Merge pull request #2227 from xiaozzcc/master

第六次实验

Soft1614080902415/java/Soft1614080902415Activity3.java

@@ -0,0 +1,38 @@
+package edu.hzuapps.androidlabs.soft1614080902415;
+
+import android.os.Bundle;
+import android.support.v7.app.AppCompatActivity;
+import android.view.View;
+import android.widget.Button;
+import android.widget.EditText;
+import android.content.SharedPreferences;
+import android.content.Context;
+import android.content.Intent;
+public class Soft1614080902415Acitvity3 extends AppCompatActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.acitivity_soft1614080902415_03);
+        final EditText editText=(EditText)findViewById(R.id.editText);
+        //获取控件
+        Button btnLogin=(Button)findViewById(R.id.button0);
+        // Button buttonque=(Button)findViewById(R.id.queding);
+        //final EditText EdPassword=(EditText) findViewById(R.id.edit_text);
+        final EditText EdUserName=(EditText)findViewById(R.id.editText);
+
+        btnLogin.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                SharedPreferences sharedPreferences = getSharedPreferences("jnc", Context.MODE_PRIVATE);//创建SharedPreferences对象
+                SharedPreferences.Editor editor = sharedPreferences.edit(); //需要获取SharedPreferences的编辑对象
+                editor.putString("username", editText.getText().toString()); //向preferences写入数据：
+                //editor.putString("Password", EdPassword.getText().toString());
+                editor.commit();// 向preferences文件中提交数据：
+                Intent intent=new Intent(Soft1614080902415Acitvity3.this,Soft1614080902415Activity4.class);
+                startActivity(intent);
+            }
+        } );
+    }
+
+}

Soft1614080902415/java/Soft1614080902415Activity4.java

@@ -0,0 +1,65 @@
+package edu.hzuapps.androidlabs.soft1614080902415;
+
+import android.os.Bundle;
+import android.support.v7.app.AppCompatActivity;
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.widget.ImageView;
+import android.widget.TextView;
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.URL;
+import java.net.URLConnection;
+
+public class Soft1614080902415Activity4 extends AppCompatActivity {
+
+    private ImageView imageView;
+    //»ñȡͼƬ
+    public Bitmap getPicture(String wu){
+        Bitmap yu=null;
+        try{
+            URL url=new URL(wu);
+            URLConnection connection=url.openConnection();
+            connection.connect();
+            InputStream inputStream=connection.getInputStream();
+            yu= BitmapFactory.decodeStream(inputStream);
+        } catch (java.net.MalformedURLException e) {
+            e.printStackTrace();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        return  yu;
+    }
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_soft1614080902415_04);
+        imageView = (ImageView) findViewById(R.id.image);
+        TextView txtUserName=(TextView) findViewById(R.id.textView3);
+        SharedPreferences sharedPreferences = getSharedPreferences("jnc", Context.MODE_PRIVATE);
+        final String userName=sharedPreferences.getString("username","");
+        txtUserName.setText(userName);
+        new Thread(new Runnable() {
+            @Override
+            public void run() {
+                final Bitmap bitmap=getPicture(userName);
+                //final Bitmap bitmap=getPicture("https://upload.chebaba.com/cms/article/05338129504020508.jpg");
+                try {
+                    Thread.sleep(1997);
+                } catch (InterruptedException e) {
+                    e.printStackTrace();
+                }
+
+                imageView.post(new Runnable() {
+                    @Override
+                    public void run() {
+                        imageView.setImageBitmap(bitmap);
+                    }
+                });
+            }
+        }).start();
+    }
+}

Soft1614080902415/layout/acitvity_soft1614080902415_01.xml

@@ -87,5 +87,19 @@
         android:textColor="#fff"
         android:layout_marginTop="10dp"
         />
+    <Button
+        android:id="@+id/btn_login5"
+        android:layout_width="match_parent"
+        android:layout_height="40dp"
+        android:layout_alignParentBottom="true"
+        android:layout_centerHorizontal="true"
+        android:layout_marginBottom="36dp"
+        android:background="@drawable/ic_launcher_background"
+        android:text="下载车辆相关信息"
+        android:textColor="#fff"
+        android:textSize="20sp" />
+
+</RelativeLayout>
+
 </RelativeLayout>
 </RelativeLayout>

Soft1614080902415/layout/activity_soft1614080902415_03.xml

@@ -0,0 +1,23 @@
+<?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">
+
+
+
+    <EditText
+        android:id="@+id/editText"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_weight="1"
+        android:ems="10"
+        android:inputType="textPersonName"
+        android:text="ÇëÊäÈëÏÂÔصØÖ·" />
+    <Button
+        android:id="@+id/button0"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_weight="1"
+        android:layout_below="@id/editText"
+        android:text="ÏÂÔØ" />
+</LinearLayout>

Soft1614080902415/layout/activity_soft1614080902415_04.xml

@@ -0,0 +1,34 @@
+<?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">
+
+
+    <ImageView
+        android:id="@+id/image"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_centerInParent="true"
+
+        >
+
+    </ImageView>
+
+    <TextView
+        android:id="@+id/textView2"
+        android:layout_below="@id/image"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="10sp"
+        android:layout_marginLeft="30sp"
+        android:text="ͼƬµØַΪ" />
+
+    <TextView
+        android:id="@+id/textView3"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="10sp"
+        android:layout_marginLeft="120sp"
+        android:layout_below="@id/textView2"
+        />
+</RelativeLayout>

Soft1614080902415/report6.md

@@ -0,0 +1,27 @@
+实验6：	Android网络编程
+
+ 一、实验内容
+
+1.从网络下载一个文件（图片、MP3、MP4）；
+
+2.保存到手机，在应用中使用文件；
+
+3.将应用运行结果截图。
+
+ 二、实验步骤
+
+ 1.acitvity_soft1614080902415_01添加一个租车信息下载按钮，并添加监听跳转到Soft1614080902415Acitvity3，并实现安卓软件的联网功能
+ 2.在Soft1614080902415Acitvity3输入下载连接，点击下载
+ 3.跳转到Soft1614080902415Acitvity4
+ 4.在Soft1614080902415Acitvity4实现接收网址并且从网上下载图片的功能。
+
+
+## 三、实验
+![image](https://raw.githubusercontent.com/xiaozzcc/android-labs-2018/master/Soft1614080902415//6.1.jpg)
+![image](https://raw.githubusercontent.com/xiaozzcc/android-labs-2018/master/Soft1614080902415//6.2.jpg)
+![image](https://raw.githubusercontent.com/xiaozzcc/android-labs-2018/master/Soft1614080902415//6.3.jpg)
+![image](https://raw.githubusercontent.com/xiaozzcc/android-labs-2018/master/Soft1614080902415//6.4.jpg)
+![image](https://raw.githubusercontent.com/xiaozzcc/android-labs-2018/master/Soft1614080902415//6.5.jpg)
+
+四、实验体会
+本次实验学会了安装软件的联网操作，从网络下载了一个文件保存到手机并使用