需要帮助在旋转图像视图中使用动画进行方向更改(4侧旋转)的动画 [英] Need help on rotating image view with animation on orientation change (4 side rotation) in android
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问题描述
我有一个图像视图,我需要在android(人像,风景,反向人像和反向风景)的方向变化时旋转(使用IOS,如动画)图像视图。
i have a image view and i need to rotate(with IOS like animation) the image view on orientation change in android(portrait,landscape,reverse portrait and reverse landscape).
请咨询
void rotateAndSet(int angle) {
if (currentAngle != angle || currentImage != currentBaseImage) { // This
// is
// to
// remove
// unnecessary
// drawing
currentAngle = angle;
currentImage = currentBaseImage;
myImg = decodeBase64(currentBaseImage);
matrix = new Matrix();
matrix.postRotate(angle);
Bitmap rotated = Bitmap.createBitmap(myImg, 0, 0, myImg.getWidth(),
myImg.getHeight(), matrix, true);
RelativeLayout.LayoutParams param = new RelativeLayout.LayoutParams(
LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
param.addRule(RelativeLayout.ALIGN_PARENT_TOP);
/*RotateAnimation animation = new RotateAnimation(0, 90,Animation.RELATIVE_TO_SELF,0.5f,Animation.RELATIVE_TO_SELF,0.5f);
animation.setInterpolator(new LinearInterpolator());
animation.setFillAfter(true);
animation.setDuration(800);
ivFullScreen.startAnimation(animation); */
ivFullScreen.setLayoutParams(param);
ivFullScreen.setImageBitmap(rotated);
}
}
推荐答案
我得到了
public void onSensorChanged(SensorEvent event){
public void onSensorChanged(SensorEvent event) {
synchronized (this) {
if (event.sensor.getType() == Sensor.TYPE_ACCELEROMETER) {
RotateAnimation animation = null;
if (event.values[0] < 4 && event.values[0] > -4) {
if (event.values[1] > 0 && orientation != ExifInterface.ORIENTATION_ROTATE_90) {
// UP
orientation = ExifInterface.ORIENTATION_ROTATE_90;
Log.i("testme","up");
animation = getRotateAnimation(0);
degrees = 0;
} else if (event.values[1] < 0 && orientation != ExifInterface.ORIENTATION_ROTATE_270) {
// UP SIDE DOWN
Log.i("testme","up side down");
orientation = ExifInterface.ORIENTATION_ROTATE_270;
animation = getRotateAnimation(180);
degrees = 180;
}
} else if (event.values[1] < 4 && event.values[1] > -4) {
if (event.values[0] > 0 && orientation != ExifInterface.ORIENTATION_NORMAL) {
// LEFT
Log.i("testme","left");
orientation = ExifInterface.ORIENTATION_NORMAL;
animation = getRotateAnimation(-270);
degrees =-270;
} else if (event.values[0] < 0 && orientation != ExifInterface.ORIENTATION_ROTATE_180) {
// RIGHT
Log.i("testme","right");
orientation = ExifInterface.ORIENTATION_ROTATE_180;
animation = getRotateAnimation(270);
degrees = 270;
}
}
if (animation != null) {
ivFullScreen.startAnimation(animation);
}
}
}
}
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