Android 解決鍵盤遮擋輸入框

在安卓中通常可以通過添加android:windowSoftInputMode="adjustResize|stateHidden"的方式來讓鍵盤頂起布局，但是如果對狀態欄進行過著色隱藏等操作時，這個配置將不會生效，此時輸入框輸入時鍵盤仍然不會將布局抬起

經過一番搜索和驗證，可以使用AndroidBug5497Workaround來解決問題，但是現今此方案已無法完美適配底部導航欄的情況，所以我基于之前的方案進行了優化

代碼實現

將AdjustResizeHelper.kt類Copy進你的項目，需要注意的是這是kotlin語法

import android.annotation.SuppressLint
import android.app.Activity
import android.content.Context
import android.graphics.Rect
import android.os.Build
import android.view.View
import android.view.WindowInsetsobject AdjustResizeHelper {fun supportAdjustResize(activity: Activity) {val decorView = activity.window.decorViewvar usableHeightPrevious = 0if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {decorView.setOnApplyWindowInsetsListener { v, insets ->val usableHeightNow = computeUsableHeight(decorView)if (usableHeightPrevious == usableHeightNow) {return@setOnApplyWindowInsetsListener insets}usableHeightPrevious = usableHeightNowval imeInsets = insets.getInsets(WindowInsets.Type.ime())val navigationBars = insets.getInsets(WindowInsets.Type.navigationBars())val keyboardHeight = imeInsets.bottom - navigationBars.bottomif (keyboardHeight > 0) {decorView.setPadding(0, 0, 0, keyboardHeight)} else {decorView.setPadding(0, 0, 0, 0)}v.onApplyWindowInsets(insets)}} else {decorView.viewTreeObserver.addOnGlobalLayoutListener {val usableHeightNow = computeUsableHeight(decorView)if (usableHeightPrevious == usableHeightNow) {return@addOnGlobalLayoutListener}usableHeightPrevious = usableHeightNowval rect = Rect()decorView.getWindowVisibleDisplayFrame(rect)val screenHeight = decorView.heightval heightDifference = screenHeight - rect.bottom - getNavigationBarHeight(activity)if (heightDifference > 100) { // 軟鍵盤彈出decorView.setPadding(0, 0, 0, heightDifference)} else { // 軟鍵盤隱藏decorView.setPadding(0, 0, 0, 0)}}}}@SuppressLint("InternalInsetResource")fun getNavigationBarHeight(context: Context): Int {val resources = context.resourcesval resourceId = resources.getIdentifier("navigation_bar_height","dimen","android")return if (resourceId > 0) {resources.getDimensionPixelSize(resourceId)} else 0}private fun computeUsableHeight(view: View): Int {val r = Rect()view.getWindowVisibleDisplayFrame(r)return (r.bottom - r.top)}
}

使用

使用起來很簡單，先在Activity的配置中添加android:windowSoftInputMode="adjustResize|stateHidden"，然后如下圖在Activity的onCreate回調中添加此功能即可

注意

因為使用通話的雙通道麥克風實現了降噪，所以使用時可能聲音較小，如果沒有聲音，請將聲音調到最大，然后湊近麥克風吼兩句"感謝博主，我會一鍵三連的"

最后我還有一句話要說

梧桐葉上三更雨，葉葉聲聲是別離。

周紫芝《鷓鴣天·一點殘紅欲盡時》