update download btn anim

app/src/main/java/com/base/browserwhite/ui/activity/webbrowser/WebViewFragment.kt

@@ -9,6 +9,7 @@ import android.app.Dialog
 import android.content.Context
 import android.net.Uri
 import android.net.http.SslError
+import android.util.Log
 import android.view.View
 import android.view.animation.AccelerateDecelerateInterpolator
 import android.view.animation.AccelerateInterpolator
@@ -27,6 +28,7 @@ import android.webkit.WebView
 import android.webkit.WebViewClient
 import androidx.core.view.isVisible
 import androidx.lifecycle.lifecycleScope
+import com.base.browserwhite.MyApplication
 import com.base.browserwhite.bean.BookmarkBean
 import com.base.browserwhite.bean.DownloadBean
 import com.base.browserwhite.bean.HistoryBean
@@ -43,6 +45,7 @@ import com.base.browserwhite.utils.DownloadUtils.saveDownloadRecordFile
 import com.base.browserwhite.utils.LogEx
 import com.base.browserwhite.utils.SpBeanUtils
 import com.base.browserwhite.utils.SpBeanUtils.HISTORY_SP_KEY
+import com.base.browserwhite.utils.Utils.dpToPx
 import com.google.gson.Gson
 import com.liulishuo.filedownloader.FileDownloader
 import kotlinx.coroutines.Dispatchers
@@ -121,18 +124,21 @@ class WebViewFragment : BaseFragment<FragmentWebViewBinding>() {
 
     fun dropAndBounceButton(button: View) {
         // 初始位置
+        button.isVisible = downloadList.isNotEmpty()
+
         val startTranslationY = button.translationY
 
         // 掉落位置
-        val dropTranslationY = (-button.height * 3).toFloat()
-        val dropTranslationY1 = (-button.height * 2).toFloat()
+        val dropTranslationY = -(MyApplication.context.dpToPx(60f)).toFloat()
+        val dropTranslationY1 = -(MyApplication.context.dpToPx(20f)).toFloat()
+        val dropTranslationY2 = -(MyApplication.context.dpToPx(20f)).toFloat()
 
         // 回弹高度
-        button.isVisible = downloadList.isNotEmpty()
         val animator = ValueAnimator.ofFloat(dropTranslationY, startTranslationY, dropTranslationY1 ,startTranslationY)
         animator.interpolator = AccelerateDecelerateInterpolator()
-        animator.duration = 3000
+        animator.duration = 1000
         animator.addUpdateListener { animation ->
+            Log.d("glc","animation:"+animation)
             // 更新按钮的位置
             button.translationY = animation.animatedValue as Float
         }