up

app/src/main/java/io/legado/app/ui/widget/page/ChapterProvider.kt

@@ -0,0 +1,19 @@
+package io.legado.app.ui.widget.page
+
+import android.widget.TextView
+
+
+class ChapterProvider {
+
+
+    fun getTextChapter(textView: TextView, content: String) {
+
+        textView.text = content
+        val layout = textView.layout
+        val topOfLastLine = textView.height - textView.paddingTop - textView.paddingBottom - textView.lineHeight
+        val lineNum = layout.getLineForVertical(topOfLastLine)
+        val lastCharNum = layout.getLineEnd(lineNum)
+    }
+
+
+}

app/src/main/java/io/legado/app/ui/widget/page/ContentTextView.kt

@@ -0,0 +1,41 @@
+package io.legado.app.ui.widget.page
+
+import android.content.Context
+import android.util.AttributeSet
+import androidx.appcompat.widget.AppCompatTextView
+
+
+class ContentTextView : AppCompatTextView {
+    constructor(context: Context) : super(context)
+
+    constructor(context: Context, attrs: AttributeSet) : super(context, attrs)
+
+    constructor(context: Context, attrs: AttributeSet, defStyleAttr: Int) : super(context, attrs, defStyleAttr)
+
+    /**
+     * 去除当前页无法显示的字
+     * @return 去掉的字数
+     */
+    fun resize(): Int {
+        val oldContent = text
+        val newContent = oldContent.subSequence(0, getCharNum())
+        text = newContent
+        return oldContent.length - newContent.length
+    }
+
+    /**
+     * 获取当前页总字数
+     */
+    fun getCharNum(): Int {
+        return layout.getLineEnd(getLineNum())
+    }
+
+    /**
+     * 获取当前页总行数
+     */
+    fun getLineNum(): Int {
+        val layout = layout
+        val topOfLastLine = height - paddingTop - paddingBottom - lineHeight
+        return layout.getLineForVertical(topOfLastLine)
+    }
+}