问题描述
我用我自己的GestureDetector类检测左|右onFling事件。我看到的一切看起来在我的code不错,但没有任何反应......?
我需要超出了我的切换按钮附加功能打开|关闭我的片段导航视图。在我AnimationLayout类中的方法的切换调用如下:
公共无效toggleSidebar()
{
如果(mContent.getAnimation()!= NULL)
{
返回;
}
如果(mOpened)
{
/ *打开,使关闭动画* /
mAnimation =新TranslateAnimation(0,-mSidebarWidth,0,0);
mAnimation.setAnimationListener(mCloseListener);
} 其他
{
/ *不开,让开动画* /
mAnimation =新TranslateAnimation(0,mSidebarWidth,0,0);
mAnimation.setAnimationListener(mOpenListener);
}
mAnimation.setDuration(持续时间);
mAnimation.setFillAfter(真正的);
mAnimation.setFillEnabled(真正的);
mContent.startAnimation(mAnimation);
}
和
公共无效openSidebar()
{
如果(!mOpened)
{
toggleSidebar();
}
}
公共无效closeSidebar()
{
如果(mOpened)
{
toggleSidebar();
}
}
在我的主要活动的onFling()上的切换子称:
公共静态AnimationLayout mLayout;
//这些常量用于onFling
私有静态最终诠释SWIPE_MIN_DISTANCE = 120;
私有静态最终诠释SWIPE_MAX_OFF_PATH = 250;
私有静态最终诠释SWIPE_THRESHOLD_VELOCITY = 200;
私人GestureDetector gestureDetector;
@覆盖
公共无效的onCreate(包savedInstanceState){
super.onCreate(savedInstanceState);
的setContentView(R.layout.main);
mLayout =(AnimationLayout)findViewById(R.id.animation_layout);
gestureDetector =新GestureDetector(this.getApplicationContext(),新MyGestureDetector());
//设置触摸侦听器的主要观点是我们的自定义手势
//监听器
mLayout.setOnTouchListener(新View.OnTouchListener(){
公共布尔onTouch(视图V,MotionEvent事件){
如果(gestureDetector.onTouchEvent(事件)){
返回true;
}
返回false;
}
});
}
类MyGestureDetector扩展SimpleOnGestureListener {
@覆盖
公共布尔onFling(MotionEvent E1,E2 MotionEvent,浮velocityX,浮velocityY){
如果(Math.abs(e1.getY() - e2.getY())> SWIPE_MAX_OFF_PATH){
返回false;
}
//从右向左轻扫
如果(e1.getX() - e2.getX()> SWIPE_MIN_DISTANCE&安培;&安培; Math.abs(velocityX)> SWIPE_THRESHOLD_VELOCITY){
Toast.makeText(getApplicationContext(),RIGHT_LEFT,Toast.LENGTH_LONG).show();
Log.i(MyGestureDetector,R2L!);
mLayout.closeSidebar();
//从左向右轻扫
}否则,如果(e2.getX() - e1.getX()> SWIPE_MIN_DISTANCE和放大器;&安培; Math.abs(velocityX)> SWIPE_THRESHOLD_VELOCITY){
Toast.makeText(getApplicationContext(),LEFT_RIGHT,Toast.LENGTH_LONG).show();
Log.i(MyGestureDetector,L2R!);
mLayout.openSidebar();
}
返回false;
}
//返回true从onDown的onFling事件登记
@覆盖
公共布尔onDown(MotionEvent E){
返回true;
}
}
此按钮正常工作:
...
案例R.id.navToggleBtn:{
mLayout.toggleSidebar();
}
...
我给信贷@Devunwired,因为他上面的建议:
于是我说:
查看swipeView =(查看)findViewById(R.id.animation_layout_content);
swipeView .setOnTouchListener(新View.OnTouchListener(){...});
现在奇妙的作品。
I'm using my own GestureDetector class to detect a left|right onFling event. Everything I see looks good in my code but nothing happens...?
I need the added functionality beyond my toggle button that opens|closes a navigation view in my fragments. The toggle calls on a method in my AnimationLayout class as follows:
public void toggleSidebar()
{
if (mContent.getAnimation() != null)
{
return;
}
if (mOpened)
{
/* opened, make close animation */
mAnimation = new TranslateAnimation(0, -mSidebarWidth, 0, 0);
mAnimation.setAnimationListener(mCloseListener);
} else
{
/* not opened, make open animation */
mAnimation = new TranslateAnimation(0, mSidebarWidth, 0, 0);
mAnimation.setAnimationListener(mOpenListener);
}
mAnimation.setDuration(DURATION);
mAnimation.setFillAfter(true);
mAnimation.setFillEnabled(true);
mContent.startAnimation(mAnimation);
}
and...
public void openSidebar()
{
if (!mOpened)
{
toggleSidebar();
}
}
public void closeSidebar()
{
if (mOpened)
{
toggleSidebar();
}
}
Within my Main Activity the onFling() calls on the toggle sub:
public static AnimationLayout mLayout;
// these constants are used for onFling
private static final int SWIPE_MIN_DISTANCE = 120;
private static final int SWIPE_MAX_OFF_PATH = 250;
private static final int SWIPE_THRESHOLD_VELOCITY = 200;
private GestureDetector gestureDetector;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mLayout = (AnimationLayout) findViewById(R.id.animation_layout);
gestureDetector = new GestureDetector(this.getApplicationContext(), new MyGestureDetector());
// Set the touch listener for the main view to be our custom gesture
// listener
mLayout.setOnTouchListener(new View.OnTouchListener() {
public boolean onTouch(View v, MotionEvent event) {
if (gestureDetector.onTouchEvent(event)) {
return true;
}
return false;
}
});
}
class MyGestureDetector extends SimpleOnGestureListener {
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
if (Math.abs(e1.getY() - e2.getY()) > SWIPE_MAX_OFF_PATH) {
return false;
}
// right to left swipe
if (e1.getX() - e2.getX() > SWIPE_MIN_DISTANCE && Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY) {
Toast.makeText(getApplicationContext(), "right_left", Toast.LENGTH_LONG).show();
Log.i("MyGestureDetector", "R2L!");
mLayout.closeSidebar();
// left to right swipe
} else if (e2.getX() - e1.getX() > SWIPE_MIN_DISTANCE && Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY) {
Toast.makeText(getApplicationContext(), "left_right", Toast.LENGTH_LONG).show();
Log.i("MyGestureDetector", "L2R!");
mLayout.openSidebar();
}
return false;
}
// Return true from onDown for the onFling event to register
@Override
public boolean onDown(MotionEvent e) {
return true;
}
}
This Button works fine:
...
case R.id.navToggleBtn : {
mLayout.toggleSidebar();
}
...
I give credit to @Devunwired as he suggested above:
So I added:
View swipeView = (View) findViewById(R.id.animation_layout_content);
swipeView .setOnTouchListener(new View.OnTouchListener() {...});
Which works wonderfully now.
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