android - 我需要在 slider 菜单中显示背景颜色白色

Question

我正在使用 NavigationDrawerItemsAdapter 监听器来显示 slider 菜单中的选项，当选项较少时它显示一半为透明度我想显示白色背景作为设备的高度。

    public class BaseNavigationDrawerActivity extends BaseActivity implements



        // for getting Left Navigation drawerImages

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

            mContext = BaseNavigationDrawerActivity.this;
            mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
            mDrawersList = (ListView) findViewById(R.id.lv_left_drawer);

            LayoutInflater inflater = this.getLayoutInflater();

            // adding listview header
            View header = inflater.inflate(R.layout.leftnav_headerview, null);
            mDrawersList.addHeaderView(header);
            mProfileView = (ImageView) header.findViewById(R.id.img_profile);
            mProfileUserName = (TextView) header.findViewById(R.id.tv_username);
            // set a custom shadow that overlays the main content when the drawer
            // opens
            ShowLogoutOption();

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

            mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,
                    R.drawable.ic_apphistory_menu, R.string.drawer_open,
                    R.string.drawer_close) {
                @Override
                public void onDrawerClosed(View drawerView) {
                    supportInvalidateOptionsMenu();
                }

                @Override
                public void onDrawerOpened(View drawerView) {
                    supportInvalidateOptionsMenu();
                }
            };

            mNavigationDrawerAdapter = new NavigationDrawerItemsAdapter();
            mDrawersList.setAdapter(mNavigationDrawerAdapter);
            mDrawerLayout.setDrawerListener(mDrawerToggle);
            mProfileUserName.setEnabled(false);
            mDrawersList.setOnItemClickListener(new DrawerItemClickListener());
            mProfileView.setOnClickListener(this);
            initActionBar("",false);
        }

        @Override
        protected void onResume() {
            super.onResume();

            mNavigationDrawerAdapter.notifyDataSetChanged();
        }



        @Override
        protected void onPostCreate(Bundle savedInstanceState) {
            super.onPostCreate(savedInstanceState);
            // Sync the toggle state after onRestoreInstanceState has occurred.
            mDrawerToggle.syncState();
        }

        @Override
        public void onConfigurationChanged(Configuration newConfig) {
            super.onConfigurationChanged(newConfig);
            // Pass any configuration change to the drawer toggls
            mDrawerToggle.onConfigurationChanged(newConfig);
        }

        private class DrawerItemClickListener implements OnItemClickListener {
            @Override
            public void onItemClick(AdapterView<?> parent, View v, int position,
                    long arg3) {
                mDrawersList.setChoiceMode(ListView.CHOICE_MODE_SINGLE);



            }


        }

        @Override
        public boolean onCreateOptionsMenu(Menu menu) {
            return super.onCreateOptionsMenu(menu);
        }

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

        protected void replaceFragment(Fragment fragment) {
            FragmentManager fragmentManager = getSupportFragmentManager();
            fragmentManager.beginTransaction()
                    .replace(R.id.content_frame, fragment).commit();
        }

        /**
         * This class used to update data to LeftNavigationDrawer
         * 
         * @author nvanamala
         * 
         */
        private class NavigationDrawerItemsAdapter extends BaseAdapter {
            private ImageView mLeftNavigationImage;
            private TextView mLeftNavigationText;

            @Override
            public int getCount() {
                return mLeftNavigationDrawerItems.length > 0 ? mLeftNavigationDrawerItems.length
                        : 0;
            }

            @Override
            public Object getItem(int position) {
                return position;
            }

            @Override
            public long getItemId(int position) {
                return position;
            }

            @Override
            public View getView(final int position, View convertView, ViewGroup parent) {


                if (convertView == null) {
                    LayoutInflater inflater = (LayoutInflater) mContext
                            .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
                    convertView = inflater.inflate(R.layout.left_navigation_row,
                            null, false);
                }
                mLeftNavigationText = (TextView) convertView.findViewById(R.id.tv_left_nav_title);
                mLeftNavigationImage = (ImageView) convertView.findViewById(R.id.img_left_nav);

                mLeftNavigationText.setText(mLeftNavigationDrawerItems[position]);

                // If the position is RewardPoints then add the points to reward point
                    if (mLeftNavigationText.getText().toString().trim().equalsIgnoreCase(mRewardPoints)) {


                }

                }

                convertView.setOnClickListener(new OnClickListener() {

                    @Override
                    public void onClick(View v) {

                        String item = mLeftNavigationDrawerItems[position];

                        selectItem(item);
                    }
                });

    //          mLeftNavMenuImages.recycle();
                return convertView;
            }

        }



    }
![enter image description here][1]


  [1]: http://i.stack.imgur.com/iSXRR.png

Answer 1

将 findViewById(R.id.lv_left_drawer); 设置为 xml 中的 FILL_PARENT 或 MATCH_PARENT。如果是linearlayout或者relativelayout，里面有listview，那么设置main view，root view的背景色为白色

使用

@android:color/white