17023139 许林凯 95

app/build.gradle

@@ -21,12 +21,13 @@ android {
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
     implementation 'com.android.support:appcompat-v7:28.0.0'
+    implementation 'com.android.support:recyclerview-v7:28.0.0'
+    implementation 'com.github.bumptech.glide:glide:4.8.0'
+    annotationProcessor 'com.github.bumptech.glide:compiler:4.8.0'
     implementation 'com.android.support.constraint:constraint-layout:1.1.3'
     implementation 'com.google.code.gson:gson:2.8.5'
-    implementation 'com.github.bumptech.glide:glide:4.5.0'
-    annotationProcessor 'com.github.bumptech.glide:compiler:4.5.0'
-    implementation  'com.android.support:recyclerview-v7:28.0.0'
     testImplementation 'junit:junit:4.12'
     androidTestImplementation 'com.android.support.test:runner:1.0.2'
     androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
+    implementation 'com.android.support:design:28.0.0'
 }

app/src/main/AndroidManifest.xml

@@ -11,6 +11,9 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
+        <activity android:name=".activity.DetailActivity"></activity>
+        <activity android:name=".Adapter.Useradapter" />
+        <activity android:name=".Adapter.UserAdapter" />
         <activity android:name=".MainActivity">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />

app/src/main/java/com/nd/frt/recentconversation/MainActivity.java

@@ -1,28 +1,69 @@
 package com.nd.frt.recentconversation;
 
+import android.content.Intent;
 import android.os.Bundle;
+import android.support.annotation.Nullable;
 import android.support.v7.app.AppCompatActivity;
 import android.support.v7.widget.LinearLayoutManager;
 import android.support.v7.widget.RecyclerView;
+import android.view.Menu;
+import android.view.MenuItem;
 
-import com.nd.frt.recentconversation.adapter.UserAdapter;
+import com.nd.frt.recentconversation.activity.DetailActivity;
+import com.nd.frt.recentconversation.adapter.UsersAdapter;
 import com.nd.frt.recentconversation.model.UserInfo;
 import com.nd.frt.recentconversation.service.UserInfoService;
 
 import java.util.List;
 
 public class MainActivity extends AppCompatActivity {
 
+    private RecyclerView.Adapter userAdapter;
+    private UsersAdapter mUserAdapter;
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
         UserInfoService userInfoService = new UserInfoService();
         List<UserInfo> userInfos = userInfoService.getUserInfos(this);
-        UserAdapter userAdapter = new UserAdapter(userInfos);
-        RecyclerView recyclerView = (RecyclerView) findViewById(R.id.rvRecyclerView);
-        recyclerView.setLayoutManager(new LinearLayoutManager(this, LinearLayoutManager.VERTICAL, false));
-        recyclerView.setAdapter(userAdapter);
+        RecyclerView recy_list = findViewById(R.id.recy_list);
+        recy_list.setLayoutManager(new LinearLayoutManager(this, LinearLayoutManager.VERTICAL,false));
+        mUserAdapter = new UsersAdapter(userInfos);
+        recy_list.setAdapter(mUserAdapter);
+    }
+
+    @Override
+    public boolean onCreateOptionsMenu(Menu menu) {
+        getMenuInflater().inflate(R.menu.menu_main, menu);
+        return true;
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        if (item.getItemId()==R.id.menu_add){
+            UserInfo userInfo = new UserInfo();
+            userInfo.userName = "wushimian";
+            userInfo.content = "767441080@qq.com";
+            userInfo.avatarUrl = "https://randomuser.me/api/portraits/men/18.jpg";
+            mUserAdapter.add(userInfo);
+            return  true;
+        }
+        return super.onOptionsItemSelected(item);
     }
 
+
+    @Override
+    protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
+        super.onActivityResult(requestCode, resultCode, data);
+        if (resultCode == RESULT_OK){
+            if (data != null) {
+                UserInfo userInfo = (UserInfo) data.getSerializableExtra(DetailActivity.PARAM_USER_INFO);
+                int index =  data.getIntExtra(DetailActivity.PARAM_USER_INDEX,0);
+                mUserAdapter.edit(index,userInfo);
+            }
+        }
+    }
 }
+
+

app/src/main/java/com/nd/frt/recentconversation/activity/Actvity.java

@@ -0,0 +1,4 @@
+package com.nd.frt.recentconversation.activity;
+
+class Actvity {
+}

app/src/main/java/com/nd/frt/recentconversation/activity/DetailActivity.java

@@ -0,0 +1,70 @@
+package com.nd.frt.recentconversation.activity;
+
+import android.app.Activity;
+import android.content.Intent;
+import android.os.Bundle;
+import android.support.v7.app.ActionBar;
+import android.support.v7.app.AppCompatActivity;
+import android.view.MenuItem;
+import android.view.View;
+import android.widget.EditText;
+import android.widget.ImageView;
+
+import com.bumptech.glide.Glide;
+import com.nd.frt.recentconversation.R;
+import com.nd.frt.recentconversation.model.UserInfo;
+
+public class DetailActivity extends AppCompatActivity {
+    public static final String PARAM_USER_INFO = " user_info";
+    public static final String PARAM_USER_INDEX = "user_index";
+    public UserInfo mUserInfo;
+    private int mUserIndex;
+
+    public static void start(Activity context, int index, UserInfo userInfo,int requestCode) {
+         Intent starter = new Intent(context, DetailActivity.class);
+         starter.putExtra(PARAM_USER_INFO,userInfo);
+         starter.putExtra(PARAM_USER_INDEX,index);
+         context.startActivityForResult(starter,requestCode);
+     }
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_detail);
+        ActionBar supportActionBar = getSupportActionBar();
+        assert supportActionBar != null;
+        supportActionBar.setDisplayHomeAsUpEnabled(true);
+        final Intent intent = getIntent();
+        mUserInfo = ((UserInfo) intent.getSerializableExtra(PARAM_USER_INFO));
+        mUserIndex =  intent.getIntExtra(PARAM_USER_INDEX,0);
+
+        supportActionBar.setTitle(mUserInfo.userName);
+        supportActionBar.setSubtitle(mUserInfo.content);
+        final EditText etUserName = findViewById(R.id.etUserName);
+        ImageView ivAvatar = findViewById(R.id.ivAvatar);
+        Glide.with(this)
+                .load(mUserInfo.avatarUrl)
+                .into(ivAvatar);
+        findViewById(R.id.btnOk).setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                mUserInfo.userName = etUserName.getText().toString();
+                Intent intentResult = new Intent();
+                intentResult.putExtra(PARAM_USER_INFO, mUserInfo);
+                intentResult.putExtra(PARAM_USER_INDEX, mUserIndex );
+                setResult(RESULT_OK,intentResult);
+                finish();
+            }
+        });
+
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+         if (item.getItemId()==android.R.id.home){
+             finish();
+             return  true;
+         }
+        return super.onOptionsItemSelected(item);
+    }
+}

app/src/main/java/com/nd/frt/recentconversation/adapter/UsersAdapter.java

@@ -0,0 +1,66 @@
+package com.nd.frt.recentconversation.adapter;
+
+import android.app.Activity;
+import android.support.annotation.NonNull;
+import android.support.v7.widget.RecyclerView;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import com.bumptech.glide.Glide;
+import com.nd.frt.recentconversation.R;
+import com.nd.frt.recentconversation.activity.DetailActivity;
+import com.nd.frt.recentconversation.model.UserInfo;
+import com.nd.frt.recentconversation.viewholder.UserViewHolder;
+
+import java.util.List;
+
+public class UsersAdapter extends RecyclerView.Adapter<UserViewHolder> {
+
+    private List<UserInfo> mUserInfos;
+    private int REQUEST_EDIT_USER_INFO = 0x1001;
+
+    public UsersAdapter(List<UserInfo>userInfos) {
+        mUserInfos = userInfos;
+    }
+
+    @NonNull
+    @Override
+    public UserViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {
+        LayoutInflater layoutInflater = LayoutInflater.from(viewGroup.getContext());
+        View itemView = layoutInflater.inflate(R.layout.item_user, viewGroup, false);
+        return new UserViewHolder(itemView);
+    }
+
+    @Override
+    public void onBindViewHolder(@NonNull UserViewHolder userViewHolder, final int position) {
+        final UserInfo userInfo =  mUserInfos.get(position);
+        Glide.with(userViewHolder.itemView.getContext())
+                .load(userInfo.avatarUrl)
+                .into(userViewHolder.mIvatar);
+        userViewHolder.mtvUserName.setText(userInfo.userName);
+        userViewHolder.mtvEmail.setText(userInfo.content);
+        userViewHolder.itemView.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                DetailActivity.start((Activity) v.getContext(),position,userInfo,REQUEST_EDIT_USER_INFO);
+            }
+        });
+
+    }
+
+    @Override
+    public int getItemCount() {
+        return mUserInfos.size();
+    }
+
+    public void add(UserInfo userInfo){
+        mUserInfos.add(userInfo);
+        notifyDataSetChanged();
+    }
+
+    public void  edit(int index,UserInfo userInfo){
+        mUserInfos.set(index,userInfo);
+        notifyDataSetChanged();
+    }
+}

app/src/main/java/com/nd/frt/recentconversation/model/UserInfo.java

@@ -1,6 +1,8 @@
 package com.nd.frt.recentconversation.model;
 
-public class UserInfo {
+import java.io.Serializable;
+
+public class UserInfo implements Serializable {
 
     public String avatarUrl;
     public String userName;

app/src/main/java/com/nd/frt/recentconversation/viewholder/UserViewHolder.java

@@ -10,14 +10,16 @@
 
 public class UserViewHolder extends RecyclerView.ViewHolder {
 
-    public final ImageView mIvAvatar;
-    public final TextView mTvUserName;
-    public final TextView mTvEmail;
+    public final ImageView mIvatar;
+    public final TextView mtvUserName;
+    public final TextView mtvEmail;
 
     public UserViewHolder(@NonNull View itemView) {
         super(itemView);
-        mIvAvatar = itemView.findViewById(R.id.ivAvatar);
-        mTvUserName = itemView.findViewById(R.id.tvUserName);
-        mTvEmail = itemView.findViewById(R.id.tvEmail);
+        mIvatar = itemView.findViewById(R.id.ivAvatar);
+        mtvUserName = itemView.findViewById(R.id.tvUserName);
+        mtvEmail = itemView.findViewById(R.id.tvEmail);
+
     }
+
 }

app/src/main/res/drawable-anydpi/ic_add_name.xml

@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24"
+    android:tint="#FFFFFF">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M19,13h-6v6h-2v-6H5v-2h6V5h2v6h6v2z"/>
+</vector>

app/src/main/res/layout/activity_detail.xml

@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical"
+    android:gravity="center_horizontal"
+    tools:context=".activity.DetailActivity">
+
+    <ImageView
+        android:contentDescription="@string/avatar"
+        android:id="@+id/ivAvatar"
+        android:layout_width="96dp"
+        android:layout_height="96dp" />
+
+    <EditText
+        android:id="@+id/etUserName"
+        android:hint="@string/username"
+        android:layout_width="match_parent"
+        android:inputType="text"
+        android:layout_marginTop="10dp"
+        android:layout_height="wrap_content"
+        tools:ignore="Autofill" />
+
+    <Button
+        android:id="@+id/btnOk"
+        android:text="@android:string/ok"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content" />
+</LinearLayout>