android仿QQ列表实现 android studio大作业，android studio课程设计-Toy模板网

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1. 效果图

android仿QQ列表实现 android studio大作业，android studio课程设计

文章来源地址https://www.toymoban.com/news/detail-513405.html

2.功能介绍：登录，注册，好友列表

3.核心代码

/**
 * 登录页面
 */
public class LoginActivity extends BaseActivity {
    private ActivityLoginBinding mBinding;

    @Override
    protected View getLayoutResId() {
        mBinding = ActivityLoginBinding.inflate(getLayoutInflater());
        return mBinding.getRoot();
    }

    @Override
    protected void initListener() {
        mBinding.register.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                startActivity(new Intent(mContext, RegisterActivity.class));
            }
        });

        mBinding.login.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                String username = mBinding.username.getText().toString();
                String password = mBinding.password.getText().toString();
                if (TextUtils.isEmpty(username) || TextUtils.isEmpty(password)) {
                    showToast("请完善信息");
                } else {
                    User user = new User();
                    user.setUsername(username);
                    user.setPassword(password);
                    user.login(new SaveListener<User>() {
                        @Override
                        public void done(User user, BmobException e) {
                            if (user != null) {
                                showToast("登录成功");
                                startActivity(new Intent(mContext, MainActivity.class));
                            } else {
                                showToast(e.getMessage());
                            }
                        }
                    });
                }
            }
        });

    }

    @Override
    protected void initData() {

    }
}

/**
 * 注册页面
 */
public class RegisterActivity extends BaseActivity {
    private ActivityRegisterBinding mBinding;

    @Override
    protected View getLayoutResId() {
        mBinding = ActivityRegisterBinding.inflate(getLayoutInflater());
        return mBinding.getRoot();
    }

    @Override
    protected void initListener() {

        mBinding.register.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                String username = mBinding.username.getText().toString();
                String password = mBinding.password.getText().toString();
                if (TextUtils.isEmpty(username) || TextUtils.isEmpty(password)) {
                    showToast("请完善信息");
                } else {
                    User user = new User();
                    user.setUsername(username);
                    user.setPassword(password);
                    user.signUp(new SaveListener<User>() {
                        @Override
                        public void done(User user, BmobException e) {
                            if (user != null) {
                                showToast("注册成功");
                                finish();
                            } else {
                                showToast(e.getMessage());
                            }
                        }
                    });

                }

            }
        });

    }

    @Override
    protected void initData() {

    }
}

/**
 * 好友列表页面
 */
public class MainActivity extends BaseActivity {

    private ActivityMainBinding mBinding;

    @Override
    protected View getLayoutResId() {
        mBinding = ActivityMainBinding.inflate(getLayoutInflater());
        return mBinding.getRoot();
    }

    @Override
    protected void initListener() {

    }

    @Override
    protected void initData() {

        mBinding.listview.setAdapter(new MyAdapter(this, ContactInfo.getContactInfoList()));

    }

    public static class MyAdapter extends BaseAdapter {
        private List<ContactInfo> list;
        private Context mContext;

        public MyAdapter(Context context, List<ContactInfo> contactInfos) {
            this.list = contactInfos;
            this.mContext = context;

        }

        @Override
        public int getCount() {
            return list.size();
        }

        @Override
        public Object getItem(int i) {
            return list.get(i);
        }

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

        @Override
        public View getView(int i, View view, ViewGroup viewGroup) {
            View rootView = LayoutInflater.from(mContext).inflate(R.layout.list_item, null);
            TextView username = rootView.findViewById(R.id.username);
            TextView content = rootView.findViewById(R.id.content);
            username.setText(list.get(i).getUsername());
            content.setText(list.get(i).getContent());
            return rootView;
        }
    }
}