Titanium Android：图像和内存

Question

I'm having problems with using images in both the Android emulator and the Galaxy S2. I'm not writing natively I'm using Titanium.

If I comment out any references to images in my app, it runs perfectly. I'm have checked for memory leaks and found none.

The error I get in the console is:

I/dalvikvm-heap( 1867): Clamp target GC heap from 24.689MB to 24.000MB
E/GraphicsJNI( 1867): VM won't let us allocate 1183156 bytes
D/dalvikvm( 1867): GC_FOR_MALLOC freed <1K, 45% free 4499K/8135K, external 16311K/16603K, paused 48ms
E/TiDrawableReference( 1867): (main) [3335,78053] Unable to load bitmap. Not enough memory: bitmap size exceeds VM budget
E/TiDrawableReference( 1867): java.lang.OutOfMemoryError: bitmap size exceeds VM budget

The app runs perfectly in iOS, are there any tips to better handle image management with Titanium and Android?

SDK: 1.8.2 Runtime: V8

Answer 1

This is due to memory issue with emulator. The simplest solution is to add below lines in tiapp.xml file

<property name="ti.android.threadstacksize" type="int">131072</property>
<property name="ti.android.httpclient.maxbuffersize" type="int">131072</property>

Answer 2

Well This is not Titanium Concerned.Because Android doesn't allow High Resolution Files or large weight Images from the Gallery or externalStorage.So You must use the Compressed Images or resized image.

Following Code might help You.Best of Luck...

        public void onActivityResult(int requestCode, int resultCode, Intent data) {
            if (resultCode == RESULT_OK) {
                if (requestCode == SELECT_PICTURE) {
                    Uri selectedImageUri = data.getData();
                    selectedImagePath = getPath(selectedImageUri);
                    File f = new File(selectedImagePath);
                    bmImg = decodeFile(f);//BitmapFactory.decodeFile(selectedImagePath, options);
                    takePhotoImg.setImageBitmap(imageManipulation.getResizedBitmap(
                            bmImg, 240, 160));

                    ByteArrayOutputStream bytes = new ByteArrayOutputStream();
                    bmImg.compress(Bitmap.CompressFormat.JPEG, 40, bytes);

                    SimpleDateFormat s = new SimpleDateFormat("ddMMyyyyhhmmss");
                    timeStamp = s.format(new Date());
                    File f1 = new File("/sdcard/mysdfile"+ "test"+timeStamp+".jpg");
                    try {
                        f1.createNewFile();
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                    //write the bytes in file
                    FileOutputStream fo;
                    try {
                        fo = new FileOutputStream(f1);
                        try {
                            fo.write(bytes.toByteArray());
                            System.out.println("#########File is being Written=========!!!!!");
                        } catch (IOException e) {
                            e.printStackTrace();
                        }
                    } catch (FileNotFoundException e) {
                        e.printStackTrace();
                    }
                }
            }   
        }

Answer 3

I have solved this problem by adding the following code to tiapp.xml

<application android:largeHeap="true">

View example under "Requesting a large heap from Dalvik" in the following url:

https://docs.axway.com/bundle/Titanium_SDK_allOS_en/page/tiapp_xml_and_timodule_xml_reference.html#tiapp.xmlandtimodule.xmlReference-Androidspecificapplicationproperties