Question

我可以在工具栏中看到后退按钮，但是当我点击时，没有任何反应。它不会onOptionsItemSelected但是当我删除ActionBarDrawerToggle的整个实现时，后退按钮工作正常。我需要在两者之间切换。提前谢谢。

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

如果要在单击切换按钮时触发onOptionsItemSelected()方法，则需要使用不带ActionBarDrawerToggle参数的Toolbar的四参数构造函数。

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

否则，切换将直接处理抽屉打开/关闭。

Answer 2

我终于找到了解决方案。而是通过DrawerToggle.setToolbarNavigationClickListener获取工具栏主页按钮，可以通过mDrawerToggle.setToolbarNavigationClickListener(new View.OnClickListener() { @Override public void onClick(View v) { // event when click home button Log.d("cek", "home selected"); } });处理。

{{1}}

感谢@meow meo。来源 - Cannot catch toolbar home button click event

工具栏后退按钮未调用onOptionsItemSelected Android

2 个答案: