加入retrofit和rxjava，加载文章详情

ditclear · Nov 19, 2017 · efd77a8 · efd77a8
1 parent f5525fc
commit efd77a8
Show file tree

Hide file tree

Showing 11 changed files with 161 additions and 96 deletions.
diff --git a/app/build.gradle b/app/build.gradle
@@ -33,6 +33,15 @@ dependencies {
     compile "org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
     //data binding
     kapt "com.android.databinding:compiler:2.3.3"
+    //rx android
+    compile 'io.reactivex.rxjava2:rxandroid:2.0.1'
+    compile 'io.reactivex.rxjava2:rxjava:2.1.3'
+    compile 'com.trello.rxlifecycle2:rxlifecycle-components:2.2.0'
+    //retrofit
+    compile 'com.squareup.retrofit2:retrofit:2.3.0'
+    compile 'com.squareup.retrofit2:converter-gson:2.3.0'
+    compile 'com.squareup.retrofit2:adapter-rxjava2:2.3.0'
+    compile 'com.google.code.gson:gson:2.8.0'
 
     testCompile 'junit:junit:4.12'
     androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {

diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
@@ -1,15 +1,16 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
           package="io.ditclear.app">
-
+
+    <uses-permission android:name="android.permission.INTERNET"/>
     <application
             android:allowBackup="true"
             android:icon="@mipmap/ic_launcher"
             android:label="@string/app_name"
             android:roundIcon="@mipmap/ic_launcher_round"
             android:supportsRtl="true"
             android:theme="@style/AppTheme">
-        <activity android:name=".view.AnimalActivity">
+        <activity android:name=".view.PaoActivity">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN"/>
 

diff --git a/app/src/main/java/io/ditclear/app/model/Animal.kt b/app/src/main/java/io/ditclear/app/model/Animal.kt
diff --git a/app/src/main/java/io/ditclear/app/model/data/Article.kt b/app/src/main/java/io/ditclear/app/model/data/Article.kt
@@ -0,0 +1,26 @@
+package io.ditclear.app.model.data
+
+/**
+ * 页面描述：Article
+ *
+ * Created by ditclear on 2017/11/19.
+ */
+data class Article(
+        var id: Int = 0,
+        var title: String?,
+        var readme: String?,
+        var describe: String?,
+        var click: Int = 0,
+        var channel: Int = 0,
+        var comments: Int = 0,
+        var stow: Int = 0,
+        var upvote: Int = 0,
+        var downvote: Int = 0,
+        var url: String?,
+        var pubDate: String?,
+        var thumbnail: String?) {
+
+    var content: String? = null
+
+
+}
diff --git a/app/src/main/java/io/ditclear/app/model/remote/PaoService.kt b/app/src/main/java/io/ditclear/app/model/remote/PaoService.kt
@@ -0,0 +1,20 @@
+package io.ditclear.app.model.remote
+
+import io.ditclear.app.model.data.Article
+import io.reactivex.Single
+import retrofit2.http.GET
+import retrofit2.http.Query
+
+/**
+ * 页面描述：PaoService
+ *
+ * Created by ditclear on 2017/11/19.
+ */
+interface PaoService{
+    /**
+     * 文章详情
+     */
+    @GET("article_detail.php")
+    fun getArticleDetail(@Query("id") id: Int): Single<Article>
+
+}
diff --git a/app/src/main/java/io/ditclear/app/view/AnimalActivity.kt b/app/src/main/java/io/ditclear/app/view/AnimalActivity.kt
diff --git a/app/src/main/java/io/ditclear/app/view/PaoActivity.kt b/app/src/main/java/io/ditclear/app/view/PaoActivity.kt
@@ -0,0 +1,35 @@
+package io.ditclear.app.view
+
+import android.databinding.DataBindingUtil
+import android.os.Bundle
+import android.support.v7.app.AppCompatActivity
+import io.ditclear.app.R
+import io.ditclear.app.databinding.PaoActivityBinding
+import io.ditclear.app.model.remote.PaoService
+import io.ditclear.app.viewmodel.PaoViewModel
+import retrofit2.Retrofit
+import retrofit2.adapter.rxjava2.RxJava2CallAdapterFactory
+import retrofit2.converter.gson.GsonConverterFactory
+
+class PaoActivity : AppCompatActivity() {
+
+    lateinit var mBinding : PaoActivityBinding
+    lateinit var mViewMode : PaoViewModel
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        mBinding=DataBindingUtil.setContentView(this,R.layout.pao_activity)
+
+        //////model
+        val remote=Retrofit.Builder()
+                .baseUrl("http://api.jcodecraeer.com/")
+                .addCallAdapterFactory(RxJava2CallAdapterFactory.create())
+                .addConverterFactory(GsonConverterFactory.create())
+                .build().create(PaoService::class.java)
+
+        /////ViewModel
+        mViewMode= PaoViewModel(remote)
+        ////binding
+        mBinding.vm=mViewMode
+    }
+}
diff --git a/app/src/main/java/io/ditclear/app/viewmodel/AnimalViewModel.kt b/app/src/main/java/io/ditclear/app/viewmodel/AnimalViewModel.kt
diff --git a/app/src/main/java/io/ditclear/app/viewmodel/PaoViewModel.kt b/app/src/main/java/io/ditclear/app/viewmodel/PaoViewModel.kt
@@ -0,0 +1,31 @@
+package io.ditclear.app.viewmodel
+
+import android.databinding.ObservableField
+import io.ditclear.app.model.data.Article
+import io.ditclear.app.model.remote.PaoService
+import io.reactivex.android.schedulers.AndroidSchedulers
+import io.reactivex.schedulers.Schedulers
+
+/**
+ * 页面描述：PaoViewModel
+ * @param animal 数据源Model(MVVM 中的M),负责提供ViewModel中需要处理的数据
+ * Created by ditclear on 2017/11/17.
+ */
+class PaoViewModel(val remote: PaoService) {
+
+    //////////////////data//////////////
+    val articleDetail = ObservableField<String>("点击按钮，调用ViewModel中的loadArticle方法，通过DataBinding更新UI")
+
+    //////////////////binding//////////////
+    fun loadArticle() {
+        //为了简单起见这里先写个默认的id
+        remote.getArticleDetail(8773)
+                .subscribeOn(Schedulers.io())
+                .observeOn(AndroidSchedulers.mainThread())
+                .subscribe({ t: Article? ->
+                    articleDetail.set(t?.toString())
+                }, { t: Throwable? ->
+                    articleDetail.set(t?.message ?: "error")
+                })
+    }
+}
diff --git a/app/src/main/res/layout/animal_activity.xml b/app/src/main/res/layout/animal_activity.xml
diff --git a/app/src/main/res/layout/pao_activity.xml b/app/src/main/res/layout/pao_activity.xml
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layout xmlns:android="http://schemas.android.com/apk/res/android"
+        xmlns:tools="http://schemas.android.com/tools">
+
+    <data>
+        <!--需要的viewModel,通过mBinding.vm=mViewMode注入-->
+        <variable
+                name="vm"
+                type="io.ditclear.app.viewmodel.PaoViewModel"/>
+    </data>
+
+    <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:orientation="vertical"
+            tools:context="io.ditclear.app.view.PaoActivity">
+
+
+        <Button
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_gravity="center_horizontal"
+                android:layout_marginTop="24dp"
+                android:onClick="@{()->vm.loadArticle()}"
+                android:text="load article"
+                android:textAllCaps="false"/>
+
+
+        <TextView
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:gravity="center"
+                android:text="@{vm.articleDetail}"
+                tools:text="点击按钮，调用ViewModel中的loadArticle方法，通过DataBinding更新UI"/>
+
+    </LinearLayout>
+</layout>