购买物品后 Assets.Reload 内存不足

Question

我开发了一个使用 2 个纹理（一个是 2048x2048，另一个是 1024x2048）的游戏，此外我使用 7 个背景图片作为关卡图像（每个 640x960）。

当付款成功弹出时（应用程序计费）我得到了内存不足（OOM），我跟踪日志并发现错误是在运行 onSurfaceCreated 时出现的，其中代码 assets.reload 在重新加载我所有的纹理和背景图片的地方执行。

不知道该怎么做，因为如果我不重新加载，我将无法获得正确的图像。

仅供参考： assets.reload 也会在 pause/resume 执行时调用（当我在播放时按下主页按钮时），但它永远不会成为问题。

public class Texture {
GLGraphics glGraphics;
FileIO fileIO;
String fileName;
int textureId;
int minFilter;
int magFilter;
int width;
int height;

public Texture(GLGame glGame, String fileName) {
    this.glGraphics = glGame.getGLGraphics();
    this.fileIO = glGame.getFileIO();
    this.fileName = fileName;
    load();
}
private void load() {
    GL10 gl = glGraphics.getGL();
    int[] textureIds = new int[1];
    gl.glGenTextures(1, textureIds, 0);
    textureId = textureIds[0];
    InputStream in = null;
    try {
        in = fileIO.readAsset(fileName);
        Bitmap bitmap = BitmapFactory.decodeStream(in);
        width = bitmap.getWidth();
        height = bitmap.getHeight();
        gl.glBindTexture(GL10.GL_TEXTURE_2D, textureId);
        GLUtils.texImage2D(GL10.GL_TEXTURE_2D, 0, bitmap, 0);
        setFilters(GL10.GL_NEAREST, GL10.GL_NEAREST);
        gl.glBindTexture(GL10.GL_TEXTURE_2D, 0);
    } catch(IOException e) {
        throw new RuntimeException("Couldn't load texture '" + fileName + "'", e);
    } finally {
        if(in != null)
            try { in.close(); } catch (IOException e) { }
    }
}

public void reload() {
    load();
    bind();
    setFilters(minFilter, magFilter);
    glGraphics.getGL().glBindTexture(GL10.GL_TEXTURE_2D, 0);
}

public void setFilters(int minFilter, int magFilter) {
    this.minFilter = minFilter;
    this.magFilter = magFilter;
    GL10 gl = glGraphics.getGL();
    gl.glTexParameterf(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MIN_FILTER, minFilter);
    gl.glTexParameterf(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MAG_FILTER, magFilter);
}
public void bind() {
    GL10 gl = glGraphics.getGL();
    gl.glBindTexture(GL10.GL_TEXTURE_2D, textureId);
}
public void dispose() {
    GL10 gl = glGraphics.getGL();
    gl.glBindTexture(GL10.GL_TEXTURE_2D, textureId);
    int[] textureIds = { textureId };
    gl.glDeleteTextures(1, textureIds, 0);
    }
   }

正如你在代码中看到的（这是从 mario zachner 开始的 android 游戏框架），assets.reload 来自这个 texture.reload。

OOM发生在真实设备中（在samsung galaxy young和samsung galaxy note II上测试过）

附加问题：购买过程是否强制应用进入暂停模式？

更新/对答案的回应：根据您的建议，我修改了代码：

in = fileIO.readAsset(fileName);
        BitmapFactory.Options bfOptions=new BitmapFactory.Options();

        bfOptions.inJustDecodeBounds = true;           
        Bitmap bitmap = BitmapFactory.decodeStream(in,null,bfOptions);
        int imageHeight = bfOptions.outHeight;
        int imageWidth = bfOptions.outWidth;            

        bfOptions.inJustDecodeBounds = false;
        bfOptions.inSampleSize = calculateInSampleSize(bfOptions,imageWidth,imageHeight);
        bfOptions.inDither=false;                     //Disable Dithering mode
        bfOptions.inPurgeable=true;                   //Tell to gc that whether it needs free memory, the Bitmap can be cleared
        bfOptions.inInputShareable=true;              //Which kind of reference will be used to recover the Bitmap data after being clear, when it will be used in the future
        bfOptions.inTempStorage=new byte[32 * 1024]; 
        bitmap = BitmapFactory.decodeStream(in,null,bfOptions);
        width = bitmap.getWidth();
        height = bitmap.getHeight();
        gl.glBindTexture(GL10.GL_TEXTURE_2D, textureId);
        GLUtils.texImage2D(GL10.GL_TEXTURE_2D, 0, bitmap, 0);
        setFilters(GL10.GL_NEAREST, GL10.GL_NEAREST);
        gl.glBindTexture(GL10.GL_TEXTURE_2D, 0);

但是当它运行我得到了其他错误：仍然是 OOM 但是，它说 分配缩放位图失败

Answer 1

你应该重新审视这个

位图位图=BitmapFactory.decodeStream(in);

您可以使用

public static Bitmap decodeSampledBitmapFromFile(String photoPath) {

  BitmapFactory.Options options = new BitmapFactory.Options();
  options.inPreferredConfig = Bitmap.Config.ARGB_8888;
  //Here add more optiouns to optimize
  // options.inSampleSize = ...
  Bitmap bitmap = BitmapFactory.decodeFile(photoPath, options);
return bitmap;
}

看这里Android image resize

购买物品后 Assets.Reload 内存不足

Out Of Memory on Assets.Reload after Purchasing Item

android

bitmap

out-of-memory