Anko ConstraintLayout

_ConstraintLayout.kt

import android.app.Activity
import android.content.Context
import android.support.constraint.ConstraintLayout
import android.util.AttributeSet
import android.view.View
import android.view.ViewGroup
import android.view.ViewManager
import org.jetbrains.anko.AnkoViewDslMarker
import org.jetbrains.anko.custom.ankoView


open class _ConstraintLayout(ctx: Context) : ConstraintLayout(ctx) {

    inline fun <T : View> T.lparams(
            c: Context?,
            attrs: AttributeSet?,
            init: ConstraintLayout.LayoutParams.() -> Unit
    ): T {
        val layoutParams = ConstraintLayout.LayoutParams(c!!, attrs!!)
        layoutParams.init()
        layoutParams.validate()
        this@lparams.layoutParams = layoutParams
        return this
    }

    inline fun <T : View> T.lparams(
            c: Context?,
            attrs: AttributeSet?
    ): T {
        val layoutParams = ConstraintLayout.LayoutParams(c!!, attrs!!)
        layoutParams.validate()
        this@lparams.layoutParams = layoutParams
        return this
    }

    inline fun <T : View> T.lparams(
            width: Int = android.view.ViewGroup.LayoutParams.WRAP_CONTENT,
            height: Int = android.view.ViewGroup.LayoutParams.WRAP_CONTENT,
            init: ConstraintLayout.LayoutParams.() -> Unit
    ): T {
        val layoutParams = ConstraintLayout.LayoutParams(width, height)
        layoutParams.init()
        layoutParams.validate()
        this@lparams.layoutParams = layoutParams
        return this
    }

    inline fun <T : View> T.lparams(
            width: Int = android.view.ViewGroup.LayoutParams.WRAP_CONTENT,
            height: Int = android.view.ViewGroup.LayoutParams.WRAP_CONTENT
    ): T {
        val layoutParams = ConstraintLayout.LayoutParams(width, height)
        layoutParams.validate()
        this@lparams.layoutParams = layoutParams
        return this
    }

    inline fun <T : View> T.lparams(
            source: ViewGroup.LayoutParams?,
            init: ConstraintLayout.LayoutParams.() -> Unit
    ): T {
        val layoutParams = ConstraintLayout.LayoutParams(source!!)
        layoutParams.init()
        layoutParams.validate()
        this@lparams.layoutParams = layoutParams
        return this
    }

    inline fun <T : View> T.lparams(
            source: ViewGroup.LayoutParams?
    ): T {
        val layoutParams = ConstraintLayout.LayoutParams(source!!)
        this@lparams.layoutParams = layoutParams
        return this
    }

    inline fun <T : View> T.lparams(
            source: ViewGroup.MarginLayoutParams?,
            init: ConstraintLayout.LayoutParams.() -> Unit
    ): T {
        val layoutParams = ConstraintLayout.LayoutParams(source!!)
        layoutParams.init()
        layoutParams.validate()
        this@lparams.layoutParams = layoutParams
        return this
    }

    inline fun <T : View> T.lparams(
            source: ViewGroup.MarginLayoutParams?
    ): T {
        val layoutParams = ConstraintLayout.LayoutParams(source!!)
        layoutParams.validate()
        this@lparams.layoutParams = layoutParams
        return this
    }

    inline fun <T : View> T.lparams(
            source: ConstraintLayout.LayoutParams?,
            init: ConstraintLayout.LayoutParams.() -> Unit
    ): T {
        val layoutParams = ConstraintLayout.LayoutParams(source!!)
        layoutParams.init()
        layoutParams.validate()
        this@lparams.layoutParams = layoutParams
        return this
    }

    inline fun <T : View> T.lparams(
            source: ConstraintLayout.LayoutParams?
    ): T {
        val layoutParams = ConstraintLayout.LayoutParams(source!!)
        layoutParams.validate()
        this@lparams.layoutParams = layoutParams
        return this
    }
}

inline fun ViewManager.constraintLayout(): _ConstraintLayout = constraintLayout {}
inline fun ViewManager.constraintLayout(init: (@AnkoViewDslMarker _ConstraintLayout).() -> Unit): _ConstraintLayout {
    return ankoView(::_ConstraintLayout, theme = 0) { init() }
}

inline fun ViewManager.themedConstraintLayout(theme: Int = 0): _ConstraintLayout = themedConstraintLayout(theme) {}
inline fun ViewManager.themedConstraintLayout(theme: Int = 0, init: (@AnkoViewDslMarker _ConstraintLayout).() -> Unit): _ConstraintLayout {
    return ankoView(::_ConstraintLayout, theme) { init() }
}

inline fun Context.constraintLayout(): _ConstraintLayout = constraintLayout {}
inline fun Context.constraintLayout(init: (@AnkoViewDslMarker _ConstraintLayout).() -> Unit): _ConstraintLayout {
    return ankoView(::_ConstraintLayout, theme = 0) { init() }
}

inline fun Context.themedConstraintLayout(theme: Int = 0): _ConstraintLayout = themedConstraintLayout(theme) {}
inline fun Context.themedConstraintLayout(theme: Int = 0, init: (@AnkoViewDslMarker _ConstraintLayout).() -> Unit): _ConstraintLayout {
    return ankoView(::_ConstraintLayout, theme) { init() }
}

inline fun Activity.constraintLayout(): _ConstraintLayout = constraintLayout {}
inline fun Activity.constraintLayout(init: (@AnkoViewDslMarker _ConstraintLayout).() -> Unit): _ConstraintLayout {
    return ankoView(::_ConstraintLayout, theme = 0) { init() }
}

val parentId: Int = ConstraintLayout.LayoutParams.PARENT_ID
val matchConstraint: Int = ConstraintLayout.LayoutParams.MATCH_CONSTRAINT
val matchConstraintWrap: Int = ConstraintLayout.LayoutParams.MATCH_CONSTRAINT_WRAP
val matchConstraintSpread: Int = ConstraintLayout.LayoutParams.MATCH_CONSTRAINT_SPREAD