Android:内存错误,因为ImageView?
我有两项活动 Activity A=GameActivity使用PhotoTask.class的实例,该实例扩展了AsyncTask并用于拍摄和保存图片。保存图片后,我启动活动B=ShareActivity 当我拍照并且不改变方向时,活动B被调用,一切正常。然而,如果我改变屏幕的方向来拍照(我从portait切换到横向),我在拍照时会出错(活动B不会启动) 我甚至在我的代码中注释了我的位图图像,但仍然有位图错误! 奇怪的是,如果我在代码中对ImageView5进行注释(没有任何特殊功能)并保留位图,我就没有错误。这个问题似乎来自这个图像视图,但我无法解释 我在清单中添加了configChanges:orientation,recycle my bnitmaps,在PhotoTask中使用活动的WeakReference(而不是acitvity本身)作为变量,试图用eclipse内存分析器()查看内存泄漏,但不明白为什么会出现这些错误 我真的搜索了很多,我变得非常绝望,所以如果你能帮助我,那就太好了Android:内存错误,因为ImageView?,android,eclipse,memory-leaks,imageview,Android,Eclipse,Memory Leaks,Imageview,我有两项活动 Activity A=GameActivity使用PhotoTask.class的实例,该实例扩展了AsyncTask并用于拍摄和保存图片。保存图片后,我启动活动B=ShareActivity 当我拍照并且不改变方向时,活动B被调用,一切正常。然而,如果我改变屏幕的方向来拍照(我从portait切换到横向),我在拍照时会出错(活动B不会启动) 我甚至在我的代码中注释了我的位图图像,但仍然有位图错误! 奇怪的是,如果我在代码中对ImageView5进行注释(没有任何特殊功能)并保留位
02-04 10:03:04.353: E/AndroidRuntime(17427): FATAL EXCEPTION: main
02-04 10:03:04.353: E/AndroidRuntime(17427): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.kersplatt/com.example.kersplatt.ShareActivity}: android.view.InflateException: Binary XML file line #23: Error inflating class <unknown>
02-04 10:03:04.353: E/AndroidRuntime(17427): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1647)
02-04 10:03:04.353: E/AndroidRuntime(17427): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663)
02-04 10:03:04.353: E/AndroidRuntime(17427): at android.app.ActivityThread.access$1500(ActivityThread.java:117)
02-04 10:03:04.353: E/AndroidRuntime(17427): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931)
02-04 10:03:04.353: E/AndroidRuntime(17427): at android.os.Handler.dispatchMessage(Handler.java:99)
02-04 10:03:04.353: E/AndroidRuntime(17427): at android.os.Looper.loop(Looper.java:130)
02-04 10:03:04.353: E/AndroidRuntime(17427): at android.app.ActivityThread.main(ActivityThread.java:3683)
02-04 10:03:04.353: E/AndroidRuntime(17427): at java.lang.reflect.Method.invokeNative(Native Method)
02-04 10:03:04.353: E/AndroidRuntime(17427): at java.lang.reflect.Method.invoke(Method.java:507)
02-04 10:03:04.353: E/AndroidRuntime(17427): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:875)
02-04 10:03:04.353: E/AndroidRuntime(17427): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:633)
02-04 10:03:04.353: E/AndroidRuntime(17427): at dalvik.system.NativeStart.main(Native Method)
02-04 10:03:04.353: E/AndroidRuntime(17427): Caused by: android.view.InflateException: Binary XML file line #23: Error inflating class <unknown>
02-04 10:03:04.353: E/AndroidRuntime(17427): at android.view.LayoutInflater.createView(LayoutInflater.java:518)
02-04 10:03:04.353: E/AndroidRuntime(17427): at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:56)
02-04 10:03:04.353: E/AndroidRuntime(17427): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:568)
02-04 10:03:04.353: E/AndroidRuntime(17427): at android.view.LayoutInflater.rInflate(LayoutInflater.java:623)
02-04 10:03:04.353: E/AndroidRuntime(17427): at android.view.LayoutInflater.rInflate(LayoutInflater.java:626)
02-04 10:03:04.353: E/AndroidRuntime(17427): at android.view.LayoutInflater.inflate(LayoutInflater.java:408)
02-04 10:03:04.353: E/AndroidRuntime(17427): at android.view.LayoutInflater.inflate(LayoutInflater.java:320)
02-04 10:03:04.353: E/AndroidRuntime(17427): at android.view.LayoutInflater.inflate(LayoutInflater.java:276)
02-04 10:03:04.353: E/AndroidRuntime(17427): at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:209)
02-04 10:03:04.353: E/AndroidRuntime(17427): at android.app.Activity.setContentView(Activity.java:1657)
02-04 10:03:04.353: E/AndroidRuntime(17427): at com.example.kersplatt.ShareActivity.onCreate(ShareActivity.java:64)
02-04 10:03:04.353: E/AndroidRuntime(17427): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
02-04 10:03:04.353: E/AndroidRuntime(17427): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1611)
02-04 10:03:04.353: E/AndroidRuntime(17427): ... 11 more
02-04 10:03:04.353: E/AndroidRuntime(17427): Caused by: java.lang.reflect.InvocationTargetException
02-04 10:03:04.353: E/AndroidRuntime(17427): at java.lang.reflect.Constructor.constructNative(Native Method)
02-04 10:03:04.353: E/AndroidRuntime(17427): at java.lang.reflect.Constructor.newInstance(Constructor.java:415)
02-04 10:03:04.353: E/AndroidRuntime(17427): at android.view.LayoutInflater.createView(LayoutInflater.java:505)
02-04 10:03:04.353: E/AndroidRuntime(17427): ... 23 more
02-04 10:03:04.353: E/AndroidRuntime(17427): Caused by: java.lang.OutOfMemoryError: bitmap size exceeds VM budget
02-04 10:03:04.353: E/AndroidRuntime(17427): at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method)
02-04 10:03:04.353: E/AndroidRuntime(17427): at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:460)
02-04 10:03:04.353: E/AndroidRuntime(17427): at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:336)
02-04 10:03:04.353: E/AndroidRuntime(17427): at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:697)
02-04 10:03:04.353: E/AndroidRuntime(17427): at android.content.res.Resources.loadDrawable(Resources.java:1709)
02-04 10:03:04.353: E/AndroidRuntime(17427): at android.content.res.TypedArray.getDrawable(TypedArray.java:601)
02-04 10:03:04.353: E/AndroidRuntime(17427): at android.widget.ImageView.<init>(ImageView.java:118)
02-04 10:03:04.353: E/AndroidRuntime(17427): at android.widget.ImageView.<init>(ImageView.java:108)
02-04 10:03:04.353: E/AndroidRuntime(17427): ... 26 more
课堂摄影任务
public class PhotoTask extends AsyncTask<Boolean, Void, Void> {
private Camera camera;
private SurfaceView surfaceCamera;
private boolean isPreview=false;
private SurfaceHolder holder;
private WeakReference<GameActivity> weakgameactivity;
GameActivity gameactivity;
private File output;
public PhotoTask(Camera camera, SurfaceView surfaceCamera,boolean isPreview, SurfaceHolder holder, GameActivity gameactivity) {
super();
this.camera = camera;
this.surfaceCamera = surfaceCamera;
this.isPreview = isPreview;
this.holder = holder;
this.weakgameactivity = new WeakReference<GameActivity>(gameactivity);
this.gameactivity=this.weakgameactivity.get();
}
PictureCallback myPictureCallback_JPG = new PictureCallback(){
@Override
public void onPictureTaken(byte[] data, Camera camera) {
Log.w("GAMEACTIVITY","FIRST");
// ImageView image5 = (ImageView) gameactivity.findViewById(R.id.imageView6);
File imagesFolder = new File(Environment.getExternalStorageDirectory(), "/KersplattFolder");
imagesFolder.mkdirs();
SimpleDateFormat dateFormat = new SimpleDateFormat("yyyymmddhhmmss");
String date = dateFormat.format(new Date());
String fileName = "Kersplatt_" + date + ".jpg";
output = new File(imagesFolder, fileName);
ImageView view = (ImageView) gameactivity.findViewById(R.id.imageView6);
view.setDrawingCacheEnabled(true);
Bitmap b = view.getDrawingCache();
FileOutputStream fos = null;
try {
fos = new FileOutputStream(output);
} catch (FileNotFoundException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
b.compress(CompressFormat.JPEG, 95, fos);
try {
fos.write(data);
fos.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
}
catch (IOException e) {
e.printStackTrace();
}
camera.stopPreview();
Log.w("GAMEACTIVITY","INTENT");
b.recycle();
Intent intent = new Intent(gameactivity.getApplicationContext(),ShareActivity.class);
// Sending the picture taken to ShareActivity
intent.putExtra("PICTURE_TAKEN", output);
gameactivity.startActivity(intent);
}
};
@Override
protected Void doInBackground(Boolean... params) {
camera.takePicture(null,null, myPictureCallback_JPG);
Log.w("GAMEACTIVITY","TAKEPICTURE");
return null;
}
}
公共类PhotoTask扩展了AsyncTask{
私人摄像机;
私人表面查看表面摄像头;
私有布尔值isPreview=false;
私人土地持有人;
私人WeakReference weakgame活动;
配子活动;
私有文件输出;
公共摄影任务(摄像头、SurfaceView surfaceCamera、boolean isPreview、SurfaceHolder支架、GameActivity GameActivity){
超级();
这个。照相机=照相机;
this.surfaceCamera=surfaceCamera;
this.isPreview=isPreview;
这个.holder=holder;
this.weakgameactivity=新的WeakReference(游戏活动);
this.gameactivity=this.weakgameactivity.get();
}
PictureCallback myPictureCallback_JPG=新建PictureCallback(){
@凌驾
公共void onPictureTaken(字节[]数据,摄像头){
Log.w(“游戏活动”,“第一”);
//ImageView image5=(ImageView)gameactivity.findViewById(R.id.imageView6);
File imagesFolder=新文件(Environment.getExternalStorageDirectory(),“/KersplattFolder”);
imagesFolder.mkdirs();
SimpleDataFormat dateFormat=新的SimpleDataFormat(“yyyymmddhhmmss”);
字符串date=dateFormat.format(newdate());
String fileName=“Kersplatt_”+日期+”.jpg”;
输出=新文件(imagesFolder,文件名);
ImageView=(ImageView)gameactivity.findViewById(R.id.imageView6);
view.setDrawingCacheEnabled(true);
位图b=view.getDrawingCache();
FileOutputStream=null;
试一试{
fos=新文件输出流(输出);
}捕获(FileNotFoundException e1){
//TODO自动生成的捕捉块
e1.printStackTrace();
}
b、 压缩(CompressFormat.JPEG,95,fos);
试一试{
写入(数据);
fos.close();
}catch(filenotfounde异常){
e、 printStackTrace();
}
捕获(IOE异常){
e、 printStackTrace();
}
camera.stopPreview();
Log.w(“游戏活动”、“意图”);
b、 回收();
Intent Intent=new Intent(gameactivity.getApplicationContext(),ShareActivity.class);
//将拍摄的照片发送到ShareActivity
intent.putExtra(“拍摄的照片”,输出);
游戏活动。开始触觉(意图);
}
};
@凌驾
受保护的Void doInBackground(布尔值…参数){
拍照(空,空,myPictureCallback_JPG);
Log.w(“游戏活动”、“拍照”);
返回null;
}
}
我的图像视图5
<ImageView
android:id="@+id/imageView5"
android:layout_width="85dp"
android:layout_height="100dp"
android:layout_marginLeft="8dp"
android:layout_marginTop="20dp"
android:adjustViewBounds="true"
android:src="@drawable/diviseur" />
拍照后,您需要使用“图像大小调整”来调整图像大小,并将其传递给图像以及所需的新宽度和高度。 如果跟踪clcik DDMS上的堆,然后在设备列表上的设备上调试代码,您将看到映像的大小在增加 从官方文件来看 阅读后,您可以尝试以下代码,您的问题将得到解决
/** getResizedBitmap method is used to Resized the Image according to custom width and height
* @param image
* @param newHeight (new desired height)
* @param newWidth (new desired Width)
* @return image (new resized image)
* */
public static Bitmap getResizedBitmap(Bitmap image, int newHeight, int newWidth) {
int width = image.getWidth();
int height = image.getHeight();
float scaleWidth = ((float) newWidth) / width;
float scaleHeight = ((float) newHeight) / height;
// create a matrix for the manipulation
Matrix matrix = new Matrix();
// resize the bit map
matrix.postScale(scaleWidth, scaleHeight);
// recreate the new Bitmap
Bitmap resizedBitmap = Bitmap.createBitmap(image, 0, 0, width, height,
matrix, false);
return resizedBitmap;
}
正如乌斯曼·库尔德所说,您将(完整的)图像加载到内存中,并在内存中创建该图像的副本。这会占用大量内存。他提到的文件说明:
BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
BitmapFactory.decodeResource(getResources(), R.id.myimage, options);
int imageHeight = options.outHeight;
int imageWidth = options.outWidth;
String imageType = options.outMimeType;
内存不足发生在这两行中的任何一行,而不是在imageview中设置图像时
Bitmap bitmap = BitmapFactory.decodeFile(file.getAbsolutePath());
Bitmap mutableBitmap = bitmap.copy(Bitmap.Config.ARGB_8888, true);
如果你使用这个安卓系统,它不会将整个位图加载到内存中,而是一个缩小的版本。
阅读文档,你的错误肯定会消失
上面的代码将只解码边界。说明了如何使用它。请参阅“将缩小的版本加载到内存”一章。如何正确实现此功能您必须对其进行解码。。在应用于manifiest.xml文件中的图像视图之前,下面的属性是什么?android:screenOrientation=这不是问题所在,因为当我对在imageview中放置位图的部分进行注释时,仍然会出现错误android.view.InflateException:Binary XML file line#23:error inflating class(我的imageview5所在的位置),而我对此不做任何操作!我没有指定屏幕方向,但我有android:configChanges=“orientation | keyboardHidden用于我的2项活动请参见我的评论”我认为这不是问题所在,当我对将位图放入imageview的部分进行注释时,仍然会出现错误android.view.InflateException:Binary XML文件行#23:error inflating class(我的imageview5所在的位置),而我却什么也不做!"
Bitmap bitmap = BitmapFactory.decodeFile(file.getAbsolutePath());
Bitmap mutableBitmap = bitmap.copy(Bitmap.Config.ARGB_8888, true);