software development kit</em>) </p><p id="9b13c7d1-d23d-4d68-816b-1e0318757fa3" class="">> En haut du schéma se trouvent les applications (email, calendrier, caméra…).</p><p id="e5ffb2d3-f4db-49e4-a73e-8b1426500b16" class="">
</p></div></div><p id="067ff3d0-083f-42d2-a9ad-388e1cf0ec88" class="">
</p><p id="3af05ea4-cdd5-4c63-a482-6ee66f31732f" class=""><a href="https://developer.android.com/jetpack?hl=fr">JetPack</a> : </p><p id="4ab1db48-b44a-4289-91dd-b1fcda24f57b" class="">C’est une suite de bibliothèques qui permet aux développeurs de suivre les bonnes pratiques, de réduire le code récurrent et d'écrire du code qui fonctionne de manière cohérente sur toutes les versions d'Android et sur tous les appareils. </p><p id="7295d7be-f385-42a9-8a41-00ce11ef644b" class="">
</p><p id="8e42ac8d-0767-409e-8e3e-91e4a0b3bcc3" class="">Versions d’Android :</p><ul id="0037a52f-a69d-46f7-afc4-1b5c74701eed" class="bulleted-list"><li style="list-style-type:disc">passage à <a href="https://developer.android.com/jetpack/androidx?hl=fr">AndroidX</a> (amélioration majeure de la bibliothèque de support Android d'origine, qui n'est plus conservée)</li></ul><ul id="e01e4344-7690-4781-91aa-020e7c971bdd" class="bulleted-list"><li style="list-style-type:disc">version actuelle du SDK : 13 (14 en bêta)</li></ul><ul id="d19e89e5-6314-46ee-a036-a9d5e20b7c1b" class="bulleted-list"><li style="list-style-type:disc">associée à la version 33 de l’API (un entier qui incrémente à chaque version du SDK)</li></ul><ul id="3269d415-5f6b-4e9c-b01c-1e6604dad956" class="bulleted-list"><li style="list-style-type:disc">version minimum du sdk : généralement API 21-24 (”ancienneté”)</li></ul><blockquote id="3ba85a20-82cd-48c1-a88a-83bd404e6d07" class="">BP : on évite l’obsolescence programmée en essayant de garder une bonne ancienneté.</blockquote><p id="b2e6a0c9-5d76-4d90-bf6b-3d0ea8a8d6ae" class="">
</p><p id="c453573a-3e35-4629-9c42-421a926fcf99" class="">Compilation d’une application : <div class="indented"><p id="aa7ded35-8950-49df-a2ea-1d45f919dec5" class=""><strong><strong><strong><strong><strong><strong><strong>En APK (</strong></strong></strong></strong></strong></strong></strong><em><strong><strong><strong><strong><strong><strong><strong>Android Package Kit</strong></strong></strong></strong></strong></strong></strong></em><strong><strong><strong><strong><strong><strong><strong>) [désuet]</strong></strong></strong></strong></strong></strong></strong></p></div></p><p id="65ce8f2f-ab65-4115-83dd-d47677d83020" class="">D’une part, il y a le module application, avec le code source, les ressources et autres fichiers. D’autre part, il y a les dépendances, avec les codes sources et les ressources de toutes les librairies.</p><p id="019b2eb1-51a2-4c27-b479-e142756d0af3" class="">Les codes sources sont compilés et des fichiers DEX (<em>Dalvik Executable</em>) sont créés. Les ressources sont compilées à part.</p><p id="c34be1da-54f0-4015-b2cc-c3d09d574fbc" class="">A l’aide d’une clé (identifiant unique au projet), un exécutable .apk est créé : il peut être directement utilisé sur un mobile.</p><p id="7c165c06-3b3e-4af2-b280-e4ce90c1fbb3" class=""><div class="indented"><p id="0cc5b932-0cdc-4092-9374-3109fd4d2a50" class=""><strong>En AAB (Android App Bundle)</strong></p></div></p><p id="c2c1ab00-c572-4e94-ab36-7556d0bee23c" class="">Format recommandé par Google pour remplacer l’APK, il nécessite de passer par un store pour être installer sur un mobile (<a href="https://f-droid.org/fr/">F-Droid</a> est gratuit, par exemple).</p><figure class="block-color-blue_background callout" style="white-space:pre-wrap;display:flex" id="1adad0c2-3251-444a-8c3a-3f0cde1a8b20"><div style="font-size:1.5em"><span class="icon">📌</span></div><div style="width:100%">Pour aller plus loin :
<a href="https://www.phonandroid.com/tout-savoir-sur-format-aab-android-app-bundles-google-play-store.html">https://www.phonandroid.com/tout-savoir-sur-format-aab-android-app-bundles-google-play-store.html</a></div></figure><p id="c49a3abf-ce9d-494f-8446-9e3ec3fa5949" class="">
</p><figure class="block-color-blue callout" style="white-space:pre-wrap;display:flex" id="e8d1a959-aad7-415c-9aa3-d4a9ec4b92d8"><div style="font-size:1.5em"><span class="icon">⚙</span></div><div style="width:100%">Outils :
Kotlin
Java
Android Studio (issu du moteur IntelliJ)
Gradle (gestionnaire de dépendances, qui vient de Maven)</div></figure><figure class="block-color-yellow callout" style="white-space:pre-wrap;display:flex" id="eb37d20f-6e1a-45a4-9b5d-e059e6c2b292"><div style="font-size:1.5em"><span class="icon">⚠️</span></div><div style="width:100%">Ce cours est en Kotlin mais il est interopérable avec Java puisque Kotlin est issu de Java, en plus simple et moins verbeux.</div></figure><p id="4fe10a50-d1d1-40da-bbc9-8721d92d8499" class="">
</p><h2 id="ab8ad038-94d0-4584-8f61-a2c195b7ae29" class="">Hello World</h2><hr id="b058184b-c9fc-451b-9cab-f38e483e9bc4"/><blockquote id="1fc0ec9c-9ad2-4e6f-b45d-ff1a4f9d045b" class="">Projet GitHub : <a href="https://github.com/LSarribouette/MumblingInKotlin">https://github.com/LSarribouette/MumblingInKotlin</a></blockquote><p id="64d58ca3-33c3-4a06-8339-38cd505216ad" class="">
</p><p id="5af42d2b-bdcc-43c7-8401-1246dbf7483a" class="">Dans Android Studio,</p><ul id="444f24a5-55bb-4055-bf10-91a21b92909b" class="bulleted-list"><li style="list-style-type:disc">créer un nouveau projet > choisir le template <em><em><em><em><em><em><em><em><em><em><em><em><em><em>empty activity</em></em></em></em></em></em></em></em></em></em></em></em></em></em> :<ul id="1da86757-fc6c-4eef-91e8-cc78f32ba385" class="bulleted-list"><li style="list-style-type:circle">Name : MumblingInKotlin</li></ul><ul id="cbed50d8-9087-4c90-ad3a-9244f0bbcc96" class="bulleted-list"><li style="list-style-type:circle">Package name : com.lsarribouette.mumblinginkotlin</li></ul><ul id="b4bcca20-f19e-48ba-a336-8a8bcd90b41c" class="bulleted-list"><li style="list-style-type:circle">Language : Kotlin</li></ul><ul id="1e72b267-5826-4d90-8474-493a303f1f50" class="bulleted-list"><li style="list-style-type:circle">Minimum SDK : API 24: Android 7.0 (Nougat)<p id="eed7b124-1d94-4e35-9e94-1b8bf73bb42b" class="">(la plus ancienne possible, ici API 24 à cause des SVG)</p><figure class="block-color-brown callout" style="white-space:pre-wrap;display:flex" id="0f57f44f-436a-4013-818c-4349dcd62880"><div style="font-size:1.5em"><span class="icon">ℹ️</span></div><div style="width:100%">Le format SVG décrit les images non pas avec des pixels mais avec des formules mathématiques.</div></figure><figure class="block-color-brown callout" style="white-space:pre-wrap;display:flex" id="6147a38a-aaf1-4851-a968-2210a8a388e5"><div style="font-size:1.5em"><span class="icon">ℹ️</span></div><div style="width:100%">Selon le minimum SDK sélectionné, le pourcentage d’appareils actifs compatibles est donnée. Un appareil est considéré actif s’il se connecte au moins une fois par mois aux services Google.</div></figure></li></ul></li></ul><figure class="block-color-brown callout" style="white-space:pre-wrap;display:flex" id="37820cfe-21df-48ac-b120-eda7c2b8a3d3"><div style="font-size:1.5em"><span class="icon">ℹ️</span></div><div style="width:100%">A l’ouverture du projet, il y a des téléchargements comme Gradle et le compilateur.</div></figure><ul id="5aae32df-eb10-4d0a-b3cf-f1047f3010bb" class="bulleted-list"><li style="list-style-type:disc">ajouter un appareil, ici virtuel, depuis le <em>Device Manager</em> (téléphone avec un petit Android) <p id="bb15d62a-896e-4d24-a025-834892573b14" class="">> Virtual > create device </p><p id="50f76127-4167-4d88-a2f3-7c222aed7db3" class="">> Select Hardware : Pixel 6 Pro </p><p id="041ad077-aa93-4f6f-be58-e4f026031435" class="">> System Image : Tiramisu (33) (<em><em><em><em><em><em><em><em><em><em><em><em><em><em><em><em><em><em><em><em><em><em>télécharger au besoin</em></em></em></em></em></em></em></em></em></em></em></em></em></em></em></em></em></em></em></em></em></em>) </p><p id="86d469ed-566f-4964-a0ca-a6dcde57b131" class="">> Finish</p></li></ul><figure class="block-color-brown callout" style="white-space:pre-wrap;display:flex" id="f48cd685-d560-47f9-b5d5-46e872c03464"><div style="font-size:1.5em"><span class="icon">ℹ️</span></div><div style="width:100%">Un <em>device</em> n’est pas propre à un projet, donc on ne le refait pas à chaque fois.
Par contre, on peut avoir plusieurs <em>devices</em> pour tester différentes tailles d’écran.</div></figure><ul id="adf36cfe-d7eb-4fb9-9ab7-4ccfbcfe062c" class="bulleted-list"><li style="list-style-type:disc">lancer l’application : flèche verte</li></ul><p id="73325efb-f3a3-47c8-9cca-8bb0addd2f6d" class="block-color-teal_background">On voit l’application qui s’ouvre sur le mobile et affiche “Hello World”.</p><p id="389ff5f9-2a6e-405e-a4e7-4919023878a1" class="">
</p></div></article></body></html>