Use the correct API to query system properties.

import android.graphics.Canvas;

import android.graphics.Paint;

import android.graphics.Rect;

import android.os.SystemClock;

import android.os.*;

import android.util.EventLog;

import android.util.Log;

    @SuppressWarnings({"deprecation"})

    static abstract class GlRenderer extends HardwareRenderer {

        // These values are not exposed in our EGL APIs

        private static final int EGL_CONTEXT_CLIENT_VERSION = 0x3098;

        private static final int EGL_SURFACE_TYPE = 0x3033;

        private static final int EGL_SWAP_BEHAVIOR_PRESERVED_BIT = 0x0400;

        GlRenderer(int glVersion, boolean translucent) {

            mGlVersion = glVersion;

            mTranslucent = translucent;

            final String dirtyProperty = System.getProperty(RENDER_DIRTY_REGIONS_PROPERTY, "true");

            final String dirtyProperty = SystemProperties.get(RENDER_DIRTY_REGIONS_PROPERTY, "true");

            //noinspection PointlessBooleanExpression,ConstantConditions

            mDirtyRegions = RENDER_DIRTY_REGIONS && "true".equalsIgnoreCase(dirtyProperty);

        }

// Turn on to enable memory usage summary on each frame

#define DEBUG_MEMORY_USAGE 0

// Turn on to enable layers debugging when renderered as regions

// Turn on to enable layers debugging when rendered as regions

#define DEBUG_LAYERS_AS_REGIONS 0

// Turn on to display debug info about vertex/fragment shaders

// Turn on to display info about layers

#define DEBUG_LAYERS 0

// Turn on to display debug infor about 9patch objects

// Turn on to display debug info about 9patch objects

#define DEBUG_PATCHES 0

// Turn on to display vertex and tex coords data about 9patch objects

// This flag requires DEBUG_PATCHES to be turned on