feat: 优化代码

app/src/main/java/io/legado/app/ui/book/read/page/ContentView.kt

@@ -68,6 +68,7 @@ class ContentView(context: Context) : FrameLayout(context) {
                 tv_top_right.setTextColor(it)
                 tv_bottom_left.setTextColor(it)
                 tv_bottom_right.setTextColor(it)
+                battery_view.setColor(it)
             }
             if (hideStatusBar) {
                 tv_bottom_left.text = timeFormat.format(Date(System.currentTimeMillis()))

app/src/main/java/io/legado/app/ui/widget/BatteryView.kt

@@ -9,6 +9,7 @@ import android.text.StaticLayout
 import android.text.TextPaint
 import android.util.AttributeSet
 import android.view.View
+import androidx.annotation.ColorInt
 import io.legado.app.R
 import io.legado.app.utils.dp
 import io.legado.app.utils.getCompatColor
@@ -23,7 +24,7 @@ class BatteryView(context: Context, attrs: AttributeSet?) : View(context, attrs)
     private val polar = Rect()
 
     init {
-        textPaint.textSize = 12.sp.toFloat()
+        textPaint.textSize = 10.sp.toFloat()
         textPaint.strokeWidth = 1.dp.toFloat()
         textPaint.isAntiAlias = true
         textPaint.textAlign = Paint.Align.CENTER
@@ -42,6 +43,11 @@ class BatteryView(context: Context, attrs: AttributeSet?) : View(context, attrs)
         )
     }
 
+    fun setColor(@ColorInt color: Int) {
+        textPaint.color = color
+        invalidate()
+    }
+
     fun setBattery(battery: Int) {
         this.battery = battery
         invalidate()