Android开发-自定义View-AndroidStudio(二十五)数独(2)Handler延迟

转载请注明出处：http://blog.csdn.net/iwanghang/article/details/54138268
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老规矩，先上GIF动态图，看个效果，如果符合你的项目或者确定你要了解的内容，再往下看吧：

继续前面几篇博文。实现onDraw延迟效果，实现音效添加。

项目下载：http://download.csdn.net/detail/iwanghang/9730637

NewView.java：

package com.iwanghang.newview;import android.app.AlertDialog;import android.content.Context;import android.graphics.Canvas;import android.graphics.Color;import android.graphics.Paint;import android.os.Handler;import android.os.Message;import android.util.AttributeSet;import android.view.LayoutInflater;import android.view.MotionEvent;import android.view.View;import android.widget.TextView;public class NewView extends View{    // 单元格的宽度和高度    private float width;    private float height;    private int checkPoint = 1; // 当前关卡    private MainActivity mainActivity = (MainActivity) getContext();    //private Number number = new Number();    private Number number = new Number(checkPoint);    public NewView(Context context, AttributeSet attrs) {        super(context, attrs);    }    public NewView(MainActivity mainActivity) {        super(mainActivity);    }    @Override    protected void onSizeChanged(int w, int h, int oldw, int oldh) {        this.width = w / 9f;        this.height = h / 10f;        super.onSizeChanged(w, h, oldw, oldh);    }    // 当Android系统需要绘制一个View对象时，就会调用该对象的onDraw    @Override    protected void onDraw(Canvas canvas) {        System.out.println("AAA onDraw -----------------");        // 画背景        Paint backgroundPaint = new Paint();        backgroundPaint.setColor(getResources().getColor(R.color.colorBackground));        canvas.drawRect(0,0,getWidth(),getHeight(),backgroundPaint);        Paint darkPaint = new Paint();        darkPaint.setColor(getResources().getColor(R.color.colorDark));        Paint hilitePaint = new Paint();        hilitePaint.setColor(getResources().getColor(R.color.colorHilite));        Paint lightPaint = new Paint();        lightPaint.setColor(getResources().getColor(R.color.colorLight));        // 绘制9X9的网络格        // 两条距离为1的直线，视觉上会有割裂的效果        for (int i = 0; i < 9; i++) {            canvas.drawLine(0, i*height, getWidth(), i*height, lightPaint);            canvas.drawLine(0, i*height+1, getWidth(), i*height+1, hilitePaint);            canvas.drawLine(i*width, 0, i*width, getHeight(), lightPaint);            canvas.drawLine(i*width+1, 0, i*width+1, getHeight(), hilitePaint);        }        // 绘制3X3的网络格        for (int i = 0; i < 10; i++) {            if (i % 3 != 0) {                continue;            }            canvas.drawLine(0, i*height, getWidth(), i*height, darkPaint);            canvas.drawLine(0, i*height+1, getWidth(), i*height+1, hilitePaint);            canvas.drawLine(i*width, 0, i*width, getHeight(), darkPaint);            //canvas.drawLine(i*width+1, 0, i*width+1, getHeight(), hilitePaint);            canvas.drawLine(i*width, 1, i*width, getHeight(), hilitePaint);        }        // 绘制数字        Paint numberPaint = new Paint();        numberPaint.setColor(Color.BLACK);        numberPaint.setStyle(Paint.Style.STROKE);        numberPaint.setTextSize(height*0.75f);        numberPaint.setTextAlign(Paint.Align.CENTER);        numberPaint.setAntiAlias(true); // 抗锯齿        /**         * 数字居中位置         * x轴居中比较容易计算         * y轴居中的计算，依赖于FontMetrics，大家很容易百度到相关的知识         */        Paint.FontMetrics fm = numberPaint.getFontMetrics();        float x = width / 2;        float y = height / 2 - (fm.ascent + fm.descent) / 2;//        canvas.drawText("1", 0 * width + x, 0 * height + y, numberPaint);//        canvas.drawText("2", 1 * width + x, 1 * height + y, numberPaint);//        canvas.drawText("3", 2 * width + x, 2 * height + y, numberPaint);//        canvas.drawText("4", 3 * width + x, 3 * height + y, numberPaint);//        canvas.drawText("5", 4 * width + x, 4 * height + y, numberPaint);//        /**//         * 根据Number类中的数组，绘制数字//         *///        for (int i = 0; i < 9; i++) {//            for (int j = 0; j < 9; j++) {//                canvas.drawText(number.getTileString(i,j), i*width+x, j*height+y, numberPaint);//                mainActivity.playSound();//                handler.sendEmptyMessageDelayed(0, 200); // 每次重绘后，等待200毫秒，给handler发消息//            }//        }        /**         * 绘制一个刷新文字         */        canvas.drawText("刷新",4*width+x,9*height+y,numberPaint);        /**         * 绘制关卡文字         */        Paint strPaint = new Paint();        strPaint.setTextSize(height*0.5f);        strPaint.setAntiAlias(true); // 抗锯齿        canvas.drawText("第" + checkPoint + "关",6*width+x,9*height+y,strPaint);        //super.onDraw(canvas);//        canvas.drawText(number.getTileString(numberX,numberY), numberX*width+x, numberY*height+y, numberPaint);//        System.out.println("numberY = " + numberY);//        if (numberY < 9){//            if (number.getTileString(numberX,numberY) != ""){//                mainActivity.playSound();//                handler.sendEmptyMessageDelayed(0, 200); // 每次重绘后，等待200毫秒，给handler发消息//            }else {//                handler.sendEmptyMessageDelayed(0, 0); // 每次重绘后，等待500毫秒，给handler发消息//            }//        }        /**         * 优先绘制上一次绘制过的数字         */        int numberIndexOld = 0;        int ii = 0;        int jj = 0;        if (numberIndex != 0){ // 首次绘制，没有上一次绘制过的数字，所以不进入这个方法            System.out.println("AAA 优先绘制上一次绘制过的数字 numberIndex = " + numberIndex);            outterLoop1:            for (int i = 0; i < 9; i++) {                for (int j = 0; j < 9; j++) {                    canvas.drawText(number.getTileString(i,j), i*width+x, j*height+y, numberPaint);                    System.out.println("AAA 优先绘制上一次绘制过的数字 number = " + number.getTileString(i,j) + " | i = " + i                            + " | j = " + j + " | numberIndexOld = " + numberIndexOld);                    if (numberIndexOld == (numberIndex-1)){                        ii = i;                        jj = j;                        break outterLoop1;                    }                    numberIndexOld = numberIndexOld + 1 ;                }            }            jj = jj + 1;            if (jj == 9){                jj = 0;                ii = ii + 1;            }        }        int getOld = 0;        /**         * 根据Number类中的数组，绘制数字         */        System.out.println("AAA0 绘制数字 jj = " + jj + " | ii = " + ii);        outterLoop2:        for (int i = 0; i < 9; i++) {            for (int j = 0; j < 9; j++) {                if (getOld == 0){ // 继续上一次绘制的数字的i和j，继续绘制                    i = ii;                    j = jj;                    getOld = 1;                }                canvas.drawText(number.getTileString(i,j), i*width+x, j*height+y, numberPaint);                numberIndex = numberIndex + 1 ;                System.out.println("AAA0 绘制数字 number = " + number.getTileString(i,j) + " | i = " + i                        + " | j = " + j);                // 绘制过程中 遇到 不为空的数字 ， 播放音效 并 延迟300毫秒                System.out.println();                if (number.getTileString(i,j) != "" && numberIndex<81){                    mainActivity.playSound(); // 调用MainActivity里的方法，播放音效                    handler.sendEmptyMessageDelayed(0, 300); // 等待300毫秒，给handler发消息                    break outterLoop2;                }            }        }    }    /**     * 获取按下的数字     */    @Override    public boolean onTouchEvent(MotionEvent event) {        super.onTouchEvent(event);        if (event.getAction() == MotionEvent.ACTION_DOWN){            int selectedX = (int)(event.getX() / width);            int selectedY = (int)(event.getY() / height);            StringBuffer sb = new StringBuffer();            if (selectedY < 9){                int used[] = number.getUsedTilesByCoor(selectedX,selectedY);                for (int i = 0; i < used.length; i++) {                    sb.append(used[i]);                }                LayoutInflater layoutInflater = LayoutInflater.from(this.getContext());                View layoutView = layoutInflater.inflate(R.layout.dialog,null);                TextView textView = (TextView) layoutView.findViewById(R.id.usedTextId);                textView.setText("该位置不可用数字 = " + sb.toString());                AlertDialog.Builder builder = new AlertDialog.Builder(this.getContext());                builder.setView(layoutView);                AlertDialog dialog = builder.create();                dialog.show();            }            //Toast.makeText(getContext(), "ACTION_DOWN = " + used, Toast.LENGTH_SHORT).show();            if (selectedY == 9){                if (selectedX>=3 && selectedX<=5){                    //Toast.makeText(getContext(), "ACTION_DOWN = 刷新",Toast.LENGTH_SHORT).show();                    if (checkPoint == 1){                        checkPoint = 2;                    } else if (checkPoint == 2){                        checkPoint = 1;                    }                    //Toast.makeText(getContext(), "checkPoint = " + checkPoint, Toast.LENGTH_SHORT).show();                    number = new Number(checkPoint);                    numberIndex = 0;                    invalidate(); // onDraw()                }            }        }        return true;    }    private int numberIndex = 0; // 绘制完成的数字，下标81    private Handler handler = new Handler(){        @Override        public void handleMessage(Message msg) {            super.handleMessage(msg);            invalidate(); // onDraw();        }    };}

MainActivity.java：

package com.iwanghang.newview;import android.media.AudioManager;import android.media.SoundPool;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;public class MainActivity extends AppCompatActivity {    private SoundPool soundPool;    private static int soundId;    int resId = R.raw.doo;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        getSupportActionBar().hide();        //setContentView(R.layout.activity_main);        NewView newView = new NewView(this);        setContentView(newView);        initSoundPool(resId);    }    public void initSoundPool(int resId) { // 初始化声音池        soundPool = new SoundPool(                3, // maxStreams参数，该参数为设置同时能够播放多少音效                AudioManager.STREAM_MUSIC, // streamType参数，该参数设置音频类型，在游戏中通常设置为：STREAM_MUSIC                1 // srcQuality参数，该参数设置音频文件的质量，目前还没有效果，设置为0为默认值。        );        soundId = soundPool.load(this, resId, 1);    }    public void playSound() { // 播放声音,参数sound是播放音效的id，参数number是播放音效的次数        soundPool.play(                soundId, // 播放的音乐id                1, // 左声道音量                1, // 右声道音量                1, // 优先级，0为最低                0, // 循环次数，0无不循环，-1无永远循环                1 // 回放速度 ，该值在0.5-2.0之间，1为正常速度        );    }    public void stopSound() { // 播放声音,参数sound是播放音效的id，参数number是播放音效的次数        if (soundPool != null && soundId > 0) {            soundPool.stop(soundId);            soundPool.release();        }    }}

转载请注明出处：http://blog.csdn.net/iwanghang/article/details/54138268

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项目下载：http://download.csdn.net/detail/iwanghang/9730637
觉得博文有用，请点赞，请评论，请关注，谢谢！~