public class PadActivity extends Activity {
/** Called when the activity is first created. */
private Button mButton;
private int intWidth,intHeight,intButtonX,intButtonY;
//存储屏幕的分辨率
private int intScreenX,intScreenY;
//按钮位移的平移量
private int intShift=2;
private int currX,currY;//当前坐标
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mButton=(Button) findViewById(R.id.mButton);
DisplayMetrics dm = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(dm);
intScreenX=dm.widthPixels;
intScreenY=dm.heightPixels;
//定义按钮的宽高
intWidth=80;
intHeight=80;
//初始化按钮剧中
RestoreButton();
mButton.setOnTouchListener(new OnTouchListener() {
public boolean onTouch(View v, MotionEvent event) {
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN: //取得当前坐标
currX = (int) event.getX();
currY = (int) event.getY();
//System.out.println("---"+currX+" "+currY);
break;
// 按钮跟焦点移动
case MotionEvent.ACTION_MOVE:
int dx=((int) event.getX())-currX;
int dy=((int) event.getY())-currY;
intButtonX+=dx;
intButtonY+=dy;
if (intButtonX<0) {
intButtonX=0;
}
if (intButtonX>(intScreenX-intWidth)) {
intButtonX=intScreenX-intWidth;
}
if (intButtonY<0) {
intButtonY=0;
}
if (intScreenY<(intButtonY+intHeight)) {
intButtonY=intScreenY-intHeight;
}
//System.out.println("--intButtonY "+intButtonY +" intScreenY "+intScreenY+" intHeight "+intHeight);
setButtonPos(intButtonX,intButtonY);
break;
default:
break;
}
return false;
}
});
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
switch (keyCode) {
case KeyEvent.KEYCODE_DPAD_CENTER:
RestoreButton();
break;
case KeyEvent.KEYCODE_DPAD_UP:
MoveButtonUp();
break;
case KeyEvent.KEYCODE_DPAD_DOWN:
MoveButtonDown();
break;
case KeyEvent.KEYCODE_DPAD_LEFT:
MoveButtonLeft();
break;
case KeyEvent.KEYCODE_DPAD_RIGHT:
MoveButtonRight();
break;
}
return super.onKeyDown(keyCode, event);
}
private void MoveButtonRight() {
intButtonX+=intShift;
if (intButtonX>(intScreenX-intWidth)) {
intButtonX=intScreenX-intWidth;
}
setButtonPos(intButtonX,intButtonY);
}
private void MoveButtonLeft() {
intButtonX-=intShift;
if (intButtonX<0) {
intButtonX=0;
}
setButtonPos(intButtonX,intButtonY);
}
private void MoveButtonDown() {
intButtonY=intButtonY+intShift;
if (intButtonY>(intScreenY-intHeight)) {
intButtonY=intScreenY-intHeight;
}
setButtonPos(intButtonX,intButtonY);
}
private void MoveButtonUp() {
intButtonY=intButtonY-intShift;
if (intButtonY<0) {
intButtonY=0;
}
setButtonPos(intButtonX,intButtonY);
}
@SuppressWarnings("deprecation")
private void setButtonPos(int intButtonX2, int intButtonY2) {
mButton.setLayoutParams(new AbsoluteLayout.LayoutParams(intWidth, intHeight, intButtonX2, intButtonY2));
System.out.println("("+Integer.toString(intButtonX)+","+Integer.toString(intButtonY)+")");
}
private void RestoreButton() {
initXY();
Toast.makeText(this, "("+Integer.toString(intButtonX)+","+Integer.toString(intButtonY)+")", Toast.LENGTH_LONG).show();
setButtonPos(intButtonX,intButtonY);
}
private void initXY() {
intButtonX=((intScreenX-intWidth)/2);
intButtonY=((intScreenY-intHeight)/2);
}
}

• 全局相关文章
• 相关文章