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‎misc/src/main/java/com/example/snippets/ActivityEmbeddingKotlinSnippets.kt‎

Lines changed: 76 additions & 69 deletions
Original file line numberDiff line numberDiff line change
@@ -1,3 +1,19 @@
1+
/*
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* Copyright 2025 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
11+
* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
14+
* limitations under the License.
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*/
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117
package com.example.snippets
218

319
import android.app.Activity
@@ -36,11 +52,11 @@ import kotlinx.coroutines.launch
3652

3753
class ActivityEmbeddingKotlinSnippets {
3854

39-
class SnippetActivity: Activity() {
55+
class SnippetActivity : Activity() {
4056

4157
private val context = this
4258

43-
@RequiresApi(api=VERSION_CODES.N)
59+
@RequiresApi(api = VERSION_CODES.N)
4460
override fun onCreate(savedInstanceState: Bundle?) {
4561
super.onCreate(savedInstanceState)
4662

@@ -81,22 +97,22 @@ class ActivityEmbeddingKotlinSnippets {
8197
val builder = SplitAttributes.Builder()
8298
builder.setSplitType(SPLIT_TYPE_HINGE)
8399
return@setSplitAttributesCalculator if (feature?.isSeparating == true) {
84-
// Horizontal split for tabletop posture.
85-
builder
86-
.setSplitType(SPLIT_TYPE_HINGE)
87-
.setLayoutDirection(
88-
if (feature.orientation == FoldingFeature.Orientation.HORIZONTAL) {
89-
SplitAttributes.LayoutDirection.BOTTOM_TO_TOP
90-
} else {
91-
SplitAttributes.LayoutDirection.LOCALE
92-
})
93-
.build()
94-
}
95-
else if (parentConfiguration.screenWidthDp >= 840) {
96-
// Side-by-side dual-pane layout for wide displays.
97-
builder
98-
.setLayoutDirection(SplitAttributes.LayoutDirection.LOCALE)
99-
.build()
100+
// Horizontal split for tabletop posture.
101+
builder
102+
.setSplitType(SPLIT_TYPE_HINGE)
103+
.setLayoutDirection(
104+
if (feature.orientation == FoldingFeature.Orientation.HORIZONTAL) {
105+
SplitAttributes.LayoutDirection.BOTTOM_TO_TOP
106+
} else {
107+
SplitAttributes.LayoutDirection.LOCALE
108+
}
109+
)
110+
.build()
111+
} else if (parentConfiguration.screenWidthDp >= 840) {
112+
// Side-by-side dual-pane layout for wide displays.
113+
builder
114+
.setLayoutDirection(SplitAttributes.LayoutDirection.LOCALE)
115+
.build()
100116
} else {
101117
// No split for tall displays.
102118
builder
@@ -109,9 +125,9 @@ class ActivityEmbeddingKotlinSnippets {
109125

110126
// [START android_activity_embedding_splitPairFilter_kotlin]
111127
val splitPairFilter = SplitPairFilter(
112-
ComponentName(this, ListActivity::class.java),
113-
ComponentName(this, DetailActivity::class.java),
114-
null
128+
ComponentName(this, ListActivity::class.java),
129+
ComponentName(this, DetailActivity::class.java),
130+
null
115131
)
116132
// [END android_activity_embedding_splitPairFilter_kotlin]
117133

@@ -139,8 +155,8 @@ class ActivityEmbeddingKotlinSnippets {
139155
// [END android_activity_embedding_splitPairRule_kotlin]
140156

141157
// [START android_activity_embedding_ruleController_kotlin]
142-
val ruleController = RuleController.getInstance(this)
143-
ruleController.addRule(splitPairRule)
158+
val ruleController = RuleController.getInstance(this)
159+
ruleController.addRule(splitPairRule)
144160
// [END android_activity_embedding_ruleController_kotlin]
145161

146162
// [START android_activity_embedding_placeholderActivityFilter_kotlin]
@@ -156,15 +172,15 @@ class ActivityEmbeddingKotlinSnippets {
156172

157173
// [START android_activity_embedding_splitPlaceholderRule_kotlin]
158174
val splitPlaceholderRule = SplitPlaceholderRule.Builder(
159-
placeholderActivityFilterSet,
160-
Intent(context, PlaceholderActivity::class.java)
161-
).setDefaultSplitAttributes(splitAttributes)
162-
.setMinWidthDp(840)
163-
.setMinSmallestWidthDp(600)
164-
.setMaxAspectRatioInPortrait(EmbeddingAspectRatio.ratio(1.5f))
165-
.setFinishPrimaryWithPlaceholder(SplitRule.FinishBehavior.ALWAYS)
166-
.setSticky(false)
167-
.build()
175+
placeholderActivityFilterSet,
176+
Intent(context, PlaceholderActivity::class.java)
177+
).setDefaultSplitAttributes(splitAttributes)
178+
.setMinWidthDp(840)
179+
.setMinSmallestWidthDp(600)
180+
.setMaxAspectRatioInPortrait(EmbeddingAspectRatio.ratio(1.5f))
181+
.setFinishPrimaryWithPlaceholder(SplitRule.FinishBehavior.ALWAYS)
182+
.setSticky(false)
183+
.build()
168184
// [END android_activity_embedding_splitPlaceholderRule_kotlin]
169185

170186
// [START android_activity_embedding_addRuleSplitPlaceholderRule_kotlin]
@@ -173,8 +189,8 @@ class ActivityEmbeddingKotlinSnippets {
173189

174190
// [START android_activity_embedding_expandedActivityFilter_kotlin]
175191
val expandedActivityFilter = ActivityFilter(
176-
ComponentName(this, ExpandedActivity::class.java),
177-
null
192+
ComponentName(this, ExpandedActivity::class.java),
193+
null
178194
)
179195
// [END android_activity_embedding_expandedActivityFilter_kotlin]
180196

@@ -199,35 +215,32 @@ class ActivityEmbeddingKotlinSnippets {
199215

200216
if (WindowSdkExtensions.getInstance().extensionVersion >= 6) {
201217
_splitAttributesBuilder.setDividerAttributes(
202-
DividerAttributes.DraggableDividerAttributes.Builder()
203-
.setColor(getColor(R.color.divider_color))
204-
.setWidthDp(4)
205-
.setDragRange(DividerAttributes.DragRange.DRAG_RANGE_SYSTEM_DEFAULT)
206-
.build()
218+
DividerAttributes.DraggableDividerAttributes.Builder()
219+
.setColor(getColor(R.color.divider_color))
220+
.setWidthDp(4)
221+
.setDragRange(DividerAttributes.DragRange.DRAG_RANGE_SYSTEM_DEFAULT)
222+
.build()
207223
)
208224
}
209225
val _splitAttributes: SplitAttributes = _splitAttributesBuilder.build()
210226
// [END android_activity_embedding_splitAttributesBuilder_kotlin]
211227

212-
// [START android_activity_embedding_isActivityEmbedded_kotlin]
213-
fun isActivityEmbedded(activity: Activity): Boolean {
214-
return ActivityEmbeddingController.getInstance(this).isActivityEmbedded(activity)
215-
}
216-
// [END android_activity_embedding_isActivityEmbedded_kotlin]
217-
228+
// [START android_activity_embedding_isActivityEmbedded_kotlin]
229+
fun isActivityEmbedded(activity: Activity): Boolean {
230+
return ActivityEmbeddingController.getInstance(this).isActivityEmbedded(activity)
231+
}
232+
// [END android_activity_embedding_isActivityEmbedded_kotlin]
218233
}
219234
}
220235

221-
222236
// [START android_activity_embedding_DetailActivity_class_kotlin]
223-
class DetailActivity: AppCompatActivity() {
237+
class DetailActivity : AppCompatActivity() {
224238
fun onOpenSubdetail() {
225-
startActivity(Intent(this, SubdetailActivity::class.java))
239+
startActivity(Intent(this, SubdetailActivity::class.java))
226240
}
227241
}
228242
// [END android_activity_embedding_DetailActivity_class_kotlin]
229243

230-
231244
// [START android_activity_embedding_SplitInitializer_class_kotlin]
232245
class SplitInitializer : Initializer<RuleController> {
233246

@@ -243,31 +256,28 @@ class ActivityEmbeddingKotlinSnippets {
243256
}
244257
// [END android_activity_embedding_SplitInitializer_class_kotlin]
245258

246-
247259
/**
248260
* Function used by snippet.
249261
*/
250262
fun classForItem(item: Int): Class<*> { return Class::class.java }
251263

252264
// [START android_activity_embedding_MenuActivity_class_kotlin]
253-
inner class MenuActivity: AppCompatActivity() {
265+
inner class MenuActivity : AppCompatActivity() {
254266
fun onMenuItemSelected(selectedMenuItem: Int) {
255267
startActivity(Intent(this, classForItem(selectedMenuItem)))
256268
}
257269
}
258270
// [END android_activity_embedding_MenuActivity_class_kotlin]
259271

260-
261272
// [START android_activity_embedding_B_class_kotlin]
262-
class B: AppCompatActivity() {
273+
class B : AppCompatActivity() {
263274
fun onOpenC() {
264275
startActivity(Intent(this, C::class.java))
265276
}
266277
}
267278
// [END android_activity_embedding_B_class_kotlin]
268279

269-
270-
class SnippetActivity2: Activity() {
280+
class SnippetActivity2 : Activity() {
271281

272282
private val filterSet = HashSet<SplitPairFilter>()
273283

@@ -281,8 +291,7 @@ class ActivityEmbeddingKotlinSnippets {
281291
// [END android_activity_embedding_onCreate_RuleController_kotlin]
282292
}
283293

284-
285-
class SplitDeviceActivity: AppCompatActivity() {
294+
class SplitDeviceActivity : AppCompatActivity() {
286295

287296
@OptIn(ExperimentalWindowApi::class)
288297
override fun onCreate(savedInstanceState: Bundle?) {
@@ -303,9 +312,8 @@ class ActivityEmbeddingKotlinSnippets {
303312
}
304313
}
305314

306-
307-
class SnippetActivity3: AppCompatActivity() {
308-
override fun onCreate(savedInstanceState: Bundle?){
315+
class SnippetActivity3 : AppCompatActivity() {
316+
override fun onCreate(savedInstanceState: Bundle?) {
309317
super.onCreate(savedInstanceState)
310318
setContentView(R.layout.activity_main)
311319
// [START android_activity_embedding_pinButton_kotlin]
@@ -327,19 +335,18 @@ class ActivityEmbeddingKotlinSnippets {
327335

328336
// [START android_activity_embedding_getSplitSupportStatus_kotlin]
329337
if (SplitController.getInstance(this).splitSupportStatus ==
330-
SplitController.SplitSupportStatus.SPLIT_AVAILABLE) {
331-
// Device supports split activity features.
338+
SplitController.SplitSupportStatus.SPLIT_AVAILABLE
339+
) {
340+
// Device supports split activity features.
332341
}
333342
// [END android_activity_embedding_getSplitSupportStatus_kotlin]
334343
}
335344
}
336345

337-
338346
// Classes used by snippets.
339-
class ListActivity {}
340-
class SubdetailActivity {}
341-
class PlaceholderActivity {}
342-
class ExpandedActivity {}
343-
class C {}
344-
347+
class ListActivity
348+
class SubdetailActivity
349+
class PlaceholderActivity
350+
class ExpandedActivity
351+
class C
345352
}

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