System.err: java.io.FileNotFoundException: /storage/emulated/0/***(No such file or directory)

如果你确定你的file 或 directory没错的话,那可能错在没有获取动态权限上,检查方法如下:

System.err: java.io.FileNotFoundException: /storage/emulated/0/***(No such file or directory)_第1张图片

可以看到它写明是权限拒绝。解决方法如下:

  private void checkNeedPermissions(){
    //6.0以上需要动态申请权限
    if (ContextCompat.checkSelfPermission(this, Manifest.permission.CAMERA)
            != PackageManager.PERMISSION_GRANTED
            || ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE)
            != PackageManager.PERMISSION_GRANTED
            || ContextCompat.checkSelfPermission(this, Manifest.permission.READ_EXTERNAL_STORAGE)
            != PackageManager.PERMISSION_GRANTED) {
      //多个权限一起申请
      ActivityCompat.requestPermissions(this, new String[]{
              Manifest.permission.CAMERA,
              Manifest.permission.WRITE_EXTERNAL_STORAGE,
              Manifest.permission.READ_EXTERNAL_STORAGE
      }, 1);
    }
  }

然后在oncreate里调用checkNeedPermissions();

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