Merge pull request #1853 from halolol/master

#8 #1707 第八次实验

students/com1714080901118/实验八/app/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.example.aishop">
+
+    <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
+    <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
+    <uses-permission android:name="android.permission.CHANGE_NETWORK_STATE" />
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+
+    <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=".PersonalActivity"
+            android:label="@string/title_activity_personal"
+            android:theme="@style/AppTheme.NoActionBar" />
+        <activity
+            android:name=".DetailActivity"
+            android:label="@string/title_activity_detail"
+            android:theme="@style/AppTheme.NoActionBar" />
+        <activity
+            android:name=".BookActivity"
+            android:label="@string/title_activity_book"
+            android:theme="@style/AppTheme.NoActionBar" />
+        <activity
+            android:name=".ShowActivity"
+            android:label="@string/title_activity_show"
+            android:theme="@style/AppTheme.NoActionBar" />
+        <activity android:name=".MainActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+
+        <provider
+            android:name="android.support.v4.content.FileProvider"
+            android:authorities="com.example.aishop"
+            android:exported="false"
+            android:grantUriPermissions="true">
+            <meta-data
+                android:name="android.support.FILE_PROVIDER_PATHS"
+                android:resource="@xml/file_paths" />
+        </provider>
+    </application>
+
+</manifest>

students/com1714080901118/实验八/app/src/main/java/edu/hzuapps/androidlabs/Com1714080901118/BookActivity.java

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+package com.example.aishop;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.support.design.widget.FloatingActionButton;
+import android.support.design.widget.Snackbar;
+import android.support.v7.app.AppCompatActivity;
+import android.support.v7.widget.Toolbar;
+import android.view.View;
+import android.widget.ImageView;
+
+public class BookActivity extends AppCompatActivity {
+
+    private ImageView imageView2;
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_book);
+        Toolbar toolbar = findViewById(R.id.toolbar);
+        imageView2=(ImageView)findViewById(R.id.book1);
+        imageView2.setOnClickListener(new View.OnClickListener() {
+            public void onClick(View v) {
+                Intent intent3=new Intent(BookActivity.this,DetailActivity.class);
+                startActivity(intent3); //do something
+            }
+        });
+        setSupportActionBar(toolbar);
+        FloatingActionButton fab = findViewById(R.id.fab);
+        fab.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
+                        .setAction("Action", null).show();
+            }
+        });
+    }
+
+}

students/com1714080901118/实验八/app/src/main/java/edu/hzuapps/androidlabs/Com1714080901118/DetailActivity.java

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+package com.example.aishop;
+
+import android.annotation.SuppressLint;
+import android.content.Context;
+import android.os.Bundle;
+import android.support.design.widget.FloatingActionButton;
+import android.support.design.widget.Snackbar;
+import android.support.v7.app.AppCompatActivity;
+import android.support.v7.widget.Toolbar;
+import android.view.View;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.Toast;
+
+import java.io.FileOutputStream;
+
+public class DetailActivity extends AppCompatActivity {
+
+    private EditText et_count;
+    private Button btn_save;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_detail);
+        Toolbar toolbar = findViewById(R.id.toolbar);
+        setSupportActionBar(toolbar);
+        et_count = (EditText) findViewById(R.id.et_count);
+        btn_save = (Button) findViewById(R.id.btn_save);
+        btn_save.setOnClickListener(new ButtonListener());
+        FloatingActionButton fab = findViewById(R.id.fab);
+        fab.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
+                        .setAction("Action", null).show();
+            }
+        });
+    }
+
+    private class ButtonListener implements View.OnClickListener {
+        @SuppressLint("WrongConstant")
+        public void onClick(View v) {
+            switch (v.getId()) {
+                case R.id.btn_save:
+                    String saveinfo = et_count.getText().toString().trim();
+                    FileOutputStream fos;
+                    try {
+                        fos = openFileOutput("data.txt", Context.MODE_APPEND);
+                        fos.write(saveinfo.getBytes());
+                        fos.close();
+                    } catch (Exception e) {
+                        e.printStackTrace();
+                    }
+                    Toast.makeText(DetailActivity.this, "添加成功", 0).show();
+                    break;
+                default:
+                    break;
+            }
+        }
+    }
+
+}

students/com1714080901118/实验八/app/src/main/java/edu/hzuapps/androidlabs/Com1714080901118/MainActivity.java

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+package com.example.aishop;
+
+import android.content.Intent;
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.graphics.drawable.BitmapDrawable;
+import android.os.Build;
+import android.os.Handler;
+import android.os.Message;
+import android.support.annotation.RequiresApi;
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.Button;
+import android.widget.LinearLayout;
+
+import java.io.InputStream;
+import java.net.HttpURLConnection;
+import java.net.URL;
+
+public class MainActivity extends AppCompatActivity {
+    private Button personal;
+    private Button cbj;
+    private LinearLayout linear;
+    private Button btn_shop;
+    private String url_image="https://img.alicdn.com/imgextra/i3/2257197507/O1CN01usEcgU25KFmTX1RGE_!!2257197507.jpg";
+    private Handler handler=new Handler()
+    {
+        @RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
+        public void handleMessage(Message msg) {
+            switch (msg.what) {
+                case 0:
+                    Bitmap bmp=(Bitmap)msg.obj;
+                    linear.setBackground(new BitmapDrawable(bmp));
+                    break;
+            }
+        };
+    };
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+        cbj=(Button)findViewById(R.id.cbj);
+        linear=findViewById(R.id.linear);
+        personal=(Button)findViewById(R.id.personal);
+        btn_shop=(Button)findViewById(R.id.btn_shop);
+        btn_shop .setOnClickListener(new View.OnClickListener() {
+            public void onClick(View v) {
+                Intent intent=new Intent(MainActivity.this,ShowActivity.class);
+                startActivity(intent); //do something
+            }
+        });
+        personal.setOnClickListener(new View.OnClickListener() {
+            public void onClick(View v) {
+                Intent intent4=new Intent(MainActivity.this,PersonalActivity.class);
+                startActivity(intent4); //do something
+            }
+        });
+        cbj.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                new Thread(new Runnable() {
+                    @Override
+                    public void run() {
+                        Bitmap bmp = getImage(url_image);
+                        Message msg = new Message();
+                        msg.what = 0;
+                        msg.obj = bmp;
+                        handler.sendMessage(msg);
+                    }
+                }).start();
+            }
+        });
+
+    }
+
+    private Bitmap getImage(String url_image) {
+        Bitmap bmp = null;
+        try {
+            URL Myurl = new URL(url_image);
+            HttpURLConnection conn = (HttpURLConnection) Myurl.openConnection();
+            conn.setConnectTimeout(6000);
+            conn.setDoInput(true);
+            conn.setUseCaches(false);
+            conn.connect();
+            InputStream is = conn.getInputStream();
+            bmp = BitmapFactory.decodeStream(is);
+            is.close();
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return bmp;
+
+    }
+}
+

students/com1714080901118/实验八/app/src/main/java/edu/hzuapps/androidlabs/Com1714080901118/PersonalActivity.java

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+package com.example.aishop;
+
+import android.content.Intent;
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.net.Uri;
+import android.os.Build;
+import android.os.Bundle;
+import android.provider.MediaStore;
+import android.support.design.widget.FloatingActionButton;
+import android.support.design.widget.Snackbar;
+import android.support.v4.content.FileProvider;
+import android.support.v7.app.ActionBar;
+import android.support.v7.app.AppCompatActivity;
+import android.support.v7.widget.Toolbar;
+import android.view.View;
+import android.widget.Button;
+import android.widget.ImageView;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+
+public class PersonalActivity extends AppCompatActivity {
+
+    public static final int TAKE_PHOTO=1;
+    private ImageView pic;
+    private Uri imageUrl;
+    private Button pictureBtn;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_personal);
+        ActionBar actionBar=getSupportActionBar();
+        if(actionBar!=null){
+            actionBar.hide();
+        }
+        pictureBtn=(Button) findViewById(R.id.pictureBtn);
+        pic=(ImageView) findViewById(R.id.picture);
+
+        pictureBtn.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                File outputImage=new File(getExternalCacheDir(),"output_image.jpg");
+                try {
+                    if(outputImage.exists()){
+                        outputImage.delete();
+                    }
+                    outputImage.createNewFile();
+                }catch (IOException e){
+                    e.printStackTrace();
+                }
+                if(Build.VERSION.SDK_INT>=24){
+                    imageUrl= FileProvider.getUriForFile(PersonalActivity.this,"com.example.aishop",outputImage);
+                }
+                else {
+                    imageUrl=Uri.fromFile(outputImage);
+                }
+                //启动相机
+                Intent intent=new Intent("android.media.action.IMAGE_CAPTURE");
+                intent.putExtra(MediaStore.EXTRA_OUTPUT,imageUrl);
+                startActivityForResult(intent,TAKE_PHOTO);
+            }
+        });
+    }
+    @Override
+    protected void onActivityResult(int requestCode,int resultCode,Intent data){
+        switch (requestCode){
+            case TAKE_PHOTO:
+                if(resultCode==RESULT_OK){
+                    try{
+                        //显示图片
+                        Bitmap bitmap= BitmapFactory.decodeStream(getContentResolver().openInputStream(imageUrl));
+                        pic.setImageBitmap(bitmap);
+                    }
+                    catch (FileNotFoundException e){
+                        e.printStackTrace();
+                    }
+                }
+                break;
+            default:
+                break;
+        }
+    }
+
+}

students/com1714080901118/实验八/app/src/main/java/edu/hzuapps/androidlabs/Com1714080901118/ShowActivity.java

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+package com.example.aishop;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.support.design.widget.FloatingActionButton;
+import android.support.design.widget.Snackbar;
+import android.support.v7.app.AppCompatActivity;
+import android.support.v7.widget.Toolbar;
+import android.view.View;
+import android.widget.ImageView;
+
+public class ShowActivity extends AppCompatActivity {
+    private ImageView imageView;
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_show);
+        Toolbar toolbar = findViewById(R.id.toolbar);
+        setSupportActionBar(toolbar);
+        imageView=(ImageView)findViewById(R.id.book);
+        imageView .setOnClickListener(new View.OnClickListener() {
+            public void onClick(View v) {
+                Intent intent2=new Intent(ShowActivity.this,BookActivity.class);
+                startActivity(intent2); //do something
+            }
+        });
+        FloatingActionButton fab = findViewById(R.id.fab);
+        fab.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
+                        .setAction("Action", null).show();
+            }
+        });
+    }
+}