如何从R.drawable.image jpg获得Exif？

Question

我创建了android项目 我带着geo hava image.jpg android.project中的image.jpg本地资源：

R.drawable.image

我有这段代码：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
    <TextView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="@string/hello_world"
        />
    <ScrollView
        android:orientation="vertical"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        >
        <LinearLayout
            android:orientation="vertical"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            >
            <TextView
                android:id="@+id/exif"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                />
            <ImageView
                android:id="@+id/image"
                android:layout_width="300dp"
                android:layout_height="300dp"
                />
        </LinearLayout>
    </ScrollView>
</LinearLayout>

的活动：

public class MainActivity extends ActionBarActivity {

    String imagefile =Uri.parse("android.resource://com.example.anton.gpsgeotag/drawable/image").toString();
    ImageView image;
    TextView Exif;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        image = (ImageView)findViewById(R.id.image);
        Exif = (TextView)findViewById(R.id.exif);
        ImageView image = (ImageView)findViewById(R.id.image);

        image.setImageDrawable(getResources().getDrawable(R.drawable.image));
        Uri path=Uri.parse("android.resource://com.example.anton.gpsgeotag/ + R.drawable.image");
        Exif.setText(ReadExif(imagefile));
    }

    String ReadExif(String file){
        String exif="Exif: " + file;
        try {
            ExifInterface exifInterface = new ExifInterface(file);

            exif += "\nIMAGE_LENGTH: " + exifInterface.getAttribute(ExifInterface.TAG_IMAGE_LENGTH);
            exif += "\nIMAGE_WIDTH: " + exifInterface.getAttribute(ExifInterface.TAG_IMAGE_WIDTH);
            exif += "\n DATETIME: " + exifInterface.getAttribute(ExifInterface.TAG_DATETIME);
            exif += "\n TAG_MAKE: " + exifInterface.getAttribute(ExifInterface.TAG_MAKE);
            exif += "\n TAG_MODEL: " + exifInterface.getAttribute(ExifInterface.TAG_MODEL);
            exif += "\n TAG_ORIENTATION: " + exifInterface.getAttribute(ExifInterface.TAG_ORIENTATION);
            exif += "\n TAG_WHITE_BALANCE: " + exifInterface.getAttribute(ExifInterface.TAG_WHITE_BALANCE);
            exif += "\n TAG_FOCAL_LENGTH: " + exifInterface.getAttribute(ExifInterface.TAG_FOCAL_LENGTH);
            exif += "\n TAG_FLASH: " + exifInterface.getAttribute(ExifInterface.TAG_FLASH);
            exif += "\nGPS related:";
            exif += "\n TAG_GPS_DATESTAMP: " + exifInterface.getAttribute(ExifInterface.TAG_GPS_DATESTAMP);
            exif += "\n TAG_GPS_TIMESTAMP: " + exifInterface.getAttribute(ExifInterface.TAG_GPS_TIMESTAMP);
            exif += "\n TAG_GPS_LATITUDE: " + exifInterface.getAttribute(ExifInterface.TAG_GPS_LATITUDE);
            exif += "\n TAG_GPS_LATITUDE_REF: " + exifInterface.getAttribute(ExifInterface.TAG_GPS_LATITUDE_REF);
            exif += "\n TAG_GPS_LONGITUDE: " + exifInterface.getAttribute(ExifInterface.TAG_GPS_LONGITUDE);
            exif += "\n TAG_GPS_LONGITUDE_REF: " + exifInterface.getAttribute(ExifInterface.TAG_GPS_LONGITUDE_REF);
            exif += "\n TAG_GPS_PROCESSING_METHOD: " + exifInterface.getAttribute(ExifInterface.TAG_GPS_PROCESSING_METHOD);

            Toast.makeText(this,
                    "finished",
                    Toast.LENGTH_LONG).show();

        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
            Toast.makeText(this,
                    e.toString(),
                    Toast.LENGTH_LONG).show();
        }

        return exif;
    }
}

为什么它不起作用，我不知道

res / drawable /

中的Image.jpg

哪里出错？