#5 #278 第五第六次实验报告

soft1614080902108/ app/ src/ test/ res/AndroidManifest.xml

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="edu.hzuapps.androidlabs.soft1614080902108">
+
+    <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=".Soft1614080902110Activity3">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+        <activity android:name=".Soft1614080902110Activity2"></activity>
+    </application>
+    <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" />
+
+</manifest>

soft1614080902108/ app/ src/ test/ res/Soft1614080902108Activity11.java

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+package androidlabs.hzuapps.edu.soft1614080902108;
+
+import android.content.Context;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+import android.text.TextUtils;
+import android.view.View;
+import android.widget.Button;
+import android.widget.CheckBox;
+import android.widget.EditText;
+import android.widget.Toast;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStreamReader;
+
+public class Soft1614080902110Activity11 extends AppCompatActivity {
+    private EditText mEditTextContent;
+    private Button mButtonDisplay;
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_soft161408090211011);
+        mEditTextContent = (EditText) findViewById(R.id.et_password);
+        Button button1 = (Button) findViewById(R.id.button_2);
+        button1.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+
+                //向内部存储写入数据
+                saveContent();
+                Toast.makeText(Soft1614080902110Activity11.this, "已保存", Toast.LENGTH_SHORT).show();
+
+            }
+        });
+
+        mButtonDisplay = (Button) findViewById(R.id.button_3);
+        mButtonDisplay.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+
+                //从内部存储读取数据
+                String s = getContent();
+                Toast.makeText(Soft1614080902110Activity11.this, s, Toast.LENGTH_SHORT).show();
+
+            }
+        });
+
+    }
+
+    private String getContent() {
+        String s = null;
+        FileInputStream fis = null;
+        try {
+            //通过该方法从内部存储中的edit_data.txt文件中读取数据
+            fis = this.openFileInput("edit_data.txt");
+            int len = 0;
+            byte[] buf = new byte[1024];
+            while ((len = fis.read(buf)) != -1) {
+                s = new String(buf, 0, len, "UTF-8");
+
+            }
+
+
+        } catch (FileNotFoundException e) {
+            e.printStackTrace();
+        } catch (IOException e) {
+            e.printStackTrace();
+        } finally {
+            if (fis != null) {
+                try {
+                    fis.close();
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+            }
+        }
+        return s;
+    }
+    private void saveContent() {
+        FileOutputStream fos = null;
+        String content = mEditTextContent.getText().toString();
+
+        try {
+
+
+            //通过该方法向内部存储中写入数据，文件名为edit_data.txt，模式为MODE_PRIVATE，表示该文件操作权限为文本应用，另一个常用的权限MODE_APPEND表示在文件末尾添加内容
+            fos = this.openFileOutput("edit_data.txt", MODE_PRIVATE);
+            fos.write(content.getBytes());
+            fos.flush();
+        } catch (FileNotFoundException e) {
+            e.printStackTrace();
+        } catch (IOException e) {
+            e.printStackTrace();
+        } finally {
+            if (fos != null) {
+                try {
+                    fos.close();
+
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+
+            }
+        }
+
+    }
+
+}

soft1614080902108/ app/ src/ test/ res/Soft1614080902108Activity2.java

@@ -0,0 +1,117 @@
+package edu.hzuapps.androidlabs.soft1614080902108;
+
+
+
+        import android.content.Context;
+        import android.content.Intent;
+        import android.content.SharedPreferences;
+        import android.support.v7.app.AppCompatActivity;
+        import android.os.Bundle;
+        import android.text.TextUtils;
+        import android.view.View;
+        import android.widget.Button;
+        import android.widget.CheckBox;
+        import android.widget.EditText;
+        import android.widget.Toast;
+
+        import java.io.BufferedReader;
+        import java.io.File;
+        import java.io.FileInputStream;
+        import java.io.FileNotFoundException;
+        import java.io.FileOutputStream;
+        import java.io.IOException;
+        import java.io.InputStreamReader;
+
+public class Soft1614080902110Activity2 extends AppCompatActivity {
+    private EditText mEditTextContent;
+    private Button mButtonDisplay;
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_soft16140809021102);
+        mEditTextContent = (EditText) findViewById(R.id.et_password);
+        Button button1 = (Button) findViewById(R.id.button_2);
+        button1.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+
+                //向内部存储写入数据
+                saveContent();
+                Toast.makeText(Soft1614080902110Activity2.this, "已保存", Toast.LENGTH_SHORT).show();
+
+            }
+        });
+
+        mButtonDisplay = (Button) findViewById(R.id.button_3);
+        mButtonDisplay.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+
+                //从内部存储读取数据
+                String s = getContent();
+                Toast.makeText(Soft1614080902110Activity2.this, s, Toast.LENGTH_SHORT).show();
+
+            }
+        });
+
+    }
+
+    private String getContent() {
+        String s = null;
+        FileInputStream fis = null;
+        try {
+            //通过该方法从内部存储中的edit_data.txt文件中读取数据
+            fis = this.openFileInput("edit_data.txt");
+            int len = 0;
+            byte[] buf = new byte[1024];
+            while ((len = fis.read(buf)) != -1) {
+                s = new String(buf, 0, len, "UTF-8");
+
+            }
+
+
+        } catch (FileNotFoundException e) {
+            e.printStackTrace();
+        } catch (IOException e) {
+            e.printStackTrace();
+        } finally {
+            if (fis != null) {
+                try {
+                    fis.close();
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+            }
+        }
+        return s;
+    }
+    private void saveContent() {
+        FileOutputStream fos = null;
+        String content = mEditTextContent.getText().toString();
+
+        try {
+
+
+            //通过该方法向内部存储中写入数据，文件名为edit_data.txt，模式为MODE_PRIVATE，表示该文件操作权限为文本应用，另一个常用的权限MODE_APPEND表示在文件末尾添加内容
+            fos = this.openFileOutput("edit_data.txt", MODE_PRIVATE);
+            fos.write(content.getBytes());
+            fos.flush();
+        } catch (FileNotFoundException e) {
+            e.printStackTrace();
+        } catch (IOException e) {
+            e.printStackTrace();
+        } finally {
+            if (fos != null) {
+                try {
+                    fos.close();
+
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+
+            }
+        }
+
+    }
+
+}

soft1614080902108/ app/ src/ test/ res/Soft1614080902108Activity3.java

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+package edu.hzuapps.androidlabs.soft1614080902108;
+
+        import android.support.v7.app.AppCompatActivity;
+        import android.os.Bundle;
+        import android.util.Log;
+        import android.widget.TextView;
+
+        import org.json.JSONException;
+        import org.json.JSONObject;
+
+        import java.io.BufferedReader;
+        import java.io.InputStream;
+        import java.io.InputStreamReader;
+        import java.net.HttpURLConnection;
+        import java.net.URL;
+
+public class Soft1614080902110Activity3 extends AppCompatActivity {
+    String text;
+    String Name;
+    String id;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_soft1614080902108);
+        getJson();
+    }
+    public void getJson() {
+        new Thread() {
+            @Override
+            public void run() {
+                try {
+                    String url_user = "https://raw.githubusercontent.com/ccccssxxxx/android-labs-2018/master/soft1614080902108/MIKE.json";
+                    URL url = new URL(url_user);
+                    HttpURLConnection conn = (HttpURLConnection) url.openConnection();
+                    conn.setConnectTimeout(5000);
+                    conn.setUseCaches(false);
+                    conn.connect();
+                    InputStream inputStream = conn.getInputStream();
+                    InputStreamReader input = new InputStreamReader(inputStream);
+                    BufferedReader buffer = new BufferedReader(input);
+                    if (conn.getResponseCode() == 200) {
+                        String inputLine;
+                        StringBuffer resultData = new StringBuffer();
+                        while ((inputLine = buffer.readLine()) != null) {
+                            resultData.append(inputLine);
+                        }
+
+                        text = resultData.toString();
+                        System.out.println(text);
+                        input.close();
+                        inputStream.close();
+                        Log.v("解析：", text);
+                        parseJson();
+                    }
+                } catch (Exception e) {
+                    e.printStackTrace();
+                }
+                runOnUiThread(new Runnable() {
+                    @Override
+                    public void run() {
+                        ((TextView) findViewById(R.id.text_view)).setText(Name);
+                        ((TextView) findViewById(R.id.text_view1)).setText(id);
+
+                    }
+                });
+            }
+        }.start();
+    }
+
+    public void parseJson() {
+        JSONObject Json1 = null;
+        try {
+            Json1 = new JSONObject(text);
+            Name = Json1.getString("Name");
+            id = Json1.getString("id");
+        } catch (JSONException e) {
+            e.printStackTrace();
+            Log.v("Error", "Error！");
+        }
+
+    }
+
+}