当用户触摸屏幕的右侧或左侧时,如何使用OnTouchEvent
功能向右或向左移动ImageView
?以下代码是我尝试过的。我该怎么做才能改善这一点并使其发挥作用?
ImageView circle1 = (ImageView) findViewById(R.id.circle1);
public boolean onTouchEvent(MotionEvent MotionEvent motionEvent;
motionEvent){
switch (motionEvent.getAction() & MotionEvent.ACTION_MASK) {
// Player has touched the screen
case MotionEvent.ACTION_DOWN:
if (motionEvent.getY() > screenHeight - screenWidth / 8) {
circleIsMovingRIGHT = true;
circleIsMovingLEFT = false;
} else {
circleIsMovingRIGHT = false;
circleIsMovingLEFT = true;
}
break;
}
return true;
}
}
答案 0 :(得分:1)
试试这个,
@SuppressLint("ClickableViewAccessibility")
@Override
public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
anyView.setOnTouchListener(this);
}
@Override
public boolean onTouch(View v, MotionEvent event) {
switch (v.getId()) {
case R.id.anyView:
if (event.getAction() == MotionEvent.ACTION_DOWN) {
// perform here
}
break;
}
return false;
}
在res / anim / rotate.xml
中添加此代码<?xml version="1.0" encoding="UTF-8"?>
<rotate
xmlns:android="http://schemas.android.com/apk/res/android"
android:fromDegrees="0"
android:toDegrees="360"
android:pivotX="50%"
android:pivotY="50%"
android:repeatCount="infinite"
android:duration="1200"
android:interpolator="@android:anim/linear_interpolator"/>
在“// perform here”处添加此代码以进行旋转视图(组件)
imageView.startAnimation(AnimationUtils.loadAnimation(context,R.anim.rotate));
如果您使用android:repeatCount =“infinite”,那么您将动态停止旋转,在特定条件下应用此代码
imageView.clearAnimation();