画面の中央でアイコンを回転させるために次のように書きましたが、代わりに左上隅を中心に回転します(つまり、ImageViewのOrigin x = 0、y = 0)。 ImageViewまたはRotateAnimationのいくつかの属性を設定するのは簡単なはずですが、わかりません。
public class IconPromoActivity extends Activity {
private static final float ROTATE_FROM = 0.0f;
private static final float ROTATE_TO = -10.0f * 360.0f;// 3.141592654f * 32.0f;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
ImageView favicon = (ImageView) findViewById(R.id.favicon);
RotateAnimation r; // = new RotateAnimation(ROTATE_FROM, ROTATE_TO);
r = new RotateAnimation(ROTATE_FROM, ROTATE_TO, 0, 0, 40, 0);
r.setDuration((long) 2*1500);
r.setRepeatCount(0);
favicon.startAnimation(r);
}
}
試してください:r = new RotateAnimation(ROTATE_FROM, ROTATE_TO, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
これは私のために働く:
img = (ImageView)findViewById(R.id.ImageView01);
RotateAnimation rotateAnimation = new RotateAnimation(30, 90,
Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
完全な例はこちら
public class MainActivity extends AppCompatActivity implements MainActivityMvpModel {
ImageView imageViewThumb;
private static final float ROTATE_FROM = 30.0f;
private static final float ROTATE_TO = 360.0f;
RotateAnimation r; // = new RotateAnimation(ROTATE_FROM, ROTATE_TO);
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
buttonTest= (Button) findViewById(R.id.button_test);
imageViewThumb= (ImageView) findViewById(R.id.icon_thumb);
imageViewThumb.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
r = new RotateAnimation(ROTATE_FROM, ROTATE_TO, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
r.setDuration((long) 2*500);
r.setRepeatCount(0);
imageViewThumb.startAnimation(r);
imageViewThumb.setColorFilter(R.color.colorThumbPressed);
}
});
}
}