How to start multiple activity By onClick method

Question

I am working on a project where I am showing multiple image in SwipeView with a button. So whenever the button is clicked a new activity will start according to the position of the image in the array. How to do this?

Answer 1

Set a tag (relevant to the activity being launched) to each ImageView while inflating, using setTag method.

In the onClick handler retrive the tag using the getTag method. Use this information to launch the required activity, using a simple switch case .

The tag can be anything like activity name, array index etc.

More info: What is the main purpose of setTag() getTag() methods of View?

Answer 2

With each item in your list, you need a Class reference on which Activity you want to start, then assign the click listener to pass that Class to an Intent and then startActivity

Assuming you have some ArrayList<Class> list or an ArrayAdapter<SomeObject> adapter, you could do

public void onClick(View v) {
    Class activityClass = list.get(clickPosition);
    // Class activityClass = adapter.getItem(clickPosition).getActivityToStart();
    Intent intent = new Intent(this, activityClass);
    startActivity(intent);
}

You could also use a String tag on the View with the name of a class, but you'll need to catch the ClassNotFoundException.

public void onClick(View v) {
    String className = (String) v.getTag();
    Class activityClass = Class.forName(className);
    Intent intent = new Intent(this, activityClass);
    startActivity(intent);
}