如有问题请指出 package com.summer.caidao.toast import android.annotation.SuppressLint import android.content.Context import android.os.Handler import android.os.Looper import android.support.annotation.ColorInt import android.support.annotation.DrawableRes import android.support.annotation.LayoutRes import android.support.annotation.StringRes import android.text.SpannableString import android.text.Spanned import android.text.style.ForegroundColorSpan import android.view.LayoutInflater import android.view.View import android.widget.Toast import java.lang.ref.WeakReference /** * Created by * User -> Summer * Date -> 2018/5/16 * * Description: Toast工具类 * */ const val DEFAULT_COLOR = 0x12000000 class CaidaoToast private constructor(context: Context) { private var mContext: Context = context private var backgroundColor = DEFAULT_COLOR private var messageColor = DEFAULT_COLOR private var mToast: Toast? = null private var bgResource = -1 private var sViewWeakReference: WeakReference ? = null private var sHandler = Handler(Looper.getMainLooper()) private var gravity = -1 private var xOffset = -1 private var yOffset = -1 /** * 建造者模式,设置Toast的各种属性 */ class Builder(context: Context) { private var caidaoToast = CaidaoToast(context) /** * 设置位置 */ fun setGravity(gravity: Int, xOffset: Int, yOffset: Int): Builder { caidaoToast.gravity = gravity caidaoToast.xOffset = xOffset caidaoToast.yOffset = yOffset return this } /** * 设置View */ fun setView(@LayoutRes layoutId: Int): Builder { val inflate = caidaoToast.mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE) as LayoutInflater caidaoToast.sViewWeakReference = WeakReference(inflate.inflate(layoutId, null)) return this } /** * 设置View */ fun setView(view: View): Builder { caidaoToast.sViewWeakReference = WeakReference(view) return this } /** * 设置背景颜色 */ fun setBackgroundColor(@ColorInt backgroundColor: Int): Builder { caidaoToast.backgroundColor = backgroundColor return this } /** * 设置背景资源 */ fun setBgResource(@DrawableRes bgResource: Int): Builder { caidaoToast.bgResource = bgResource return this } /** * 设置消息字体颜色 */ fun setMessageColor(@ColorInt messageColor: Int): Builder { caidaoToast.messageColor = messageColor return this } /** * 建造者 */ fun build(): CaidaoToast { return caidaoToast } } /** * 安全地显示短时吐司 * * @param text 文本 */ fun showShortSafe(text: CharSequence) { sHandler.post { show(text, Toast.LENGTH_SHORT) } } /** * 安全地显示短时吐司 * * @param resId 资源Id */ fun showShortSafe(@StringRes resId: Int) { sHandler.post { show(resId, Toast.LENGTH_SHORT) } } /** * 安全地显示短时吐司 * * @param resId 资源Id * @param args 参数 */ fun showShortSafe(@StringRes resId: Int, vararg args: Any) { sHandler.post { show(resId, Toast.LENGTH_SHORT, args) } } /** * 安全地显示短时吐司 * * @param format 格式 * @param args 参数 */ fun showShortSafe(format: String, vararg args: Any) { sHandler.post { show(format, Toast.LENGTH_SHORT, args) } } /** * 安全地显示长时吐司 * * @param text 文本 */ fun showLongSafe(text: CharSequence) { sHandler.post { show(text, Toast.LENGTH_LONG) } } /** * 安全地显示长时吐司 * * @param resId 资源Id */ fun showLongSafe(@StringRes resId: Int) { sHandler.post { show(resId, Toast.LENGTH_LONG) } } /** * 安全地显示长时吐司 * * @param resId 资源Id * @param args 参数 */ fun showLongSafe(@StringRes resId: Int, vararg args: Any) { sHandler.post { show(resId, Toast.LENGTH_LONG, args) } } /** * 安全地显示长时吐司 * * @param format 格式 * @param args 参数 */ fun showLongSafe(format: String, vararg args: Any) { sHandler.post { show(format, Toast.LENGTH_LONG, args) } } /** * 显示短时吐司 * * @param text 文本 */ fun showShort(text: CharSequence) { show(text, Toast.LENGTH_SHORT) } /** * 显示短时吐司 * * @param resId 资源Id */ fun showShort(@StringRes resId: Int) { show(resId, Toast.LENGTH_SHORT) } /** * 显示短时吐司 * * @param resId 资源Id * @param args 参数 */ fun showShort(@StringRes resId: Int, vararg args: Any) { show(resId, Toast.LENGTH_SHORT, args) } /** * 显示短时吐司 * * @param format 格式 * @param args 参数 */ fun showShort(format: String, vararg args: Any) { show(format, Toast.LENGTH_SHORT, args) } /** * 显示长时吐司 * * @param text 文本 */ fun showLong(text: CharSequence) { show(text, Toast.LENGTH_LONG) } /** * 显示长时吐司 * * @param resId 资源Id */ fun showLong(@StringRes resId: Int) { show(resId, Toast.LENGTH_LONG) } /** * 显示长时吐司 * * @param resId 资源Id * @param args 参数 */ fun showLong(@StringRes resId: Int, vararg args: Any) { show(resId, Toast.LENGTH_LONG, args) } /** * 显示长时吐司 * * @param format 格式 * @param args 参数 */ fun showLong(format: String, vararg args: Any) { show(format, Toast.LENGTH_LONG, args) } /** * 显示吐司 * * @param resId 资源Id * @param duration 显示时长 */ private fun show(@StringRes resId: Int, duration: Int) { show(mContext.getString(resId), duration) } /** * 显示吐司 * * @param resId 资源Id * @param duration 显示时长 * @param args 参数 */ private fun show(@StringRes resId: Int, duration: Int, vararg args: Any) { show(String.format(mContext.getString(resId), args), duration) } /** * 显示吐司 * * @param format 格式 * @param duration 显示时长 * @param args 参数 */ private fun show(format: String, duration: Int, vararg args: Any) { show(String.format(format, *args), duration) } /** * 显示吐司 * * @param text 文本 * @param duration 显示时长 */ @SuppressLint("ShowToast") private fun show(text: CharSequence, duration: Int) { cancel() if (text.isBlank()) return var isCustom = false val customView = sViewWeakReference?.get() if (null != customView) { mToast = Toast(mContext) mToast?.view = customView mToast?.duration = duration isCustom = true } if (!isCustom) { mToast = if (messageColor != DEFAULT_COLOR) { val spannableString = SpannableString(text) val colorSpan = ForegroundColorSpan(messageColor) spannableString.setSpan(colorSpan, 0, spannableString.length, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE) Toast.makeText(mContext, spannableString, duration) } else { Toast.makeText(mContext, text, duration) } } val toastView = mToast?.view if (bgResource != -1) { toastView?.setBackgroundResource(bgResource) } else if (backgroundColor != DEFAULT_COLOR) { toastView?.setBackgroundColor(backgroundColor) } if (-1 != gravity && -1 != xOffset && -1 != yOffset) { mToast?.setGravity(gravity, xOffset, yOffset) } mToast?.show() } /** * 取消吐司显示 */ private fun cancel() { mToast?.cancel() mToast = null } }
