做的一个小游戏，让儿童照着屏幕上的根据笔顺来写数字 0-9
学会了一点细节还有实现帧动画效果，将比较好的代码放一放
首先是实现启动应用后出现启动界面2s后向主界面跳转：
实现代码如下：
Timer timer = new Timer(); //用于设置启动界面显示的时间
TimerTask timerTask = new TimerTask() {
@Override
public void run() {
startActivity(new Intent(StartActivity.this,MainActivity.class));
finish();
}
};
timer.schedule(timerTask,2000); //设置两秒后跳转到主界面在主界面有三个button，分别为开关主音量、开始游戏、关于界面
其他两个功能实现简单，点击开始游戏后进入选择数字界面，从0-9，选择之后进入只有第一帧的数字，要求玩家滑动屏幕来画完数字，左上角有演示button，即实现帧动画功能
进入页面的时候初始化放置图片的第一帧，通过输入流来打开，并且通过图片的原本大小和屏幕的尺寸来算出缩放比例
初始化代码如下：
private void initView() {
iv_frame = findViewById(R.id.iv_frame);
linearLayout = findViewById(R.id.linearLayout1);
LinearLayout write_layout = findViewById(R.id.LinearLayout_number);
write_layout.setBackgroundResource(R.drawable.bg1);
//获取屏幕的高度和宽度
widthPixels = this.getResources().getDisplayMetrics().widthPixels;
heightPixels = this.getResources().getDisplayMetrics().heightPixels;
//图片是按照1280*720准备的，要适应于其他的分辨率的屏幕
scaleWidth = ((float)widthPixels/720);
scaleHeight = ((float)heightPixels/1280);
try{
//通过输入流打开第一张图片
InputStream is = getResources().getAssets().open("on1_1.png");
//通过使用bitmap解析第一张图片
arrdown = BitmapFactory.decodeStream(is);
} catch (IOException e) {
e.printStackTrace();
}
//获取布局的宽高信息
LinearLayout.LayoutParams layoutParams = (LinearLayout.LayoutParams) iv_frame.getLayoutParams();
//获取图片缩放后宽度
layoutParams.width = (int)(arrdown.getWidth() * scaleWidth);
//获取图片缩放后高度
layoutParams.height = (int)(arrdown.getHeight() * scaleHeight);
iv_frame.setLayoutParams(layoutParams);
lodimagep(1);
}
private synchronized void lodimagep(int j) {
i = j;
if(i < 25){ //当前图片小于25
String name = "on1_" + i;
//获取图片资源id
int imgid = getResources().getIdentifier(name,"drawable","com.example.msi.writenumber");
iv_frame.setBackgroundResource(imgid);
i++;
}
if(j == 24){ //如果当前图片的位置为24
if(typedialog){ //没有对话框的情况下
dialog(); //调用书写完成对话框方法
}
}
}
实现代码如下：
其中R.drawable.frame1为放置所有帧的anmianimation-list
duration为帧持续的时间为0.15s即150ms
public void OnYS(View v){
if(mdiaolg == null){
mdiaolg = new mCustomProgressDialog(this,"演示中单击边缘取消",R.drawable.frame1);
}
mdiaolg.show();
}
//继承dialog代码如下：
public class mCustomProgressDialog extends ProgressDialog{
private AnimationDrawable mAnimation; //设置对话框的动画资源
private Context mContext;
private ImageView mImageView;
private String mLoadingTip; //设置对话框文字
private TextView mLoadingTv; //显示对话框文字
private int mResid; //资源id
public mCustomProgressDialog(Context context,String content,int id) {
super(context);
this.mContext = context;
this.mLoadingTip = content;
this.mResid = id;
//设置单击对话框周边是否让dialog消失，设置为True
setCanceledOnTouchOutside(true);
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.progress_dialog);
//获取布局文件中的TextView
mLoadingTv = findViewById(R.id.loadingTv);
mImageView = findViewById(R.id.loadingIv);
if(mResid == 0){
mImageView.setBackgroundDrawable(null);
}else {
mImageView.setBackgroundResource(mResid);
}
mAnimation = (AnimationDrawable) mImageView.getBackground();
//为了防止在onCreate方法中只显示第一帧的解决方案之一
mImageView.post(new Runnable() {
@Override
public void run() {
mAnimation.start();
}
});
mLoadingTv.setText(mLoadingTip);
}
}还有操作时候根据鼠标滑动来实现图片切换效果
根据实时滑动屏幕的x2，y2来判断手势位置，画完之后弹出dialog完成或者再来一次
如果在中途手离开屏幕，这是耗时操作（？），则发送message，子线程接收message进行handle将图片慢慢的撤回到第一帧
实现代码如下：
linearLayout.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
switch (event.getAction()){ //获取行动方式头部
case MotionEvent.ACTION_DOWN: //手指按下事件
x1 = event.getX(); //获取手指按下的x坐标
y1 = event.getY(); //获取按下的y坐标
igvx = iv_frame.getLeft(); //获取手指按下图片的x坐标
igvy = iv_frame.getTop(); //图片的y坐标
//判断当手指按下的坐标大于图片位置的坐标时，证明手指按住移动，开始书写
if(x1 >= igvx && x1 <= igvx + (int)(arrdown.getWidth() * scaleWidth)
&& y1 >= igvy && y1 <= igvy + (int)(arrdown.getWidth() * scaleWidth) ){
type = 1; //开启书写
}else {
type = 0; //否则关闭书写
}
break;
case MotionEvent.ACTION_MOVE: //手势移动中判断
igvx = iv_frame.getLeft();
igvy = iv_frame.getTop();
x2 = event.getX();
y2 = event.getY();
//下面是根据笔画以及手势做图片的处理，滑到不同位置，加载不同图片
if(type == 1){
if(x2 >= igvx && x2 <= igvx + (int)(arrdown.getWidth() * scaleWidth)){
if(y2 <= igvy +(int)(arrdown.getHeight() * scaleHeight) / 24 &&
y2 >= igvy)
lodimagep(1);
else if(y2 <= igvy + (int)(arrdown.getHeight() * scaleHeight) / 24 * 2){
lodimagep(2);
}
else if(y2 <= igvy + (int)(arrdown.getHeight() * scaleHeight) / 24 * 3){
lodimagep(3);
}
else if(y2 <= igvy + (int)(arrdown.getHeight() * scaleHeight) / 24 * 4){
lodimagep(4);
}
else if(y2 <= igvy + (int)(arrdown.getHeight() * scaleHeight) / 24 * 5){
lodimagep(5);
}
else if(y2 <= igvy + (int)(arrdown.getHeight() * scaleHeight) / 24 * 6){
lodimagep(6);
}
else if(y2 <= igvy + (int)(arrdown.getHeight() * scaleHeight) / 24 * 7){
lodimagep(7);
}
else if(y2 <= igvy + (int)(arrdown.getHeight() * scaleHeight) / 24 * 8){
lodimagep(8);
}
else if(y2 <= igvy + (int)(arrdown.getHeight() * scaleHeight) / 24 * 9){
lodimagep(9);
}
else if(y2 <= igvy + (int)(arrdown.getHeight() * scaleHeight) / 24 * 10){
lodimagep(10);
}
else if(y2 <= igvy + (int)(arrdown.getHeight() * scaleHeight) / 24 * 11){
lodimagep(11);
}
else if(y2 <= igvy + (int)(arrdown.getHeight() * scaleHeight) / 24 * 12){
lodimagep(12);
}
else if(y2 <= igvy + (int)(arrdown.getHeight() * scaleHeight) / 24 * 13){
lodimagep(13);
}
else if(y2 <= igvy + (int)(arrdown.getHeight() * scaleHeight) / 24 * 14){
lodimagep(14);
}
else if(y2 <= igvy + (int)(arrdown.getHeight() * scaleHeight) / 24 * 15){
lodimagep(15);
}
else if(y2 <= igvy + (int)(arrdown.getHeight() * scaleHeight) / 24 * 16){
lodimagep(16);
}
else if(y2 <= igvy + (int)(arrdown.getHeight() * scaleHeight) / 24 * 17){
lodimagep(17);
}
else if(y2 <= igvy + (int)(arrdown.getHeight() * scaleHeight) / 24 * 18){
lodimagep(18);
}
else if(y2 <= igvy + (int)(arrdown.getHeight() * scaleHeight) / 24 * 19){
lodimagep(19);
}
else if(y2 <= igvy + (int)(arrdown.getHeight() * scaleHeight) / 24 * 20){
lodimagep(20);
}
else if(y2 <= igvy + (int)(arrdown.getHeight() * scaleHeight) / 24 * 21){
lodimagep(21);
}
else if(y2 <= igvy + (int)(arrdown.getHeight() * scaleHeight) / 24 * 22){
lodimagep(22);
}
else if(y2 <= igvy + (int)(arrdown.getHeight() * scaleHeight) / 24 * 23){
lodimagep(23);
}
else if(y2 <= igvy + (int)(arrdown.getHeight() * scaleHeight) / 24 * 24){
lodimagep(24);
}
}
}
break;
case MotionEvent.ACTION_UP: //手势抬起判断
type = 0;
if(touchTimer != null){ //中断计时器
touchTimer.cancel();
touchTimer = null;
}
touchTimer = new Timer();
touchTimer.schedule(new TimerTask() {
@Override
public void run() {
Thread thread = new Thread(new Runnable() { //创建子线程
@Override
public void run() {
//创建Message用于发送消息
Message message = new Message();
message.what = 2; //Message消息为2
//发送消息给handle实现倒退显示图片
mHandler.sendMessage(message);
}
});
thread.start();
}
},300,200);
}
return true;
}
});
}
public Handler mHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case 2: //当接收到手势抬起子线程消息时
jlodimage(); //调用资源图片倒退显示方法
break;
default:
break;
}
super.handleMessage(msg);
}
};
private void jlodimage() {
if(i == 25){
}else if(i < 25){
if(i > 1){
i--;
}else if(i == 1){
i =1;
if(touchTimer != null){
touchTimer.cancel();
touchTimer = null;
}
}
String name ="on1_" + i;
int imgid = getResources().getIdentifier(name,"drawable",
"com.example.msi.writenumber");
iv_frame.setBackgroundResource(imgid);
}
}以数字1为例写完代码，因为后面的数字实在是难写…