在某些时候，我们Android并不能像iOS那样，在webview中点击键盘并且被抬起，需要我们去做处理
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第一种是使用 AndroidBug5497Workaround 这个方法，但是这方法在华为手机和又底部虚拟按键的手机底部会有变形
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第二种方式就是动态改变webveiw的 setMargins 距离bootom的距离监听，这个高度就是键盘的高度，因为目的就是不让键盘盖住输入框 所以高出这个高度就可以了。
//处理键盘弹出遮挡输入框问题
val lp = ConstraintLayout.LayoutParams(ConstraintLayout.LayoutParams.MATCH_PARENT, 0)
lp.topToBottom = iv_back.id
lp.leftToLeft = vm_parent.id
lp.rightToRight = vm_parent.id
lp.bottomToBottom = vm_parent.id
SoftKeyboardUtils().apply {
var webBottomHeight: Int = 0
getSoftKeyboardHeight(
webView_content,
object : SoftKeyboardUtils.OnGetSoftHeightListener {
override fun onShowed(height: Int) {
webBottomHeight = height
"height = $height".logI("SoftKeyboardUtils")
}
})
doMonitorSoftKeyWord(
webView_content,
object : SoftKeyboardUtils.OnSoftKeyWordShowListener {
override fun hasShow(isShow: Boolean) {
// "isShow = $isShow".logI("SoftKeyboardUtils")
if (onPageFinish)
isShow.thenNoResult {
lp.setMargins(0, 0, 0, webBottomHeight)
webView_content.layoutParams = lp
} elseNoResult {
lp.setMargins(0, 0, 0, 0)
webView_content.layoutParams = lp
}
}
})
}
import android.graphics.Rect
import android.view.View
import android.view.ViewTreeObserver.OnGlobalLayoutListener
class SoftKeyboardUtils {
private var isFirst = true
interface OnGetSoftHeightListener {
fun onShowed(height: Int)
}
interface OnSoftKeyWordShowListener {
fun hasShow(isShow: Boolean)
}
/** * 获取软键盘的高度 * *
* @param rootView *
* @param listener
*/
fun getSoftKeyboardHeight(
rootView: View,
listener: OnGetSoftHeightListener?
) {
val layoutListener: OnGlobalLayoutListener = object : OnGlobalLayoutListener {
override fun onGlobalLayout() {
if (isFirst) {
val rect = Rect()
rootView.getWindowVisibleDisplayFrame(rect)
val screenHeight: Int = rootView.rootView.height
val heightDifference: Int = screenHeight - rect.bottom
//设置一个阀值来判断软键盘是否弹出
val visible = heightDifference > screenHeight / 3
if (visible) {
isFirst = false
listener?.onShowed(heightDifference)
rootView.viewTreeObserver.removeOnGlobalLayoutListener(this)
}
}
}
}
rootView.viewTreeObserver.addOnGlobalLayoutListener(layoutListener)
}
/** * 判断软键盘是否弹出
* * @param rootView
* @param listener
* 备注：在不用的时候记得移除OnGlobalLayoutListener
*/
fun doMonitorSoftKeyWord(
rootView: View,
listener: OnSoftKeyWordShowListener?
): OnGlobalLayoutListener? {
val layoutListener = OnGlobalLayoutListener {
val rect = Rect()
rootView.getWindowVisibleDisplayFrame(rect)
val screenHeight: Int = rootView.rootView.height
// (rect.bottom.toString() + "#" + screenHeight).logI()
val heightDifference: Int = screenHeight - rect.bottom
val visible = heightDifference > screenHeight / 3
listener?.hasShow(visible)
}
rootView.viewTreeObserver.addOnGlobalLayoutListener(layoutListener)
return layoutListener
}
}
- 当键盘收起的时候在恢复高度就可以了
