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我正在做一个应用程序。我有与imageAdapter，图库视图，gallery3dActivity并在MainActivity一个3D画廊。从3D图库获取绘制的它传递给其他活动为imageview的保存到sharedpreferences
ImageAdapter：
public class ImageAdapter extends BaseAdapter
{
private ImageView[] mImages;
private Context mContext;
public List<Map<String, Object>> list;
public Integer[] imgs = { R.drawable.cat, R.drawable.dog, R.drawable.bird,
R.drawable.chicken, R.drawable.cow, R.drawable.rabbit, R.drawable.pig,
R.drawable.sheep, R.drawable.donkey, R.drawable.deer, R.drawable.fox,
R.drawable.helephant, R.drawable.tiger, R.drawable.leopard, R.drawable.lion,
R.drawable.monquey, R.drawable.owl, R.drawable.panda, R.drawable.pinguin, R.drawable.zebra,};
public String[] titles = { "The Cat.", "The Dog", "The Bird", "The Chicken", "The Cow", "The Rabbit",
"The Pig", "The Sheep", "The Donkey", "The Deer","The Fox", "The Helephant", "The Tiger", "The Leopard",
"The Lion", "The Monquey", "The Owl", "The Panda", "The Pinguin", "The Zebra"};
public ImageAdapter(Context c)
{
this.mContext = c;
list = new ArrayList<Map<String, Object>>();
for (int i = 0; i < imgs.length; i++) {
HashMap<String, Object> map = new HashMap<String, Object>();
map.put("image", imgs[i]);
list.add(map);
}
mImages = new ImageView[list.size()];
}
public boolean createReflectedImages()
{
final int reflectionGap = 0;
final int Height = 350;
int index = 0;
for (Map<String, Object> map : list) {
Integer id = (Integer) map.get("image");
Bitmap originalImage = BitmapFactory.decodeResource(mContext.getResources(), id);
int width = originalImage.getWidth();
int height = originalImage.getHeight();
float scale = Height/(float)height;
Matrix sMatrix = new Matrix();
sMatrix.postScale(scale, scale);
Bitmap miniBitmap = Bitmap.createBitmap(originalImage, 0, 0,
originalImage.getWidth(), originalImage.getHeight(), sMatrix, true);
originalImage.recycle();
int mwidth = miniBitmap.getWidth();
int mheight = miniBitmap.getHeight();
Matrix matrix = new Matrix();
matrix.preScale(1, -1);
Bitmap reflectionImage = Bitmap.createBitmap(miniBitmap, 0, mheight/2, mwidth, mheight/2, matrix, false);
Bitmap bitmapWithReflection = Bitmap.createBitmap(mwidth, (mheight + mheight/2), Config.ARGB_8888);
Canvas canvas = new Canvas(bitmapWithReflection);
canvas.drawBitmap(miniBitmap, 0, 0, null);
Paint paint = new Paint();
canvas.drawRect(0, mheight, mwidth, mheight + reflectionGap, paint);
canvas.drawBitmap(reflectionImage, 0, mheight + reflectionGap, null);
paint = new Paint();
LinearGradient shader = new LinearGradient(0, miniBitmap.getHeight(), 0, bitmapWithReflection.getHeight()
+ reflectionGap, 0x70ffffff, 0x00ffffff, TileMode.CLAMP);
paint.setShader(shader);
paint.setXfermode(new PorterDuffXfermode(Mode.DST_IN));
canvas.drawRect(0, mheight, mwidth, bitmapWithReflection.getHeight() + reflectionGap, paint);
ImageView imageView = new ImageView(mContext);
imageView.setImageBitmap(bitmapWithReflection);
imageView.setLayoutParams(new GalleryView.LayoutParams((int)(width * scale),
(int)(mheight * 3/2.0 + reflectionGap)));
imageView.setScaleType(ScaleType.MATRIX);
mImages[index++] = imageView;
}
return true;
}
@Override
public int getCount() {
return imgs.length;
}
@Override
public Object getItem(int position) {
return mImages[position];
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
return mImages[position];
}
public float getScale(boolean focused, int offset) {
return Math.max(0, 1.0f/(float) Math.pow(2, Math.abs(offset)));
}
}
图库视图：
public class GalleryView extends Gallery
{
private Camera mCamera = new Camera();
private int mMaxRotationAngle = 45;
private int mMaxZoom = -120;
private int mCoveflowCenter;
public GalleryView(Context context)
{
super(context);
this.setStaticTransformationsEnabled(true);
}
public GalleryView(Context context, AttributeSet attrs)
{
super(context, attrs);
this.setStaticTransformationsEnabled(true);
}
public GalleryView(Context context, AttributeSet attrs, int defStyle)
{
super(context, attrs, defStyle);
this.setStaticTransformationsEnabled(true);
}
public int getMaxRotationAngle()
{
return mMaxRotationAngle;
}
public void setMaxRotationAngle(int maxRotationAngle)
{
mMaxRotationAngle = maxRotationAngle;
}
public int getMaxZoom()
{
return mMaxZoom;
}
public void setMaxZoom(int maxZoom)
{
mMaxZoom = maxZoom;
}
private int getCenterOfCoverflow()
{
return (getWidth() - getPaddingLeft() - getPaddingRight())/2 + getPaddingLeft();
}
private static int getCenterOfView(View view) {
return view.getLeft() + view.getWidth()/2;
}
@Override
protected void onSizeChanged(int w, int h, int oldw, int oldh)
{
mCoveflowCenter = getCenterOfCoverflow();
super.onSizeChanged(w, h, oldw, oldh);
}
@Override
protected boolean getChildStaticTransformation(View child, Transformation trans)
{
final int childCenter = getCenterOfView(child);
final int childWidth = child.getWidth();
int rotationAngle = 0;
trans.clear();
trans.setTransformationType(Transformation.TYPE_BOTH);
if (childCenter == mCoveflowCenter)
{
transformImageBitmap((ImageView) child, trans, 0);
}
else
{
rotationAngle = (int) (((float) (mCoveflowCenter - childCenter)/childWidth) * mMaxRotationAngle);
if (Math.abs(rotationAngle) > mMaxRotationAngle)
{
rotationAngle = (rotationAngle < 0) ? -mMaxRotationAngle : mMaxRotationAngle;
}
transformImageBitmap((ImageView) child, trans, rotationAngle);
}
return true;
}
private void transformImageBitmap(ImageView child, Transformation trans, int rotationAngle)
{
mCamera.save();
final Matrix imageMatrix = trans.getMatrix();
final int imageHeight = child.getLayoutParams().height;
final int imageWidth = child.getLayoutParams().width;
final int rotation = Math.abs(rotationAngle);
mCamera.translate(0.0f, 0.0f, -20.0f);
// As the angle of the view gets less, zoom in
if (rotation < mMaxRotationAngle)
{
float zoomAmount = (float) (mMaxZoom + (rotation * 1.0));
mCamera.translate(0.0f, 0.0f, zoomAmount);
}
mCamera.rotateY(rotationAngle);
mCamera.getMatrix(imageMatrix);
imageMatrix.preTranslate(-(imageWidth/2), -(imageHeight/2));
imageMatrix.postTranslate((imageWidth/2), (imageHeight/2));
mCamera.restore();
}
}
Gallery3DActivity：
public class Gallery3DActivity extends Activity {
private TextView tvTitle;
private GalleryView gallery;
private ImageAdapter adapter;
private ImageView Avatar;
@Override
public void onCreate(Bundle savedInstanceState) {
requestWindowFeature(Window.FEATURE_NO_TITLE);
super.onCreate(savedInstanceState);
setContentView(R.layout.grallery_layout);
initRes();
}
private void initRes(){
tvTitle = (TextView) findViewById(R.id.tvTitle);
gallery = (GalleryView) findViewById(R.id.mygallery);
Avatar = (ImageView) findViewById(R.id.imageAvatar);
adapter = new ImageAdapter(this);
adapter.createReflectedImages();
gallery.setAdapter(adapter);
gallery.setOnItemSelectedListener(new OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
tvTitle.setText(adapter.titles[position]);
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
gallery.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Intent i = new Intent(Gallery3DActivity.this, MainActivity.class);
int grallery_layout = 0;
Avatar.setImageResource(R.layout.grallery_layout);
startActivity(i);
Toast.makeText(Gallery3DActivity.this, "img " + (position+1) + " selected", Toast.LENGTH_SHORT).show();
}
});
}
}
在gallery.setOnItemClickListener我试图让绘制，并显示在在imageview的主要活动与ID imageAvatar但它不起作用。我尝试了很多方法，但没有运气。网格类型不工作，之后我想保存使用共享偏好的ImageView的新绘制。