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我正在嘗試使用ObjectAnimator在android中移動按鈕。我希望視圖能夠移動，以便它不會與前一個位置重疊，也不會重疊。所以，當按下按鈕時，我計算新的位置，如new_location = Current_location_of_view + view_height。當移動時：new_location = Current_location_of_view + view_height。但爲了正常工作，我必須向上添加24dp（72p）的偏移量，在獲取當前視圖的位置時，通過減去72來實現此目的。這個抵消來自哪裏？ 我的猜測是view.getLocationOnScreen（）函數與ObjectAnimator.ofFloat（view，「y」，new_location）函數有不同的y軸起點，但我不知道爲什麼。這應該如何正確完成？使用objectAnimator在Android上移動視圖，獲得24dp（72p）的偏移量
我使用這個代碼：
private void moveViewUpMinimum(View view, int viewHeight){
int currentViewLocation = getViewLocation(view);
Log.e("Actual location", String.valueOf(currentViewLocation));
if(currentViewLocation >viewHeight){
//if there is enough space on top of the screen
ObjectAnimator objectAnimator = ObjectAnimator.ofFloat(view, "y", currentViewLocation-viewHeight);
Log.e("Set location:", String.valueOf(currentViewLocation-viewHeight));
objectAnimator.setDuration(100);
objectAnimator.start();
}
else{
//if no more room move the view down
ObjectAnimator objectAnimator = ObjectAnimator.ofFloat(view, "y", screenHeight-viewHeight);
objectAnimator.setDuration(100);
objectAnimator.start();
}
}
private void moveViewDownMinimum(View view, int viewHeight){
int currentViewLocation = getViewLocation(view);
Log.e("Actual location", String.valueOf(currentViewLocation));
if(screenHeight - currentViewLocation >= 2*viewHeight){
//if there is enough space on the bottom of the screen
ObjectAnimator objectAnimator = ObjectAnimator.ofFloat(view, "y", currentViewLocation+viewHeight);
Log.e("Set location:", String.valueOf(currentViewLocation+viewHeight));
objectAnimator.setDuration(100);
objectAnimator.start();
}
else{
//if no more room move the view up
ObjectAnimator objectAnimator = ObjectAnimator.ofFloat(view, "y", 0);
objectAnimator.setDuration(100);
objectAnimator.start();
}
}
private int getViewLocation(View view){
int buttonLoc[] = {0, 0};
view.getLocationOnScreen(buttonLoc);
return buttonLoc[1]-72;//where does this offset come from???
}