Import Android SDK Platform P [4386628]

/google/data/ro/projects/android/fetch_artifact \
    --bid 4386628 \
    --target sdk_phone_armv7-win_sdk \
    sdk-repo-linux-sources-4386628.zip

AndroidVersion.ApiLevel has been modified to appear as 28

Change-Id: I9b8400ac92116cae4f033d173f7a5682b26ccba9

1 files changed, 151 insertions, 0 deletions

diff --git a/android/text/TextViewSetTextMeasurePerfTest.java b/android/text/TextViewSetTextMeasurePerfTest.java
new file mode 100644
index 00000000..a2bf33e1
--- /dev/null
+++ b/android/text/TextViewSetTextMeasurePerfTest.java
@@ -0,0 +1,151 @@
+/*
+ * Copyright (C) 2017 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.
+ */
+package android.text;
+
+import static android.view.View.MeasureSpec.AT_MOST;
+import static android.view.View.MeasureSpec.UNSPECIFIED;
+
+import android.graphics.Canvas;
+import android.perftests.utils.BenchmarkState;
+import android.perftests.utils.PerfStatusReporter;
+import android.support.test.InstrumentationRegistry;
+import android.support.test.filters.LargeTest;
+import android.text.NonEditableTextGenerator.TextType;
+import android.view.DisplayListCanvas;
+import android.view.RenderNode;
+import android.widget.TextView;
+
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.Parameterized;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+import java.util.Locale;
+import java.util.Random;
+
+/**
+ * Performance test for multi line, single style {@link StaticLayout} creation/draw.
+ */
+@LargeTest
+@RunWith(Parameterized.class)
+public class TextViewSetTextMeasurePerfTest {
+
+    private static final boolean[] BOOLEANS = new boolean[]{false, true};
+
+    @Rule
+    public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+
+    @Parameterized.Parameters(name = "cached={3},{1} chars,{0}")
+    public static Collection cases() {
+        final List<Object[]> params = new ArrayList<>();
+        for (int length : new int[]{128}) {
+            for (boolean cached : BOOLEANS) {
+                for (TextType textType : new TextType[]{TextType.STRING,
+                        TextType.SPANNABLE_BUILDER}) {
+                    params.add(new Object[]{textType.name(), length, textType, cached});
+                }
+            }
+        }
+        return params;
+    }
+
+    private final int mLineWidth;
+    private final int mLength;
+    private final TextType mTextType;
+    private final boolean mCached;
+    private final TextPaint mTextPaint;
+
+    public TextViewSetTextMeasurePerfTest(String label, int length, TextType textType,
+            boolean cached) {
+        mLength = length;
+        mTextType = textType;
+        mCached = cached;
+        mTextPaint = new TextPaint();
+        mTextPaint.setTextSize(10);
+        mLineWidth = Integer.MAX_VALUE;
+    }
+
+    /**
+     * Measures the time to setText and measure for a {@link TextView}.
+     */
+    @Test
+    public void timeCreate() throws Exception {
+        final BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+
+        state.pauseTiming();
+        Canvas.freeTextLayoutCaches();
+        final CharSequence text = createRandomText(mLength);
+        final TextView textView = new TextView(InstrumentationRegistry.getTargetContext());
+        textView.setText(text);
+        state.resumeTiming();
+
+        while (state.keepRunning()) {
+            state.pauseTiming();
+            textView.setTextLocale(Locale.UK);
+            textView.setTextLocale(Locale.US);
+            if (!mCached) Canvas.freeTextLayoutCaches();
+            state.resumeTiming();
+
+            textView.setText(text);
+            textView.measure(AT_MOST | mLineWidth, UNSPECIFIED);
+        }
+    }
+
+    /**
+     * Measures the time to draw for a {@link TextView}.
+     */
+    @Test
+    public void timeDraw() throws Exception {
+        final BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+
+        state.pauseTiming();
+        Canvas.freeTextLayoutCaches();
+        final RenderNode node = RenderNode.create("benchmark", null);
+        final CharSequence text = createRandomText(mLength);
+        final TextView textView = new TextView(InstrumentationRegistry.getTargetContext());
+        textView.setText(text);
+        state.resumeTiming();
+
+        while (state.keepRunning()) {
+
+            state.pauseTiming();
+            final DisplayListCanvas canvas = node.start(1200, 200);
+            int save = canvas.save();
+            textView.setTextLocale(Locale.UK);
+            textView.setTextLocale(Locale.US);
+            if (!mCached) Canvas.freeTextLayoutCaches();
+            state.resumeTiming();
+
+            textView.draw(canvas);
+
+            state.pauseTiming();
+            canvas.restoreToCount(save);
+            node.end(canvas);
+            state.resumeTiming();
+        }
+    }
+
+    private CharSequence createRandomText(int length) {
+        return new NonEditableTextGenerator(new Random(0))
+                .setSequenceLength(length)
+                .setCreateBoring(false)
+                .setTextType(mTextType)
+                .build();
+    }
+}