10

我有这个导航抽屉，它工作得很好。重构我的代码，我删除了所有onOptionsItemSelecteds活动，并使所有活动都继承自一个基本活动，该基本活动扩展AppComplatActivity并实现了所有必要的方法。在此之后单击汉堡包图标不再起作用，即使我有syncstate() 和所有东西。

任何线索为什么这不起作用？

活动之一：

public class MainActivity extends BaseActivity implements SearchFilterFragment.OnFragmentInteractionListener {

NavigationView navigationView;
DrawerLayout drawerLayout;

private Tracker mTracker;

@Override
protected void onResume() {
    super.onResume();
    drawerLayout.openDrawer(GravityCompat.START);
}

@Override
protected void onPostResume() {
    super.onPostResume();
    mTracker.setScreenName("MainActivity" + "-----");
    mTracker.send(new HitBuilders.ScreenViewBuilder().build());
}

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    getWindow().getDecorView().setLayoutDirection(View.LAYOUT_DIRECTION_RTL);
    drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
    drawerLayout.openDrawer(GravityCompat.START);
    navigationView = (NavigationView) findViewById(R.id.navigation_view_primary);
    navigationView.setNavigationItemSelectedListener(new NavigationDrawerListener(this));
    setupToolbar();
    Haftdong application = (Haftdong) getApplication();
    mTracker = application.getDefaultTracker();
}

private void setupToolbar() {
    // Show menu icon
    final ActionBar actionBar = getSupportActionBar();
    actionBar.setDisplayHomeAsUpEnabled(true);// will make the icon clickable and add the < at the left of the icon.
    DrawerLayout mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
    ActionBarDrawerToggle mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
    mDrawerLayout.setDrawerListener(mDrawerToggle);
    mDrawerToggle.syncState();//for hamburger icon
}

@Override
public void onFragmentInteraction(Uri uri) {
}

}

基本活动：

public class BaseActivity extends AppCompatActivity {

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

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.menu_base, menu);
    return true;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    // Handle action bar item clicks here. The action bar will
    // automatically handle clicks on the Home/Up button, so long
    // as you specify a parent activity in AndroidManifest.xml.
    int id = item.getItemId();
    //noinspection SimplifiableIfStatement
    if (id == R.id.action_settings) {
        return true;
    }
    return super.onOptionsItemSelected(item);
}

}

4

1 回答 1

26

您正在为 使用四参数构造函数ActionBarDrawerToggle，这意味着您必须在的覆盖中调用切换的onOptionsItemSelected()方法才能打开/关闭抽屉。MainActivityonOptionsItemSelected()

例如：

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    if(mDrawerToggle.onOptionsItemSelected(item)) {
        return true;
    }

    return super.onOptionsItemSelected(item);
}

如果您碰巧提供了自己Toolbar的支持——例如，作为支持ActionBar（尽管没有必要这样设置）——那么您可以将其作为构造函数调用Toolbar中的第三个参数传递。ActionBarDrawerToggle例如：

Toolbar toolbar = findViewById(R.id.toolbar);
ActionBarDrawerToggle mDrawerToggle = new ActionBarDrawerToggle(this, drawerLayout,
        toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);

然后抽屉打开/关闭将由ActionBarDrawerToggle内部处理，您无需调用onOptionsItemSelected().

此setDisplayHomeAsUpEnabled()设置也不需要调用，如果您不想Toolbar将ActionBar.

于 2016-04-12T10:37:14.510 回答