【Android】不同控件对不同数据类型的databinding以及运算(持续更新)

不同控件对不同数据类型的databinding,持续更新

TextView:

​​text: String:​​

<TextView
  ...
  android:text="@{item.name}" />

​​text: Int(kotlin)->String​​

android:text="@{String.valueOf(item.id)}"

android:text="@{item.id.toString()}"

​​textColor: Int​​

android:textColor="@{itemModel.setColor(context)}"

fun setColor(context: Context): Int? {
    val colorId = when (state) {
        MainConstants.TASK_STATE_ALARM -> {
            R.color.word_theme_red
        }
        MainConstants.TASK_STATE_PROCEED -> {
            R.color.word_theme_blue
        }
        MainConstants.TASK_STATE_FINISH -> {
            R.color.word_theme_green
        }
        else -> null
    }
    return colorId?.let { ContextCompat.getColor(context, it) }
}

ImageView:

​​src: Drawable​​

android:src="@{itemModel.setHeadPhoto(context)}"

fun setHeadPhoto(context: Context): Drawable? {
  return HeadPhoto.getListHeadPhoto(prisonerSex, state)?.let {
      ContextCompat.getDrawable(context,it)//重点
  }
}

​​app:imageUrl​​​​Image(这里必需自己写BindingAdapter)​​

app:imageUrl="@{item.images}"

//Databinding加载图片
@BindingAdapter("imageUrl")
@JvmStatic
fun loadImage(view: ImageView?, url: String?) {
  if (!TextUtils.isEmpty(url)) {
    Glide.with(view?.context!!).load(url).dontAnimate().placeholder(R.mipmap.settings_person).into(view)
  }
}