#8 #555 第8次实验

students/soft1714080902402/dazuoye/app/src/main/AndroidManifest.xml

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.example.myapplication">
+
+    <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="edu.hzuapps.androidlabs.MainActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>

students/soft1714080902402/dazuoye/app/src/main/java/edu/hzuapps/androidlabs/MainActivity.java

@@ -0,0 +1,241 @@
+package edu.hzuapps.androidlabs;
+
+/*import android.app.Activity;
+import android.view.View;
+import android.widget.ImageView;
+import android.widget.TextView;
+
+public class MainActivity extends Activity {
+
+    int[] imageIds=new int[]{R.drawable.shoe_ok,R.drawable.shoe_sorry,R.drawable.shoe_sorry};//定义一个保存全部图片的ID的数组
+    private ImageView image1;           //ImageView组件1
+    private ImageView image2;           //ImageView组件2
+    private ImageView image3;           //ImageView组件3
+    private TextView result;            //显示结果
+    private void reset(){
+        for(int i=0;i<3;i++)
+        {
+            int temp=imageIds[i];
+            int index=(int)(Math.random()*2);
+            imageIds[i]=imageIds[index];
+            imageIds[index]=temp;
+        }
+    }
+    image1=(ImageView)findViewById(R.id.imageView1);
+    image2=(ImageView)findViewById(R.id.imageView2);
+    image3=(ImageView)findViewById(R.id.imageView3);
+
+
+    image1.setOnClickListener(new View.OnClickListener()){
+        @Override
+                public void onClick(View v){
+            isRight(v,0);
+        }
+    }
+
+}*/
+
+
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.Message;
+import android.support.v4.content.ContextCompat;
+import android.support.v7.app.AppCompatActivity;
+import android.text.TextUtils;
+import android.view.View;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.ImageView;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import com.example.myapplication.R;
+
+import java.io.InputStream;
+import java.net.HttpURLConnection;
+import java.net.URL;
+
+
+public class MainActivity extends AppCompatActivity implements View.OnClickListener {
+    private TextView text;
+    private ImageView pic0;
+    private ImageView pic1;
+    private ImageView pic2;
+    int[] imageIds = new int[]{R.drawable.shoe_ok, R.drawable.shoe_sorry,
+            R.drawable.shoe_sorry};
+
+
+
+
+    /*网络编程*/
+
+
+    protected static final int CHANGE_UI = 1;
+    protected static final int ERROR = 2;
+    private EditText et_path;
+    private ImageView iv;
+    //主线程创建消息处理器
+    private Handler handler = new Handler() {
+        public void handleMessage(android.os.Message msg) {
+            if (msg.what == CHANGE_UI) {
+                Bitmap bitmap = (Bitmap) msg.obj;
+                iv.setImageBitmap(bitmap);
+            } else if (msg.what == ERROR) {
+                Toast.makeText(MainActivity.this, "显示图片错误", Toast.LENGTH_SHORT).show();
+            }
+        }
+    };
+
+
+    /**/
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+        pic0 = (ImageView) findViewById(R.id.pic0);
+        pic1 = (ImageView) findViewById(R.id.pic1);
+        pic2 = (ImageView) findViewById(R.id.pic2);
+        Button butplay = (Button) findViewById(R.id.butplay);
+        text = (TextView) findViewById(R.id.text);
+        pic0.setOnClickListener(this);
+        pic1.setOnClickListener(this);
+        pic2.setOnClickListener(this);
+        butplay.setOnClickListener(this);
+        replay();//开局先将鞋子顺序打乱
+
+
+            /*网络编程*/
+
+
+        et_path = (EditText) findViewById(R.id.et_path);
+        iv = (ImageView) findViewById(R.id.iv);
+
+
+
+
+    }
+
+    @Override
+    public void onClick(View view) {
+        switch (view.getId()) {
+            case R.id.pic0:
+                //设置已打乱顺序的鞋子图片
+                pic0.setImageDrawable(ContextCompat.getDrawable(MainActivity.this, imageIds[0]));
+                pic1.setImageDrawable(ContextCompat.getDrawable(MainActivity.this, imageIds[1]));
+                pic2.setImageDrawable(ContextCompat.getDrawable(MainActivity.this, imageIds[2]));
+                if (imageIds[0] == R.drawable.shoe_ok) {
+                    //判断是否猜中有鸡蛋的鞋子
+                    text.setText("恭喜你，猜对了，祝你幸福！");
+                } else
+                    text.setText("很抱歉，猜错了，要不要再试一次？");
+                break;
+
+            case R.id.pic1:
+                pic0.setImageDrawable(ContextCompat.getDrawable(MainActivity.this, imageIds[0]));
+                pic1.setImageDrawable(ContextCompat.getDrawable(MainActivity.this, imageIds[1]));
+                pic2.setImageDrawable(ContextCompat.getDrawable(MainActivity.this, imageIds[2]));
+                if (imageIds[1] == R.drawable.shoe_ok) {
+                    text.setText("恭喜你，猜对了，祝你幸福！");
+                } else
+                    text.setText("很抱歉，猜错了，要不要再试一次？");
+                break;
+
+            case R.id.pic2:
+                pic0.setImageDrawable(ContextCompat.getDrawable(MainActivity.this, imageIds[0]));
+                pic1.setImageDrawable(ContextCompat.getDrawable(MainActivity.this, imageIds[1]));
+                pic2.setImageDrawable(ContextCompat.getDrawable(MainActivity.this, imageIds[2]));
+                if (imageIds[2] == R.drawable.shoe_ok) {
+                    text.setText("恭喜你，猜对了，祝你幸福！");
+                } else
+                    text.setText("很抱歉，猜错了，要不要再试一次？");
+                break;
+
+            case R.id.butplay:
+                replay();
+
+            default:
+                break;
+        }
+
+
+
+        /**/
+
+
+        final String path = et_path.getText().toString().trim();
+        if (TextUtils.isEmpty(path)) {
+            Toast.makeText(this, "图片路径不能为空", Toast.LENGTH_SHORT).show();
+        } else {
+            //子线程请求网络，Android 4.0以后访问网络不能放在主线程中
+            new Thread() {
+                private HttpURLConnection conn;
+                private Bitmap bitmap;
+                public void run() {
+                    //连接服务器get请求，获取图片
+                    try {
+                        //创建URL对象
+                        URL url = new URL(path);
+                        //根据url发送http的请求
+                        conn = (HttpURLConnection) url.openConnection();
+                        //设置请求的方式
+                        conn.setRequestMethod("GET");
+                        //设置超时时间
+                        conn.setConnectTimeout(5000);
+                        //设置请求头User-Agent浏览器的版本
+                        conn.setRequestProperty("User-Agent", "Mozilla/4.0(compatible;MSIE 6.0;Windows NT 5.1;" + "SV1;.NET4.0C;.NET4.0E;.NET CLR 2.0.50727;" + ".NET CLR 3.0.4506.2152;.NET CLR 3.5.30729;Shuame)");
+                        //得到服务器返回的响应码
+                        int code = conn.getResponseCode();
+                        //请求网络成功后返回码是200
+                        if (code == 200) {
+                            //获取输入流
+                            InputStream is = conn.getInputStream();
+                            //将流转换成Bitmap对象
+                            bitmap = BitmapFactory.decodeStream(is);
+                            //TODO: 告诉主线程一个消息：帮我更改界面，内容：bitmap
+                            Message msg = new Message();
+                            msg.what = CHANGE_UI;
+                            msg.obj = bitmap;
+                            handler.sendMessage(msg);
+                        } else {
+                            //返回码不是200，请求服务器失败
+                            Message msg = new Message();
+                            msg.what = ERROR;
+                            handler.sendMessage(msg);
+                        }
+                    } catch (Exception e) {
+                        e.printStackTrace();
+                        Message msg = new Message();
+                        msg.what = ERROR;
+                        handler.sendMessage(msg);
+                    }
+                }
+            }.start();
+        }
+
+    }
+
+    public void replay() {
+        //点击再玩一次，恢复原有标题和鞋子图片
+        text.setText("猜猜鸡蛋在哪只鞋子里？");
+        pic0.setImageDrawable(ContextCompat.getDrawable(MainActivity.this, R.drawable.shoe_default));
+        pic1.setImageDrawable(ContextCompat.getDrawable(MainActivity.this, R.drawable.shoe_default));
+        pic2.setImageDrawable(ContextCompat.getDrawable(MainActivity.this, R.drawable.shoe_default));
+
+        for (int i = 0; i < 3; i++) {
+            int temp = imageIds[i]; // 将数组元素i保存到临时变量中
+            int index = (int) (Math.random() * 2); // 生成一个随机数
+            imageIds[i] = imageIds[index]; // 将随机数指定的数组元素的内容赋给数组元素i
+            imageIds[index] = temp; // 将临时变量的值赋值给随机数组指定的那个数组元素
+        }
+    }
+
+
+
+
+    /**/
+
+
+}