charsequence
CharSequence to int
Use Integer.parseInt(). If your CharSequence is not a String, then you need to convert it first using toString(). int number = Integer.parseInt(cs.toString());
How to merge some spannable objects?
You could use this: TextUtils.concat(span1, span2); http://developer.android.com/reference/android/text/TextUtils.html#concat(java.lang.CharSequence…)
ArrayList to CharSequence[]
You can use List#toArray(T[]) for this. CharSequence[] cs = list.toArray(new CharSequence[list.size()]); Here’s a little demo: List<String> list = Arrays.asList(“foo”, “bar”, “waa”); CharSequence[] cs = list.toArray(new CharSequence[list.size()]); System.out.println(Arrays.toString(cs)); // [foo, bar, waa]
Exact difference between CharSequence and String in java [duplicate]
General differences There are several classes which implement the CharSequence interface besides String. Among these are StringBuilder for variable-length character sequences which can be modified CharBuffer for fixed-length low-level character sequences which can be modified Any method which accepts a CharSequence can operate on all of these equally well. Any method which only accepts a … Read more
How to convert CharSequence to String?
By invoking its toString() method. Returns a string containing the characters in this sequence in the same order as this sequence. The length of the string will be the length of this sequence.
How to convert a String to CharSequence?
Since String IS-A CharSequence, you can pass a String wherever you need a CharSequence, or assign a String to a CharSequence: CharSequence cs = “string”; String s = cs.toString(); foo(s); // prints “string” public void foo(CharSequence cs) { System.out.println(cs); } If you want to convert a CharSequence to a String, just use the toString method … Read more
CharSequence VS String in Java?
Strings are CharSequences, so you can just use Strings and not worry. Android is merely trying to be helpful by allowing you to also specify other CharSequence objects, like StringBuffers.