文件路径存在总是返回 false Android Above Q

Question

有人解决了我的代码

private fun isFileExists(): Boolean {
    var checked = false
    try {
        val filePath= this.applicationInfo.dataDir + PATH_SUFFIX + FILE_NAME
        val file = File(filePath)
        if (file.exists()) {
            checked = true
        }
    } catch (ignored: Exception) {
    }
    return checked
}

Bellow android Q 如果存在则返回true，但在Q之上它总是返回false

Answer 1

请尝试以下代码。

<manifest ... >
<!-- This attribute is "false" by default on apps targeting
     Android 10 or higher. -->
  <application android:requestLegacyExternalStorage="true" ... >
    ...
  </application>
</manifest>


private fun isFileExists(): Boolean {
        var checked = false
        try {
            val privateTempDir = Environment.getExternalStorageDirectory()

            val filePath= privateTempDir.absolutePath + PATH_SUFFIX + FILE_NAME
            val file = File(filePath)
            if (file.exists()) {
                checked = true
            }
        } catch (ignored: Exception) {
            ignored.printStackTrace()
        }
        return checked
    }

希望对你有用！！