简单的侧拉

来源：互联网发布：软件低通滤波算法编辑：程序博客网时间：2024/04/28 22:16

public class MainActivity extends AppCompatActivity {
    private ListView listView;
    private ListView listView2;
    private DrawerLayout drawerLayout;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        //显示的侧滑菜单布局；
        listView = (ListView) findViewById(R.id.menu_list);
        listView2 = (ListView) findViewById(R.id.menu_listright);
        //根布局，侧拉菜单
        drawerLayout = (DrawerLayout) findViewById(R.id.drawer);
        //主界面添加fragment；
        getSupportFragmentManager().beginTransaction().replace(R.id.mycontent, new MainFragment()).commit();
        list = Arrays.asList(new String[]{"好友动态", "我的话题", "收藏", "活动"});
        listView.setAdapter(new MyAdapter());
        listView2.setAdapter(new MyAdapter());
        //监听菜单滑动状态的改变；
    drawerLayout.addDrawerListener(new DrawerLayout.DrawerListener() {
        @Override
        public void onDrawerSlide(View drawerView, float slideOffset) {
            //正在滑出；slideOffset代表菜单滑出的比例，全部滑出时为1；，全部滑动消失，为0；
            System.out.println("onDrawerSlide=="+slideOffset);
        }

        @Override
        public void onDrawerOpened(View drawerView) {
            //解决点击事件穿透冲突；
            drawerView.setClickable(true);
            System.out.println("onDrawerOpened");
            //菜单彻底打开（滑出）
        }

        @Override
        public void onDrawerClosed(View drawerView) {
            System.out.println("onDrawerClosed");
            //全部滑出屏幕
        }

        @Override
        public void onDrawerStateChanged(int newState) {
            System.out.println("onDrawerStateChanged");
        }
    });

        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                Toast.makeText(MainActivity.this,"ttttttt",Toast.LENGTH_LONG).show();
                //点击菜单条目，关闭当前菜单；参数为菜单显示的view；
                drawerLayout.closeDrawer(listView);
                //打开菜单；
                drawerLayout.openDrawer(listView2);
            }
        });

}

List<String> list;

    class MyAdapter extends BaseAdapter {
        @Override
        public int getCount() {
            return list.size();
        }

        @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) {
            convertView = View.inflate(MainActivity.this, R.layout.item, null);
            TextView textView = (TextView) convertView.findViewById(R.id.my_text);
            textView.setText(list.get(position));
            return convertView;
        }
    }

}

public class MainFragment extends Fragment {
    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
       View view=inflater.inflate(R.layout.fragment_layout,null);
        final Button btn=(Button)view.findViewById(R.id.fragment_text);
        btn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                btn.setText("更改了文本");
            }
        });
        return view;
    }
}

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