hzuapps#6 hzuapps#178 第六次作业

Author: mamingjian

AndroidLabs/app/src/main/java/edu/hzuapps/androidlabs/homeworks/net1414080903109/Net1414080903109MainActivity.java

@@ -19,6 +19,7 @@ protected void onCreate(Bundle savedInstanceState) {
         setContentView(R.layout.activity_net1414080903109_main);
         btAdd= (Button) findViewById(R.id.bt_to_add);
         btList= (Button) findViewById(R.id.bt_to_list);
+        btJson=(Button)findViewById(R.id.bt_to_json);
 
         /*点击按钮跳转到添加节日的界面*/
         btAdd.setOnClickListener(new View.OnClickListener() {
@@ -34,5 +35,12 @@ public void onClick(View v) {
                 startActivity(new Intent(Net1414080903109MainActivity.this,Net1414080903109ListActivity.class));
             }
         });
+        /*点击按钮跳转到解析Json文件结果界面*/
+        btJson.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                startActivity(new Intent(Net1414080903109MainActivity.this,Net1414080903109_ParseJsonActivity.class));
+            }
+        });
     }
 }

AndroidLabs/app/src/main/java/edu/hzuapps/androidlabs/homeworks/net1414080903109/Net1414080903109_ParseJsonActivity.java

@@ -0,0 +1,72 @@
+package edu.hzuapps.androidlabs.homeworks.net1414080903109;
+
+import android.os.Bundle;
+import android.os.Handler;
+import android.support.v7.app.AppCompatActivity;
+import android.widget.TextView;
+
+import org.json.JSONArray;
+import org.json.JSONObject;
+
+import edu.hzuapps.androidlabs.R;
+import okhttp3.OkHttpClient;
+import okhttp3.Request;
+import okhttp3.Response;
+
+/*抓取并解析json文件*/
+public class Net1414080903109_ParseJsonActivity extends AppCompatActivity {
+    private String grade;
+    private String name;
+    private String number;
+    private TextView GithubResponse;
+    private Handler handler = null;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_net1414080903110_analysis_json);
+        handler = new Handler();
+        GithubResponse = (TextView) findViewById(R.id.response_info);
+        sendRequest();
+    }
+
+    private void sendRequest() {
+        new Thread(){
+            @Override
+            public void run() {
+                try {
+                    OkHttpClient client = new OkHttpClient();
+                    Request request = new Request.Builder().url("https://raw.githubusercontent.com/mamingjian/android-labs-2017/master/AndroidLabs/app/src/main/java/edu/hzuapps/androidlabs/homeworks/net1414080903109/mamingjian.json").build();//目标地址
+                    Response response = client.newCall(request).execute();
+                    String responseData = response.body().string();
+                    AnalysisJson(responseData);
+                } catch (Exception e) {
+                    e.printStackTrace();
+                }
+                handler.post(runnableUi);
+            }
+        }.start();
+    }
+	
+    /*解析json文件*/
+    private void AnalysisJson(String jsonData) {
+        try {
+            JSONArray jsonArray = new JSONArray(jsonData);
+            for (int i = 0; i < jsonArray.length(); i++) {
+                JSONObject jsonObject = jsonArray.getJSONObject(i);
+                grade = jsonObject.getString("grade");
+                name = jsonObject.getString("name");
+                number = jsonObject.getString("number");
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+	
+/*更新UI*/
+    Runnable runnableUi = new Runnable() { 
+        public void run() {
+            GithubResponse.setText("班级: " + grade + "\n" + "\n" + "姓名: " + name + "\n" + "\n" + "学号: " + number + "\n" + "\n");//显示解析结果
+        }
+    };
+}

AndroidLabs/app/src/main/java/edu/hzuapps/androidlabs/homeworks/net1414080903109/mamingjian.json

@@ -0,0 +1 @@
+[{"grade":"14网络1班","name":"马明健","number":"1414080903109"}]

AndroidLabs/app/src/main/res/layout/activity_net1414080903109_main.xml

@@ -3,8 +3,7 @@
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:orientation="vertical">
-    
-   /*主界面*/
+
     <TextView
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
@@ -42,4 +41,14 @@
         android:background="@color/colorPrimary"
         android:text="查看节日"
         android:textColor="#ffffff" />
+<Button
+        android:id="@+id/bt_to_json"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginLeft="60dp"
+        android:layout_marginRight="60dp"
+        android:layout_marginTop="20dp"
+        android:background="@color/colorPrimary"
+        android:text="解析Json文件"
+        android:textColor="#ffffff" />
 </LinearLayout>

AndroidLabs/app/src/main/res/layout/activity_net1414080903109_parse_json.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/activity_net1414080903109__parse_json"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:paddingBottom="@dimen/activity_vertical_margin"
+    android:paddingLeft="@dimen/activity_horizontal_margin"
+    android:paddingRight="@dimen/activity_horizontal_margin"
+    android:paddingTop="@dimen/activity_vertical_margin"
+    tools:context="edu.hzuapps.androidlabs.homeworks.net1414080903109.Net1414080903109_ParseJsonActivity">
+
+	<!--显示解析结果-->
+        <TextView
+            android:id="@+id/response_info"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent" />
+
+</RelativeLayout>