Sprint 冲刺第三阶段第6-10天

这几天一直都在整理我们之前的内容，检查会不会有细节问题。例如界面跳转、颜色等。

因为一直没办法找到guitub存放位置。于是在这里存放一些主代码。

MainActivity.java

package com.example.brdemo;

import android.app.Activity;

import android.content.Intent;

import android.database.Cursor;

import android.database.sqlite.SQLiteDatabase;

import android.database.sqlite.SQLiteException;

import android.net.Uri;

import android.os.Bundle;

import android.support.v4.widget.CursorAdapter;

import android.support.v4.widget.SimpleCursorAdapter;

import android.view.Menu;

import android.view.MenuInflater;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.EditText;

import android.widget.Toast;

public class MainActivity extends Activity {

    private Button btn1,btn2,btn3;

    private EditText edname,edsecret;

    Intent iguangs, iches;

    SQLiteDatabase db;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        btn1 = (Button) findViewById(R.id.b1);// 注册

        btn2 = (Button) findViewById(R.id.bt3);// 测试

        btn3 = (Button) findViewById(R.id.b2);// 登录

        edname = (EditText) findViewById(R.id.editname);

        edsecret = (EditText) findViewById(R.id.editsecret);

        db=SQLiteDatabase.openOrCreateDatabase(this.getFilesDir().toString()+"/mydb.db3", null);

        // 注册

        btn1.setOnClickListener(new OnClickListener() {

            @Override

            public void onClick(View arg0) {

                String title,content;

                 title=edname.getText().toString();

                 content=edsecret.getText().toString();

                try {

                    insertData(db, title, content);

                    Cursor cursor=db.rawQuery("select * from myTable", null);

                    inflateList(cursor);

                } catch (SQLiteException e) {

                    // TODO: handle exception

                    db.execSQL("create table myTable(_id integer"

                            +"primary key autonicrement,"

                            +"title varchar(50),"

                            + "content varchar(255))");

                    insertData(db, title, content);

                    Cursor cursor=db.rawQuery("select * from myTable", null);

                    inflateList(cursor);

                }

                Toast.makeText(MainActivity.this, "用户"+edname.getText() +"注册成功", Toast.LENGTH_LONG).show();

                iguangs = new Intent();

                Bundle bundle = new Bundle();

                iguangs.setClass(MainActivity.this, H.class);

                bundle.putString("userName", edname.getText().toString());

                bundle.putString("phoneNum", edsecret.getText().toString());

                iguangs.putExtras(bundle);

                // 启动Activity

                startActivity(iguangs);

            }

            private void inflateList(Cursor cursor) {

                // TODO Auto-generated method stub

            }

            private void insertData(SQLiteDatabase db, String title,

                    String content) {

                // TODO Auto-generated method stub

            }

        });

        // 测试

        btn2.setOnClickListener(new OnClickListener() {

            @Override

            public void onClick(View arg0) {

                // TODO Auto-generated method stub

                Uri uri = Uri.parse("http://open.taobao.com");

                 iches = new Intent(Intent.ACTION_VIEW, uri);

                startActivity(iches);

            }

        });

        // 登录

        btn3.setOnClickListener(new OnClickListener() {

            @Override

            public void onClick(View arg0) {

                iguangs = new Intent();

                Bundle bundle = new Bundle();

                iguangs.setClass(MainActivity.this, H.class);

                bundle.putString("userName", edname.getText().toString());

                bundle.putString("phoneNum", edsecret.getText().toString());

                Toast.makeText(MainActivity.this, "用户"+edname.getText() +"登录成功", Toast.LENGTH_LONG).show();

                iguangs.putExtras(bundle);

                // 启动Activity

                startActivity(iguangs);

            }

        });

    }

    @Override

    public boolean onCreateOptionsMenu(Menu menu) {

        // TODO Auto-generated method stub

        MenuInflater inflater = new MenuInflater(this);

        inflater.inflate(R.menu.main, menu);

        return super.onCreateOptionsMenu(menu);

    }

private void insertData(SQLiteDatabase db,String title,String content) {

    db.execSQL("insert into myTable values(null,?,?)",new String[]{title,content});

}

private void inflateList(Cursor cursor) {

    SimpleCursorAdapter simpleCursorAdapter=new SimpleCursorAdapter(MainActivity.this,

            R.layout.activity_main, cursor, new String[]{"title","content"},

            new int[]{R.id.editname,R.id.editsecret}, CursorAdapter.FLAG_REGISTER_CONTENT_OBSERVER);

}

@Override

    protected void onDestroy() {

        // TODO Auto-generated method stub

        super.onDestroy();

        if (db!=null &&db.isOpen()) {

            db.close();

        }

}

}

CheckActivity.java(四则运算的核心算法)

package com.example.brdemo;

import java.util.Random;

import android.app.ActionBar;

import android.app.Activity;

import android.content.Context;

import android.content.Intent;

import android.media.AudioManager;

import android.os.Bundle;

import android.view.MenuItem;

import android.view.View;

import android.widget.Button;

import android.widget.EditText;

import android.widget.TextView;

public class CheckActivity extends Activity {

    public Button btn1, btn2;// 开始答题，退出

    public Button btnbof, btnzant, btg, btd;// 播放，退出,高音量，低音量

    private AudioManager am;// 音量调节定义

    private EditText et1;

    private EditText et2;

    long startTime;

    long endTime;

    private TextView t11;

    private TextView t4;

    private TextView t2;

    private TextView t3;

    private TextView t1;

    private TextView t5;

    private TextView t6;

    int ranswer = 0;

    int uanswer = 0;

    String str = "";

    String z = "";

    private boolean stop = false;

    public int num = 5, T = 0, F = 0, count = 1, b = 0;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.szys);

        am = (AudioManager) getSystemService(Context.AUDIO_SERVICE);

        // 最大音量

        int maxVolume = am.getStreamMaxVolume(AudioManager.STREAM_MUSIC);

        // 当前音量

        int currentVolume = am.getStreamVolume(AudioManager.STREAM_MUSIC);

        btn1 = (Button) findViewById(R.id.bb1);// 开始答题

        btn2 = (Button) findViewById(R.id.bb2);// 退出

        et2 = (EditText) findViewById(R.id.editText2);

        et1 = (EditText) findViewById(R.id.editText1);

        t11 = (TextView) findViewById(R.id.t11);

        t4 = (TextView) findViewById(R.id.textView4);

        t6 = (TextView) findViewById(R.id.textView6);

        t2 = (TextView) findViewById(R.id.textView12);

        t5 = (TextView) findViewById(R.id.textView10);

        t3 = (TextView) findViewById(R.id.textView7);

        t1 = (TextView) findViewById(R.id.textView14);

        ActionBar actionBar = getActionBar();// 获取ActionBar对象

        actionBar.setDisplayShowHomeEnabled(true);// 显示应用程序图标

        actionBar.setDisplayHomeAsUpEnabled(true);// 将应用程序图标转变为可点击图标，并添加一个返回箭头。

        // 播放按钮

        btnbof = (Button) findViewById(R.id.btstart);

        btnbof.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View arg0) {

                // TODO Auto-generated method stub

                startService(new Intent(CheckActivity.this, MyService.class));

            }

        });

        // 暂停按钮

        btnzant = (Button) findViewById(R.id.btstop);

        btnzant.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View arg0) {

                // TODO Auto-generated method stub

                stopService(new Intent(CheckActivity.this, MyService.class));

            }

        });

        // 高音量

        btg = (Button) findViewById(R.id.btgao);

        btg.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View arg0) {

                // TODO Auto-generated method stub

                am.adjustStreamVolume(AudioManager.STREAM_MUSIC,

                        AudioManager.ADJUST_RAISE,

                        AudioManager.FX_FOCUS_NAVIGATION_UP);

            }

        });

        // 低音量

        btd = (Button) findViewById(R.id.btdi);

        btd.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View arg0) {

                // TODO Auto-generated method stub

                am.adjustStreamVolume(AudioManager.STREAM_MUSIC,

                        AudioManager.ADJUST_LOWER,

                        AudioManager.FX_FOCUS_NAVIGATION_UP);

            }

        });

        btn1.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View arg0) {

                CheckActivity.this.finish();

            }

        });

        btn2.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View arg0) {

                // TODO Auto-generated method stub

                CheckActivity.this.finish();

            }

        });

        // 开始答题

        btn1.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View arg0) {

                T = 0;

                F = 0;

                str = "";

                z = "";

                stop = false;

                try {

                    String bb = et1.getText().toString();

                    num = Integer.parseInt(bb);

                    if (num > 15) {

                        t11.setText("输入题数错误，请重新输入！（1-15）");

                        et1.setText("");

                    } else {

                        startTime = System.currentTimeMillis();

                        t4.setText("" + T);

                        t2.setText("" + F);

                        t1.setText("" + b);

                        // btn.setVisible(false);

                        // et1.setEditable(false);

                        showtext();

                    }

                } catch (NumberFormatException e1) {

                    t11.setText("输入题数错误，请重新输入！（1~15）");

                    et1.setText("");

                }

            }

        });

        et2.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View arg0) {

                try {

                    if (!stop) {

                        String tt = et2.getText().toString();

                        uanswer = Integer.parseInt(tt);

                        ;

                        if (num == count) {

                            if (uanswer == ranswer) {

                                t4.setText("" + ranswer);

                                t3.setText("答对！");

                                T++;

                                t6.setText("" + T);

                                b = (100 / num) * T;

                                t1.setText("" + b);

                                if (b > 90) {

                                    Intent intent = new Intent();

                                    intent.setClass(CheckActivity.this,

                                            Test1.class);

                                    startActivity(intent);

                                    CheckActivity.this.finish();

                                }

                                count++;

                            } else {

                                t4.setText("" + ranswer);

                                t3.setText("答错！");

                                F++;

                                t2.setText("" + F);

                                count++;

                            }

                            stop = true;

                            t3.setText(" 答題結束！");

                            endTime = System.currentTimeMillis();

                            // et2.setEditable(true);

                            // btn.setVisible(true);

                            t5.setText((endTime - startTime) / 1000 + "s");

                        }

                        else if (uanswer == ranswer) {

                            t4.setText("" + ranswer);

                            t3.setText("答对！");

                            T++;

                            t6.setText("" + T);

                            b = (100 / num) * T;

                            t1.setText("" + b);

                            showtext();

                            if (b > 90) {

                                Intent intent = new Intent();

                                intent.setClass(CheckActivity.this, Test1.class);

                                startActivity(intent);

                                CheckActivity.this.finish();

                            }

                            count++;

                        } else {

                            t4.setText("" + ranswer);

                            t3.setText("答错！");

                            F++;

                            t2.setText("" + F);

                            showtext();

                            count++;

                        }

                    }

                }

                catch (NumberFormatException e2) {

                    t11.setText(str + "答案格式错误，请重新输入答案！");

                    et2.setText("");

                }

            }

        });

    }

    void showtext() {

        char op = '+';

        int a = 0, b = 0, c = 0, e = 0, f = 0, opnum = 0, chioce = 0;

        int temp = 0;

        Random ra = new Random();

        e = ra.nextInt(10) + 1;

        f = ra.nextInt(10) + 1;

        chioce = ra.nextInt(2) + 1;

        if (e % 2 == 0) {

            a = ra.nextInt(10) + 2;

        } else {

            a = -ra.nextInt(10) + 2;

        }

        if (f % 2 == 0) {

            b = ra.nextInt(10) + 2;

        } else {

            b = -ra.nextInt(10) + 2;

        }

        c = ra.nextInt(5);

        opnum = Math.abs(ra.nextInt()) % 4 + 1;

        et2.setText("");

        switch (chioce) {

        case 1: {

            switch (opnum) {

            case 1:

                op = '+';

                break;

            case 2:

                op = '-';

                break;

            case 3:

                op = '*';

                break;

            case 4:

                op = '/';

                break;

            }

            if ((op == '-') && (a < b)) {

                temp = a;

                a = b;

                b = temp;

            }

            if (op == '/') {

                if (b == 0) {

                    b = 1;

                }

                a = a * b;

            }

            if (a > 0 && b > 0) {

                z = String.valueOf(a) + String.valueOf(op) + String.valueOf(b)

                        + "=" + "\n";

            } else if (a < 0 && b > 0) {

                z = "(" + String.valueOf(a) + ")" + String.valueOf(op)

                        + String.valueOf(b) + "=" + "\n";

            } else if (a > 0 && b < 0) {

                z = String.valueOf(a) + String.valueOf(op) + "("

                        + String.valueOf(b) + ")" + "=" + "\n";

            } else {

                z = "(" + String.valueOf(a) + ")" + String.valueOf(op) + "("

                        + String.valueOf(b) + ")" + "=" + "\n";

            }

            str = str + z;

            t11.setText(str);

            switch (op) {

            case '+':

                ranswer = a + b;

                break;

            case '-':

                ranswer = a - b;

                break;

            case '*':

                ranswer = a * b;

                break;

            case '/':

                ranswer = a / b;

                break;

            }

            break;

        }

        case 2: {

            int jc = 1;

            str = str + String.valueOf(c) + "!=" + "\n";

            t11.setText(str);

            for (int i = c; i > 0; i--) {

                jc = jc * i;

            }

            ranswer = jc;

            break;

        }

        }

    }

    // 返回主菜单

    @Override

    public boolean onOptionsItemSelected(MenuItem item) {

        // TODO Auto-generated method stub

        switch (item.getItemId()) {

        case android.R.id.home:

            // 创建启动MainActivity的Intent

            Intent intent = new Intent();

            intent.setClass(this, H.class);

            // 添加额外的Flag，将Activity栈中处于MainActivity之上的Activity弹出

            intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);

            startActivity(intent);

            CheckActivity.this.finish();

            break;

        default:

            break;

        }

        return super.onOptionsItemSelected(item);

    }

}

MyService.java（音乐的播放）

package com.example.brdemo;

import android.app.Service;

import android.content.Intent;

import android.media.MediaPlayer;

import android.os.IBinder;

import android.util.Log;

public class MyService extends Service {

//系统使用MediaPlayer播放音乐，定义对象mp

    private MediaPlayer mey;

    private String TAG="Main";

    @Override

    public IBinder onBind(Intent intent) {

        // TODO Auto-generated method stub

        return null;

    }

    @Override

    public void onCreate() {

        super.onCreate();

//初始化MediaPlayer对象，准备播放音乐，音乐文件放在文件夹/res/raw中

        mey = MediaPlayer.create(MyService.this, R.raw.zhou);

        Intent intent = new Intent();

        intent.putExtra("control", 1);

        sendBroadcast(intent);

        mey.start();

        Log.i(TAG, "MusicService onCreate被运行");

    }

  @Override

public int onStartCommand(Intent intent, int flags, int startId) {

    // TODO Auto-generated method stub

//开始播放音乐

     mey.start();

     Log.i(TAG, "MusicService onStartCommand被运行");

     return super.onStartCommand(intent, flags, startId);

}

    @Override

    public void onDestroy() {

        super.onDestroy();

        //停止播放音乐

            mey.stop();

        Log.i(TAG, "MusicService onDestroy被运行");

    }

}

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