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我将相机图像保存在前缀路径上,例如:

String path = Environment.getExternalStorageDirectory().getPath()+/*myFolder&myFileName*/;

哪个正确保存在

/storage/emulated/0/myapp/target060613_112341.jpg

然后我想使用以下代码将此图像放入 ImageView 中:

public void addImageToGallery(String path) {
    ImageView imv = new ImageView(mGUIView.getContext());
    Bitmap bitmap = BitmapFactory.decodeFile(path);
    imv.setImageBitmap(bitmap);
    imv.setAdjustViewBounds(true);
    imv.setMaxHeight(100);
    RelativeLayout rl = (RelativeLayout) findViewById(R.id.RelativeImageGallery);
    RelativeLayout.LayoutParams lp = new RelativeLayout.LayoutParams(
        RelativeLayout.LayoutParams.WRAP_CONTENT,
        RelativeLayout.LayoutParams.WRAP_CONTENT);
    lp.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM);
    lp.addRule(RelativeLayout.ALIGN_PARENT_LEFT);
    lp.addRule(RelativeLayout.ALIGN_LEFT);
    rl.addView(imv, lp);
}

但是在调用 BitmapFactory.decodeFile(path) 时会出现问题...该函数返回错误说没有这样的文件或目录(ENOENT)

我的清单中也有 w/r 权限:

uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"
uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"

如果我尝试在内部路径 ( getFilesDir().getAbsolutePath())上存储和检索 jpg 文件,则会出现同样的错误

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1 回答 1

1

问题解决了在清单文件中添加:

uses-permission android:name="android.permission.WRITE_INTERNAL_STORAGE"
uses-permission android:name="android.permission.READ_INTERNAL_STORAGE"
于 2013-06-07T08:07:20.383 回答