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| public class MainActivity extends Activity {
private ListView mListView;
private ImageView shopCart;
private ImageView buyImg;
private ViewGroup anim_mask_layout;
private Context mContext;
private ProductAdapter productAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mContext = this;
initView();
}
private void initView() {
shopCart = (ImageView) findViewById(R.id.shopping_img_cart);
mListView = (ListView) findViewById(R.id.product_list);
productAdapter = new ProductAdapter();
mListView.setAdapter(productAdapter);
}
private class ProductAdapter extends BaseAdapter {
public ProductAdapter() {
}
@Override
public int getCount() {
return 20;
}
@Override
public String getItem(int position) {
return "商品" + (position + 1);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView,
final ViewGroup parent) {
String name = getItem(position);
ViewHolder holder = null;
if (convertView == null) {
convertView = LayoutInflater.from(mContext).inflate(
R.layout.item, null);
holder = new ViewHolder();
holder.nameTxt = (TextView) convertView.findViewById(R.id.name);
holder.buyBtn = (Button) convertView
.findViewById(R.id.product_buy_btn);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.nameTxt.setText(name);
holder.buyBtn.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
int[] start_location = new int[2];
v.getLocationInWindow(start_location);
buyImg = new ImageView(mContext);
buyImg.setImageResource(R.drawable.sign);
setAnim(buyImg, start_location);
}
});
return convertView;
}
class ViewHolder {
TextView nameTxt;
Button buyBtn;
}
}
private ViewGroup createAnimLayout() {
ViewGroup rootView = (ViewGroup) this.getWindow().getDecorView();
LinearLayout animLayout = new LinearLayout(this);
LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.MATCH_PARENT);
animLayout.setLayoutParams(lp);
animLayout.setId(Integer.MAX_VALUE);
animLayout.setBackgroundResource(android.R.color.transparent);
rootView.addView(animLayout);
return animLayout;
}
private View addViewToAnimLayout(final ViewGroup vg, final View view,
int[] location) {
int x = location[0];
int y = location[1];
LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.WRAP_CONTENT);
lp.leftMargin = x;
lp.topMargin = y;
view.setLayoutParams(lp);
return view;
}
private void setAnim(final View v, int[] start_location) {
anim_mask_layout = null;
anim_mask_layout = createAnimLayout();
anim_mask_layout.addView(v);
final View view = addViewToAnimLayout(anim_mask_layout, v,
start_location);
int[] end_location = new int[2];
shopCart.getLocationInWindow(end_location);
int endX = 0 - start_location[0] + 40;
int endY = end_location[1] - start_location[1];
Log.d("---", endX+""+endY);
TranslateAnimation translateAnimationX = new TranslateAnimation(0,
endX, 0, 0);
translateAnimationX.setInterpolator(new LinearInterpolator());
translateAnimationX.setRepeatCount(0);
translateAnimationX.setFillAfter(true);
TranslateAnimation translateAnimationY = new TranslateAnimation(0, 0,
0, endY);
translateAnimationY.setInterpolator(new AccelerateInterpolator());
translateAnimationY.setRepeatCount(0);
translateAnimationX.setFillAfter(true);
AnimationSet set = new AnimationSet(false);
set.setFillAfter(false);
set.addAnimation(translateAnimationY);
set.addAnimation(translateAnimationX);
set.setDuration(Math.abs(endY/1));
v.startAnimation(set);
set.setAnimationListener(new AnimationListener() {
@Override
public void onAnimationStart(Animation animation) {
v.setVisibility(View.VISIBLE);
}
@Override
public void onAnimationRepeat(Animation animation) {
}
@Override
public void onAnimationEnd(Animation animation) {
v.setVisibility(View.GONE);
}
});
}
}
|
