我想在android延伸按鈕做一個自定義按鈕。當我點擊按鈕時,它會翻轉180度並顯示按鈕的後面圖像。這意味着按鈕將有兩個圖像。當它被點擊時,它將隨着沿着y軸的旋轉動畫而改變。如何翻轉android按鈕
任何幫助表示讚賞。謝謝。
我想在android延伸按鈕做一個自定義按鈕。當我點擊按鈕時,它會翻轉180度並顯示按鈕的後面圖像。這意味着按鈕將有兩個圖像。當它被點擊時,它將隨着沿着y軸的旋轉動畫而改變。如何翻轉android按鈕
任何幫助表示讚賞。謝謝。
我會使用ScaleAnimation
,它會將按鈕拉伸到0 px寬度,然後將其拉伸回100%。當按鈕具有最小寬度時,背景和文本應該改變,以顯示背面。
起初對我可憐的恩抱歉。 ,之後...
佈局 - > flip.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/root"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<Button
android:id="@+id/front"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#ff00546c"
android:clickable="true"
android:onClick="onButtonClick"/>
<Button
android:id="@+id/back"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#000"
android:clickable="true"
android:onClick="onButtonClick"
android:visibility="gone"/>
</RelativeLayout>
定義你的按鈕或任何觀點聽到你的第一和第二側。
您的活動添加此部分
public void onButtonClick(View view)
{
flipView();
}
private void flipView()
{
View rootLayout = findViewById(R.id.root);
View viewFace = findViewById(R.id.front);
View viewBack = findViewById(R.id.back);
FlipAnimation flipAnimation = new FlipAnimation(viewFace , viewBack);
if (viewFace.getVisibility() == View.GONE)
{
flipAnimation.reverse();
}
rootLayout.startAnimation(flipAnimation);
}
這部分代碼開始翻轉動畫,最後一部分...
FlipAnimation.java
public class FlipAnimation extends Animation {
private Camera camera;
private View fromView;
private View toView;
private float centerX;
private float centerY;
private boolean forward = true;
public FlipAnimation(View fromView, View toView) {
this.fromView = fromView;
this.toView = toView;
setDuration(700);
setFillAfter(false);
setInterpolator(new AccelerateDecelerateInterpolator());
}
public void reverse() {
forward = false;
View switchView = toView;
toView = fromView;
fromView = switchView;
}
@Override
public void initialize(int width, int height, int parentWidth, int parentHeight) {
super.initialize(width, height, parentWidth, parentHeight);
centerX = width/2;
centerY = height/2;
camera = new Camera();
}
@Override
protected void applyTransformation(float interpolatedTime, Transformation t)
{
final double radians = Math.PI * interpolatedTime;
float degrees = (float) (180.0 * radians/Math.PI);
if (interpolatedTime >= 0.5f) {
degrees -= 180.f;
fromView.setVisibility(View.GONE);
toView.setVisibility(View.VISIBLE);
}
if (forward)
degrees = -degrees; //determines direction of rotation when flip begins
final Matrix matrix = t.getMatrix();
camera.save();
camera.translate(0, 0, Math.abs(degrees)*2);
camera.getMatrix(matrix);
camera.rotateY(degrees);
camera.getMatrix(matrix);
camera.restore();
matrix.preTranslate(-centerX, -centerY);
matrix.postTranslate(centerX, centerY);
}
}
享受!
還有一件事,我發現這個代碼在堆棧之前,但沒有找到答案鏈接。有些人願意這個有用的代碼。
https://github.com/stormzhang/FlipLayout - 使用此庫。它易於使用,適合你。