Adding elements from a Object

Question

How can I add a View in my Activity from a instantiated object?

I have this class:

   public class Object {
       public Object (Context context) {
         this.context = context
       }
       public void my_method() {
          //Add something in my view
       }
    }

and my mainactivity:

protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
                Object obj = new Object(this);
//when i call this method \/ i wanted to add anything in my view 
                obj.my_method();
}

How can i do this?

Why have you named your class Object ?! You are shadowing `java.lang.Object`... — George Simms, Jul 27 '15 at 20:49

score 1 · Answer 1 · edited May 23 '17 at 12:06

1

Use this methodology to get the activity main view: https://stackoverflow.com/a/4488149/785121

Then pass it to your method: obj.my_method(view)

edited May 23 '17 at 12:06

Community

1
1

answered Jul 27 '15 at 19:21

nirs

333
1
5

score -1 · Answer 2 · answered Jul 27 '15 at 21:14

You should start by specifying the component where your object will put the view. For example, add a LinearLayout to your activity_main.xml and find a reference to it:

setContentView(R.layout.activity_main);
LinearLayout layout = (LinearLayout) findViewById(R.id.my_layout);

Once you have that reference, pass it as a constructor argument to your Object, or as an argument to my_method(). For example:

Object obj = new Object(this, layout);

or

obj.my_method(layout);

Finally, make your method create the views and add it to the container:

public void my_method() {
    layout.addView(...);
}

Adding elements from a Object

2 Answers2