#6 #39 第六次作业

AndroidLabs/app/src/main/java/edu/hzuapps/androidlabs/homeworks/net1409081602222/Net1409081602222MenuActivity.java

@@ -12,14 +12,15 @@ public class Net1409081602222MenuActivity extends AppCompatActivity {
 
     Button btBudget;
     Button btCertificate;
+	Button btJson;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_menu_net1409081602222);
         btBudget= (Button) findViewById(R.id.bt_to_apply_budget);
         btCertificate= (Button) findViewById(R.id.bt_to_apply_certificate);
-
+        btJson=(Button)findViewById(R.id.bt_json);
         btBudget.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
@@ -33,6 +34,12 @@ public void onClick(View v) {
             public void onClick(View v) {
                 startActivity(new Intent(Net1409081602222MenuActivity.this,Net1409081602222ApplyCertificateActivity.class));
             }
+        });
+		  btJson.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                startActivity(new Intent(Net1409081602222MenuActivity.this,Net1409081602222_JsonActivity.class));
+            }
         });
     }
 }

AndroidLabs/app/src/main/java/edu/hzuapps/androidlabs/homeworks/net1409081602222/Net1409081602222_JsonActivity.java

@@ -0,0 +1,72 @@
+package edu.hzuapps.androidlabs.homeworks.net1414080903110;
+
+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 Net1414080903110_AnalysisJsonActivity 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_net1409081602222json);
+        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/pengliangjun/android-labs-2017/master/AndroidLabs/app/src/main/java/edu/hzuapps/androidlabs/homeworks/net1409081602222/stu_info.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/net1409081602222/stu_info.json

@@ -0,0 +1,2 @@
+[{"grade":"14网络1班","name":"彭亮钧","number":"1409081602222"}]
+//requestWindowFeature(Window.FEATURE_NO_TITLE);  //去掉标题

AndroidLabs/app/src/main/res/layout/activity_menu_net1409081602222.xml

@@ -39,5 +39,16 @@
         android:text="申请安全证书"
         android:textSize="18sp"
         android:background="@color/colorPrimary"/>
+		<Button
+        android:id="@+id/bt_Json"
+        android:layout_marginLeft="50dp"
+        android:layout_marginRight="50dp"
+        android:layout_marginTop="25dp"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:textColor="#ffffff"
+        android:text="解析json"
+        android:textSize="18sp"
+        android:background="@color/colorPrimary"/>
 
 </LinearLayout>

AndroidLabs/app/src/main/res/layout/activity_net1409081602222_json.xml

@@ -0,0 +1,18 @@
+<?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_net1414080903137_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.homworks.net1414080903137.Net1414080903137JsonActivity">
+
+    <TextView
+        android:text=""
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:id="@+id/GithubResponse" />
+</RelativeLayout>