将String 转成 charsequence -java -android 帮助为EditText赋值

将String 转成 charsequence：使用强制转换：

CharSequence cs = "string";
String s = cs.toString();
foo(s); // prints "string"

public void foo(CharSequence cs) { 
  System.out.println(cs);
}

参考： http://stackoverflow.com/questions/1391970/how-to-convert-a-string-to-charsequence