相关疑难解决方法(0)

我正在研究Android的导航抽屉.根据我的要求,我要在导航抽屉中显示gridview和项目列表视图.我在布局xml文件中创建了一个linearLayout,并将两个小部件(Grid视图和Listview)放在LinearLayout中.

当我运行该文件时,我收到以下错误:

java.lang.RuntimeException:无法启动活动ComponentInfo {com.example.navigationdrawer3/com.example.navigationdrawer3.MainActivity}:java.lang.ClassCastException:android.widget.FrameLayout $ LayoutParams无法强制转换为android.support.v4. widget.DrawerLayout $的LayoutParams

下面是我的java,logcat和NavigationDrawer布局文件:

MainActivity.java

public class MainActivity extends Activity {

     private DrawerLayout mDrawerLayout;
        private ListView mDrawerList;
        private ActionBarDrawerToggle mDrawerToggle;

        private CharSequence mDrawerTitle;
        //@SuppressWarnings("unused")
        private CharSequence mTitle;
        private String[] mGalaxyTitles;

        private GridView mDrawerGrid;

        private LinearLayout mDrawerLinear;

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

        mTitle = mDrawerTitle = getTitle();
        mGalaxyTitles = getResources().getStringArray(R.array.items_array);
        mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
        mDrawerList = (ListView) findViewById(R.id.left_drawer);

        mDrawerGrid = (GridView)findViewById(R.id.gridview);

        mDrawerLinear =(LinearLayout)findViewById(R.id.linearLayout);

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

        mDrawerGrid.setAdapter(new ImageAdapter(MainActivity.this));

        mDrawerList.setAdapter(new ArrayAdapter<String>(this,
                R.layout.drawer_list_item, mGalaxyTitles));

        mDrawerList.setOnItemClickListener(new DrawerItemClickListener()); …

嗨,我正在使用android.我已经成功地将web导航抽屉添加到我的应用程序中.现在我想在图像中添加个人资料图片视图.我在列表项中尝试过它.但是我想要更多的空间,就像在图像中一样......我怎么能这样做？请帮帮我,我是android新手

这是我的列表项代码

        mTitle = mDrawerTitle = getTitle();

    // load slide menu items
    navMenuTitles = getResources().getStringArray(R.array.nav_drawer_items);

    // nav drawer icons from resources
    navMenuIcons = getResources()
            .obtainTypedArray(R.array.nav_drawer_icons);

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

    navDrawerItems = new ArrayList<NavDrawerItem>();

    // adding nav drawer items to array
    // Home
    navDrawerItems.add(new NavDrawerItem(navMenuTitles[0], navMenuIcons.getResourceId(0, -1)));
    navDrawerItems.add(new NavDrawerItem(navMenuTitles[1], navMenuIcons.getResourceId(1, -1)));
    // Find People
    navDrawerItems.add(new NavDrawerItem(navMenuTitles[2], navMenuIcons.getResourceId(2, -1)));
    // Photos
    navDrawerItems.add(new NavDrawerItem(navMenuTitles[3], navMenuIcons.getResourceId(3, -1)));
    // Communities, Will add a counter here
    navDrawerItems.add(new NavDrawerItem(navMenuTitles[4], navMenuIcons.getResourceId(4, -1), true, "22")); …

我一直在尝试在DrawerLayout中设置一个EditText框,但仔细阅读Android培训网站,他们解释说DrawerLayout只允许有两个子视图.如果我想做下一个代码,我应该如何处理它？

<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">
<!-- The main content view -->
<FrameLayout
    android:id="@+id/content_frame"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />
<!-- The navigation drawer -->
<EditText
    android:id="@+id/EditText01"
    android:layout_width="240dp"
    android:layout_height="match_parent"
    android:hint="Search" >
</EditText>
<ListView android:id="@+id/left_drawer"
    android:layout_width="240dp"
    android:layout_height="match_parent"
    android:layout_gravity="start"
    android:choiceMode="singleChoice"
    android:divider="@android:color/transparent"
    android:dividerHeight="0dp"
    android:background="#111"/>
</android.support.v4.widget.DrawerLayout>