我想在每次用户触摸屏幕时更改图像。我想让用户点击屏幕,每次图像都会改变,在第5次触摸时,它会循环回原始图像并添加文字。
我看了
How would I set an ImageButton to change only when my finger is touching it
我已经尝试了IUevents和StateListdrawable。我无法弄清楚如何在每次触摸后(屏幕中的任何位置)实际更改图像。
答案 0 :(得分:1)
您需要创建自定义类,扩展ImageView现在将此imageview显示为整个屏幕。
> First store the path/location of images into an array/list etc.
> In custom class implement the onTouch event.
> create the counter object in this custom class.
> now in onTouch check in down event that check the counter value with array size if counter==array.length()-1 then set counter as 0 otherwise increment in counter object.
> now get the path of the image and set into the imageview as background
答案 1 :(得分:1)
为什么不能使用普通的ImageView?这样做:
ArrayList<Integer> picList = new ArrayList<Integer>();
// populate the list with the int value of the pictures in drawable.
picList.add(R.drawable.apple);
picList.add(R.drawable.horse);
//etc
int touches = 0;
int loop = 0;
ImageView picture = (ImageView) findViewById(R.id.your_picture);
picture.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (touches < 4)
v.setBackgroundDrawable(picList.get(touches));
touches++;
} else {
touches = 0;
loop = 1;
v.setBackgroundDrawable(picList.get(touches));
}
if (loop = 1){
// Create a TextView and set the text or make it in the xml with Visible="Gone" and make is visible here.
}
});