Android studio课程计划开辟实现—日记APP
前言
你们好,我是oy,介绍一个浅易日记APP。
一、结果
1.启动页、引导页及登岸注册
2.日记相关功能
3.个人中心界面
二、功能介绍
1.重要功能
- 实现应用启动页及引导页
- 实现设置暗码进入APP,对暗码进行加密处理处罚
- 实现底部导航栏,分为日记列表,新建日记,个人中心模块
- 实现对日记删除、修改、新增的基础功能
- 实现圆形头像,通过相册及拍照并裁剪图片设置头像。可及时生存。
- 实现网络更新个人中心美图。
- 对暗码展示及关闭,跳转应用设置界面
- 动态获取拍照及相册访问权限
…
…
2.涉及知识点
- activity与fragment数据传递、页面更新、相互跳转。
- SharedPrefrenced存储、文件存储、文件加密。
- Android应用权限获取及设置
- 控件的使用:Button、EditText、AlertDialog、Imageview、ImageButton、viewPager2、Toolbar、RecycleView、NavigationButton等
- 布局的使用:LinearLayout、ConstraintLayout、RelativeLayout等
- 调用Android系统应用
- 自界说View:底部弹窗(比力复杂)、圆形头像
- Glide框架使用:网络加载图片
- Android框架:MVC
…
…
三、实现思路
- MainActivity中使用BottomNavigationView、ViewPager2、Toolbar实现。
- public class MainActivity extends AppCompatActivity {
- private BottomNavigationView bottomNavigationView;
- @Override
- protected void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.activity_main);
- initToolbar();
- initFragment();
- initNavigationBottom();
- }
- @SuppressLint("ResourceAsColor")
- private void initNavigationBottom() {
- bottomNavigationView = findViewById(R.id.navigation_bottom);
- bottomNavigationView.setItemIconTintList(null);
- bottomNavigationView.setOnNavigationItemSelectedListener(itemSelectedListener);
- }
- @Override
- public boolean onCreateOptionsMenu(Menu menu) {
- return super.onCreateOptionsMenu(menu);
- }
- private void initFragment() {
- DiariesFragment diariesFragment = getDiariesFragment();
- if (diariesFragment == null) {
- diariesFragment = new DiariesFragment();
- ActivityUtils.addFragmentToActivity(getSupportFragmentManager(), diariesFragment, R.id.content);
- }
- }
- private DiariesFragment getDiariesFragment() {
- return (DiariesFragment) getSupportFragmentManager().findFragmentById(R.id.content);
- }
- private void initToolbar() {
- //设置顶部状态栏为透明
- getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
- Toolbar toolbar = findViewById(R.id.toolbar);
- setSupportActionBar(toolbar);
- }
- private final BottomNavigationView.OnNavigationItemSelectedListener itemSelectedListener = item -> {
- switch (item.getItemId()) {
- case R.id.menu_diary:
- MeController.setToolbarVisibility(this);
- ActivityUtils.removeFragmentTOActivity(getSupportFragmentManager(), getSupportFragmentManager().findFragmentById(R.id.content));
- ActivityUtils.addFragmentToActivity(getSupportFragmentManager(), new DiariesFragment(), R.id.content);
- break;
- case R.id.menu_me:
- findViewById(R.id.toolbar).setVisibility(View.GONE);
- ActivityUtils.removeFragmentTOActivity(getSupportFragmentManager(), getSupportFragmentManager().findFragmentById(R.id.content));
- ActivityUtils.addFragmentToActivity(getSupportFragmentManager(), new MeFragment(), R.id.content);
- break;
- case R.id.menu_new:
- bottomNavigationView.setVisibility(View.GONE);
- MeController.setToolbarVisibility(this);
- ActivityUtils.removeFragmentTOActivity(getSupportFragmentManager(), getSupportFragmentManager().findFragmentById(R.id.content));
- ActivityUtils.addFragmentToActivity(getSupportFragmentManager(), new AddDiaryFragment(), R.id.content);
- break;
- }
- return true;
- };
- }
复制代码 MainActivity的layout
- <?xml version="1.0" encoding="utf-8"?>
- <LinearLayout
- 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:layout_width="match_parent"
- android:layout_height="match_parent"
- android:orientation="vertical"
- tools:context=".MainActivity">
- <com.google.android.material.appbar.AppBarLayout
- android:layout_width="match_parent"
- android:layout_height="wrap_content">
- <androidx.appcompat.widget.Toolbar
- android:id="@+id/toolbar"
- android:layout_width="match_parent"
- android:layout_height="wrap_content"
- android:background="?attr/colorPrimary"
- android:minHeight="?attr/actionBarSize"
- android:fitsSystemWindows="true"
- android:theme="@style/Widget.AppCompat.Toolbar"
- app:popupTheme="@style/ThemeOverlay.AppCompat.Light"/>
- </com.google.android.material.appbar.AppBarLayout>
- <FrameLayout
- android:id="@+id/content"
- android:layout_width="match_parent"
- android:layout_height="0dp"
- android:layout_weight="1"/>
- <com.google.android.material.bottomnavigation.BottomNavigationView
- android:id="@+id/navigation_bottom"
- android:layout_width="match_parent"
- android:layout_height="wrap_content"
- app:menu="@menu/menu_navigation"
- android:background="?android:attr/windowBackground"/>
- </LinearLayout>
复制代码
- ViewPager2中切换不同fragment,对应导航栏新增日记、个人中心及日记列表。
- public class DiariesFragment extends Fragment {
- private DiariesController mController;
- @Override
- public void onCreate(@Nullable Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- mController = new DiariesController(this);
- }
-
- @Nullable
- @Override
- public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
- View root = inflater.inflate(R.layout.fragment_diaries, container, false);
- mController.setDiariesList(root.findViewById(R.id.diaries_list));
- return root;
- }
- @Override
- public void onResume() {
- super.onResume();
- mController.loadDiaries();
- }
- }
复制代码 DiariesFragment的layout
- <?xml version="1.0" encoding="utf-8"?>
- <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
- android:layout_width="match_parent" android:layout_height="match_parent"
- android:orientation="vertical">
- <androidx.recyclerview.widget.RecyclerView
- android:id="@+id/diaries_list"
- android:layout_width="match_parent"
- android:layout_height="wrap_content"/>
- </RelativeLayout>
复制代码- public class AddDiaryFragment extends Fragment implements View.OnClickListener {
- private AddDiaryController mController;
- private View edit_layout;
- private Button btn_confirm;
- private EditText edit_title;
- private EditText edit_desc;
- @Override
- public void onCreate(@Nullable Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- mController = new AddDiaryController(this);
- }
- private void initView(View view) {
- btn_confirm = view.findViewById(R.id.add_diary_confirm);
- btn_confirm.setOnClickListener(this);
- edit_title = view.findViewById(R.id.edit_add_title);
- edit_desc = view.findViewById(R.id.edit_add_desc);
- edit_layout = view.findViewById(R.id.edit_layout);
- edit_layout.setOnClickListener(this);
- }
- @Override
- public void onCreateOptionsMenu(@NonNull Menu menu, @NonNull MenuInflater inflater) {
- inflater.inflate(R.menu.menu_cancel, menu);
- }
- @Override
- public boolean onOptionsItemSelected(@NonNull MenuItem item) {
- switch (item.getItemId()) {
- case R.id.menu_cancel:
- mController.closeWriteDiary(getActivity().getSupportFragmentManager(), this);
- mController.setNavigationVisibility();
- return true;
- }
- return false;
- }
- @Nullable
- @Override
- public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
- View root = inflater.inflate(R.layout.fragment_add_diary, container, false);
- initView(root);
- return root;
- }
- @Override
- public void onDestroy() {
- super.onDestroy();
- }
- @Override
- public void onClick(View view) {
- switch (view.getId()) {
- case R.id.add_diary_confirm:
- mController.addDiaryToRepository(edit_title.getText().toString().trim(), edit_desc.getText().toString().trim());
- mController.setNavigationVisibility();
- mController.closeWriteDiary(getActivity().getSupportFragmentManager(), this);
- break;
- case R.id.edit_layout:
- mController.changeFocus(edit_desc);
- break;
- }
- }
- }
复制代码 AddDiaryFragment的layout
- <?xml version="1.0" encoding="utf-8"?>
- <LinearLayout
- xmlns:android="http://schemas.android.com/apk/res/android"
- android:layout_width="match_parent"
- android:layout_height="match_parent"
- android:orientation="vertical">
- <LinearLayout
- android:layout_width="match_parent"
- android:layout_height="wrap_content"
- android:layout_marginTop="10dp"
- android:layout_marginStart="10dp"
- android:layout_marginEnd="10dp"
- android:orientation="vertical">
- <EditText
- android:id="@+id/edit_add_title"
- android:hint="@string/add_title_hint"
- android:minLines="1"
- android:layout_width="match_parent"
- android:layout_height="wrap_content" />
- </LinearLayout>
- <LinearLayout
- android:id="@+id/edit_layout"
- android:layout_width="match_parent"
- android:layout_height="0dp"
- android:layout_weight="1"
- android:layout_marginTop="5dp"
- android:layout_marginStart="10dp"
- android:layout_marginEnd="10dp"
- android:layout_marginBottom="10dp">
- <LinearLayout
- android:layout_width="match_parent"
- android:layout_height="match_parent"
- android:paddingStart="5dp"
- android:paddingTop="5dp"
- android:paddingEnd="5dp"
- android:paddingBottom="5dp"
- android:background="@drawable/edit_background">
- <EditText
- android:id="@+id/edit_add_desc"
- android:hint="@string/add_title_description"
- android:gravity="top"
- android:layout_width="match_parent"
- android:layout_height="wrap_content"
- android:scrollbars="vertical"
- android:background="@null"/>
- </LinearLayout>
- </LinearLayout>
- <LinearLayout
- android:layout_width="match_parent"
- android:layout_height="wrap_content"
- android:gravity="center"
- android:orientation="horizontal">
- <Button
- android:id="@+id/add_diary_confirm"
- android:text="@string/btn_ok"
- android:layout_width="wrap_content"
- android:layout_height="wrap_content"/>
- </LinearLayout>
- </LinearLayout>
复制代码
- 将应用暗码加密生存与文件中。每次登岸获取暗码并对比。
- public class LoginDirectActivity extends AppCompatActivity implements View.OnClickListener {
- private EditText edit_input_text;
- private Button btn_comeIn;
- private TextView tv_setPsw;
- private static final String TAG = "Login2Activity";
- @Override
- protected void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.activity_direct_login);
- bindView();
- }
- private void bindView() {
- getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
- edit_input_text = findViewById(R.id.edit_login2_input_text);
- btn_comeIn = findViewById(R.id.btn_login2_comeIn);
- btn_comeIn.setOnClickListener(this);
- tv_setPsw = findViewById(R.id.tv_setPsw);
- tv_setPsw.setOnClickListener(this);
- }
- @Override
- public void onClick(View v) {
- switch (v.getId()) {
- case R.id.tv_setPsw:
- Intent setPsw_intent = new Intent(LoginDirectActivity.this, LoginActivity.class);
- startActivity(setPsw_intent);
- LoginDirectActivity.this.finish();
- // overridePendingTransition(R.anim.out_to_left,R.anim.in_from_right);
- break;
- case R.id.btn_login2_comeIn:
- String psw = edit_input_text.getText().toString().trim();
- if (psw.isEmpty()) {
- Toast.makeText(this, "密码不能为空!", Toast.LENGTH_SHORT).show();
- return;
- }
- String readInfoByContext = FileUtils.readInfoByContext(this);
- if (psw.equals(readInfoByContext)) {
- Toast.makeText(this, "登录成功!", Toast.LENGTH_SHORT).show();
- Intent intent = new Intent(this, MainActivity.class);
- startActivity(intent);
- // overridePendingTransition(R.anim.out_to_left,R.anim.in_from_right);
- } else {
- Toast.makeText(this, "密码不正确!", Toast.LENGTH_SHORT).show();
- }
- break;
- }
- }
- }
复制代码 LoginDirectActivity 的layout
- <?xml version="1.0" encoding="utf-8"?>
- <androidx.constraintlayout.widget.ConstraintLayout 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:layout_width="match_parent"
- android:layout_height="match_parent"
- tools:context=".view.LoginDirectActivity">
- <Button
- android:id="@+id/btn_login2_comeIn"
- android:layout_width="match_parent"
- android:layout_height="wrap_content"
- android:layout_marginStart="40dp"
- android:layout_marginEnd="40dp"
- android:text="进入"
- app:layout_constraintBottom_toTopOf="@+id/guideline5"
- app:layout_constraintEnd_toEndOf="parent"
- app:layout_constraintStart_toStartOf="parent" />
- <LinearLayout
- android:id="@+id/linearLayout"
- android:layout_width="match_parent"
- android:layout_height="wrap_content"
- android:layout_marginStart="40dp"
- android:layout_marginEnd="40dp"
- android:gravity="center_vertical"
- android:orientation="horizontal"
- app:layout_constraintEnd_toEndOf="parent"
- app:layout_constraintStart_toStartOf="parent"
- app:layout_constraintTop_toTopOf="@+id/guideline7">
- <ImageView
- android:layout_width="32dp"
- android:layout_height="32dp"
- android:src="@mipmap/come_in_key" />
- <EditText
- android:id="@+id/edit_login2_input_text"
- android:hint="输入您的密码"
- android:inputType="textPassword"
- android:layout_width="match_parent"
- android:layout_height="wrap_content" />
- </LinearLayout>
- <androidx.constraintlayout.widget.Guideline
- android:id="@+id/guideline4"
- android:layout_width="wrap_content"
- android:layout_height="wrap_content"
- android:orientation="horizontal"
- app:layout_constraintGuide_percent="0.22" />
- <androidx.constraintlayout.widget.Guideline
- android:id="@+id/guideline5"
- android:layout_width="wrap_content"
- android:layout_height="wrap_content"
- android:orientation="horizontal"
- app:layout_constraintGuide_percent="0.58" />
- <TextView
- android:id="@+id/tv_login2_password_title"
- android:layout_width="match_parent"
- android:layout_height="wrap_content"
- android:gravity="center"
- android:text="输入密码"
- android:textSize="30sp"
- android:textStyle="bold"
- app:layout_constraintEnd_toEndOf="parent"
- app:layout_constraintStart_toStartOf="parent"
- app:layout_constraintTop_toTopOf="@+id/guideline4" />
- <androidx.constraintlayout.widget.Guideline
- android:id="@+id/guideline7"
- android:layout_width="wrap_content"
- android:layout_height="wrap_content"
- android:orientation="horizontal"
- app:layout_constraintGuide_percent="0.4" />
- <TextView
- android:id="@+id/tv_setPsw"
- android:layout_width="wrap_content"
- android:layout_height="wrap_content"
- android:text="设置密码"
- android:textStyle="bold"
- app:layout_constraintEnd_toEndOf="@+id/linearLayout"
- app:layout_constraintTop_toBottomOf="@+id/linearLayout" />
- </androidx.constraintlayout.widget.ConstraintLayout>
复制代码
- 使用SharedPrefrenced存储日记内容及标题。
- public final class SharedPreferencesUtils {
- private static final SimpleArrayMap<String, SharedPreferencesUtils> mCaches = new SimpleArrayMap<>();
- private SharedPreferences mSharedPreferences;
- private SharedPreferencesUtils(final String spName, final int mode) {
- mSharedPreferences = YyApplication.get().getSharedPreferences(spName, mode);
- }
- public static SharedPreferencesUtils getInstance(String spName) {
- SharedPreferencesUtils utils = mCaches.get(spName);
- if (utils == null) {
- utils = new SharedPreferencesUtils(spName, Context.MODE_PRIVATE);
- }
- return utils;
- }
- public void put(final String key, final String value) {
- mSharedPreferences.edit().putString(key, value).apply();
- }
- public String get(final String key) {
- return mSharedPreferences.getString(key, "");
- }
- public void remove(final String key) {
- mSharedPreferences.edit().remove(key).apply();
- }
- }
复制代码 下载链接
源码下载:https://pan.baidu.com/s/1bzSSuPrtlq1m5UG29TWvoQ
提取码:1111 (好像不需要)
总结
以上就是今天讲的内容,本文仅仅简单介绍了Android日记APP,需要把握上述知识点,能够较好的理解此应用逻辑。
免责声明:如果侵犯了您的权益,请联系站长,我们会及时删除侵权内容,谢谢合作!更多信息从访问主页:qidao123.com:ToB企服之家,中国第一个企服评测及商务社交产业平台。 |