Android 如何在droid中制作益智应用程序而不耗尽内存？

我注意到，谷歌play商店的其他益智应用程序最多可以达到400个独立的可移动益智块

我一直在努力学习如何至少拍摄一张代表我的谜题的图像， 裁剪某些部分并遮罩拼图块设计留下的图像空间，以便创建我的单个拼图块

我想为我的应用程序最多使用20块，但到目前为止，根据我的android studio内存日志，一旦位图工厂完成创建一个拼图块，我将使用大约18mb的内存，在创建20块以及应用程序的所有其他功能后，我将使用400+mb的内存，我必须使用“largeHeap=true”为了避免内存不足，但我已经接近超过这些更高的限制，以至于应用程序非常缓慢，足够多的动画活动将不可避免地导致应用程序崩溃

我很想知道其他游戏商店益智应用程序在做什么，而我没有

非常感谢您的任何意见

仅供参考，我的图像使用PNG24，测试图像上的尺寸为556x720

这里是一个例子，如果我只是创建一个动画的拼图块图像

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    this.requestWindowFeature(Window.FEATURE_NO_TITLE);//Remove title bar
    this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);//Hides notification bar
    this.setContentView(R.layout.activity_main);//set content view AFTER ABOVE sequence (to avoid crash)

    setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);

    mainDisplay = getWindowManager().getDefaultDisplay();
    mainLayout = (ViewGroup) findViewById(R.id.id_layout);

    DisplayMetrics m = new DisplayMetrics();
    this.getWindowManager().getDefaultDisplay().getMetrics(m);
    int windowHeight = m.heightPixels;
    int windowWidth = m.widthPixels;

    offsetX = (windowWidth / 1440.0f);
    offsetY = (windowHeight / 2560.0f);

    ourContext = this;

    xpos = new float[2];
    ypos = new float[2];

    iv_PuzzleOne();

    bkgdbm = BitmapFactory.decodeResource(getResources(), R.drawable.puzzleimage); 

    paintObject = new Paint();
    paintObject.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.XOR)); 

    bm_PuzzleOne();

    thisTimerTask = new ThisClass();
    thisTimer = new Timer();
    thisTimer.scheduleAtFixedRate(thisTimerTask, 16, 16);

    touchpad = new ImageButton(this);
    SetPos(0, 0, 1440, 2560);
    touchpad.setLayoutParams(layoutPositioner);
    touchpad.getBackground().setAlpha(1);
    mainLayout.addView(touchpad);

    touchpad.setOnTouchListener(new View.OnTouchListener() {

        //@SuppressLint("NewApi")
        @Override
        public boolean onTouch(View v, MotionEvent event) {

            if (event.getAction() == MotionEvent.ACTION_DOWN) {
                xpos[0] = event.getX(); //storing my finger's position coordinates when I first touch the screen into the 1st element
                ypos[0] = event.getY();

                if ((event.getX() > imgx1) && (event.getX() < imgx1 + imagewidth1)
                        && (event.getY() > imgy1) && (event.getY() < imgy1 + imageheight1)) {
                    touching1Puzzle = true;
                    img1.bringToFront();
                }

            }

            if (event.getAction() == MotionEvent.ACTION_MOVE) {

                xpos[1] = event.getX(); //add my finger's new current coordinates into the 2nd element
                ypos[1] = event.getY();

                if (touching1Puzzle) {
                    adjustImg();
                }
            }

            if (event.getAction() == MotionEvent.ACTION_UP) {
                if (touching1Puzzle) {
                    touching1Puzzle = false;
                }

            }

            return false;
        }

    });
}


void bm_PuzzleOne()
{
    //start of 1st puzzle

    foregdimg1 = BitmapFactory.decodeResource(getResources(), R.drawable.puzzlepieceprac);//puzzle cut out (42.48MB) +6.15
    mutableforegdimg1 = foregdimg1.copy(Bitmap.Config.ARGB_8888, true); //(48.32MB) +5.84

    compositeImage1 = Bitmap.createBitmap(mutableforegdimg1);//cuts out foreground info into bkgdimage (54.43MB) +6.11

    imgCanvas1 = new Canvas(compositeImage1); //canvas references puzzle cut out image (54.43MB) +0
    imgCanvas1.drawBitmap(croppedBmp, null, new Rect(0, 0, 1500, 2000), paintObject);//places puzzle image on canvas (54.43MB) +0

    img1.setImageBitmap(compositeImage1);

}


void iv_PuzzleOne()
{
    img1 = new ImageView(ourContext);
    SetPos(imgx1, imgy1, imagewidth1, imageheight1);
    //bkgdimg.setImageResource(R.drawable.c);
    //img1.setBackgroundColor(0xffF07305); //Orange
    img1.setLayoutParams(layoutPositioner);
    mainLayout.addView(img1);

}

void adjustImg()
{
    if (touching1Puzzle)
    {
        if (xpos[1] > xpos[0]) //if the image had slid to the right
        {
            xPositionDifference = xpos[1] - xpos[0]; // find the difference in coordinate value between where my finger was and where it currently is
            imgx1 += xPositionDifference; //add that difference to the current image position ...

            xpos[0] += xPositionDifference; // ... store that difference for the next shift in finger postion

        } else if (xpos[1] < xpos[0]) //if the image had slid to the left
        {
            xPositionDifference = xpos[0] - xpos[1]; // find the difference in coordinate value between where my finger was and where it currently is
            imgx1 -= xPositionDifference; //subtract that difference to the current image position ...

            xpos[0] -= xPositionDifference; // ... store that difference for the next shift in finger postion
        }

        if (ypos[1] > ypos[0]) //if the image had slid to the right
        {
            yPositionDifference = ypos[1] - ypos[0]; // find the difference in coordinate value between where my finger was and where it currently is
            imgy1 += yPositionDifference; //add that difference to the current image position ...

            ypos[0] += yPositionDifference; // ... store that difference for the next shift in finger postion

        } else if (ypos[1] < ypos[0]) //if the image had slid to the left
        {
            yPositionDifference = ypos[0] - ypos[1]; // find the difference in coordinate value between where my finger was and where it currently is
            imgy1 -= yPositionDifference; //subtract that difference to the current image position ...

            ypos[0] -= yPositionDifference; // ... store that difference for the next shift in finger postion

        }
    }

}

class ThisClass extends TimerTask {

    @Override
    public void run() {
        MainActivity.this.runOnUiThread(new Runnable() {
            @Override
            public void run() {

                if(touching1Puzzle)
                {SetPos(imgx1, imgy1, imagewidth1, imageheight1);
                    img1.setLayoutParams(layoutPositioner);}

            }
        });
    }
}

public void SetPos(float x, float y, float width, float height) {
    layoutPositioner = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
    layoutPositioner.topMargin = (int) (offsetY * y);
    layoutPositioner.leftMargin = (int) (offsetX * x);
    layoutPositioner.width = (int) (width * offsetX);
    layoutPositioner.height = (int) (height * offsetY);
}

@覆盖
创建时受保护的void（Bundle savedInstanceState）{
super.onCreate（savedInstanceState）；
this.requestWindowFeature（Window.FEATURE_NO_TITLE）；//删除标题栏
this.getWindow（）.setFlags（WindowManager.LayoutParams.FLAG_全屏，WindowManager.LayoutParams.FLAG_全屏）；//隐藏通知栏
this.setContentView（R.layout.activity_main）；//在上述顺序之后设置内容视图（以避免崩溃）
setRequestedOrientation（ActivityInfo.SCREEN\u ORIENTATION\u Picture）；
mainDisplay=getWindowManager（）.getDefaultDisplay（）；
mainLayout=（视图组）findViewById（R.id.id\u布局）；
DisplayMetrics m=新的DisplayMetrics（）；
这个.getWindowManager（）.getDefaultDisplay（）.getMetrics（m）；
int windowHeight=m.heightPixels；
int windowWidth=m.widthPixels；
偏移量x=（窗宽/1440.0f）；
偏移量=（窗高/2560.0f）；
我们的环境=这个；
xpos=新浮点[2]；
ypos=新浮点数[2]；
iv_拼图一（）；
bkgdbm=BitmapFactory.decodeResource（getResources（），R.drawable.puzzleimage）；
paintObject=新绘制（）；
setXfermode（新的PorterDuffXfermode（PorterDuff.Mode.XOR））；
bm_puzzone（）；
ThistTimerTask=新的ThisClass（）；
thisTimer=新计时器（）；
thisTimer.scheduleAtFixedRate（thisTimerTask，16,16）；
触摸板=新图像按钮（此按钮）；
SetPos（0,0,1440,2560）；
touchpad.setLayoutParams（布局定位器）；
touchpad.getBackground（）.setAlpha（1）；
mainLayout.addView（触摸板）；
touchpad.setOnTouchListener（新视图.OnTouchListener（）{
//@SuppressLint（“新API”）
@凌驾
公共布尔onTouch（视图v，运动事件）{
if（event.getAction（）==MotionEvent.ACTION\u向下）{
xpos[0]=event.getX（）；//存储我第一次将屏幕触摸到第一个元素时的手指位置坐标
ypos[0]=event.getY（）；
if（（event.getX（）>imgx1）&&（event.getX（）imgy1）和&（event.getY（）xpos[0]）//如果图像向右滑动
{
xPositionDifference=xpos[1]-xpos[0]；//查找手指所在位置与当前位置之间的坐标值差异
imgx1+=xPositionDifference；//将该差异添加到当前图像位置。。。
xpos[0]+=xPositionDifference；//…存储该差异，以便在手指位置的下一个班次中使用
}else if（xpos[1]ypos[0]）//如果图像向右滑动
{
yPositionDifference=ypos[1]
private LruCache<String, Bitmap> mMemoryCache;

@Override
protected void onCreate(Bundle savedInstanceState) {
    ...
    // Get max available VM memory, exceeding this amount will throw an
    // OutOfMemory exception. Stored in kilobytes as LruCache takes an
    // int in its constructor.
    final int maxMemory = (int) (Runtime.getRuntime().maxMemory() / 1024);

    // Use 1/8th of the available memory for this memory cache.
    final int cacheSize = maxMemory / 8;

    mMemoryCache = new LruCache<String, Bitmap>(cacheSize) {
        @Override
        protected int sizeOf(String key, Bitmap bitmap) {
            // The cache size will be measured in kilobytes rather than
            // number of items.
            return bitmap.getByteCount() / 1024;
        }
    };
    ...
}

public void addBitmapToMemoryCache(String key, Bitmap bitmap) {
    if (getBitmapFromMemCache(key) == null) {
        mMemoryCache.put(key, bitmap);
    }
}

public Bitmap getBitmapFromMemCache(String key) {
    return mMemoryCache.get(key);
}

void bm_PuzzleOne()
{
    //start of 1st puzzle
    BitmapFactory.Options opt = new BitmapFactory.Options();

    //makes a loaded image mutable
    opt.inMutable=true;
    //reduces density to that of screen
    opt.inTargetDensity = this.context.getResources().getDisplayMetrics().densityDpi;
    opt.inScaled=true;

    //makes bitmap half as big
    opt.inSampleSize=2;

    //foregdimg1 = BitmapFactory.decodeResource(getResources(), R.drawable.puzzlepieceprac);//puzzle cut out (42.48MB) +6.15
    mutableforegdimg1 = BitmapFactory.decodeResource(getResources(), R.drawable.puzzlepieceprac,opt)

    compositeImage1 = Bitmap.createBitmap(mutableforegdimg1);//cuts out foreground info into bkgdimage (54.43MB) +6.11

    imgCanvas1 = new Canvas(compositeImage1); //canvas references puzzle cut out image (54.43MB) +0
    imgCanvas1.drawBitmap(croppedBmp, null, new Rect(0, 0, 1500, 2000), paintObject);//places puzzle image on canvas (54.43MB) +0

    img1.setImageBitmap(compositeImage1);

}

void bm_PuzzleOne()
{
    //start of 1st puzzle

    foregdimg1 = BitmapFactory.decodeResource(getResources(), R.drawable.puzzlepieceprac);//puzzle cut out (42.48MB) +6.15
    mutableforegdimg1 = foregdimg1.copy(Bitmap.Config.ARGB_8888, true); //(48.32MB) +5.84

    compositeImage1 = Bitmap.createBitmap(mutableforegdimg1);//cuts out foreground info into bkgdimage (54.43MB) +6.11

    imgCanvas1 = new Canvas(compositeImage1); //canvas references puzzle cut out image (54.43MB) +0
    imgCanvas1.drawBitmap(croppedBmp, null, new Rect(0, 0, 1500, 2000), paintObject);//places puzzle image on canvas (54.43MB) +0

    img1.setImageBitmap(compositeImage1);

}

Button b[]=new Button[9];
ArrayList list=new ArrayList();
int random;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    requestWindowFeature(Window.FEATURE_NO_TITLE);
    this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
    setContentView(R.layout.activity_three);

    final MediaPlayer mediaPlayer = MediaPlayer.create(this,R.raw.b2);

   for(int i=0;i<b.length;i++)
   {

       int id=getResources().getIdentifier("b"+i,"id",getPackageName());
       b[i]=findViewById(id);
       b[i].setOnClickListener(this);

   }

   for(int i=0;i<b.length;i++)
   {
       while(true) {

           random = new Random().nextInt(9);
           Log.d("First=", "" + random);

           if (!list.contains(random)) {

               list.add(random);
               Log.d("List=", "" + list.get(i).toString());

               break;

           }
       }
   }

   for(int i=0;i<b.length;i++)
   {

       if(!list.get(i).toString().equals("0"))
       {

           b[i].setText(list.get(i).toString());

       }
       else
       {

           b[i].setText("");

       }

   }

}


public void back(View view) {


    final MediaPlayer mediaPlayer = MediaPlayer.create(this,R.raw.b2);
    mediaPlayer.start();
    Intent intent = new Intent(three.this,newgame.class);
    startActivity(intent);
    finish();



}

@Override
public void onClick(View v) {

    for(int i=0;i<b.length;i++)
    {

        if(v.getId()==b[i].getId())
        {
            final MediaPlayer mediaPlayer = MediaPlayer.create(this,R.raw.b2);
            mediaPlayer.start();

        }

    }


    if(v.getId()==b[0].getId())
    {
        if (b[1].getText().toString().equals("")) {
            b[1].setText("" + b[0].getText().toString());
            b[0].setText("");
        }

        if (b[3].getText().toString().equals("")) {
            b[3].setText("" + b[0].getText().toString());
            b[0].setText("");
        }
    }

    if(v.getId()==b[1].getId())
    {
        if(b[0].getText().toString().equals(""))
        {
            b[0].setText(""+b[1].getText().toString());
            b[1].setText("");
        }

        if(b[2].getText().toString().equals(""))
        {
            b[2].setText(""+b[1].getText().toString());
            b[1].setText("");
        }

        if(b[4].getText().toString().equals(""))
        {
            b[4].setText(""+b[1].getText().toString());
            b[1].setText("");
        }

    }

    if(v.getId()==b[2].getId())
    {

        if (b[1].getText().toString().equals(""))
        {

            b[1].setText("" + b[2].getText().toString());
            b[2].setText("");

        }

        if (b[5].getText().toString().equals(""))
        {

            b[5].setText("" + b[2].getText().toString());
            b[2].setText("");

        }
    }

    if(v.getId()==b[3].getId())
    {
        if(b[0].getText().toString().equals(""))
        {
            b[0].setText(""+b[3].getText().toString());
            b[3].setText("");
        }

        if(b[4].getText().toString().equals(""))
        {
            b[4].setText(""+b[3].getText().toString());
            b[3].setText("");
        }

        if(b[6].getText().toString().equals(""))
        {
            b[6].setText(""+b[3].getText().toString());
            b[3].setText("");
        }

    }

    if(v.getId()==b[4].getId())
    {
        if(b[1].getText().toString().equals(""))
        {
            b[1].setText(""+b[4].getText().toString());
            b[4].setText("");
        }

        if(b[3].getText().toString().equals(""))
        {
            b[3].setText(""+b[4].getText().toString());
            b[4].setText("");
        }

        if(b[5].getText().toString().equals(""))
        {
            b[5].setText(""+b[4].getText().toString());
            b[4].setText("");
        }

        if(b[7].getText().toString().equals(""))
        {
            b[7].setText(""+b[4].getText().toString());
            b[4].setText("");
        }

    }

    if(v.getId()==b[5].getId())
    {
        if(b[2].getText().toString().equals(""))
        {
            b[2].setText(""+b[5].getText().toString());
            b[5].setText("");
        }

        if(b[4].getText().toString().equals(""))
        {
            b[4].setText(""+b[5].getText().toString());
            b[5].setText("");
        }

        if(b[8].getText().toString().equals(""))
        {
            b[8].setText(""+b[5].getText().toString());
            b[5].setText("");
        }

    }

    if(v.getId()==b[6].getId())
    {
        if (b[7].getText().toString().equals(""))
        {

            b[7].setText("" + b[6].getText().toString());
            b[6].setText("");

        }

        if (b[3].getText().toString().equals(""))
        {

            b[3].setText("" + b[6].getText().toString());
            b[6].setText("");

        }

    }

    if(v.getId()==b[7].getId())
    {
        if(b[4].getText().toString().equals(""))
        {
            b[4].setText(""+b[7].getText().toString());
            b[7].setText("");
        }

        if(b[6].getText().toString().equals(""))
        {
            b[6].setText(""+b[7].getText().toString());
            b[7].setText("");
        }

        if(b[8].getText().toString().equals(""))
        {
            b[8].setText(""+b[7].getText().toString());
            b[7].setText("");
        }

    }

    if(v.getId()==b[8].getId())
    {
        if (b[7].getText().toString().equals(""))
        {

            b[7].setText("" + b[8].getText().toString());
            b[8].setText("");

        }

        if (b[5].getText().toString().equals(""))
        {

            b[5].setText("" + b[8].getText().toString());
            b[8].setText("");

        }

    }


}

public void reset(View view) {

    final MediaPlayer mediaPlayer = MediaPlayer.create(this,R.raw.b2);
    mediaPlayer.start();

    Intent intent = new Intent(three.this,three.class);
    startActivity(intent);
    finish();

}