Android 放大缩小动画
单击图像时,我正在测试放大/缩小动画。但是我没有得到我想要的结果。图像会完全放大,但不会完全缩小。要更好地了解我的问题,请参阅 这是我的密码: 放大.XMLAndroid 放大缩小动画,android,animation,Android,Animation,单击图像时,我正在测试放大/缩小动画。但是我没有得到我想要的结果。图像会完全放大,但不会完全缩小。要更好地了解我的问题,请参阅 这是我的密码: 放大.XML <set xmlns:android="http://schemas.android.com/apk/res/android" android:fillAfter="true" > <scale xmlns:android="http://schemas.android.com/apk/res/android"
<set xmlns:android="http://schemas.android.com/apk/res/android" android:fillAfter="true" >
<scale
xmlns:android="http://schemas.android.com/apk/res/android"
android:duration="1000"
android:fromXScale="1"
android:fromYScale="1"
android:pivotX="50%"
android:pivotY="50%"
android:toXScale="3"
android:toYScale="3" >
</scale>
</set>
我的dailog动画风格
<style name="DialogAnimation">
<item name="android:windowEnterAnimation">@anim/zoom_in</item>
<item name="android:windowExitAnimation">@anim/zoom_out</item>
</style>
@动画/放大
@动画/缩小
按如下所示更改缩小代码并检查一次,如果不起作用,请告诉我
<set xmlns:android="http://schemas.android.com/apk/res/android" android:fillAfter="true" >
<scale
xmlns:android="http://schemas.android.com/apk/res/android"
android:duration="
1000"
android:fromXScale="1.0"
android:fromYScale="1.0"
android:pivotX="50%"
android:pivotY="50%"
android:toXScale="0"
android:toYScale="0" >
</scale>
使用此选项更改代码 zoom_in.xml
zoom_out.xml
这将为您带来好处。:) 试试这个
public class MainActivity extends Activity {
private ImageView iv;
private Matrix matrix = new Matrix();
private float scale = 1f;
private ScaleGestureDetector SGD;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
iv=(ImageView)findViewById(R.id.imageView);
SGD = new ScaleGestureDetector(this,new ScaleListener());
}
public boolean onTouchEvent(MotionEvent ev) {
SGD.onTouchEvent(ev);
return true;
}
private class ScaleListener extends ScaleGestureDetector.
SimpleOnScaleGestureListener {
@Override
public boolean onScale(ScaleGestureDetector detector) {
scale *= detector.getScaleFactor();
scale = Math.max(0.1f, Math.min(scale, 5.0f));
matrix.setScale(scale, scale);
iv.setImageMatrix(matrix);
return true;
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
这就是你要尝试的吗?如果你试图拍摄具有缩放功能的图像的点击事件,它将不会正确地点击它,因为动画只会更改视图的UI,而不会更改当前位置,所以当你点击缩放的图像时,它不会像你所说的那样点击它,但不会从图像的中心放大再次按下按钮,放大然后关闭如果你想让你的imageview放大缩小动画,使用这个库。我会照你说的看一看。放大和缩小并不是图像的中心。如果您共享视频,它现在看起来如何?
<set xmlns:android="http://schemas.android.com/apk/res/android" android:fillAfter="true" >
<scale
xmlns:android="http://schemas.android.com/apk/res/android"
android:duration="
1000"
android:fromXScale="1.0"
android:fromYScale="1.0"
android:pivotX="50%"
android:pivotY="50%"
android:toXScale="0"
android:toYScale="0" >
</scale>
<scale
android:duration="@android:integer/config_shortAnimTime"
android:fromXScale="0.3"
android:fromYScale="0.3"
android:pivotX="50%"
android:pivotY="50%"
android:toXScale="1.0"
android:toYScale="1.0" />
<scale
android:duration="@android:integer/config_shortAnimTime"
android:fromXScale="1.0"
android:fromYScale="1.0"
android:pivotX="50%"
android:pivotY="50%"
android:toXScale="0"
android:toYScale="0" />
public class MainActivity extends Activity {
private ImageView iv;
private Matrix matrix = new Matrix();
private float scale = 1f;
private ScaleGestureDetector SGD;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
iv=(ImageView)findViewById(R.id.imageView);
SGD = new ScaleGestureDetector(this,new ScaleListener());
}
public boolean onTouchEvent(MotionEvent ev) {
SGD.onTouchEvent(ev);
return true;
}
private class ScaleListener extends ScaleGestureDetector.
SimpleOnScaleGestureListener {
@Override
public boolean onScale(ScaleGestureDetector detector) {
scale *= detector.getScaleFactor();
scale = Math.max(0.1f, Math.min(scale, 5.0f));
matrix.setScale(scale, scale);
iv.setImageMatrix(matrix);
return true;
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}