我试图在一个动画中缩放
ImageView,但是每当我这样做,它似乎在布局中向下移动并离开.这是截图之前我动画:
而在动画之后它看起来像什么:
ImageView缩放可以缩小,但左上角是否保留在布局的左上角?
这是我正在使用的代码:
// ScaleTestActivity.java import android.animation.AnimatorSet; import android.animation.ObjectAnimator; import android.app.Activity; import android.os.Bundle; import android.widget.ImageView; public class ScaleTestActivity extends Activity { ImageView mImageView; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); mImageView = (ImageView)findViewById(R.id.image_view); } @Override protected void onResume() { super.onResume(); ObjectAnimator scaleDownX = ObjectAnimator.ofFloat(mImageView,"scaleX",0.5f); ObjectAnimator scaleDownY = ObjectAnimator.ofFloat(mImageView,"scaleY",0.5f); scaleDownX.setDuration(1000); scaleDownY.setDuration(1000); AnimatorSet scaleDown = new AnimatorSet(); scaleDown.play(scaleDownX).with(scaleDownY); scaleDown.start(); } }
布局:
<!-- main.xml --> <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent"> <ImageView android:id="@+id/image_view" android:src="@drawable/droid" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentTop="true" android:layout_alignParentLeft="true" /> </RelativeLayout>
可抽取资源:
解决方法
您可以尝试将视图的pivotX和pivotY设置为0.从这一点开始缩放.我认为这样会很好.