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

Lines changed: 75 additions & 73 deletions
Original file line numberDiff line numberDiff line change
@@ -1,16 +1,30 @@
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/*
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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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*
8+
* 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,
12+
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13+
* See the License for the specific language governing permissions and
14+
* limitations under the License.
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*/
16+
117
package com.example.snippets
218

319
import android.app.Activity
420
import android.content.ComponentName
521
import android.content.Context
622
import android.content.Intent
723
import android.os.Bundle
8-
import android.os.PersistableBundle
924
import android.view.View
1025
import android.widget.Button
1126
import androidx.appcompat.app.AppCompatActivity
1227
import androidx.lifecycle.Lifecycle
13-
import androidx.lifecycle.LifecycleOwner
1428
import androidx.lifecycle.lifecycleScope
1529
import androidx.lifecycle.repeatOnLifecycle
1630
import androidx.startup.Initializer
@@ -26,20 +40,17 @@ import androidx.window.embedding.SplitAttributes
2640
import androidx.window.embedding.SplitAttributes.SplitType.Companion.SPLIT_TYPE_EXPAND
2741
import androidx.window.embedding.SplitAttributes.SplitType.Companion.SPLIT_TYPE_HINGE
2842
import androidx.window.embedding.SplitController
29-
import androidx.window.embedding.SplitInfo
3043
import androidx.window.embedding.SplitPairFilter
3144
import androidx.window.embedding.SplitPairRule
3245
import androidx.window.embedding.SplitPinRule
3346
import androidx.window.embedding.SplitPlaceholderRule
3447
import androidx.window.embedding.SplitRule
35-
import androidx.window.java.embedding.SplitControllerCallbackAdapter
3648
import androidx.window.layout.FoldingFeature
37-
import java.util.concurrent.Executor
3849
import kotlinx.coroutines.launch
3950

4051
class ActivityEmbeddingKotlinSnippets {
4152

42-
class SnippetActivity: Activity() {
53+
class SnippetActivity : Activity() {
4354

4455
private val context = this
4556

@@ -83,22 +94,22 @@ class ActivityEmbeddingKotlinSnippets {
8394
val builder = SplitAttributes.Builder()
8495
builder.setSplitType(SPLIT_TYPE_HINGE)
8596
return@setSplitAttributesCalculator if (feature?.isSeparating == true) {
86-
// Horizontal split for tabletop posture.
87-
builder
88-
.setSplitType(SPLIT_TYPE_HINGE)
89-
.setLayoutDirection(
90-
if (feature.orientation == FoldingFeature.Orientation.HORIZONTAL) {
91-
SplitAttributes.LayoutDirection.BOTTOM_TO_TOP
92-
} else {
93-
SplitAttributes.LayoutDirection.LOCALE
94-
})
95-
.build()
96-
}
97-
else if (parentConfiguration.screenWidthDp >= 840) {
98-
// Side-by-side dual-pane layout for wide displays.
99-
builder
100-
.setLayoutDirection(SplitAttributes.LayoutDirection.LOCALE)
101-
.build()
97+
// Horizontal split for tabletop posture.
98+
builder
99+
.setSplitType(SPLIT_TYPE_HINGE)
100+
.setLayoutDirection(
101+
if (feature.orientation == FoldingFeature.Orientation.HORIZONTAL) {
102+
SplitAttributes.LayoutDirection.BOTTOM_TO_TOP
103+
} else {
104+
SplitAttributes.LayoutDirection.LOCALE
105+
}
106+
)
107+
.build()
108+
} else if (parentConfiguration.screenWidthDp >= 840) {
109+
// Side-by-side dual-pane layout for wide displays.
110+
builder
111+
.setLayoutDirection(SplitAttributes.LayoutDirection.LOCALE)
112+
.build()
102113
} else {
103114
// No split for tall displays.
104115
builder
@@ -111,9 +122,9 @@ class ActivityEmbeddingKotlinSnippets {
111122

112123
// [START activity_embedding_splitPairFilter_kotlin]
113124
val splitPairFilter = SplitPairFilter(
114-
ComponentName(this, ListActivity::class.java),
115-
ComponentName(this, DetailActivity::class.java),
116-
null
125+
ComponentName(this, ListActivity::class.java),
126+
ComponentName(this, DetailActivity::class.java),
127+
null
117128
)
118129
// [END activity_embedding_splitPairFilter_kotlin]
119130

@@ -141,8 +152,8 @@ class ActivityEmbeddingKotlinSnippets {
141152
// [END activity_embedding_splitPairRule_kotlin]
142153

143154
// [START activity_embedding_ruleController_kotlin]
144-
val ruleController = RuleController.getInstance(this)
145-
ruleController.addRule(splitPairRule)
155+
val ruleController = RuleController.getInstance(this)
156+
ruleController.addRule(splitPairRule)
146157
// [END activity_embedding_ruleController_kotlin]
147158

148159
// [START activity_embedding_placeholderActivityFilter_kotlin]
@@ -158,15 +169,15 @@ class ActivityEmbeddingKotlinSnippets {
158169

159170
// [START activity_embedding_splitPlaceholderRule_kotlin]
160171
val splitPlaceholderRule = SplitPlaceholderRule.Builder(
161-
placeholderActivityFilterSet,
162-
Intent(context, PlaceholderActivity::class.java)
163-
).setDefaultSplitAttributes(splitAttributes)
164-
.setMinWidthDp(840)
165-
.setMinSmallestWidthDp(600)
166-
.setMaxAspectRatioInPortrait(EmbeddingAspectRatio.ratio(1.5f))
167-
.setFinishPrimaryWithPlaceholder(SplitRule.FinishBehavior.ALWAYS)
168-
.setSticky(false)
169-
.build()
172+
placeholderActivityFilterSet,
173+
Intent(context, PlaceholderActivity::class.java)
174+
).setDefaultSplitAttributes(splitAttributes)
175+
.setMinWidthDp(840)
176+
.setMinSmallestWidthDp(600)
177+
.setMaxAspectRatioInPortrait(EmbeddingAspectRatio.ratio(1.5f))
178+
.setFinishPrimaryWithPlaceholder(SplitRule.FinishBehavior.ALWAYS)
179+
.setSticky(false)
180+
.build()
170181
// [END activity_embedding_splitPlaceholderRule_kotlin]
171182

172183
// [START activity_embedding_addRuleSplitPlaceholderRule_kotlin]
@@ -175,8 +186,8 @@ class ActivityEmbeddingKotlinSnippets {
175186

176187
// [START activity_embedding_expandedActivityFilter_kotlin]
177188
val expandedActivityFilter = ActivityFilter(
178-
ComponentName(this, ExpandedActivity::class.java),
179-
null
189+
ComponentName(this, ExpandedActivity::class.java),
190+
null
180191
)
181192
// [END activity_embedding_expandedActivityFilter_kotlin]
182193

@@ -201,35 +212,32 @@ class ActivityEmbeddingKotlinSnippets {
201212

202213
if (WindowSdkExtensions.getInstance().extensionVersion >= 6) {
203214
_splitAttributesBuilder.setDividerAttributes(
204-
DividerAttributes.DraggableDividerAttributes.Builder()
205-
.setColor(getColor(R.color.divider_color))
206-
.setWidthDp(4)
207-
.setDragRange(DividerAttributes.DragRange.DRAG_RANGE_SYSTEM_DEFAULT)
208-
.build()
215+
DividerAttributes.DraggableDividerAttributes.Builder()
216+
.setColor(getColor(R.color.divider_color))
217+
.setWidthDp(4)
218+
.setDragRange(DividerAttributes.DragRange.DRAG_RANGE_SYSTEM_DEFAULT)
219+
.build()
209220
)
210221
}
211222
val _splitAttributes: SplitAttributes = _splitAttributesBuilder.build()
212223
// [END activity_embedding_splitAttributesBuilder_kotlin]
213224

214-
// [START activity_embedding_isActivityEmbedded_kotlin]
215-
fun isActivityEmbedded(activity: Activity): Boolean {
216-
return ActivityEmbeddingController.getInstance(this).isActivityEmbedded(activity)
217-
}
218-
// [END activity_embedding_isActivityEmbedded_kotlin]
219-
225+
// [START activity_embedding_isActivityEmbedded_kotlin]
226+
fun isActivityEmbedded(activity: Activity): Boolean {
227+
return ActivityEmbeddingController.getInstance(this).isActivityEmbedded(activity)
228+
}
229+
// [END activity_embedding_isActivityEmbedded_kotlin]
220230
}
221231
}
222232

223-
224233
// [START activity_embedding_DetailActivity_class_kotlin]
225-
class DetailActivity: AppCompatActivity() {
234+
class DetailActivity : AppCompatActivity() {
226235
fun onOpenSubdetail() {
227-
startActivity(Intent(this, SubdetailActivity::class.java))
236+
startActivity(Intent(this, SubdetailActivity::class.java))
228237
}
229238
}
230239
// [END activity_embedding_DetailActivity_class_kotlin]
231240

232-
233241
// [START activity_embedding_SplitInitializer_class_kotlin]
234242
class SplitInitializer : Initializer<RuleController> {
235243

@@ -245,31 +253,28 @@ class ActivityEmbeddingKotlinSnippets {
245253
}
246254
// [END activity_embedding_SplitInitializer_class_kotlin]
247255

248-
249256
/**
250257
* Function used by snippet.
251258
*/
252259
fun classForItem(item: Int): Class<*> { return Class::class.java }
253260

254261
// [START activity_embedding_MenuActivity_class_kotlin]
255-
inner class MenuActivity: AppCompatActivity() {
262+
inner class MenuActivity : AppCompatActivity() {
256263
fun onMenuItemSelected(selectedMenuItem: Int) {
257264
startActivity(Intent(this, classForItem(selectedMenuItem)))
258265
}
259266
}
260267
// [END activity_embedding_MenuActivity_class_kotlin]
261268

262-
263269
// [START activity_embedding_B_class_kotlin]
264-
class B: AppCompatActivity() {
270+
class B : AppCompatActivity() {
265271
fun onOpenC() {
266272
startActivity(Intent(this, C::class.java))
267273
}
268274
}
269275
// [END activity_embedding_B_class_kotlin]
270276

271-
272-
class SnippetActivity2: Activity() {
277+
class SnippetActivity2 : Activity() {
273278

274279
private val filterSet = HashSet<SplitPairFilter>()
275280

@@ -283,8 +288,7 @@ class ActivityEmbeddingKotlinSnippets {
283288
// [END activity_embedding_onCreate_RuleController_kotlin]
284289
}
285290

286-
287-
class SplitDeviceActivity: AppCompatActivity() {
291+
class SplitDeviceActivity : AppCompatActivity() {
288292

289293
@OptIn(ExperimentalWindowApi::class)
290294
override fun onCreate(savedInstanceState: Bundle?) {
@@ -305,9 +309,8 @@ class ActivityEmbeddingKotlinSnippets {
305309
}
306310
}
307311

308-
309-
class SnippetActivity3: AppCompatActivity() {
310-
override fun onCreate(savedInstanceState: Bundle?){
312+
class SnippetActivity3 : AppCompatActivity() {
313+
override fun onCreate(savedInstanceState: Bundle?) {
311314
super.onCreate(savedInstanceState)
312315
setContentView(R.layout.activity_main)
313316
// [START activity_embedding_pinButton_kotlin]
@@ -329,21 +332,20 @@ class ActivityEmbeddingKotlinSnippets {
329332

330333
// [START activity_embedding_getSplitSupportStatus_kotlin]
331334
if (SplitController.getInstance(this).splitSupportStatus ==
332-
SplitController.SplitSupportStatus.SPLIT_AVAILABLE) {
333-
// Device supports split activity features.
335+
SplitController.SplitSupportStatus.SPLIT_AVAILABLE
336+
) {
337+
// Device supports split activity features.
334338
}
335339
// [END activity_embedding_getSplitSupportStatus_kotlin]
336340
}
337341
}
338342

339-
340343
/**
341344
* Classes used by snippets.
342345
*/
343-
class ListActivity {}
344-
class SubdetailActivity {}
345-
class PlaceholderActivity {}
346-
class ExpandedActivity {}
347-
class C {}
348-
346+
class ListActivity
347+
class SubdetailActivity
348+
class PlaceholderActivity
349+
class ExpandedActivity
350+
class C
349351
}

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