我在清单中使用了 android:windowSoftInputMode =“adjustResize”来阻止键盘隐藏活动按钮。它可以工作,但是当键盘打开时,我的按钮会向上移动。它有点跳跃,我想知道 - 我可以有任何动画来顺利过渡吗?
<activity
android:name=".Activity"
android:screenOrientation="portrait"
android:windowSoftInputMode="adjustResize">
</activity>
答案 0 :(得分:4)
方法setSoftInputMode(int)
无法覆盖,其实施位于Window
级内,我不认为可以用您自己的方式替换当前窗口。您也无法从WindowManager
进行管理
您可以在ViewGroup
上创建一个监听器,并在SoftKeyboard
打开和关闭时捕获修改的布局。实际上,当SKB出现时,容器的布局会重新绘制并改变其高度。通过此活动,您可以设法在视图子项上设置Animation
并实现平滑效果。
编辑:解决方案by using a GlobalLayoutListener
on the rootview也可以代替(下面介绍的解决方案:)创建自定义视图组类。
您必须创建自己的视图组并将其作为布局中的父容器。它将实现一个接口,该接口将在UI类(Activity
,Fragment
,无论如何)中处理。我找到了this blog to detect the events on SKB for (~)all versions。根据它,这里是视图组的类来处理高度的变化:
public class ContainerViewHandler extends RelativeLayout {
private boolean isKeyboardShown;
private onKeyboardStateChange listener;
public ContainerViewHandler(Context context) {
super(context);
}
public ContainerViewHandler(Context context, AttributeSet attrs) {
super(context, attrs);
}
public ContainerViewHandler(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
public void setKeyboardStateListener(onKeyboardStateChange listener) {
this.listener = listener;
}
// Callbacks
public interface onKeyboardStateChange {
void onKeyboardShow();
void onKeyboardHide();
}
@Override
public boolean dispatchKeyEventPreIme(@NonNull KeyEvent event) {
if (event.getKeyCode() == KeyEvent.KEYCODE_BACK) {
// Keyboard is hiding
if (isKeyboardShown) {
isKeyboardShown = false;
listener.onKeyboardHide();
}
}
return super.dispatchKeyEventPreIme(event);
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
final int proposedHeight = MeasureSpec.getSize(heightMeasureSpec);
final int actualHeight = getHeight();
if (actualHeight > proposedHeight) {
// Keyboard is showing
if (!isKeyboardShown) {
isKeyboardShown = true;
listener.onKeyboardShow();
}
}
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}
}
现在,您已在布局中添加此视图组(例如<com.package.name.ContainerViewHandler .../>
)。然后,您必须在活动中实现上述接口setKeyboardStateListener
,如下所示:
ContainerViewHandler containerView =
(ContainerViewHandler) findViewById(R.id.container_view);
containerView.setKeyboardStateListener(new ContainerHandler.onKeyboardStateChange() {
@Override
public void onKeyboardShow() {
Log.v("onKeyboardShow()", "SoftKeyboard is showing. Hello!");
}
@Override
public void onKeyboardHide() {
Log.v("onKeyboardHide()", "SoftKeyboard is hiding, Bye bye!");
}
});
因此,您可以管理不同的动画来处理和阻止按钮跳转&#34;直接位于SKB上方。为了测试这一点,我尝试重现一个反弹效果:
我的实现如下:
containerView.setKeyboardStateListener(new ContainerViewHandler.onKeyboardStateChange() {
@Override
public void onKeyboardShow() {
setAnimationUp();
}
@Override
public void onKeyboardHide() {
setAnimationDown();
}
});
private void setAnimationUp() {
footerButton.setVisibility(View.GONE);
float dpY = AppUtils.convertPxToDp(20, this); // custom conversion method
Animation a1 = new TranslateAnimation(0, 0, footerButton.getHeight() * 4, -(dpY));
a1.setDuration(250);
a1.setFillAfter(true);
final Animation a2 = new TranslateAnimation(0, 0, -(dpY), 0);
a2.setDuration(320);
a2.setFillAfter(true);
a1.setAnimationListener(new Animation.AnimationListener() {
@Override
public void onAnimationStart(Animation animation) {
footerButton.setVisibility(View.VISIBLE);
}
@Override
public void onAnimationEnd(Animation animation) {
footerButton.startAnimation(a2);
}
@Override
public void onAnimationRepeat(Animation animation) { }
});
footerButton.startAnimation(a1);
}
private void setAnimationDown() {
float dpY = AppUtils.convertPxToDp(30, this); // custom conversion method
Animation b1 = new TranslateAnimation(0, 0, -(dpY), dpY);
b1.setDuration(300);
b1.setFillAfter(true);
final Animation b2 = new TranslateAnimation(0, 0, dpY, 0);
b2.setDuration(320);
b2.setFillAfter(true);
b1.setAnimationListener(new Animation.AnimationListener() {
@Override
public void onAnimationStart(Animation animation) { }
@Override
public void onAnimationEnd(Animation animation) {
footerButton.startAnimation(b2);
}
@Override
public void onAnimationRepeat(Animation animation) { }
});
footerButton.startAnimation(b1);
}
我首先在第一个回调中设置两个动画(a1,a2):
4xbutton's height
)下面(后面)开始,然后在20dp
之上,20dp
开始并返回0dp
(正常位置)。第二个回调中还有另外两个(b1,b2):
30dp
开始,到父容器外的30dp
,30dp
到0dp
(初始位置)。 PS:不要忘记在清单中使用adjustResize
并制作内容(例如我的测试中的edittexts)above
页脚按钮alignParentBottom
为真