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我需要顯示在畫布上的圖像內存異常的我嘗試使用下面的代碼及其工作好一些times.but如果播放相同的頁面一次又一次我得到位圖的大小超過了內存exception.i衝浪在網絡和我設置樣本大小，那個時候也正在得到例外，請任何人幫助我這麼多天在我遇到這個問題的病房。出在我的應用程序的Android
Lines.class
public class Lines extends Activity
{
BitmapDrawable sounddrawable,erasedrawable,backdrwable,fwddrwable,captiondrwable,img1drwable;
Bitmap img1bitmap,soundbitmap,eraseBitmap,backbitmap,fwdbitmap,captionbitmap;
Bitmap bitmapOrg1,bitmapOrg2,bitmapOrg3,bitmapOrg4,bitmapOrg5,bitmapOrg6,bitmapOrg;
MyView myview;
View content;
float screenHeight,screenWidth,screendensity;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setNoTitle();
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
DisplayMetrics displaymetrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(displaymetrics);
screenHeight = displaymetrics.heightPixels;
screenWidth = displaymetrics.widthPixels;
screendensity = displaymetrics.densityDpi;
Log.i("screenHeight",""+screenHeight);
Log.i("screenWidth",""+screenWidth);
Log.i("screendensity",""+screendensity);
setContentView(R.layout.line);
widtho=(int)(91*(screenWidth/1024));
highto=(int)(175*(screenHeight/600));
bitmapOrg = Bitmap.createScaledBitmap(bitmapOrg, widtho, highto, true);
leftorg=(int)(120*(screenWidth/1024));
toporg=(int)(130*(screenHeight/600));
bitmapOrg1 = BitmapFactory.decodeResource(getResources(),
R.drawable.line1_2);
width1=(int)(90*(screenWidth/1024));
hight1=(int)(175*(screenHeight/600));
bitmapOrg1 = Bitmap.createScaledBitmap(bitmapOrg1, width1, hight1, true);
leftorg1=(int)(300*(screenWidth/1024));
toporg1=(int)(130*(screenHeight/600));
bitmapOrg2 = BitmapFactory.decodeResource(getResources(),
R.drawable.line1_3);
bitmapOrg2 = Bitmap.createScaledBitmap(bitmapOrg2, widtho, highto, true);
leftorg2=(int)(470*(screenWidth/1024));
toporg2=(int)(130*(screenHeight/600));
bitmapOrg3 = BitmapFactory.decodeResource(getResources(),
R.drawable.line1_4);
bitmapOrg3 = Bitmap.createScaledBitmap(bitmapOrg3, width1, hight1, true);
leftorg3=(int)(640*(screenWidth/1024));
toporg3=(int)(130*(screenHeight/600));
bitmapOrg4 = BitmapFactory.decodeResource(getResources(),
R.drawable.line1_5);
bitmapOrg4 = Bitmap.createScaledBitmap(bitmapOrg4, width1, hight1, true);
leftorg4=(int)(810*(screenWidth/1024));
toporg4=(int)(130*(screenHeight/600));
bitmapOrg5 = BitmapFactory.decodeResource(getResources(),
R.drawable.line1_6);
width6=(int)(237*(screenWidth/1024));
hight6=(int)(139*(screenHeight/600));
bitmapOrg5 = Bitmap.createScaledBitmap(bitmapOrg5, width6, hight6, true);
leftorg5=(int)(150*(screenWidth/1024));
toporg5=(int)(370*(screenHeight/600));
bitmapOrg6 = BitmapFactory.decodeResource(getResources(),
R.drawable.line1_7);
bitmapOrg6 = Bitmap.createScaledBitmap(bitmapOrg6, width6, hight6, true);
leftorg6=(int)(600*(screenWidth/1024));
toporg6=(int)(370*(screenHeight/600));
}
mPaint = new Paint();
mPaint.setAntiAlias(true);
mPaint.setDither(true);
mPaint.setColor(Color.BLACK);
mPaint.setStyle(Paint.Style.STROKE);
mPaint.setStrokeJoin(Paint.Join.ROUND);
mPaint.setStrokeCap(Paint.Cap.ROUND);
mPaint.setStrokeWidth(6);
}
private void setNoTitle() {
// TODO Auto-generated method stub
requestWindowFeature(Window.FEATURE_NO_TITLE);
}
private Paint mPaint;
private Bitmap mBitmap;
public void colorChanged(int color) {
mPaint.setColor(color);
}
public class MyView extends View
{
private Canvas mCanvas;
private Path mPath;
private Paint mBitmapPaint;
public MyView(Context context) {
super(context);
// TODO Auto-generated constructor stub
mPath = new Path();
mBitmapPaint = new Paint(Paint.DITHER_FLAG);
}
@Override
protected void onSizeChanged(int w, int h, int oldw, int oldh) {
super.onSizeChanged(w, h, oldw, oldh);
if (mBitmap != null) {
mBitmap.recycle();
mBitmap=null;
}
mBitmap = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
mCanvas = new Canvas(mBitmap);
mCanvas.setBitmap(mBitmap);
}
@Override
protected void onDraw(Canvas canvas) {
if(action)
{
invalidate();
}
Paint painto = new Paint();
painto.setAntiAlias(true);
painto.setColor(getResources().getColor(R.color.magnata));
painto.setStrokeWidth(3);
painto.setStyle(Paint.Style.FILL);
bitmapOrg.recycle();
canvas.drawBitmap(bitmapOrg, leftorg, toporg, null);
bitmapOrg1.recycle();
canvas.drawBitmap(bitmapOrg1, leftorg1,toporg1, null);
bitmapOrg2.recycle();
canvas.drawBitmap(bitmapOrg2, leftorg2,toporg2, null);
bitmapOrg3.recycle();
canvas.drawBitmap(mBitmap, 0, 0, mBitmapPaint);
canvas.drawBitmap(bitmapOrg3, leftorg3,toporg3, null);
bitmapOrg4.recycle();
canvas.drawBitmap(bitmapOrg4, leftorg4,toporg4, null);
bitmapOrg6.recycle();
canvas.drawBitmap(bitmapOrg6, leftorg6,toporg6, null);
bitmapOrg5.recycle();
canvas.drawBitmap(bitmapOrg5, leftorg5,toporg5, null);
canvas.drawPath(mPath, mPaint);
}
private float mX, mY;
private float TOUCH_TOLERANCE = 2;
private void touch_start(float x, float y) {
mPath.reset();
mPath.moveTo(x, y);
mX = x;
mY = y;
}
private void touch_move(float x, float y) {
float dx = Math.abs(x - mX);
float dy = Math.abs(y - mY);
if (dx >= TOUCH_TOLERANCE || dy >= TOUCH_TOLERANCE) {
mPath.quadTo(mX, mY, (x + mX)/2, (y + mY)/2);
mX = x;
mY = y;
}
}
private void touch_up() {
mPath.lineTo(mX, mY);
mCanvas.drawPath(mPath, mPaint);
mPath.reset();
}
@Override
public boolean onTouchEvent(MotionEvent event) {
float x = event.getX();
float y = event.getY();
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
touch_start(x, y);
invalidate();
break;
case MotionEvent.ACTION_MOVE:
touch_move(x, y);
invalidate();
break;
case MotionEvent.ACTION_UP:
touch_up();
invalidate();
break;
}
return true;
}
}
你應該避免在初始化'的onDraw（）'方法的對象， – 2013-02-27 06:49:24
你確信回收所有的位圖上收的活動呢？ – 2013-02-27 06:49:51
yes.i暫停回收，onresume無用。我在繪製我沒有intialized在我的代碼任何東西與繪製對象的權利？ – radha 2013-02-27 07:01:49