活動和片段操作欄中標題的居中對齊

Question

我的HomeActivity由“滑動菜單”組成，其中“滑動菜單”中的每個選項都會打開一個新標題不同的片段。 我希望片段操作欄中的標題顯示在中心，我嘗試對片段使用自定義布局，

 final ActionBar ab = getActivity().getActionBar();

        ab.setHomeButtonEnabled(true);
        ab.setDisplayHomeAsUpEnabled(true);
        ab.setDisplayShowTitleEnabled(false);
       // actionBar.setDisplayShowHomeEnabled(false);
        ab.setCustomView(R.layout.action_bar);
        ab.setDisplayShowCustomEnabled(true);

actionbar.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <TextView
        android:id="@+id/title"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:layout_centerVertical="true"
        android:fontFamily="sans-serif"
        android:maxLines="1"
        android:text="title"

        android:textSize="20sp"
        android:gravity="center"/>

</RelativeLayout>

這將標題居中對齊，但滑動菜單消失了。我希望我的所有片段在動作欄中心顯示的標題和滑動菜單都不會消失。這是清單，styles.xml，activity和片段之一的代碼，也是家庭活動的xml文件。

表現

 <activity
            android:name=".ui.slidingmenu.Home"
            android:label="@string/app_name"
            android:theme="@style/MyTheme">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

Styles.xml

<style name="MyTheme" parent="@android:style/Theme.Holo.Light">
    <item name="android:actionBarStyle">@style/MyActionBar</item>
    <item name="android:actionBarTabStyle">@style/MyTheme.ActionBar.TabView</item>
    <item name="android:actionBarTabTextStyle">@style/MyTheme.ActionBar.TabText</item>
<style name="MyActionBar" parent="@android:style/Widget.Holo.Light.ActionBar">
        <item name="android:windowFullscreen">true</item>
        <item name="android:windowContentOverlay">@null</item>
        <item name="android:background">#12ABEE</item>
        <item name="android:gravity">center</item>
        <item name="android:actionMenuTextColor">#ffffff</item>
        <item name="android:titleTextStyle">@style/myTheme.ActionBar.Text</item>
    </style>
 <style name="myTheme.ActionBar.Text" parent="@android:style/TextAppearance">
        <item name="android:textColor">#ffffff</item>
        <item name="android:textStyle">bold</item>
        <item name="android:gravity">center</item>

    </style>

家庭活動

public class Home extends FragmentActivity {
    private DrawerLayout mDrawerLayout;
    private ListView mDrawerList;
    private ActionBarDrawerToggle mDrawerToggle;
    private CharSequence mDrawerTitle, mTitle;
    private String[] navMenuTitles;
    private TypedArray navMenuIcons;
    private ArrayList<NavDrawerItem> navDrawerItems;
    private NavDrawerListAdapter adapter;
    private String mName, mProfileimage;
    private LinearLayout linearLayout;
    private TextView nameTextView;
    private ImageView profileImageView;

    public static Bitmap getRoundedCornerBitmap(Bitmap bitmap) {
        Bitmap output = Bitmap.createBitmap(bitmap.getWidth(),
                bitmap.getHeight(), Bitmap.Config.ARGB_8888);
        Canvas canvas = new Canvas(output);

        final int color = 0xff424242;
        final Paint paint = new Paint();
        final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
        final RectF rectF = new RectF(rect);
        final float roundPx = 40;

        paint.setAntiAlias(true);
        canvas.drawARGB(0, 0, 0, 0);
        paint.setColor(color);
        canvas.drawRoundRect(rectF, roundPx, roundPx, paint);

        paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
        canvas.drawBitmap(bitmap, rect, rect, paint);

        return output;
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.slidermenu);
        StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
        StrictMode.setThreadPolicy(policy);
        mTitle = mDrawerTitle = getTitle();

        navMenuTitles = getResources().getStringArray(R.array.nav_drawer_items);
        navMenuIcons = getResources().obtainTypedArray(R.array.nav_drawer_icons);

        linearLayout = (LinearLayout) findViewById(R.id.left_drawer_view);
        mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
        mDrawerList = (ListView) findViewById(R.id.list_slidermenu);

        nameTextView = (TextView) findViewById(R.id.username);
        profileImageView = (ImageView) findViewById(R.id.drawer_profile_image);
        navDrawerItems = new ArrayList<NavDrawerItem>();

        SharedPreferences app_preferences = PreferenceManager.getDefaultSharedPreferences(Home.this);

        mName = app_preferences.getString("name", "null");
        mProfileimage = app_preferences.getString("profileimage", "null");

        nameTextView.setText(mName);

        try {
            URL url = new URL(mProfileimage);
            Bitmap lProfileBitmap = BitmapFactory.decodeStream(url.openConnection().getInputStream());
            lProfileBitmap = getRoundedCornerBitmap(lProfileBitmap);
            BitmapDrawable lProfileDrawable = new BitmapDrawable(lProfileBitmap);
            profileImageView.setBackgroundDrawable(lProfileDrawable);
        } catch (Exception e) {
            Log.d("error in image", e.toString());
        }
        navDrawerItems.add(new NavDrawerItem(navMenuTitles[0], navMenuIcons.getResourceId(0, -1)));
        navDrawerItems.add(new NavDrawerItem(navMenuTitles[1], navMenuIcons.getResourceId(1, -1)));
        navDrawerItems.add(new NavDrawerItem(navMenuTitles[2], navMenuIcons.getResourceId(2, -1)));
        navDrawerItems.add(new NavDrawerItem(navMenuTitles[3], navMenuIcons.getResourceId(3, -1)));
        navDrawerItems.add(new NavDrawerItem(navMenuTitles[4], navMenuIcons.getResourceId(4, -1)));
        navDrawerItems.add(new NavDrawerItem(navMenuTitles[5], navMenuIcons.getResourceId(5, -1)));
        navDrawerItems.add(new NavDrawerItem(navMenuTitles[6], navMenuIcons.getResourceId(6, -1)));
        navDrawerItems.add(new NavDrawerItem(navMenuTitles[7], navMenuIcons.getResourceId(7, -1)));
        navDrawerItems.add(new NavDrawerItem(navMenuTitles[8], navMenuIcons.getResourceId(8, -1)));
        navDrawerItems.add(new NavDrawerItem(navMenuTitles[9], navMenuIcons.getResourceId(9, -1)));
        navDrawerItems.add(new NavDrawerItem(navMenuTitles[10], navMenuIcons.getResourceId(10, -1)));
        navDrawerItems.add(new NavDrawerItem(navMenuTitles[11], navMenuIcons.getResourceId(11, -1)));

        navMenuIcons.recycle();

        mDrawerList.setOnItemClickListener(new SlideMenuClickListener());

        adapter = new NavDrawerListAdapter(getApplicationContext(), navDrawerItems);
        mDrawerList.setAdapter(adapter);

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

        mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,
                R.drawable.ic_drawer,
                R.string.app_name,
                R.string.app_name
        ) {
            public void onDrawerClosed(View view) {
                getActionBar().setTitle(mTitle);
                invalidateOptionsMenu();
            }

            public void onDrawerOpened(View drawerView) {
                getActionBar().setTitle(mDrawerTitle);
                invalidateOptionsMenu();
            }
        };
        mDrawerLayout.setDrawerListener(mDrawerToggle);


        if (savedInstanceState == null) {
            displayView(0);
        }
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        MenuInflater inflater = getMenuInflater();
        inflater.inflate(R.menu.main, menu);
        return super.onCreateOptionsMenu(menu);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // toggle nav drawer on selecting action bar app icon/title
        if (mDrawerToggle.onOptionsItemSelected(item)) {
            return true;
        }
        switch (item.getItemId()) {
            case R.id.action_settings:
                return true;
            default:
                return super.onOptionsItemSelected(item);
        }
    }

    @Override
    public boolean onPrepareOptionsMenu(Menu menu) {

        boolean drawerOpen = mDrawerLayout.isDrawerOpen(this.linearLayout);
        menu.findItem(R.id.action_settings).setVisible(!drawerOpen);
        return super.onPrepareOptionsMenu(menu);
    }


    private void displayView(int position) {
        // update the main content by replacing fragments
        Fragment fragment = null;
        switch (position) {
            case 0:
                fragment = new HF();
                break;
            case 1:
                fragment = new NF();
                break;
            case 2:
                fragment = new FD();
                break;
            case 3:
                fragment = new FDFD();
                break;
            case 4:
                fragment = new VideosFragment();
                break;
            case 5:
                fragment = new DG();
                break;
            case 6:
                fragment = new DSF();
                break;
            case 7:
                fragment = new FDSF();
                break;
            case 8:
                fragment = new DFSD();
                break;
            case 9:
                fragment = new DFSF();
                break;
            default:
                break;
        }

        if (fragment != null) {
            FragmentManager fragmentManager = getFragmentManager();
            fragmentManager.beginTransaction()
                    .replace(R.id.frame_container, fragment).commit();

            mDrawerList.setItemChecked(position, true);
            mDrawerList.setSelection(position);
            setTitle(navMenuTitles[position]);
            mDrawerLayout.closeDrawer(this.linearLayout);
        } else {
            // error in creating fragment
            Log.e("MainActivity", "Error in creating fragment");
        }
    }

    @Override
    public void setTitle(CharSequence title) {
        mTitle = title;
        getActionBar().setTitle(mTitle);
    }


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

        mDrawerToggle.syncState();
    }

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

        mDrawerToggle.onConfigurationChanged(newConfig);
    }

    private class SlideMenuClickListener implements
            ListView.OnItemClickListener {
        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position,
                                long id) {
            displayView(position);
        }
    }

}

視頻片段

public class VideosFragment extends Fragment {
    private static final int CAMERA_CAPTURE_VIDEO_REQUEST_CODE = 200;
    ActionBar actionBar;
    private int countClick;
    private FragmentActivity myContext;
    private ViewPager viewPager;


    private String[] tabs = {"All Teams Videos", "Player Videos", "My Team Videos"};

    public VideosFragment() {
    }

    @Override
    public void onAttach(Activity activity) {
        myContext = (FragmentActivity) activity;
        super.onAttach(activity);
    }

    public void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        setHasOptionsMenu(true);
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {

        View rootView = inflater.inflate(R.layout.videos, container, false);

        actionBar = getActivity().getActionBar();
        actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_STANDARD);

        return rootView;
    }


    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle item selection
        switch (item.getItemId()) {
            case R.id.action_search2:

                Intent i = new Intent();
                i.setClass(myContext, LS.class);
                startActivity(i);
                return true;

            default:
                return super.onOptionsItemSelected(item);
        }

    }

}

slidemenu.xml

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


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

    <LinearLayout
        android:id="@+id/left_drawer_view"
        android:layout_width="240dp"
        android:layout_height="match_parent"
        android:layout_gravity="start"
        android:background="@drawable/bgmenu"
        android:orientation="vertical">

        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="10dp"
            android:layout_weight="0">


            <ImageView
                android:id="@+id/drawer_profile_background"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_centerHorizontal="true"
                android:scaleType="centerCrop"
                android:src="@drawable/profileblock">

            </ImageView>

            <ImageView
                android:id="@+id/drawer_profile_image"
                android:layout_width="wrap_content"
                android:layout_height="80dp"
                android:layout_alignLeft="@+id/drawer_profile_background"
                android:layout_alignRight="@+id/drawer_profile_background"
                android:layout_centerHorizontal="true"
                android:layout_marginLeft="4dp"
                android:layout_marginRight="4dp"
                android:layout_marginTop="4dp"
                android:scaleType="centerCrop"></ImageView>

            <ImageView
                android:id="@+id/settingicon"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_alignBottom="@+id/drawer_profile_background"
                android:layout_marginLeft="-15dp"
                android:layout_toRightOf="@+id/drawer_profile_background"
                android:background="@drawable/settings" />

            <TextView
                android:id="@+id/username"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_below="@+id/drawer_profile_background"
                android:layout_centerHorizontal="true"
                android:layout_marginTop="5dp"
                android:text="Name"
                android:textAppearance="?android:attr/textAppearanceListItemSmall"
                android:textColor="@android:color/white"></TextView>


        </RelativeLayout>


        <ListView
            android:id="@+id/list_slidermenu"
            android:layout_width="match_parent"
            android:layout_height="0dp"
            android:layout_gravity="start"
            android:layout_marginTop="2dp"
            android:layout_weight="4"
            android:choiceMode="singleChoice"
            android:divider="@android:color/transparent"
            android:dividerHeight="2dp"
            android:listSelector="@drawable/menuselector" />

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

Answer 1

嘗試將以下內容添加到自定義ActionBar布局的TextView ，以使文本居中。

android:layout_gravity="center"

另外，要解釋一下，當您設置gravity="center" ，它將文本居於TextView布局中。

接下來，由於自定義布局與導航抽屜的圖標（側面菜單）重疊，因此圖標被隱藏。 要解決此問題，最簡單的方法是為整個布局設置邊距（在您的情況下，是自定義操作欄布局的相對布局）。 我認為30dp應該足以覆蓋所有屏幕尺寸。

android:layout_marginRight="30dp"