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Thread: Trying to fix my code but I keep failing :(

  1. #1
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    Default Trying to fix my code but I keep failing :(

    I've got this code that makes the image turn into a circle using a ListView. But as seen in the image, it dies when it goes to the end of the photo (the last few pixels are carried on when there not supposed to).

    I don't want the photo to take up the whole page, just the size of the photo. Here's the code and XML:

    mIdOK.jpg

    Stream item xml:

     
    <?xml version="1.0" encoding="utf-8"?>
    <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" >
     
    </RelativeLayout>
    activity stream xml:
     
    <ListView xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:tools="http://schemas.android.com/tools"
        android:id="@+id/main_list"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:divider="@null"
        android:dividerHeight="0px"
        android:drawSelectorOnTop="true"
        tools:context=".StreamActivity" />
    main code:
    public class StreamActivity extends Activity {
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
     
            setContentView(R.layout.activity_stream);
     
            StreamAdapter adapter = new StreamAdapter(this);
            ((ListView) findViewById(R.id.main_list)).setAdapter(adapter);
     
            adapter.add(new StreamItem(this, R.drawable.testimage1, null, null));
            adapter.add(new StreamItem(this, R.drawable.testimage1, null, null));
            adapter.add(new StreamItem(this, R.drawable.testimage1, null, null));
            adapter.add(new StreamItem(this, R.drawable.testimage1, null, null));
     
        }
     
        class StreamItem {
            final Bitmap mBitmap;
     
     
            StreamItem(Context c, int resid, String line1, String line2) {
                mBitmap = BitmapFactory.decodeResource(c.getResources(), resid);
     
            }
        }
     
        class StreamDrawable extends Drawable {
            private static final boolean USE_VIGNETTE = true;
     
            private final float mCornerRadius;
            private final RectF mRect = new RectF();
            private final BitmapShader mBitmapShader;
            private final Paint mPaint;
            private final int mMargin;
     
            StreamDrawable(Bitmap bitmap, float cornerRadius, int margin) {
                mCornerRadius = cornerRadius;
     
                mBitmapShader = new BitmapShader(bitmap,
                        Shader.TileMode.CLAMP, Shader.TileMode.CLAMP);
     
                mPaint = new Paint();
                mPaint.setAntiAlias(true);
                mPaint.setShader(mBitmapShader);
     
                mMargin = margin;
            }
     
            @Override
            protected void onBoundsChange(Rect bounds) {
                super.onBoundsChange(bounds);
                mRect.set(mMargin, mMargin, bounds.width() - mMargin, bounds.height() - mMargin);
     
                if (USE_VIGNETTE) {
                    RadialGradient vignette = new RadialGradient(
                            mRect.centerX(), mRect.centerY() * 1.0f / 0.7f, mRect.centerX() * 1.3f,
                            new int[] { 0, 0, 0x7f000000 }, new float[] { 0.0f, 0.7f, 1.0f },
                            Shader.TileMode.CLAMP);
     
                    Matrix oval = new Matrix();
                    oval.setScale(1.0f, 0.7f);
                    vignette.setLocalMatrix(oval);
     
                    mPaint.setShader(
                            new ComposeShader(mBitmapShader, vignette, PorterDuff.Mode.SRC_OVER));
                }
            }
     
            @Override
            public void draw(Canvas canvas) {
                canvas.drawRoundRect(mRect, mCornerRadius, mCornerRadius, mPaint);
            }
     
            @Override
            public int getOpacity() {
                return PixelFormat.TRANSLUCENT;
            }
     
            @Override
            public void setAlpha(int alpha) {
                mPaint.setAlpha(alpha);
            }
     
            @Override
            public void setColorFilter(ColorFilter cf) {
                mPaint.setColorFilter(cf);
            }       
        }
     
     
        class StreamAdapter extends ArrayAdapter<StreamItem> {
            private static final int CORNER_RADIUS =100; // dips
            private static final int MARGIN = 1; // dips
     
            private final int mCornerRadius;
            private final int mMargin;
            private final LayoutInflater mInflater;
     
            public StreamAdapter(Context context) {
                super(context, 0);
     
                final float density = context.getResources().getDisplayMetrics().density;
                mCornerRadius = (int) (CORNER_RADIUS * density + 0.5f);
                mMargin = (int) (MARGIN * density + 0.5f);
     
                mInflater = LayoutInflater.from(getContext());
            }
     
            @Override
            public View getView(int position, View convertView, ViewGroup parent) {
                ViewGroup view = null;
     
                if (convertView == null) {
                    view = (ViewGroup) mInflater.inflate(R.layout.stream_item, parent, false);
                } else {
                    view = (ViewGroup) convertView;
                }
     
                StreamItem item = getItem(position);
     
                StreamDrawable d = new StreamDrawable(item.mBitmap, mCornerRadius, mMargin);
                view.setBackgroundDrawable(d);
     
                int w = item.mBitmap.getWidth();
                int h = item.mBitmap.getHeight();
     
                float ratio = w / (float) h;
     
                LayoutParams lp = view.getLayoutParams();
                lp.width = getContext().getResources().getDisplayMetrics().widthPixels;
                lp.height = (int) (lp.width / ratio);
     
                return view;
            }
        }
    }


  2. #2
    Super Moderator Norm's Avatar
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    Default Re: Trying to fix my code but I keep failing :(

    Please edit your post and wrap your code with
    [code=java]
    <YOUR CODE HERE>
    [/code]
    to get highlighting and preserve formatting.
    If you don't understand my answer, don't ignore it, ask a question.

  3. #3
    Junior Member
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    Default Re: Trying to fix my code but I keep failing :(

    Any help is appreciated
    Last edited by james2013; February 12th, 2013 at 07:26 AM. Reason: fixing stuff

  4. #4
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    Default Re: Trying to fix my code but I keep failing :(

    I think Actually you want reduce the size of the image in listview?
    Regards
    Android developer
    Trinay Technology Solutions
    http://www.trinaytech.com
    5705750475

  5. #5

    Default Re: Trying to fix my code but I keep failing :(

    It may be possible that after decreasing size of image you will get done. After reading your post, i got this solution in my mind.

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