Hi all i'm getting a NPE when setting an ImageView a bitmap. The bitmap has been decoded from a bytearray and is not null or empty. any ideas? thanks
public class LoadPic extends Activity{
private static final String TAG = "Loadpic";
private ImageView imageview;
private File tempFile;
private byte[] imageArray;
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
Log.e(TAG, " loadpic onCreate");
setContentView(R.layout.load);
imageview = (ImageView)findViewById(R.id.imageView1);
tempFile = new File(Environment.getExternalStorageDirectory().
getAbsolutePath() + "/"+"image.jpg");
imageArray = new byte[(int)tempFile.length()];
try{
InputStream is = new FileInputStream(tempFile);
BufferedInputStream bis = new BufferedInputStream(is);
DataInputStream dis = new DataInputStream(bis);
int i = 0;
while (dis.available() > 0) {
imageArray[i] = dis.readByte();
i++;
}
dis.close();
} catch (Exception e) {
e.printStackTrace();
}
BitmapFactory.Options bfo = new BitmapFactory.Options();
bfo.inSampleSize = 5;
Bitmap bm = BitmapFactory.decodeByteArray(imageArray, 0, imageArray.length, bfo);
Log.e(TAG, bm.toString());
imageview.setImageBitmap(bm);
}// end of onCreate
}//end of Activity
<?xml version="1.0" encoding="UTF-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="wrap_content" android:gravity="fill">
<ImageView android:id="@+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"></ImageView>
</RelativeLayout>
确保具有android:id="@+id/imageView1"
res/layout/load.xml
android:id="@+id/imageView1"
的ImageView
实际上出现在res/layout/load.xml
。
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