Update Map.java

setContentView(R.layout.ui_map); <----- asalnya activity_main

//aku nambahin fungsi ini buat tombol menu di android
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.activity_main, menu);
        return true;
    }
    
    public boolean onOptionsItemSelected(MenuItem item)
    {
        switch(item.getItemId())
        {
        case  R.id.menu_settings:
        	this.setContentView(R.layout.activity_main);
            
        	Intent intent = new Intent(Map.this, UpdateTweet.class);
	        startActivity(intent);
            break;
        }
        return true;
    }