直接新建空Activity,标题栏没有返回按钮,标题也是和MainActivity 是一样的,怎么来加返回按钮,以及标题呢?标题栏背景是否也可以修改?
在新建的空Activity中的onCreated 方法中添加如下代码即可:
public class testActivity extends AppCompatActivity {@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_test);ActionBar actionBar = getSupportActionBar();if(actionBar != null){actionBar.setHomeButtonEnabled(true);actionBar.setDisplayHomeAsUpEnabled(true);actionBar.setTitle("测试页面");actionBar.setBackgroundDrawable(getResources().getDrawable(R.drawable.tab_menu_auto));}}@Overridepublic boolean onOptionsItemSelected(MenuItem item){switch (item.getItemId()){case android.R.id.home:this.finish();return true;}return super.onOptionsItemSelected(item);}}