How to share common layout between activities without fragment

Question

Is there any possible way to share layout(part) between activities? For example, in my app, all activities have similar layout, the top part is long operation indicator (a progr

Answer 1

You can create an abstract 'base' activity that all your activities extend from, overriding setContentView to merge the base, and sub activity layouts.

This way you can handle all the loading/error code in the base activity, and simply toggle between hiding and showing the views in the sub activities.

The abstract activity:

public abstract class BaseActivity extends Activity {

    protected RelativeLayout fullLayout;
    protected FrameLayout subActivityContent;

    @Override
    public void setContentView(int layoutResID) {
        fullLayout = (RelativeLayout) getLayoutInflater().inflate(R.layout.activity_base, null);  // The base layout
        subActivityContent = (FrameLayout) fullLayout.findViewById(R.id.content_frame);            // The frame layout where the activity content is placed.
        getLayoutInflater().inflate(layoutResID, subActivityContent, true);            // Places the activity layout inside the activity content frame.
        super.setContentView(fullLayout);                                                       // Sets the content view as the merged layouts.
    }

}

the layout file: