IM项目总结
作为一个Android初学者，这个项目算学到不少东西；随便总结总结，供以后参考
1.EventBus 1.0.1的使用；
例：
(1) XX1.java 触发EventBus事件；
RefreshUnReadEvent refreshUnReadEvent = new RefreshUnReadEvent();//RefreshUnReadEvent相当于一个javaBean，可进行参数传递
refreshUnReadEvent.setFromUserid(resp.getFromUserId());
EventBus.getDefault().post(refreshUnReadEvent);
(2) XX2.java 注册
EventBus.getDefault().register(this, "refreshUnRead", RefreshUnReadEvent.class);
(3) XX2.java 具体实现（此处的方法名需与注册的“refreshUnRead”保持一致）
public void refreshUnReadMainThread(RefreshUnReadEvent event) {
//event.getFromUserid()
}
2.推送通知
例：
public void notifyUserMessage(String title, String content, Intent intent)
{
remove();
if (mNotificationManager == null)
{
mNotificationManager = (NotificationManager) mContext.getSystemService(Context.NOTIFICATION_SERVICE);
}
mNotification = new Notification(R.drawable.ic_launcher, content, System.currentTimeMillis());
mNotification.setLatestEventInfo(mContext, title, content, getPendingIntentForMessage(intent));
mNotification.flags |= Notification.FLAG_AUTO_CANCEL;//根据Notification.FLAG_AUTO_CANCEL 改变推送提示格式
mNotificationManager.notify(NOTIFICATION_ID, mNotification);// 发起通知
}
public PendingIntent getPendingIntentForMessage(Intent intent)
{
PendingIntent pendingIntent = PendingIntent.getActivity(mContext, 0, intent, PendingIntent.FLAG_CANCEL_CURRENT);
return pendingIntent;
}
3.广播Broadcast
例：
(1) XX1.java
Intent clearUnreadIntent = new Intent(MTActions.CLEAR_CONVERSATION_UNREAD_COUNT_ACTION);
clearUnreadIntent.putExtra("conversationType", Constants.DISCUSSION_CONVERSATION);
clearUnreadIntent.putExtra("conversationId", discussion.getDiscussionId());
mContext.sendBroadcast(clearUnreadIntent);
(2) XX2.java
private BroadcastReceiver mReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (MTActions.CLEAR_CONVERSATION_UNREAD_COUNT_ACTION.equals(action)) {
//操作
}
}
｝
//注册广播
private void registerReceivers() {
IntentFilter filter = new IntentFilter();
filter.addAction(MTActions.CLEAR_CONVERSATION_UNREAD_COUNT_ACTION);
registerReceiver(mReceiver, filter);
｝
//注销广播
unregisterReceiver(mReceiver);
4.左划删除(SwipeMenuListView)
例：
//此处只做删除操作，具体其它操作度娘
(1)
SwipeMenuCreator creator = new SwipeMenuCreator() {
@Override
public void create(SwipeMenu menu) {
// create "delete" item
SwipeMenuItem deleteItem = new SwipeMenuItem(
getApplicationContext());
// set item background
deleteItem.setBackground(new ColorDrawable(Color.rgb(0xF9,
0x3F, 0x25)));
// set item width
deleteItem.setWidth(dp2px(70));
// set a icon
deleteItem.setIcon(R.drawable.ic_delete);
// add to menu
menu.addMenuItem(deleteItem);
}
};
(2)
private SwipeMenuListView mListView;
mListView = (SwipeMenuListView) findViewById(R.id.lv_conversation);
mListView.setMenuCreator(creator);
mListView.setAdapter(mConversationListAdapter);
mListView.setOnItemClickListener(this);
mListView.setOnMenuItemClickListener(new SwipeMenuListView.OnMenuItemClickListener() {
@Override
public boolean onMenuItemClick(int position, SwipeMenu menu, int index) {
switch (index) {
case 0://左划删除
deleteViewList(position);
refresh();
break;
}
return false;
}
});
6.无法打包或者部分手机不兼容(超过65536，部分Android系统自动分包)
(1)build.gradle文件
defaultConfig{
multiDexEnabled = true
}
dependencies {
//添加支持multidex的兼容包
compile 'com.android.support:multidex:1.0.0'
｝
(2)MTApplication.java文件
@Override
protected void attachBaseContext(Context base) {
super.attachBaseContext(base);
MultiDex.install(base);
}
7.定时（最大61秒，从61-11开始10秒内，每1秒执行一次）
CountDownTimer downTimer = new CountDownTimer(61000, 1000) {
@Override
public void onTick(long millisUntilFinished) {
if (millisUntilFinished <= 11000 && millisUntilFinished > 0) {
record_rl.setVisibility(View.GONE);
rl_daojishi.setVisibility(View.VISIBLE);
record_daojishi_text.setText(millisUntilFinished / 1000 + "");
}
}
@Override
public void onFinish() {
rl_daojishi.setVisibility(View.GONE);
}
};
downTimer.start();//开始
downTimer.cancel();//结束
8.
//按住说话，提示需动态切换图片
Subscription subscription;
int position = 0;
int image[] = {R.drawable.img_yuyin1, R.drawable.img_yuyin2, R.drawable.img_yuyin3, R.drawable.img_yuyin};
private void changeMicro() {
if (subscription != null) {
return;
}
record_img.setImageResource(image[0]);
subscription = Observable.interval(300, TimeUnit.MILLISECONDS).subscribeOn(Schedulers.io()).observeOn(AndroidSchedulers.mainThread()).subscribe(new Action1
@Override
public void call(Long aLong) {
if (subscription != null && !subscription.isUnsubscribed()) {
record_img.setImageResource(image[position % image.length]);
position++;
}
}
});
}
//取消图片切换
private void cancelMicro() {
if (subscription != null) {
subscription.unsubscribe();
subscription = null;
position = 0;
}
record_img.setImageResource(R.drawable.record_cancel);
}
9.textMessage.setAutoLinkMask(Linkify.ALL);
系统自带的高亮，ALL包括WEB_URLS、EMAIL_ADDRESSES、PHONE_NUMBERS、MAP_ADDRESSES