feat: 优化代码

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

@@ -1,67 +1,54 @@
 package io.legado.app.ui.widget
 
+import android.annotation.SuppressLint
 import android.content.Context
 import android.graphics.Canvas
 import android.graphics.Paint
 import android.graphics.Rect
-import android.graphics.Typeface
-import android.text.StaticLayout
-import android.text.TextPaint
 import android.util.AttributeSet
-import android.view.View
 import androidx.annotation.ColorInt
+import androidx.appcompat.widget.AppCompatTextView
 import io.legado.app.R
 import io.legado.app.utils.dp
 import io.legado.app.utils.getCompatColor
-import io.legado.app.utils.sp
 
-class BatteryView(context: Context, attrs: AttributeSet?) : View(context, attrs) {
+class BatteryView(context: Context, attrs: AttributeSet?) : AppCompatTextView(context, attrs) {
-    private var battery = 100
+    private val batteryPaint = Paint()
-    private val textPaint = TextPaint()
-    private var batteryHeight: Int = 0
-    private var batteryWidth: Int = 0
     private val outFrame = Rect()
     private val polar = Rect()
 
     init {
-        textPaint.textSize = 10.sp.toFloat()
+        setPadding(4.dp, 0, 6.dp, 0)
-        textPaint.strokeWidth = 1.dp.toFloat()
+        batteryPaint.strokeWidth = 1.dp.toFloat()
-        textPaint.isAntiAlias = true
+        batteryPaint.isAntiAlias = true
-        textPaint.textAlign = Paint.Align.CENTER
+        batteryPaint.color = context.getCompatColor(R.color.tv_text_default)
-        textPaint.color = context.getCompatColor(R.color.tv_text_default)
-        textPaint.typeface = Typeface.createFromAsset(context.assets, "number.ttf")
-        batteryHeight = with(textPaint.fontMetrics) { descent - ascent + leading }.toInt()
-        batteryWidth = StaticLayout.getDesiredWidth("100", textPaint).toInt() + 10.dp
-        outFrame.set(1.dp, 1.dp, batteryWidth - 3.dp, batteryHeight - 1.dp)
-        polar.set(outFrame.right, batteryHeight / 3, batteryWidth, batteryHeight * 2 / 3)
-    }
-
-    override fun onMeasure(widthMeasureSpec: Int, heightMeasureSpec: Int) {
-        super.onMeasure(
-            MeasureSpec.makeMeasureSpec(batteryWidth, MeasureSpec.EXACTLY),
-            MeasureSpec.makeMeasureSpec(batteryHeight, MeasureSpec.EXACTLY)
-        )
     }
 
     fun setColor(@ColorInt color: Int) {
-        textPaint.color = color
+        setTextColor(color)
+        batteryPaint.color = color
         invalidate()
     }
 
+    @SuppressLint("SetTextI18n")
     fun setBattery(battery: Int) {
-        this.battery = battery
+        text = "$battery"
-        invalidate()
     }
 
     override fun onDraw(canvas: Canvas) {
         super.onDraw(canvas)
-        textPaint.style = Paint.Style.STROKE
+        outFrame.set(
-        canvas.drawRect(outFrame, textPaint)
+            1.dp,
-        textPaint.style = Paint.Style.FILL
+            layout.getLineTop(0) + 2.dp,
-        canvas.drawRect(polar, textPaint)
+            width - 3.dp,
-        val text = battery.toString()
+            layout.getLineBottom(0) - 2.dp
-        val baseHeight = batteryHeight - textPaint.fontMetrics.descent
+        )
-        canvas.drawText(text, outFrame.right / 2.toFloat(), baseHeight, textPaint)
+        val dj = (outFrame.bottom - outFrame.top) / 3
+        polar.set(outFrame.right, outFrame.top + dj, width - 1.dp, outFrame.bottom - dj)
+        batteryPaint.style = Paint.Style.STROKE
+        canvas.drawRect(outFrame, batteryPaint)
+        batteryPaint.style = Paint.Style.FILL
+        canvas.drawRect(polar, batteryPaint)
     }
 
 }

app/src/main/res/layout/view_book_page.xml

@@ -78,7 +78,8 @@
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_marginLeft="3dp"
-            tools:ignore="RtlHardcoded,RtlSymmetry" />
+            android:textSize="10sp"
+            tools:ignore="RtlHardcoded,RtlSymmetry,SmallSp" />
 
     </LinearLayout>