public class LikeView extends CheckBox implements CompoundButton.OnCheckedChangeListener {
private int likeCount;
private OnLikeChangedListener onLikeChangedListener;
public LikeView(Context context, AttributeSet attrs) {
super(context, attrs);
init();
}
private void init() {
setGravity(Gravity.CENTER_VERTICAL);
refresh(isChecked());
String text = getText().toString().trim();
if (TextUtils.isEmpty(text)) {
likeCount = 0;
} else {
likeCount = Integer.parseInt(text);
}
setText(likeCount + "");
setOnCheckedChangeListener(this);
}
private void refresh(boolean checked) {
String text = getText().toString().trim();
if (TextUtils.isEmpty(text)) {
likeCount = 0;
} else {
likeCount = Integer.parseInt(text);
}
if (checked) {
setCompoundDrawablesWithIntrinsicBounds(getResources().getDrawable(R.drawable.ic_liked), null, null, null);
likeCount++;
setText(likeCount + "");
} else {
setCompoundDrawablesWithIntrinsicBounds(getResources().getDrawable(R.drawable.ic_like), null, null, null);
if (likeCount > 0) {
likeCount--;
}
setText(likeCount + "");
}
}
public void addOnLikeChangeListener(OnLikeChangedListener onLikeChangedListener) {
this.onLikeChangedListener = onLikeChangedListener;
}
public int getLikeCount(){
return likeCount;
}
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
refresh(isChecked);
if (onLikeChangedListener != null) {
onLikeChangedListener.onLikeChanged();
}
}
public interface OnLikeChangedListener {
void onLikeChanged();
}
}
