Question

我是android新手。我想在我的应用程序中使用导航抽屉。这就是为什么我在创建新项目时采用导航抽屉活动而不是空白活动的原因。现在它到目前为止工作正常。但我想将箭头图标更改为标题栏左上角的另一个图像。我已经尝试了一些关于护目镜的例子，但没有结果。请有人帮我这个请!!!以下是我的代码和我想要更改的箭头图像＆gt;＆gt;＆gt;

箭头应更改＆gt;＆gt;＆gt;

我的主要活动＆gt;＆gt;＆gt;

$scope.onSlideChanged = function(item) {
    if (!item.loaded) {
        item.loaded = true;
        console.log("ITEM LOADED:", item);
    }
};

我的导航抽屉片段类＆gt;＆gt;＆gt;

    public class MainActivity extends ActionBarActivity
        implements NavigationDrawerFragment.NavigationDrawerCallbacks {

    private NavigationDrawerFragment mNavigationDrawerFragment;
    private CharSequence mTitle;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        mNavigationDrawerFragment = (NavigationDrawerFragment)
                getSupportFragmentManager().findFragmentById(R.id.navigation_drawer);
        mTitle = getTitle();

        // Set up the drawer.
        mNavigationDrawerFragment.setUp(
                R.id.navigation_drawer,
                (DrawerLayout) findViewById(R.id.drawer_layout));
    }

    @Override
    public void onNavigationDrawerItemSelected(int position) {
        Fragment objFragment = null;
        switch (position) {
            case 0:
                objFragment = new FragmentGoogle();
                break;
            case 1:
                objFragment = new FragmentYahoo();
                break;
            case 2:
                objFragment = new FragmentYoutube();
                break;
            case 3:
                objFragment = new FragmentFacebook();
                break;
        }
        FragmentManager fragmentManager = getSupportFragmentManager();
        fragmentManager.beginTransaction()
                .replace(R.id.container, objFragment)
                .commit();
    }

    public void onSectionAttached(int number) {
        switch (number) {
            case 0:
                mTitle = "Google";
                break;
            case 1:
                mTitle = "Yahoo";
                break;
            case 2:
                mTitle = "Youtube";
                break;
            case 3:
                mTitle = "Facebook";
                break;
        }
    }

    public void restoreActionBar() {
        ActionBar actionBar = getSupportActionBar();
        actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_STANDARD);
        actionBar.setDisplayShowTitleEnabled(true);
        actionBar.setTitle(mTitle);
    }


    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        if (!mNavigationDrawerFragment.isDrawerOpen()) {
            // Only show items in the action bar relevant to this screen
            // if the drawer is not showing. Otherwise, let the drawer
            // decide what to show in the action bar.
//            getMenuInflater().inflate(R.menu.main, menu);     // it's showing the right menu
            restoreActionBar();
            return true;
        }
        return super.onCreateOptionsMenu(menu);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        int id = item.getItemId();
        if (id == R.id.action_settings) {
            return true;
        }
        return super.onOptionsItemSelected(item);
    }

}

我的fragment_navigation_drawer.xml＆gt;＆gt;＆gt;

    public class NavigationDrawerFragment extends Fragment {

    Boolean isInternetPresent = false;
    ConnectionDetector cd;

    final String[] data ={"Google","Yahoo","Youtube", "Facebook"};
    final String[] fragments ={
            "com.example.user.navigationdrawertoggledemo.FragmentGoogle",
            "com.example.user.navigationdrawertoggledemo.FragmentYahoo",
            "com.example.user.navigationdrawertoggledemo.FragmentYoutube",
            "com.example.user.navigationdrawertoggledemo.FragmentFacebook"};

    private static final String STATE_SELECTED_POSITION = "selected_navigation_drawer_position";

    private static final String PREF_USER_LEARNED_DRAWER = "navigation_drawer_learned";

    private NavigationDrawerCallbacks mCallbacks;
    private ActionBarDrawerToggle mDrawerToggle;

    private DrawerLayout mDrawerLayout;
    private ListView mDrawerListView;
    private View mFragmentContainerView;

    private int mCurrentSelectedPosition = 0;
    private boolean mFromSavedInstanceState;
    private boolean mUserLearnedDrawer;

    public NavigationDrawerFragment() {
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(getActivity());
        mUserLearnedDrawer = sp.getBoolean(PREF_USER_LEARNED_DRAWER, false);

        if (savedInstanceState != null) {
            mCurrentSelectedPosition = savedInstanceState.getInt(STATE_SELECTED_POSITION);
            mFromSavedInstanceState = true;
        }
        selectItem(mCurrentSelectedPosition);
    }

    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
        setHasOptionsMenu(true);
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        mDrawerListView = (ListView) inflater.inflate(
                R.layout.fragment_navigation_drawer, container, false);
        mDrawerListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                ConnectivityManager connMgr = (ConnectivityManager) getActivity()
                        .getSystemService(Context.CONNECTIVITY_SERVICE);
                NetworkInfo networkInfo = connMgr.getActiveNetworkInfo();
                if (networkInfo != null && networkInfo.isConnected()) {
                    selectItem(position);
                } else {
                    showAlertDialog(getActivity(), "No Internet Connection",
                            "You don't have internet connection.", false);
                }
            }
        });

        ObjectDrawerItem[] drawerItem = new ObjectDrawerItem[fragments.length];
        drawerItem[0] = new ObjectDrawerItem(R.drawable.google, "Google");
        drawerItem[1] = new ObjectDrawerItem(R.drawable.yahoo, "Yahoo");
        drawerItem[2] = new ObjectDrawerItem(R.drawable.youtube, "Youtube");
        drawerItem[3] = new ObjectDrawerItem(R.drawable.facebook, "Facebook");

        DrawerItemCustomAdapter adapter = new DrawerItemCustomAdapter
                (getActivity(), R.layout.listview_item_row, drawerItem);
        mDrawerListView.setAdapter(adapter);
        mDrawerListView.setItemChecked(mCurrentSelectedPosition, true);
        return mDrawerListView;
    }

    public boolean isDrawerOpen() {
        return mDrawerLayout != null && mDrawerLayout.isDrawerOpen(mFragmentContainerView);
    }

    public void setUp(int fragmentId, DrawerLayout drawerLayout) {
        mFragmentContainerView = getActivity().findViewById(fragmentId);
        mDrawerLayout = drawerLayout;

        mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.START);

        ActionBar actionBar = getActionBar();
        actionBar.setDisplayHomeAsUpEnabled(true);
        actionBar.setHomeButtonEnabled(true);

        mDrawerToggle = new ActionBarDrawerToggle(
                getActivity(),                    /* host Activity */
                mDrawerLayout,                    /* DrawerLayout object */
                R.drawable.ic_drawer,             /* nav drawer image to replace 'Up' caret */
                R.string.navigation_drawer_open,  /* "open drawer" description for accessibility */
                R.string.navigation_drawer_close  /* "close drawer" description for accessibility */
        ) {
            @Override
            public void onDrawerClosed(View drawerView) {
                super.onDrawerClosed(drawerView);
                if (!isAdded()) {
                    return;
                }
                getActivity().supportInvalidateOptionsMenu(); // calls onPrepareOptionsMenu()
            }

            @Override
            public void onDrawerOpened(View drawerView) {
                super.onDrawerOpened(drawerView);
                if (!isAdded()) {
                    return;
                }

                if (!mUserLearnedDrawer) {
                    mUserLearnedDrawer = true;
                    SharedPreferences sp = PreferenceManager
                            .getDefaultSharedPreferences(getActivity());
                    sp.edit().putBoolean(PREF_USER_LEARNED_DRAWER, true).apply();
                }

                getActivity().supportInvalidateOptionsMenu(); // calls onPrepareOptionsMenu()
            }
        };

        if (!mUserLearnedDrawer && !mFromSavedInstanceState) {
            mDrawerLayout.openDrawer(mFragmentContainerView);
        }

        mDrawerLayout.post(new Runnable() {
            @Override
            public void run() {
                mDrawerToggle.syncState();
            }
        });

            mDrawerLayout.setDrawerListener(mDrawerToggle);
    }

    private void selectItem(int position) {
        mCurrentSelectedPosition = position;
        if (mDrawerListView != null) {
            mDrawerListView.setItemChecked(position, true);
        }
        if (mDrawerLayout != null) {
            mDrawerLayout.closeDrawer(mFragmentContainerView);
        }
        if (mCallbacks != null) {
            mCallbacks.onNavigationDrawerItemSelected(position);
        }
    }

    @Override
    public void onAttach(Activity activity) {
        super.onAttach(activity);
        try {
            mCallbacks = (NavigationDrawerCallbacks) activity;
        } catch (ClassCastException e) {
            throw new ClassCastException("Activity must implement NavigationDrawerCallbacks.");
        }
    }

    @Override
    public void onDetach() {
        super.onDetach();
        mCallbacks = null;
    }

    @Override
    public void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        outState.putInt(STATE_SELECTED_POSITION, mCurrentSelectedPosition);
    }

    @Override
    public void onConfigurationChanged(Configuration newConfig) {
        super.onConfigurationChanged(newConfig);
        mDrawerToggle.onConfigurationChanged(newConfig);
    }

    @Override
    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
        if (mDrawerLayout != null && isDrawerOpen()) {
//            inflater.inflate(R.menu.global, menu);        // it's showing the setting icon at right side of action bar
            showGlobalContextActionBar();
        }
        super.onCreateOptionsMenu(menu, inflater);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        if (mDrawerToggle.onOptionsItemSelected(item)) {
            return true;
        }
        if (item.getItemId() == R.id.action_example) {
            Toast.makeText(getActivity(), "Example action.", Toast.LENGTH_SHORT).show();
            return true;
        }
        return super.onOptionsItemSelected(item);
    }

    private void showGlobalContextActionBar() {
        ActionBar actionBar = getActionBar();
        actionBar.setDisplayShowTitleEnabled(true);
        actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_STANDARD);
        actionBar.setTitle(R.string.app_name);
    }

    private ActionBar getActionBar() {
        return ((ActionBarActivity) getActivity()).getSupportActionBar();
    }

    public static interface NavigationDrawerCallbacks {
        void onNavigationDrawerItemSelected(int position);
    }

    public void showAlertDialog(Context context, String title, String message, Boolean status) {
        AlertDialog alertDialog = new AlertDialog.Builder(context).create();
        alertDialog.setTitle(title);
        alertDialog.setMessage(message);
        alertDialog.setIcon((status) ? R.drawable.success : R.drawable.fail);
        alertDialog.setButton("OK", new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog, int which) {
            }
        });
        alertDialog.show();
    }
}

我的activity_main.xml＆gt;＆gt;＆gt;

<ListView
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:choiceMode="singleChoice"
android:divider="@android:color/transparent"
android:dividerHeight="0dp"
android:background="#cccc"
tools:context=".NavigationDrawerFragment" />

已编辑（添加清单）

    <android.support.v4.widget.DrawerLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/drawer_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <FrameLayout
        android:id="@+id/container"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

    <fragment
        android:id="@+id/navigation_drawer"
        android:layout_width="@dimen/navigation_drawer_width"
        android:layout_height="match_parent"
        android:layout_gravity="start"
        android:name="com.example.user.navigationdrawertoggledemo.NavigationDrawerFragment"
        tools:layout="@layout/fragment_navigation_drawer" />

</android.support.v4.widget.DrawerLayout>

Answer 1

只需添加此行：

 actionBar.setHomeAsUpIndicator(R.drawable.menuw_24);

Answer 2

以下是从创建Navigation Drawer

中获取的示例代码

主要活动

public void onCreate(Bundle savedInstanceState) {
    ... 

    mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
    mDrawerToggle = new ActionBarDrawerToggle(
            this,                  /* host Activity */ 
            mDrawerLayout,         /* DrawerLayout object */ 
            R.drawable.ic_drawer,  /* nav drawer icon to replace 'Up' caret */ 
            R.string.drawer_open,  /* "open drawer" description */ 
            R.string.drawer_close  /* "close drawer" description */ 
            ) { 

        /** Called when a drawer has settled in a completely closed state. */ 
        public void onDrawerClosed(View view) {
            super.onDrawerClosed(view);
            getActionBar().setTitle(mTitle);
        } 

        /** Called when a drawer has settled in a completely open state. */ 
        public void onDrawerOpened(View drawerView) {
            super.onDrawerOpened(drawerView);
            getActionBar().setTitle(mDrawerTitle);
        } 
    }; 

    // Set the drawer toggle as the DrawerListener 
    mDrawerLayout.setDrawerListener(mDrawerToggle);

    getActionBar().setDisplayHomeAsUpEnabled(true);
    getActionBar().setHomeButtonEnabled(true);
}

Answer 3

只需删除：

actionBar.setDisplayHomeAsUpEnabled(true);

并添加：

actionBar.setIcon(R.id.ic_...);

修改请继续阅读Toolbar

Answer 4

我找到了解决方案。只需一行!!哈...

将此添加到您的代码＆gt;＆gt;＆gt;

actionBar.setHomeAsUpIndicator(R.drawable.settings);  
actionBar.setDisplayHomeAsUpEnabled(true);

注意:: //设置是我的图像名称

我希望它能正常运作。

如何更改android导航抽屉中的标题箭头图标

4 个答案: