修复android TextView bug FontWeight不生效以及代码设置
不生效原因具体原因看这里：https://blog.csdn.net/qq_21793463/article/details/142444607
总结：androidx bug 导致的即便xml 写TextView 也会被替换AppCompatTextView。这里主要就是AppCompatTextView 有问题
1.要么自定义view继承写TextView ，最简单但是不支持动态设置权重，但是也会提示让继承AppCompatTextView，处理不好还是有问题
2.直接继承AppCompatTextView
点击查看代码
import android.content.Context
import android.os.Build
import android.util.AttributeSet
import androidx.annotation.IntRange
import androidx.appcompat.R
import androidx.core.graphics.TypefaceCompat
class FontWeightTextView(context: Context, attrs: AttributeSet?) :
androidx.appcompat.widget.AppCompatTextView(context, attrs) {
var textFontWeight: Int = 400 // 默认值
set(@IntRange(from = 1, to = 1000) value) {
field = when {
value < 1 -> 1
value > 1000 -> 1000
else -> value
}
TypefaceCompat.create(context, typeface, field, typeface.isItalic).let {
typeface = it
}
}
get() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
return typeface.weight
}
return field
}
init {
attrs?.let {
val a = context.obtainStyledAttributes(attrs, R.styleable.TextAppearance)
textFontWeight = a.getInt(R.styleable.TextAppearance_android_textFontWeight, textFontWeight)
a.recycle()
}
}
override fun setTextAppearance(context: Context, resId: Int) {
super.setTextAppearance(context, resId)
val a = context.obtainStyledAttributes(resId, R.styleable.TextAppearance)
textFontWeight = a.getInt(R.styleable.TextAppearance_android_textFontWeight, textFontWeight)
a.recycle()
}
}