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");
    }

}