开源中国（三）

android:descendantFocusability用法简析

在遇到因ImageButton，Button，CheckBox等子控件(也可以说是Button或者Checkable的子类控件)，此时这些子控件会将焦点获取到，而导致item没有获取焦点可设置

android:descendantFocusability=”blocksDescendants”

的属性

消息通知

在

MianActivity

中设置广播，进行广播监听,广播的总数等于各个消息的总和，判断是不

MyInformationFragment

进行数值传递

private BroadcastReceiver mReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction().equals(Constants.INTENT_ACTION_NOTICE)) {
mNotice = (Notice) intent.getSerializableExtra("notice_bean");
int atmeCount = mNotice.getAtmeCount();// @我
int msgCount = mNotice.getMsgCount();// 留言
int reviewCount = mNotice.getReviewCount();// 评论
int newFansCount = mNotice.getNewFansCount();// 新粉丝
int newLikeCount = mNotice.getNewLikeCount();// 收到赞
int activeCount = atmeCount + reviewCount + msgCount
+ newFansCount + newLikeCount;

Fragment fragment = getCurrentFragment();
if (fragment instanceof MyInformationFragment) {
((MyInformationFragment) fragment).setNotice();
} else {
if (activeCount > 0) {
mBvNotice.setText(activeCount + "");
mBvNotice.show();
} else {
mBvNotice.hide();
mNotice = null;
}
}
} else if (intent.getAction()
.equals(Constants.INTENT_ACTION_LOGOUT)) {
mBvNotice.hide();
mNotice = null;
}
}
};

之后通过

BadgeView

对数值展示，小红点的数值

mMesCount = new BadgeView(getActivity(), mMesView);
//设置小红点的大小
mMesCount.setTextSize(TypedValue.COMPLEX_UNIT_SP, 10);
//设置小红点居中
mMesCount.setBadgePosition(BadgeView.POSITION_CENTER);
mMesCount.setGravity(Gravity.CENTER);
mMesCount.setBackgroundResource(R.drawable.notification_bg);