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App Inventor 2 UrsPahoMqttClient 拓展 - 物联网轻量级MQTT协议 · App Inventor 2 中文网
...2:发送最新的保留消息覆盖之前的(推荐);
官方英文原版文档点此。
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How to retrieve the dimensions of a view?
I have a view made up of TableLayout, TableRow and TextView . I want it to look like a grid. I need to get the height and width of this grid. The methods getHeight() and getWidth() always return 0. This happens when I format the grid dynamically and also when I use an XML version.
...
Listing all extras of an Intent
...
private TextView tv;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
tv = new TextView(this);
tv.setText("Extras: \n\r");
setContentView(tv);
StringBuilder str =...
How to get current timestamp in milliseconds since 1970 just the way Java gets
...me.h>
struct timeval tp;
gettimeofday(&tp, NULL);
long int ms = tp.tv_sec * 1000 + tp.tv_usec / 1000;
refer this.
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How can I read a text file in Android?
...'ll need to add proper error handling here
}
//Find the view by its id
TextView tv = (TextView)findViewById(R.id.text_view);
//Set the text
tv.setText(text.toString());
following links can also help you :
How can I read a text file from the SD card in Android?
How to read text file in Android?...
Making a LinearLayout act like an Button
...lp me for just add the default pressed and released UI state (like in a ListView for instance).
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How to set TextView textStyle such as bold, italic
How to set TextView style (bold or italic) within Java and without using the XML layout?
27 Answers
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C++实现一款简单完整的聊天室服务器+客户端 - C/C++ - 清泛网 - 专注C/C++及内核技术
..._lock(&mutex);
while(!toStop && (rear+1)%MESSAGE_COUNT==front){
t.tv_sec = time(NULL)+1;
t.tv_nsec = 0;
pthread_cond_timedwait(&condition,&mutex,&t);
}
if(toStop){
pthread_cond_broadcast(&condition);
pthread_mutex_unlock(&mutex);
return -1;
}
int messa...
如果后面再出现“AI伴侣断开连接”,说明mit官方的rez服务器有问题,需要重...
如果后面再出现“AI伴侣断开连接”,说明mit官方的rez服务器有问题,需要重启等处理。原因大概是wenrtc通信问题,官方论坛有提到。。。但是保险起见,如果频繁出现,则需要启用我们自己的rez服务器。或者aiStarter顶上昨天坏...
How to add Action Bar from support library into PreferenceActivity?
...elegate().getMenuInflater();
}
@Override
public void setContentView(@LayoutRes int layoutResID) {
getDelegate().setContentView(layoutResID);
}
@Override
public void setContentView(View view) {
getDelegate().setContentView(view);
}
@Override
publ...
