public classCustomToastimplementsView.OnTouchListener {
privateWindowManagermWM;
//? private View tvCustom;
private finalWindowManager.LayoutParamsmParams=newWindowManager.LayoutParams();
privateContextmContext;
private floatstartX;
private floatstartY;
privateTextViewtvCustom;
publicCustomToast(Context context) {
this.mContext= context;
//得到WindowManager對象
mWM= (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
tvCustom=newTextView(mContext);
tvCustom.setOnTouchListener(this);
mParams.height= WindowManager.LayoutParams.WRAP_CONTENT;
mParams.width= WindowManager.LayoutParams.WRAP_CONTENT;
mParams.flags= WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
| WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON;
mParams.format= PixelFormat.TRANSLUCENT;
mParams.type= WindowManager.LayoutParams.TYPE_TOAST;
mParams.type= WindowManager.LayoutParams.TYPE_PRIORITY_PHONE;
mParams.gravity= Gravity.CENTER_VERTICAL| Gravity.RIGHT;
mParams.setTitle("Toast");
}
@Override
public booleanonTouch(View v,MotionEvent event) {
intaction = event.getAction();
DisplayMetrics outMetrics =newDisplayMetrics();
mWM.getDefaultDisplay().getMetrics(outMetrics);
switch(action) {
caseMotionEvent.ACTION_DOWN:
startX= event.getRawX();
startY= event.getRawY();
break;
caseMotionEvent.ACTION_MOVE:
floatmoveX = event.getRawX();
floatmoveY = event.getRawY();
floatdiffX = moveX -startX;
floatdiffY = moveY -startY;
mParams.x-= diffX;
mParams.y+= diffY;
//更新視圖
mWM.updateViewLayout(tvCustom,mParams);
// 重置前一個點
startX= moveX;
startY= moveY;
break;
caseMotionEvent.ACTION_UP:
// X軸方向的動畫
intstartX =mParams.x;
intendX = outMetrics.widthPixels;
if(endX /2> startX) {
endX =0;
}
ValueAnimator animatorX = ValueAnimator.ofInt(startX,endX);
animatorX.setDuration(300);
animatorX.addUpdateListener(newValueAnimator.AnimatorUpdateListener() {
@Override
public voidonAnimationUpdate(ValueAnimator animator) {
intvalue = (Integer) animator.getAnimatedValue();
mParams.x= value;
mWM.updateViewLayout(tvCustom,mParams);
}
});
//Y軸方向的動畫
intstartY =mParams.y;//Y軸的其實位置
intendY =0;//Y軸的結(jié)束位置
ValueAnimator animatorY = ValueAnimator.ofInt(startY,endY);
animatorY.setDuration(300);
animatorY.addUpdateListener(newValueAnimator.AnimatorUpdateListener() {
@Override
public voidonAnimationUpdate(ValueAnimator animator) {
intvalue = (Integer) animator.getAnimatedValue();
mParams.y= value;
mWM.updateViewLayout(tvCustom,mParams);
}
});
//設置動畫集合
AnimatorSet set =newAnimatorSet();
set.playTogether(animatorX);
set.start();
break;
default:
break;
}
return true;
}
public voidshow(String s) {
tvCustom.setText(s);
mWM.addView(tvCustom,mParams);
}
public voidhide() {
if(tvCustom!=null) {
if(tvCustom.getParent() !=null) {
mWM.removeView(tvCustom);
}
//把view設置為null
tvCustom=null;
}
}}
