当我点击球时，此代码可让球在屏幕上移动所有方向。我的要求是当我点击暂停按钮时我想暂停球？为此，我应该在哪里添加按钮以及暂停球的代码是什么？
公共类MainActivity扩展了Activity {
static TextView editText;
static int score=0;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
editText=(TextView) findViewById(R.id.editText1);
//editText.setText(""+score);
Button button=(Button) findViewById(R.id.button1);
button.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
new AnimatedView(MainActivity.this).pauseClicked();
}
});
}
public static void setCount(int count) {
//new MainActivity().onCreate(null);
score=count;
editText.setText(""+score);
}
}
Animatedview.java
public class AnimatedView extends ImageView{
static int count=0;
private Context mContext;
int x = 130;
int y = 470;
private float a,b;
private int xVelocity = 8;
private int yVelocity = 8;
private Handler h;
private final int FRAME_RATE = 25;
BitmapDrawable ball;
boolean touching;
boolean dm_touched = false;
float move=3;
int bm_x = 0, bm_y = 0, bm_offsetx, bm_offsety,bm_w,bm_h;
boolean paused;
private Paint line, ball1, background;
static int click=0;
public AnimatedView(Context context) {
super(context);
}
public AnimatedView(Context context, AttributeSet attrs) {
super(context, attrs);
mContext = context;
h = new Handler();
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
int bgColor = getResources().getColor(R.color.game_bg);
String bgColorStr = prefs.getString("bgColor","");
if(bgColorStr.length() > 0) {
bgColor = Color.parseColor(bgColorStr);
}
int lineColor = getResources().getColor(R.color.line);
String lineColorStr = prefs.getString("wallColor","");
if(lineColorStr.length() > 0) {
lineColor = Color.parseColor(lineColorStr);
}
int ballColor = getResources().getColor(R.color.position);
String ballColorStr = prefs.getString("ballColor","");
if(ballColorStr.length() > 0) {
ballColor = Color.parseColor(ballColorStr);
}
line = new Paint();
line.setColor(lineColor);
ball1 = new Paint();
ball1.setColor(ballColor);
background = new Paint();
background.setColor(bgColor);
setFocusable(true);
this.setFocusableInTouchMode(true);
}
@Override
public void buildDrawingCache() {
// TODO Auto-generated method stub
super.buildDrawingCache();
}
private Runnable r = new Runnable() {
@Override
public void run() {
//Log.e("game","run called");
if(touching = true)
invalidate();
}
};
@Override
protected void onDraw(Canvas c) {
//Log.e("game","ondraw called");
//int z= c.getHeight()/2;
//Log.e("game","z is"+z);
BitmapDrawable ball = (BitmapDrawable) mContext.getResources().getDrawable(R.drawable.ball);
if (x<0 && y <0) {
//x = this.getWidth()/2;
y = c.getHeight()/2;
} else {
x += xVelocity;
y += yVelocity;
if ((x > this.getWidth() - ball.getBitmap().getWidth()) || (x < 0)) {
xVelocity = xVelocity*-1;
}
if (y >( this.getHeight() - ball.getBitmap().getHeight()) ||y <0) {
yVelocity = yVelocity*-1;
}
}
c.drawBitmap(ball.getBitmap(), x, y, null);
if(touching){
// Log.e("game","iftouch called called");
h.postDelayed(r, FRAME_RATE);
bm_w=ball.getBitmap().getWidth();
bm_h=ball.getBitmap().getHeight();
}
}
public void pauseClicked()
{ touching=true;
Log.d("s","pause called");
if (touching) {
// paused = true;
Log.d("s","touhcing called");
h.removeCallbacks(r);
touching = false;
} else {
touching = true;
}
}
@Override
public boolean onTouchEvent(MotionEvent event) {
// Log.d("game","ontouch called");
int touchType = event.getAction();
switch(touchType){
case MotionEvent.ACTION_MOVE:
a = event.getX();
b = event.getY();
touching = true;
/* if (dm_touched) {
x = (int) a - bm_offsetx;
y = (int) b - bm_offsety;
}*/
//invalidate();
break;
case MotionEvent.ACTION_DOWN:
//x and y give you your touch coordinates
a = event.getX();
b = event.getY();
touching = true;
/* if (touching) {
// paused = true;
h.removeCallbacks(r);
touching = false;
} else {
touching = true;
}*/
//Log.d("game","action_down called");
Log.e("s",""+ a);
Log.e("s",""+ b);
Log.e("s",""+ x);
Log.e("s",""+ y);
Log.e("s",""+ bm_w);
Log.e("s",""+ bm_h);
if ((a > x) && (a < bm_w + x) && (b > y) && (b < bm_h + y)) {
count++;
MainActivity.setCount(count);
//invalidate();
Log.i("score",""+count);
}
if (dm_touched) {
if ((a > x) && (a < bm_w + x) && (b > y) && (b < bm_h + y)) {
move+=2;
//x = (int) a - bm_offsetx;
y = (int) (yVelocity*-1);
//invalidate();
}}
// dm_touched = true;
case MotionEvent.ACTION_UP:
a = event.getX();
b = event.getY();
if(a>x+20&&a<330&&b<=y+320&&b>y){
click++;
invalidate();
touching=true;}
if ((a > x) && (a < bm_w + x) && (b > y) && (b < bm_h + y)) {
Log.e("game","clicked");
}
default:
dm_touched = true;
}
return true;
}
@Override
public void destroyDrawingCache() {
count=0;
super.destroyDrawingCache();
}
}
答案 0 :(得分：1)
如果用户再次触摸屏幕，如果符合您的要求，您可以暂停球。 为此，您可以在MotionEvent.ACTION_DOWN事件中实现：
case MotionEvent.ACTION_DOWN:
// x and y give you your touch coordinates
a = event.getX();
b = event.getY();
if (touching) {
// paused = true;
h.removeCallbacks(r);
touching = false;
} else {
touching = true;
}
Log.e("s", "" + a);
Log.e("s", "" + b);
Log.e("s", "" + x);
Log.e("s", "" + y);
Log.e("s", "" + bm_w);
Log.e("s", "" + bm_h);
if ((a > x) && (a < bm_w + x) && (b > y) && (b < bm_h + y)) {
count++;
Log.i("score", "" + count);
}
if (dm_touched) {
if ((a > x) && (a < bm_w + x) && (b > y) && (b < bm_h + y)) {
move += 2;
y = yVelocity * -1;
}
}
因此，无论何时用户触摸屏幕上的下一次球，都会暂停在那里。并从您的Action.MOVE事件中删除touching = true;。
希望它会对你有所帮助。