xml布局文件里直接使用背景图导致爆内存的情况处理

在产品发布出去后，经常收到布局文件里边使用被背景图导致到内存的情况，一般报错日志如下： StackTrace : Unable to start activity ComponentInfo{com.gtp.nextlauncher.trial/com.gtp.nextlauncher.trial.recommand.RecommandGoSmsActivity}: android.view.InflateException: Binary XML file line #2: Error inflating class android.widget.RelativeLayoutjava.lang.RuntimeException: Unable to start activity ComponentInfo{com.gtp.nextlauncher.trial/com.gtp.nextlauncher.trial.recommand.RecommandGoSmsActivity}: android.view.InflateException: Binary XML file line #2: Error inflating class android.widget.RelativeLayout at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1659) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1675) at android.app.ActivityThread.access$1500(ActivityThread.java:121) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:943) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:123) at android.app.ActivityThread.main(ActivityThread.java:3701) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:507) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:862) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:620) at dalvik.system.NativeStart.main(Native Method) Caused by: android.view.InflateException: Binary XML file line #2: Error inflating class android.widget.RelativeLayout at android.view.LayoutInflater.createView(LayoutInflater.java:518) at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:56) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:568) at android.view.LayoutInflater.inflate(LayoutInflater.java:386) at android.view.LayoutInflater.inflate(LayoutInflater.java:320) at android.view.LayoutInflater.inflate(LayoutInflater.java:276) at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:207) at android.app.Activity.setContentView(Activity.java:1657) at com.gtp.nextlauncher.trial.recommand.RecommandGoSmsActivity.onCreate(RecommandGoSmsActivity.java:30) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1623) ... 11 more Caused by: java.lang.reflect.InvocationTargetException at java.lang.reflect.Constructor.constructNative(Native Method) at java.lang.reflect.Constructor.newInstance(Constructor.java:415) at android.view.LayoutInflater.createView(LayoutInflater.java:505) ... 21 more Caused by: java.lang.OutOfMemoryError: bitmap size exceeds VM budget at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method) at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:460) at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:336) at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:715) at android.content.res.Resources.loadDrawable(Resources.java:1713) at android.content.res.TypedArray.getDrawable(TypedArray.java:601) at android.view.View.(View.java:1969) at android.view.View.(View.java:1917) at android.view.ViewGroup.(ViewGroup.java:304) at android.widget.RelativeLayout.(RelativeLayout.java:173) ... 24 more android.view.InflateException: Binary XML file line #2: Error inflating class android.widget.RelativeLayout at android.view.LayoutInflater.createView(LayoutInflater.java:518) at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:56) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:568) at android.view.LayoutInflater.inflate(LayoutInflater.java:386) at android.view.LayoutInflater.inflate(LayoutInflater.java:320) at android.view.LayoutInflater.inflate(LayoutInflater.java:276) at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:207) at android.app.Activity.setContentView(Activity.java:1657) at com.gtp.nextlauncher.trial.recommand.RecommandSmsActivity.onCreate(RecommandSmsActivity.java:30) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1623) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1675) at android.app.ActivityThread.access$1500(ActivityThread.java:121) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:943) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:123) at android.app.ActivityThread.main(ActivityThread.java:3701) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:507) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:862) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:620) at dalvik.system.NativeStart.main(Native Method) Caused by: java.lang.reflect.InvocationTargetException at java.lang.reflect.Constructor.constructNative(Native Method) at java.lang.reflect.Constructor.newInstance(Constructor.java:415) at android.view.LayoutInflater.createView(LayoutInflater.java:505) ... 21 more Caused by: java.lang.OutOfMemoryError: bitmap size exceeds VM budget at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method) at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:460) at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:336) at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:715) at android.content.res.Resources.loadDrawable(Resources.java:1713) at android.content.res.TypedArray.getDrawable(TypedArray.java:601) at android.view.View.(View.java:1969) at android.view.View.(View.java:1917) at android.view.ViewGroup.(ViewGroup.java:304) at android.widget.RelativeLayout.(RelativeLayout.java:173) ... 24 more java.lang.reflect.InvocationTargetException at java.lang.reflect.Constructor.constructNative(Native Method) at java.lang.reflect.Constructor.newInstance(Constructor.java:415) at android.view.LayoutInflater.createView(LayoutInflater.java:505) at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:56) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:568) at android.view.LayoutInflater.inflate(LayoutInflater.java:386) at android.view.LayoutInflater.inflate(LayoutInflater.java:320) at android.view.LayoutInflater.inflate(LayoutInflater.java:276) at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:207) at android.app.Activity.setContentView(Activity.java:1657) at com.gtp.nextlauncher.trial.recommand.RecommandSmsActivity.onCreate(RecommandSmsActivity.java:30) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1623) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1675) at android.app.ActivityThread.access$1500(ActivityThread.java:121) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:943) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:123) at android.app.ActivityThread.main(ActivityThread.java:3701) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:507) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:862) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:620) at dalvik.system.NativeStart.main(Native Method) Caused by: java.lang.OutOfMemoryError: bitmap size exceeds VM budget at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method) at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:460) at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:336) at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:715) at android.content.res.Resources.loadDrawable(Resources.java:1713) at android.content.res.TypedArray.getDrawable(TypedArray.java:601) at android.view.View.(View.java:1969) at android.view.View.(View.java:1917) at android.view.ViewGroup.(ViewGroup.java:304) at android.widget.RelativeLayout.(RelativeLayout.java:173) ... 24 more java.lang.OutOfMemoryError: bitmap size exceeds VM budget at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method) at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:460) at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:336) at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:715) at android.content.res.Resources.loadDrawable(Resources.java:1713) at android.content.res.TypedArray.getDrawable(TypedArray.java:601) at android.view.View.(View.java:1969) at android.view.View.(View.java:1917) at android.view.ViewGroup.(ViewGroup.java:304) at android.widget.RelativeLayout.(RelativeLayout.java:173) at java.lang.reflect.Constructor.constructNative(Native Method) at java.lang.reflect.Constructor.newInstance(Constructor.java:415) at android.view.LayoutInflater.createView(LayoutInflater.java:505) at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:56) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:568) at android.view.LayoutInflater.inflate(LayoutInflater.java:386) at android.view.LayoutInflater.inflate(LayoutInflater.java:320) at android.view.LayoutInflater.inflate(LayoutInflater.java:276) at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:207) at android.app.Activity.setContentView(Activity.java:1657) at com.gtp.nextlauncher.trial.recommand.RecommandSmsActivity.onCreate(RecommandSmsActivity.java:30) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1623) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1675) at android.app.ActivityThread.access$1500(ActivityThread.java:121) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:943) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:123) at android.app.ActivityThread.main(ActivityThread.java:3701) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:507) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:862) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:620) at dalvik.system.NativeStart.main(Native Method) 很长，但关键日志是在： java.lang.OutOfMemoryError: bitmap size exceeds VM budget at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method) at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:460) at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:336) at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:715) at android.content.res.Resources.loadDrawable(Resources.java:1713) at android.content.res.TypedArray.getDrawable(TypedArray.java:601) at android.view.View.(View.java:1969) at android.view.View.(View.java:1917) at android.view.ViewGroup.(ViewGroup.java:304) at android.widget.RelativeLayout.(RelativeLayout.java:173) 这是由于解析xml时背景图标导致爆内存，至于最小是多大的图片会导致爆内存，这个无法确定，猜测应该跟机型和实际运行情况有关， 因为产品发布前测试过的机型都没有问题，用户的反馈信息中看到最低90多K会爆。 至于解决方案： 1）直接找设计师更话小一点的图片，不过设计师也难为，因为一张图片光亮，渐变等元素去掉之后，效果也没那么好了，鱼跟熊掌，不可兼得。 2）能不能从代码层面去减少图片的大小呢？？？ 可以的。可能通过代码来设置背景，然后通过trycatch来捕获爆内存； 继续优化的，可以通过动态缩放图标来减低爆内存机率。 RelativeLayout relativeLayout = (RelativeLayout) findViewById(R.id.recommand_sms); BitmapFactory.Options opts = new BitmapFactory.Options(); opts.inJustDecodeBounds = true; BitmapFactory.decodeResource(getResources(),R.drawable.recommand_sms_bg,opts); opts.inSampleSize = computeSampleSize(opts,-1,480 * 800); opts.inJustDecodeBounds = false; try { Bitmap bmp = BitmapFactory.decodeResource(getResources(),opts); relativeLayout.setBackgroundDrawable(new BitmapDrawable(bmp)); } catch (OutOfMemoryError err) { } /** * <br>功能简述: * <br>功能详细描述: * <br>注意: * @param options * @param minSideLength * @param maxNumOfPixels 最大显示像素 * @return */ public static int computeSampleSize(BitmapFactory.Options options,int minSideLength,int maxNumOfPixels) { int initialSize = computeInitialSampleSize(options,minSideLength,maxNumOfPixels); int roundedSize; if (initialSize <= 8) { roundedSize = 1; while (roundedSize < initialSize) { roundedSize <<= 1; } } else { roundedSize = (initialSize + 7) / 8 * 8; } return roundedSize; } private static int computeInitialSampleSize(BitmapFactory.Options options,int maxNumOfPixels) { double w = options.outWidth; double h = options.outHeight; int lowerBound = (maxNumOfPixels == -1) ? 1 : (int) Math.ceil(Math.sqrt(w * h / maxNumOfPixels)); int upperBound = (minSideLength == -1) ? 128 : (int) Math.min( Math.floor(w / minSideLength),Math.floor(h / minSideLength)); if (upperBound < lowerBound) { // return the larger one when there is no overlapping zone. return lowerBound; } if ((maxNumOfPixels == -1) && (minSideLength == -1)) { return 1; } else if (minSideLength == -1) { return lowerBound; } else { return upperBound; } }