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150 changes: 150 additions & 0 deletions
150
library/src/main/java/com/goyourfly/multiple/adapter/viewholder/InterceptFrameLayout.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,150 @@ | ||
| package com.goyourfly.multiple.adapter.viewholder | ||
|
|
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| import android.content.Context | ||
| import android.support.v4.view.MotionEventCompat | ||
| import android.util.Log | ||
| import android.view.MotionEvent | ||
| import android.view.View | ||
| import android.widget.FrameLayout | ||
| import com.goyourfly.multiple.adapter.MultipleAdapter | ||
| import com.goyourfly.multiple.adapter.ViewState | ||
|
|
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| /** | ||
| * Created by gaoyufei on 2017/7/20. | ||
| */ | ||
|
|
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| class InterceptFrameLayout(context: Context, val adapter: MultipleAdapter, child: View) : FrameLayout(context) { | ||
| val CLICK_ACTION_THRESHHOLD = 20 | ||
| val CLICK_LONG_TIME = 500L | ||
|
|
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| var startX = 0F | ||
| var startY = 0F | ||
| var moveX = 0F | ||
| var moveY = 0F | ||
| var downTime = 0L | ||
| var isTouching = false | ||
| var isLongClick = false | ||
| var touchDownTime = 0L | ||
|
|
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| private var onLongClicked: (() -> Unit)? = null | ||
| private var onClick: (() -> Unit)? = null | ||
|
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| val run = Runnable { | ||
| if (isTouching && !isLongClick && isAClick()) { | ||
| // 制作一个假的事件 | ||
| val event = MotionEvent.obtain( | ||
| downTime, | ||
| System.currentTimeMillis(), | ||
| MotionEvent.ACTION_MOVE, | ||
| moveX, | ||
| moveY, | ||
| 0) | ||
| isLongClick = true | ||
| onTouchEvent(event) | ||
| } | ||
| } | ||
|
|
||
| init { | ||
| val childParams = child.layoutParams | ||
| val params = | ||
| if (childParams != null) | ||
| LayoutParams(childParams) | ||
| else | ||
| LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT) | ||
| layoutParams = params | ||
| addView(child) | ||
| } | ||
|
|
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| override fun onInterceptTouchEvent(ev: MotionEvent): Boolean { | ||
| Log.d("...", "onIntercept:$ev") | ||
| val action = MotionEventCompat.getActionMasked(ev) | ||
| when (action) { | ||
| MotionEvent.ACTION_DOWN -> { | ||
| isLongClick = false | ||
| isTouching = true | ||
| startX = ev.x | ||
| startY = ev.y | ||
| moveX = ev.x | ||
| moveY = ev.y | ||
| downTime = System.currentTimeMillis() | ||
| handler.postDelayed(run, CLICK_LONG_TIME) | ||
| } | ||
| MotionEvent.ACTION_MOVE -> { | ||
| moveX = ev.x | ||
| moveY = ev.y | ||
| if (isInterceptLong() && isAClick()) { | ||
| isLongClick = true | ||
| } | ||
| } | ||
| MotionEvent.ACTION_UP, MotionEvent.ACTION_CANCEL -> { | ||
| isTouching = false | ||
| handler.removeCallbacks(run) | ||
| } | ||
| } | ||
| return isLongClick || adapter.showState == ViewState.SELECT | ||
| } | ||
|
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|
|
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| override fun onTouchEvent(ev: MotionEvent): Boolean { | ||
| val action = MotionEventCompat.getActionMasked(ev) | ||
| Log.d("...", "onTouch:$ev") | ||
| if (isTouching | ||
| && isLongClick | ||
| && action != MotionEvent.ACTION_CANCEL) { | ||
| handler.removeCallbacks(run) | ||
| handler.post { | ||
| onLongClicked?.invoke() | ||
| } | ||
| return true | ||
| } | ||
| when (action) { | ||
| MotionEvent.ACTION_DOWN -> { | ||
| isTouching = true | ||
| startX = ev.x | ||
| startY = ev.y | ||
| moveX = ev.x | ||
| moveY = ev.y | ||
| touchDownTime = System.currentTimeMillis() | ||
| } | ||
| MotionEvent.ACTION_MOVE -> { | ||
| moveX = ev.x | ||
| moveY = ev.y | ||
| } | ||
| MotionEvent.ACTION_UP -> { | ||
| isTouching = false | ||
| handler.removeCallbacks(run) | ||
| if (adapter.showState == ViewState.SELECT | ||
| && !isTouchLong() | ||
| && isAClick()) { | ||
| onClick?.invoke() | ||
| } | ||
| } | ||
| MotionEvent.ACTION_CANCEL -> { | ||
| isTouching = false | ||
| handler.removeCallbacks(run) | ||
| } | ||
| } | ||
| return true | ||
| } | ||
|
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|
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| fun setLongClickCallback(callback: () -> Unit): Unit { | ||
| onLongClicked = callback | ||
| } | ||
|
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| fun setSelectStateClickCallback(callback: () -> Unit): Unit { | ||
| onClick = callback | ||
| } | ||
|
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| private fun isInterceptLong() = System.currentTimeMillis() - downTime > CLICK_LONG_TIME | ||
| private fun isTouchLong() = System.currentTimeMillis() - touchDownTime > CLICK_LONG_TIME | ||
|
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| private fun isAClick(): Boolean { | ||
| val differenceX = Math.abs(startX - moveX) | ||
| val differenceY = Math.abs(startY - moveY) | ||
| if (differenceX > CLICK_ACTION_THRESHHOLD/* =5 */ || differenceY > CLICK_ACTION_THRESHHOLD) { | ||
| return false | ||
| } | ||
| return true | ||
| } | ||
| } |
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