Added FlowLayoutSnippets.kt with examples for Flow Layouts. (#104)

* Added FlowLayoutSnippets.kt with examples for Flow Layouts. * Fix tag * Apply Spotless * Moved example layouts further up in file * Upgrade FlowLayouts to latest version. * Apply Spotless * Move some snippets into CommonLayoutExamples.kt Upgrade gradle config. * Apply Spotless * More Flow snippets * Apply Spotless * remove duplicate blue color * remove duplicate blue color * Added fractional sizing example * Change to beta version for flow layout changes * Apply Spotless * Disable jetifier and enable configuration cache. --------- Co-authored-by: riggaroo <[email protected]>
android · Jun 26, 2023 · 7322f58 · 7322f58
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diff --git a/compose/snippets/src/main/java/com/example/compose/snippets/layouts/CommonLayoutExamples.kt b/compose/snippets/src/main/java/com/example/compose/snippets/layouts/CommonLayoutExamples.kt
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+/*
+ * Copyright 2023 The Android Open Source Project
+ *
+ * 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
+ *
+ *     https://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.
+ */
+
+package com.example.compose.snippets.layouts
+
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.ExperimentalLayoutApi
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.aspectRatio
+import androidx.compose.foundation.layout.fillMaxHeight
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.width
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import com.example.compose.snippets.util.MaterialColors
+import kotlin.random.Random
+
+/*
+* Copyright 2022 The Android Open Source Project
+*
+* 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.
+*/
+@OptIn(ExperimentalLayoutApi::class)
+@Composable
+@Preview
+fun Layout_Graph_Vertical() {
+    val paddingModifier = Modifier.padding(4.dp)
+    // [START android_compose_layout_vertical_graph]
+    Column(
+        modifier = paddingModifier.fillMaxWidth(),
+        verticalArrangement = Arrangement.spacedBy(4.dp)
+    ) {
+        val itemModifier = Modifier
+            .padding(4.dp)
+            .height(48.dp)
+            .clip(RoundedCornerShape(8.dp))
+            .background(MaterialColors.Blue200)
+        repeat(7) {
+            val randomPercentage = Random.nextFloat()
+            Spacer(
+                modifier = itemModifier
+                    .fillMaxWidth(randomPercentage)
+                    .align(Alignment.End)
+            )
+        }
+    }
+    // [END android_compose_layout_vertical_graph]
+}
+
+@OptIn(ExperimentalLayoutApi::class)
+@Composable
+@Preview
+fun Layout_Graph_Horizontal() {
+    val paddingModifier = Modifier.padding(4.dp)
+    // [START android_compose_layout_horizontal_graph]
+    Row(
+        modifier = paddingModifier.height(200.dp),
+        horizontalArrangement = Arrangement.spacedBy(4.dp)
+    ) {
+        val itemModifier = Modifier
+            .padding(4.dp)
+            .weight(1f)
+            .clip(RoundedCornerShape(8.dp))
+            .background(MaterialColors.Blue200)
+        repeat(7) { index ->
+            val randomPercentage = Random.nextFloat()
+            Spacer(
+                modifier = itemModifier
+                    .align(Alignment.Bottom)
+                    .fillMaxHeight(randomPercentage)
+            )
+        }
+    }
+    // [END android_compose_layout_horizontal_graph]
+}
+
+@Composable
+@Preview
+fun Layout_StretchAll() {
+    // [START android_compose_layout_stretch_all]
+    Row(
+        modifier = Modifier.padding(4.dp),
+        horizontalArrangement = Arrangement.spacedBy(4.dp)
+    ) {
+        val itemModifier = Modifier
+            .aspectRatio(1f)
+            .weight(1f)
+            .clip(RoundedCornerShape(8.dp))
+
+        Spacer(modifier = itemModifier.background(MaterialColors.Green200))
+        Spacer(modifier = itemModifier.background(MaterialColors.Blue200))
+        Spacer(modifier = itemModifier.background(MaterialColors.Pink200))
+        Spacer(modifier = itemModifier.background(MaterialColors.Purple200))
+    }
+    // [END android_compose_layout_stretch_all]
+}
+
+@Composable
+@Preview
+fun Layout_StretchMiddleItem() {
+    // [START android_compose_layout_stretch_middle]
+    Row(
+        modifier = Modifier
+            .padding(4.dp)
+            .height(200.dp),
+        horizontalArrangement = Arrangement.spacedBy(4.dp)
+    ) {
+        val itemModifier = Modifier
+            .fillMaxHeight()
+            .width(48.dp)
+            .clip(RoundedCornerShape(8.dp))
+
+        Spacer(modifier = itemModifier.background(MaterialColors.Green200))
+        val middleStretchModifier = Modifier
+            .fillMaxHeight()
+            .weight(1f)
+            .clip(RoundedCornerShape(8.dp))
+        Spacer(modifier = middleStretchModifier.background(MaterialColors.Blue200))
+        Spacer(modifier = itemModifier.background(MaterialColors.Pink200))
+    }
+    // [END android_compose_layout_stretch_middle]
+}