Improve ImageFloatingTextView Tracing (e6dad690) · Commits · e / os / android_frameworks_base

core/java/com/android/internal/widget/ImageFloatingTextView.java

+58 −5

Original line number	Diff line number	Diff line
		@@ -18,9 +18,11 @@ package com.android.internal.widget;

		import android.annotation.Nullable;
		import android.content.Context;
		import android.os.Build;
		import android.os.Trace;
		import android.text.BoringLayout;
		import android.text.Layout;
		import android.text.PrecomputedText;
		import android.text.StaticLayout;
		import android.text.TextUtils;
		import android.text.method.TransformationMethod;
		@@ -48,6 +50,10 @@ public class ImageFloatingTextView extends TextView {
		private int mLayoutMaxLines = -1;
		private int mImageEndMargin;

		private int mStaticLayoutCreationCountInOnMeasure = 0;

		private static final boolean TRACE_ONMEASURE = Build.isDebuggable();

		public ImageFloatingTextView(Context context) {
		this(context, null);
		}
		@@ -71,7 +77,10 @@ public class ImageFloatingTextView extends TextView {
		protected Layout makeSingleLayout(int wantWidth, BoringLayout.Metrics boring, int ellipsisWidth,
		Layout.Alignment alignment, boolean shouldEllipsize,
		TextUtils.TruncateAt effectiveEllipsize, boolean useSaved) {
		if (TRACE_ONMEASURE) {
		Trace.beginSection("ImageFloatingTextView#makeSingleLayout");
		mStaticLayoutCreationCountInOnMeasure++;
		}
		TransformationMethod transformationMethod = getTransformationMethod();
		CharSequence text = getText();
		if (transformationMethod != null) {
		@@ -115,7 +124,10 @@ public class ImageFloatingTextView extends TextView {
		}

		final StaticLayout result = builder.build();
		if (TRACE_ONMEASURE) {
		trackMaxLines();
		Trace.endSection();
		}
		return result;
		}

		@@ -141,7 +153,10 @@ public class ImageFloatingTextView extends TextView {

		@Override
		protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
		if (TRACE_ONMEASURE) {
		Trace.beginSection("ImageFloatingTextView#onMeasure");
		}
		mStaticLayoutCreationCountInOnMeasure = 0;
		int availableHeight = MeasureSpec.getSize(heightMeasureSpec) - mPaddingTop - mPaddingBottom;
		if (getLayout() != null && getLayout().getHeight() != availableHeight) {
		// We've been measured before and the new size is different than before, lets make sure
		@@ -168,8 +183,13 @@ public class ImageFloatingTextView extends TextView {
		super.onMeasure(widthMeasureSpec, heightMeasureSpec);
		}
		}


		if (TRACE_ONMEASURE) {
		trackParameters();
		Trace.endSection();
		}
		}

		@Override
		public void onRtlPropertiesChanged(int layoutDirection) {
		@@ -216,4 +236,37 @@ public class ImageFloatingTextView extends TextView {
		requestLayout();
		}
		}

		private void trackParameters() {
		if (!TRACE_ONMEASURE) {
		return;
		}
		Trace.setCounter("ImageFloatingView#staticLayoutCreationCount",
		mStaticLayoutCreationCountInOnMeasure);
		Trace.setCounter("ImageFloatingView#isPrecomputedText",
		isTextAPrecomputedText());
		}
		/**
		* @return 1 if {@link TextView#getText()} is PrecomputedText, else 0
		*/
		private int isTextAPrecomputedText() {
		final CharSequence text = getText();
		if (text == null \|\| text.isEmpty()) {
		return 0;
		}

		if (text instanceof PrecomputedText) {
		return 1;
		}

		return 0;
		}

		private void trackMaxLines() {
		if (!TRACE_ONMEASURE) {
		return;
		}

		Trace.setCounter("ImageFloatingView#layoutMaxLines", mLayoutMaxLines);
		}
		}