Question

In order to simplify some code, I’m wondering if it is possible to parameterize code that launches activities in an android application, so that instead of having 5

    public void showSettings(View view) {
    Intent SettingsActivity = new Intent(MainActivity.this, Settings.class);
    startActivity(SettingsActivity);

I can do something like the following

 public void showActivity(View view, String ActivityName) {
        Intent ActivityName = new Intent(MainActivity.this, ActivityName.class);
        startActivity(ActivityName);

Then, for each button in the UI, I simply apply the following to the “onclick” event

showActivity(Settings);

or

showActivity(domains);

This would save about 40-50 lines of code in my app. Obviously I know the above code is incorrect, but I’m not sure if it’s possible to do what I’m trying to accomplish.

Answer 1

How about something like:

public <T> void showActivity(View view, Class<T> activity) {
    Intent activityName = new Intent(MainActivity.this, activity);
    startActivity(activityName);
}

You can invoke it with

showActivity(Settings.class);