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feat(#1): avoid soft input view, set avoid offset method
AvoidSoftInputView introduces possibility to apply translation/bottom padding
to custom content (e.g. form rendered in modal)
setAvoidOffset introduces possibility of increasing/decreasing soft input
translation/padding applied to root view/scroll view
BREAKING CHANGE: now all set* functions are available under AvoidSoftInput object
```js
// import * as AvoidSoftinput from 'react-native-avoid-softinput';
import { AvoidSoftInput } from 'react-native-avoid-softinput';
```- Loading branch information
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android/src/main/java/com/reactnativeavoidsoftinput/AvoidSoftInputModule.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,222 @@ | ||
| package com.reactnativeavoidsoftinput | ||
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| import android.animation.Animator | ||
| import android.animation.AnimatorListenerAdapter | ||
| import android.animation.ValueAnimator | ||
| import android.view.View | ||
| import android.view.ViewTreeObserver | ||
| import android.view.WindowManager | ||
| import android.widget.ScrollView | ||
| import com.facebook.react.bridge.* | ||
| import com.facebook.react.modules.core.DeviceEventManagerModule | ||
| import com.facebook.react.uimanager.PixelUtil | ||
|
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| class AvoidSoftInputModule(private val reactContext: ReactApplicationContext) : ReactContextBaseJavaModule(reactContext), LifecycleEventListener, AvoidSoftInputProvider.SoftInputListener { | ||
| private var mIsInitialized = false | ||
| private var mIsEnabled = false | ||
| private var mAvoidSoftInputProvider: AvoidSoftInputProvider? = null | ||
| private var mCurrentFocusedView: View? = null | ||
| private var mPreviousFocusedView: View? = null | ||
| private var mScrollViewParent: ScrollView? = null | ||
| private var mIsRootViewSlideUp = false | ||
| private var mDefaultSoftInputMode: Int = reactContext.currentActivity?.window?.attributes?.softInputMode ?: WindowManager.LayoutParams.SOFT_INPUT_STATE_UNSPECIFIED | ||
| private var mCurrentBottomPadding: Int = 0 | ||
| private var mBottomOffset: Float = 0F | ||
| private var mAvoidOffset: Float = 0F | ||
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| private val mOnGlobalFocusChangeListener = ViewTreeObserver.OnGlobalFocusChangeListener { oldView, newView -> | ||
| mCurrentFocusedView = newView | ||
| mPreviousFocusedView = oldView | ||
| } | ||
|
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| override fun getName(): String = NAME | ||
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| override fun initialize() { | ||
| super.initialize() | ||
| reactContext.addLifecycleEventListener(this) | ||
| } | ||
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| private fun initializeHandlers() { | ||
| if (!mIsInitialized) { | ||
| mAvoidSoftInputProvider = AvoidSoftInputProvider(reactContext).initializeProvider() | ||
| mAvoidSoftInputProvider?.setSoftInputListener(this) | ||
| reactContext.currentActivity?.window?.decorView?.rootView?.viewTreeObserver?.addOnGlobalFocusChangeListener(mOnGlobalFocusChangeListener) | ||
| mIsInitialized = true | ||
| } | ||
| } | ||
|
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| private fun cleanupHandlers() { | ||
| if (mIsInitialized) { | ||
| mAvoidSoftInputProvider?.dismiss() | ||
| mAvoidSoftInputProvider?.setSoftInputListener(null) | ||
| mAvoidSoftInputProvider = null | ||
| reactContext.currentActivity?.window?.decorView?.rootView?.viewTreeObserver?.removeOnGlobalFocusChangeListener(mOnGlobalFocusChangeListener) | ||
| mIsInitialized = false | ||
| } | ||
| } | ||
|
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| @ReactMethod | ||
| fun setEnabled(isEnabled: Boolean) { | ||
| mIsEnabled = isEnabled | ||
| } | ||
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| @ReactMethod | ||
| fun setAvoidOffset(avoidOffset: Float) { | ||
| mAvoidOffset = PixelUtil.toPixelFromDIP(avoidOffset) | ||
| } | ||
|
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| @ReactMethod | ||
| fun setAdjustNothing() { | ||
| setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_NOTHING) | ||
| } | ||
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| @ReactMethod | ||
| fun setAdjustPan() { | ||
| setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN) | ||
| } | ||
|
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| @ReactMethod | ||
| fun setAdjustResize() { | ||
| setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE) | ||
| } | ||
|
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| @ReactMethod | ||
| fun setAdjustUnspecified() { | ||
| setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) | ||
| } | ||
|
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| @ReactMethod | ||
| fun setDefaultAppSoftInputMode() { | ||
| setSoftInputMode(mDefaultSoftInputMode) | ||
| } | ||
|
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| private fun setSoftInputMode(mode: Int) { | ||
| val activity = reactContext.currentActivity ?: return | ||
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| UiThreadUtil.runOnUiThread { | ||
| activity.window.setSoftInputMode(mode) | ||
| } | ||
| } | ||
|
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| override fun onSoftInputShown(from: Int, to: Int) { | ||
| sendEvent(SOFT_INPUT_SHOWN, Arguments.createMap().apply { | ||
| putInt(SOFT_INPUT_HEIGHT_KEY, to) | ||
| }) | ||
|
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| val activity = reactContext.currentActivity ?: return | ||
| val rootView = activity.window.decorView.rootView | ||
| val currentFocusedView = mCurrentFocusedView ?: mPreviousFocusedView | ||
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| if (!mIsEnabled || currentFocusedView == null || checkIfNestedInAvoidSoftInputView(currentFocusedView, rootView)) { | ||
| return | ||
| } | ||
|
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| val keyboardOffset = computeKeyboardOffset(to, currentFocusedView, rootView, rootView) ?: return | ||
| mScrollViewParent = getScrollViewParent(currentFocusedView, rootView) | ||
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| mBottomOffset = keyboardOffset + mAvoidOffset | ||
| val scrollViewParent = mScrollViewParent | ||
| mCurrentBottomPadding = scrollViewParent?.paddingBottom ?: 0 | ||
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| UiThreadUtil.runOnUiThread { | ||
| ValueAnimator.ofFloat(0F, mBottomOffset).apply { | ||
| duration = INCREASE_PADDING_DURATION_IN_MS | ||
| addListener(object: AnimatorListenerAdapter() { | ||
| override fun onAnimationEnd(animation: Animator?) { | ||
| super.onAnimationEnd(animation) | ||
| if (scrollViewParent != null) { | ||
| val positionInScrollView = getPositionYRelativeToScrollViewParent(currentFocusedView, rootView) | ||
| scrollViewParent.smoothScrollTo(0, positionInScrollView) | ||
| } | ||
| } | ||
| }) | ||
| addUpdateListener { | ||
| if (scrollViewParent != null) { | ||
| scrollViewParent.setPadding( | ||
| scrollViewParent.paddingLeft, | ||
| scrollViewParent.paddingTop, | ||
| scrollViewParent.paddingRight, | ||
| mCurrentBottomPadding + (it.animatedValue as Float).toInt() | ||
| ) | ||
| } else { | ||
| rootView.translationY = -(it.animatedValue as Float) | ||
| } | ||
| } | ||
| start() | ||
| } | ||
| } | ||
| mIsRootViewSlideUp = true | ||
| } | ||
|
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| override fun onSoftInputHidden(from: Int, to: Int) { | ||
| sendEvent(SOFT_INPUT_HIDDEN, Arguments.createMap().apply { | ||
| putInt(SOFT_INPUT_HEIGHT_KEY, 0) | ||
| }) | ||
|
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| val activity = reactContext.currentActivity ?: return | ||
| val rootView = activity.window.decorView.rootView | ||
| val currentFocusedView = mCurrentFocusedView ?: mPreviousFocusedView | ||
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| if (!mIsRootViewSlideUp || !mIsEnabled || currentFocusedView == null || checkIfNestedInAvoidSoftInputView(currentFocusedView, rootView)) { | ||
| return | ||
| } | ||
|
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| mIsRootViewSlideUp = false | ||
| val scrollViewParent = mScrollViewParent | ||
|
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| UiThreadUtil.runOnUiThread { | ||
| ValueAnimator.ofFloat(mBottomOffset, 0F).apply { | ||
| duration = DECREASE_PADDING_DURATION_IN_MS | ||
| addListener(object: AnimatorListenerAdapter() { | ||
| override fun onAnimationEnd(animation: Animator?) { | ||
| super.onAnimationEnd(animation) | ||
| if (scrollViewParent != null) { | ||
| val positionInScrollView = getPositionYRelativeToScrollViewParent(currentFocusedView, rootView) | ||
| scrollViewParent.smoothScrollTo(0, positionInScrollView) | ||
| } | ||
| mScrollViewParent = null | ||
| mCurrentBottomPadding = 0 | ||
| } | ||
| }) | ||
| addUpdateListener { | ||
| if (scrollViewParent != null) { | ||
| scrollViewParent.setPadding( | ||
| scrollViewParent.paddingLeft, | ||
| scrollViewParent.paddingTop, | ||
| scrollViewParent.paddingRight, | ||
| mCurrentBottomPadding + (it.animatedValue as Float).toInt() | ||
| ) | ||
| } else { | ||
| rootView.translationY = -(it.animatedValue as Float) | ||
| } | ||
| } | ||
| start() | ||
| } | ||
| } | ||
| } | ||
|
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| private fun sendEvent(eventName: String, params: WritableMap?) { | ||
| reactContext | ||
| .getJSModule(DeviceEventManagerModule.RCTDeviceEventEmitter::class.java) | ||
| .emit(eventName, params) | ||
| } | ||
|
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| companion object { | ||
| const val NAME = "AvoidSoftInput" | ||
| const val INCREASE_PADDING_DURATION_IN_MS: Long = 660 | ||
| const val DECREASE_PADDING_DURATION_IN_MS: Long = 220 | ||
| const val SOFT_INPUT_HEIGHT_KEY = "softInputHeight" | ||
| const val SOFT_INPUT_SHOWN = "softInputShown" | ||
| const val SOFT_INPUT_HIDDEN = "softInputHidden" | ||
| } | ||
|
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| override fun onHostResume() { | ||
| initializeHandlers() | ||
| } | ||
|
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| override fun onHostPause() {} | ||
|
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| override fun onHostDestroy() { | ||
| cleanupHandlers() | ||
| } | ||
| } |
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