工具栏后退按钮未调用OnOptions ItemSelected Android

Question

我可以在工具栏中看到后退按钮，但当我单击时，什么都没有发生。它不会onOptionsItemSelec，但当我删除ActionBarDrawerTougle的整个实现时，后退按钮工作正常。我需要在需要时在两者之间切换。提前感谢。

package demo.sample.com.sample.base;

public class MainActivity extends AppCompatActivity {

    private static final String TAG = MainActivity.class.getSimpleName();
    private DrawerLayout mDrawer;
    private ActionBarDrawerToggle mDrawerToggle;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_digi_care);

        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);

        mDrawer = (DrawerLayout) findViewById(R.id.drawer_layout);
        mDrawerToggle = new ActionBarDrawerToggle(
                this, mDrawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
        mDrawer.setDrawerListener(mDrawerToggle);
        mDrawerToggle.syncState();
        mDrawer.setFocusable(false);

        NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
        navigationView.setItemIconTintList(null);
        navigationView.setNavigationItemSelectedListener(this);
        navigationView.getMenu().getItem(0).setChecked(true);


        mDrawerToggle.setDrawerIndicatorEnabled(false);
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        Logger.i(TAG, "onOptionsItemSelected called");
        switch (item.getItemId()) {
            case android.R.id.home:
                Logger.i(TAG, "Back button pressed"); //Never getting called
                //onBackPressed();
                return true;

            default:
                return super.onOptionsItemSelected(item);
        }
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.map_menu, menu);
        return super.onCreateOptionsMenu(menu);
    }

}

Answer 1

我终于找到了一个解决方案。取而代之的是获得工具栏主页按钮点击onOptionsItemSelec（）它可以通过DrawerToggle.setToolbarNavigationClickListener来处理。

mDrawerToggle.setToolbarNavigationClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                // event when click home button
                Log.d("cek", "home selected");
            }
        });

多亏了“喵喵”。源-无法捕获工具栏主按钮单击事件

Answer 2

如果您希望单击切换按钮时触发onOptionsItemSelec（）方法，则需要使用不采用Toolbar参数的ActionBarDrawerTougle的四参数构造函数。

public ActionBarDrawerToggle(Activity activity,
                             DrawerLayout drawerLayout,
                             int openDrawerContentDescRes,
                             int closeDrawerContentDescRes)

否则，开关将直接处理抽屉的打开/关闭。