Common methods for Android application development Encapsulation (i)

In the process of Android development, there are a lot of things are often used, in order to improve efficiency, the usual methods to make a record.

1. In network programming, if you have not established a socket to use send write, there will be an exception, the package is no problem (if you send byte[] type to change the parameter type):

public static Boolean sendmsg (OutputStream outs,string str) {

Boolean isconnect=false;

if (outs!=null)
try {
Outs.write (Str.getbytes ());
Outs.flush ();
Isconnect=true;
} catch (IOException e) {
Isconnect=false;
}

return isconnect;
}

2. When receiving a picture message, usually receive the size first, then receive the content, and the content may be received several times, we can encapsulate such a class:

public class Myutil {
public static byte[] Read (Bufferedinputstream bin, int size, int max) {
byte[] image = new Byte[size];
int hasread = 0;
while (true) {
if (Max > Size-hasread) {
max = Size-hasread; ///The remaining bytes are less than Max, then the remaining bytes are assigned to Max
}

try {
Hasread = Hasread + bin.read (image, Hasread, Max); bytes read//accumulated
} catch (IOException e) {
E.printstacktrace ();
}

if (Hasread = = size) {
Break
}
}
return image;
}
}

Common methods for Android application development Encapsulation (i)