回退BitmapFactory.decodeStream

pull/957/head
ag2s20150909 4 years ago
parent 39debe1acc
commit 4f5c969ed7
  1. 14
      app/src/main/java/io/legado/app/utils/BitmapUtils.kt

@ -29,10 +29,10 @@ object BitmapUtils {
fun decodeBitmap(path: String, width: Int, height: Int): Bitmap? { fun decodeBitmap(path: String, width: Int, height: Int): Bitmap? {
val op = BitmapFactory.Options() val op = BitmapFactory.Options()
op.inPreferredConfig = Config.RGB_565 op.inPreferredConfig = Config.RGB_565
val ips = FileInputStream(path) var ips = FileInputStream(path)
// inJustDecodeBounds如果设置为true,仅仅返回图片实际的宽和高,宽和高是赋值给opts.outWidth,opts.outHeight; // inJustDecodeBounds如果设置为true,仅仅返回图片实际的宽和高,宽和高是赋值给opts.outWidth,opts.outHeight;
op.inJustDecodeBounds = true op.inJustDecodeBounds = true
BitmapFactory.decodeFileDescriptor(ips.fd, null, op) BitmapFactory.decodeStream(ips, null, op)
//获取比例大小 //获取比例大小
val wRatio = ceil((op.outWidth / width).toDouble()).toInt() val wRatio = ceil((op.outWidth / width).toDouble()).toInt()
val hRatio = ceil((op.outHeight / height).toDouble()).toInt() val hRatio = ceil((op.outHeight / height).toDouble()).toInt()
@ -45,7 +45,8 @@ object BitmapUtils {
} }
} }
op.inJustDecodeBounds = false op.inJustDecodeBounds = false
return BitmapFactory.decodeFileDescriptor(ips.fd, null, op) ips = FileInputStream(path)
return BitmapFactory.decodeStream(ips, null, op)
} }
/** 从path中获取Bitmap图片 /** 从path中获取Bitmap图片
@ -56,13 +57,14 @@ object BitmapUtils {
val opts = BitmapFactory.Options() val opts = BitmapFactory.Options()
opts.inPreferredConfig = Config.RGB_565 opts.inPreferredConfig = Config.RGB_565
val ips = FileInputStream(path) var ips = FileInputStream(path)
opts.inJustDecodeBounds = true opts.inJustDecodeBounds = true
BitmapFactory.decodeFileDescriptor(ips.fd, null, opts) BitmapFactory.decodeStream(ips, null, opts)
opts.inSampleSize = computeSampleSize(opts, -1, 128 * 128) opts.inSampleSize = computeSampleSize(opts, -1, 128 * 128)
opts.inJustDecodeBounds = false opts.inJustDecodeBounds = false
ips = FileInputStream(path)
return BitmapFactory.decodeFileDescriptor(ips.fd, null, opts) return BitmapFactory.decodeStream(ips, null, opts)
} }
/** /**

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