Develop Reference

Android setter of String array

now i've got simple setter and getter of string array. I want to use setter to put some retrevied json info + same text to array. When i use belowe code:
met.setPlacepic(new String[]{"http://dfsdfsdfsf/" + json.getString("source")});
it looks like setter put only one string to array, despite there is many more data.
Declaration is simple
public String[] placepic
and the setter is also simple:
public void setPlacepic(String[] placepic) {
this.placepic = placepic;
}
Anybody knows reason of this?

If the number of strings is fixed (you know exactly how many element you would have in the array), then you could use String Arrays:
String[] placepic = new String[20]; //20 strings
//Then, in your loop:
placepic[i] = yourData;
If you do NOT know how many strings in your data, You should use List:
List<String> placepicList= new ArrayList<String>();
//Then, in your loop:
placepicList.add(yourData);
//Then after the loop, you get the array
String[] placepic = placepicList.toArray(new String[placepicList.size()]);

how to remove a string from arraylist of strings, ANDROID

I created an arraylist of strings
List<String> textArray = new ArrayList<String>();
and then I added the strings(which I am getting from edittext) to textArray as follows
String text = editText1.getText().toString();
textArray.add(text);
Now I created a button and need to remove the string from the array when the button is clicked.But i dont know what to do.
I know for arrays of bitmaps we clear a bitmap from array using recycle but Please suggest me how to remove or clear the string from arraylist.

You can call one of:
to remove all entries
textArray.clear();
to remove from a specific position (e.g. first item)
textArray.remove(0);
to remove a specific string (that equals yours)
textArray.remove("myString");

Try this..
Getting position from the textArray array list
int pos = textArray.indexOf(text);
and then remove from the string position
textArray.remove(pos);
because we cannot directly remove the string. we can remove the string contains position.

You can do it with more then one way as per your need.
textArray.clear();
It will clear whole ArrayList.
If you want to remove only some specifis data from index then,
textArray.remove(INDEX TO REMOVE);

Try This
String text = editText1.getText().toString();
textArray.add(text);
to remove
textArray.remove(text);

Check whether an array list contains a value more than once in android

I have an arraylist in which i am storing a list of values. I have to check whether the list contains the same value more than once..And i need only the non-repeating values.. How can i check the number of existences of a value in array list??
Thanks in advance..

Here is how you can do it:
ArrayList<String>numbers= new ArrayList<String>();
numbers.add("1");
numbers.add("2");
numbers.add("1");
numbers.add("3");
int count= Collections.frequency(numbers, "1");
In this way count returns 2.

use
public static int frequency(Collection c,
Object o)
to get frequency of an object in a collection(arraylist).

android parcelable string array

I have
ArrayList<String> ids = ArrayList<String>();
What would be the cleanest way to make it Parceleable? Apparently String itself is not parcelable, so Parcel.writeList(ids) is not working.
I was thinking to either parcelize ArrayList<Uri> or put array contents into a Bundle.

Convert your list to String[] and use Parcel.writeStringArray. Example here

This isnt parcelizing, but to put it in a bundle:
ArrayList<String> ids = new ArrayList<String>();
savedInstanceState.putStringArrayList("key",ids);

add string to string array and display last/previous string in that string array

i want to add the current string in a textview view to a string array in arrays.xml.then display the last/previous string of that array in a textview (setText).

You cannot modify arrays.xml at runtime -- sorry! You will need to modify an in-memory ArrayList or something instead.