1.高仿網易雲音樂客戶端的Home頁面切換Tabhost
高仿網易雲音樂客戶端的Home頁面切換Tabhost，並且三角形是透明的，
實現方式，自定義AnimTabsView繼承 RelativeLayout 裏面對當前選中的item 處理 三角形變成透明效果，
即在onDraw 裏面對三角形圖片經行透明度處理，AnimTabsView提供 setOnAnimTabsItemViewChangeListener
方法的onChange()用來監聽點擊切換tabhost.
下面主要是AnimTabsView裏面的onDraw()實現的，部分代碼如下：
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
if ((this.mScroller == null) || (!this.mScroller.computeScrollOffset())) {
this.mLeftDrawRect.set(0, this.mCurrentSlideY, this.mCurrentSlideX, this.mCurrentSlideY + this.mShadow.getHeight());
canvas.drawBitmap(this.mShadow, null, this.mLeftDrawRect, null);
this.mRightDrawRect.set(this.mCurrentSlideX + this.mSlideIcon.getWidth(), this.mCurrentSlideY, getWidth(), this.mCurrentSlideY
+ this.mShadow.getHeight());
canvas.drawBitmap(this.mShadow, null, this.mRightDrawRect, null);
canvas.drawBitmap(this.mSlideIcon, this.mCurrentSlideX, this.mCurrentSlideY, null);
return;
}
int scrollX = this.mScroller.getCurrX();
int scrollY = this.mScroller.getCurrY();
this.mLeftDrawRect.set(0, scrollY, scrollX, scrollY + this.mShadow.getHeight());
canvas.drawBitmap(this.mShadow, null, this.mLeftDrawRect, null);
this.mRightDrawRect.set(scrollX + this.mSlideIcon.getWidth(), scrollY, getWidth(),
scrollY + this.mShadow.getHeight());
canvas.drawBitmap(this.mShadow, null, this.mRightDrawRect, null);
canvas.drawBitmap(this.mSlideIcon, scrollX, scrollY, null);
invalidate();
}
運行效果：
2.FlipViewPager 對item實現左右對摺滑動翻頁效果
FlipViewPager 對每一條item實現左右對摺滑動翻頁效果，解決左右滑動和上下滑動的事件分發處理機制。
內部實現如下：用ListView試下，對listview設置adapter,這個adapter繼承BaseFlipAdapter<Friend>
，然後對每一個item進行view處理，部分代碼如下：
class FriendsAdapter extends BaseFlipAdapter<Friend> {
private final int PAGES = 3;
private int[] IDS_INTEREST = {R.id.interest_1, R.id.interest_2, R.id.interest_3, R.id.interest_4, R.id.interest_5};
public FriendsAdapter(Context context, List<Friend> items, FlipSettings settings) {
super(context, items, settings);
}
@Override
public View getPage(int position, View convertView, ViewGroup parent, Friend friend1, Friend friend2) {
final FriendsHolder holder;
if (convertView == null) {
holder = new FriendsHolder();
convertView = getLayoutInflater().inflate(R.layout.friends_merge_page, parent, false);
holder.leftAvatar = (ImageView) convertView.findViewById(R.id.first);
holder.rightAvatar = (ImageView) convertView.findViewById(R.id.second);
holder.infoPage = getLayoutInflater().inflate(R.layout.friends_info, parent, false);
holder.nickName = (TextView) holder.infoPage.findViewById(R.id.nickname);
for (int id : IDS_INTEREST)
holder.interests.add((TextView) holder.infoPage.findViewById(id));
convertView.setTag(holder);
} else {
holder = (FriendsHolder) convertView.getTag();
}
switch (position) {
// Merged page with 2 friends
case 1:
holder.leftAvatar.setImageResource(friend1.getAvatar());
if (friend2 != null)
holder.rightAvatar.setImageResource(friend2.getAvatar());
break;
default:
fillHolder(holder, position == 0 ? friend1 : friend2);
holder.infoPage.setTag(holder);
return holder.infoPage;
}
return convertView;
}
@Override
public int getPagesCount() {
return PAGES;
}
private void fillHolder(FriendsHolder holder, Friend friend) {
if (friend == null)
return;
Iterator<TextView> iViews = holder.interests.iterator();
Iterator<String> iInterests = friend.getInterests().iterator();
while (iViews.hasNext() && iInterests.hasNext())
iViews.next().setText(iInterests.next());
holder.infoPage.setBackgroundColor(getResources().getColor(friend.getBackground()));
holder.nickName.setText(friend.getNickname());
}
class FriendsHolder {
ImageView leftAvatar;
ImageView rightAvatar;
View infoPage;
List<TextView> interests = new ArrayList<>();
TextView nickName;
}
}
運行效果：
