侧拉框

<?xml version="1.0" encoding="utf-8"?> <android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:app="http://schemas.android.com/apk/res-auto"     xmlns:tools="http://schemas.android.com/tools"     android:id="@+id/drawer_layout"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:fitsSystemWindows="true"     tools:openDrawer="start">     <LinearLayout         android:layout_width="match_parent"         android:layout_height="match_parent"         android:orientation="vertical">         <TextView            android:id="@+id/maint_title"             android:layout_width="match_parent"             android:layout_height="50dp"             android:background="#F00"             android:gravity="center"             android:text="标题" />         <TextView             android:gravity="center"             android:id="@+id/content"             android:layout_width="match_parent"             android:layout_height="match_parent"             android:text="内容" />     </LinearLayout>     <ListView         android:id="@+id/main_listview"         android:layout_width="240dp"         android:layout_height="match_parent"         android:layout_gravity="start"         android:background="#0f0"></ListView>

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

/-------------------------------------------------------------------------------------------------------------------------------/

public class MainActivity extends AppCompatActivity implements DrawerLayout.DrawerListener{    private static final String TAG = "MainActivity---";    private String[] names = new String[]{"baby", "尼古拉斯-赵四", "赵丽颖", "张三"};    private ListView listView;    private DrawerLayout drawerLayout;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        List<String> strings = Arrays.asList(names);        listView = findViewById(R.id.main_listview);        listView.setAdapter(new MyAdapter());        final TextView content = findViewById(R.id.content);        drawerLayout = findViewById(R.id.drawer_layout);        drawerLayout.setDrawerListener(this);        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {            @Override            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {                content.setText(names[position]);                //让侧滑菜单收回去                drawerLayout.closeDrawers();            }        });    }    //当侧滑菜单滑动的时候调用    @Override    public void onDrawerSlide(@NonNull View drawerView, float slideOffset) {    }    //当侧滑菜单打开的时候    @Override    public void onDrawerOpened(@NonNull View drawerView) {        Toast.makeText(MainActivity.this,"打开",Toast.LENGTH_SHORT).show();    }    //当侧滑菜单关闭的时候    @Override    public void onDrawerClosed(@NonNull View drawerView) {        BitmapFactory.Options o=new BitmapFactory.Options();        o.inSampleSize=2;        Toast.makeText(MainActivity.this,"关闭",Toast.LENGTH_SHORT).show();    }    //当侧滑菜单状态改变的时候    @Override    public void onDrawerStateChanged(int newState) {        Log.d(TAG, "onDrawerStateChanged: "+newState);    }    class MyAdapter extends BaseAdapter {        @Override        public int getCount() {            return names.length;        }        @Override        public Object getItem(int position) {            return null;        }        @Override        public long getItemId(int position) {            return 0;        }        @Override        public View getView(int position, View convertView, ViewGroup parent) {            TextView textView = new TextView(MainActivity.this);            textView.setTextSize(25);            textView.setText(names[position]);            return textView;        }    }}