import java.io.ByteArrayOutputStream;    import java.io.FileNotFoundException;    import java.io.InputStream;        import android.app.Activity;    import android.content.ContentResolver;    import android.content.Intent;    import android.database.Cursor;    import android.graphics.Bitmap;    import android.graphics.BitmapFactory;    import android.graphics.drawable.BitmapDrawable;    import android.net.Uri;    import android.os.Bundle;    import android.provider.MediaStore;    import android.util.Base64;    import android.util.Log;    import android.view.View;    import android.view.View.OnClickListener;    import android.widget.ImageView;    import android.widget.LinearLayout;    import android.widget.Toast;        public class MainActivity extends Activity {        private ImageView iv;        private OnClickListener imgViewListener;        private Bitmap myBitmap;        private int REQUEST_OK = 1;        private LinearLayout ly_list;        @Override        protected void onCreate(Bundle savedInstanceState) {            super.onCreate(savedInstanceState);            setContentView(R.layout.activity_main);            iv = (ImageView) findViewById(R.id.iv);            ly_list=(LinearLayout) findViewById(R.id.ly_list);            iv.setOnClickListener(new OnClickListener() {                    @Override                public void onClick(View arg0) {                    // TODO Auto-generated method stub                    Intent intent = new Intent();                      //intent = new Intent(Intent.ACTION_GET_CONTENT);                    /* 开启Pictures画面Type设定为image */                      intent.setType("image/*");                      /* 使用Intent.ACTION_GET_CONTENT这个Action */                      intent.setAction(Intent.ACTION_GET_CONTENT);                       /* 取得相片后返回本画面 */                      startActivityForResult(intent, 1);                      }            });        }            @Override        protected void onActivityResult(int requestCode, int resultCode, Intent data) {            // TODO Auto-generated method stub            if (requestCode  == REQUEST_OK) {                Uri selectedImage = data.getData();                try {                    Bitmap bitmap = BitmapFactory.decodeStream(this                            .getContentResolver().openInputStream(Uri.parse(selectedImage.toString())));                    iv.setImageBitmap(bitmap);                    Toast.makeText(getApplicationContext(), "上传成功",                            Toast.LENGTH_SHORT).show();                } catch (FileNotFoundException e) {                    // TODO Auto-generated catch block                    e.printStackTrace();                }            }            super.onActivityResult(requestCode, resultCode, data);        }        //  public static Bitmap getPicFromBytes(byte[] bytes,    //          BitmapFactory.Options opts) {    //      if (bytes != null)    //          if (opts != null)    //              return BitmapFactory.decodeByteArray(bytes, 0, bytes.length,    //                      opts);    //          else    //              return BitmapFactory.decodeByteArray(bytes, 0, bytes.length);    //      return null;    //  }    //    //  public static byte[] readStream(InputStream in) throws Exception {    //      byte[] buffer = new byte[1024];    //      int len = -1;    //      ByteArrayOutputStream outStream = new ByteArrayOutputStream();    //    //      while ((len = in.read(buffer)) != -1) {    //          outStream.write(buffer, 0, len);    //      }    //      byte[] data = outStream.toByteArray();    //      outStream.close();    //      in.close();    //      return data;    //  }        }