代码块:
WindowManager wm = (WindowManager) MainActivity.this.getSystemService(Context.WINDOW_SERVICE);
DisplayMetrics dm = new DisplayMetrics();
wm.getDefaultDisplay().getMetrics(dm);
int width = dm.widthPixels; // 屏幕宽度(像素)
int height = dm.heightPixels; // 屏幕高度(像素)
float density = dm.density; // 屏幕密度(0.75 / 1.0 / 1.5)
int densityDpi = dm.densityDpi; // 屏幕密度dpi(120 / 160 / 240)
// 屏幕宽度算法:屏幕宽度(像素)/屏幕密度
float screenWidth = (width / density); // 屏幕宽度(dp)
float screenHeight = (height / density);// 屏幕高度(dp)
ObjectAnimator translationY = ObjectAnimator.ofFloat(imageView, "translationY", new float[]{0f,screenHeight+260});
translationY.setDuration(8000);
translationY.start();
ObjectAnimator translationX = ObjectAnimator.ofFloat(imageView, "translationX", new float[]{0f,-(screenWidth+185)});
translationX.setDuration(8000);
translationX.start();
ObjectAnimator alpha = ObjectAnimator.ofFloat(imageView, "alpha", new float[]{1.0f, 0.8f, 0.6f, 0.4f, 0.2f,0.4f,0.6f,0.8f,1.0f});
alpha.setDuration(8000);
alpha.start();
translationY.addListener(new Animator.AnimatorListener() {
@Override
public void onAnimationStart(Animator animator) {
}
@Override
public void onAnimationEnd(Animator animator) {
imageView.setVisibility(View.VISIBLE);
}
@Override
public void onAnimationCancel(Animator animator) {
}
@Override
public void onAnimationRepeat(Animator animator) {
}
});
//处理图片的点击
if(!flag){
//设置图片
imageView.setImageResource(R.mipmap.xin_two);
flag = true;
}else{
imageView.setImageResource(R.mipmap.xin);
flag = false;
}