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嗨我有网格视图中的图像。当我点击我的网格视图图像时，它将全屏显示。如果我想要查看其他图像，请在网格视图中返回，然后在全屏中选择其他图像视图。我觉得这是很难的..所以我试图用刷卡....不知道如何创建此方法请指导我，给了一些不错的代码还可以查看图像全屏视图...如何查看imageview中的下一张图片？
这是我的工作的应用程序的屏幕截图：
源代码：1. ImageViewExample.java
public class ImageViewExample extends Activity {
/** Called when the activity is first created. */
private Cursor imagecursor, actualimagecursor;
private int image_column_index, actual_image_column_index;
GridView imagegrid;
private int count;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
init_phone_image_grid();
}
private void init_phone_image_grid() {
String[] img = { MediaStore.Images.Thumbnails._ID };
imagecursor = managedQuery(
MediaStore.Images.Thumbnails.EXTERNAL_CONTENT_URI, img, null,
null, MediaStore.Images.Thumbnails.IMAGE_ID + "");
image_column_index = imagecursor
.getColumnIndexOrThrow(MediaStore.Images.Thumbnails._ID);
count = imagecursor.getCount();
imagegrid = (GridView) findViewById(R.id.PhoneImageGrid);
imagegrid.setAdapter(new ImageAdapter(getApplicationContext()));
imagegrid.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView parent, View v,int position, long id) {
System.gc();
String[] proj = { MediaStore.Images.Media.DATA };
actualimagecursor = managedQuery(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, proj,
null, null, null);
actual_image_column_index = actualimagecursor
.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
actualimagecursor.moveToPosition(position);
String i = actualimagecursor.getString(actual_image_column_index);
System.gc();
Intent intent = new Intent(getApplicationContext(), ViewImage.class);
intent.putExtra("filename", i);
startActivity(intent);
}
});
}
public class ImageAdapter extends BaseAdapter {
private Context mContext;
public ImageAdapter(Context c) {
mContext = c;
}
public int getCount() {
return count;
}
public Object getItem(int position) {
return position;
}
public long getItemId(int position) {
return position;
}
public View getView(int position,View convertView,ViewGroup parent) {
System.gc();
ImageView i = new ImageView(mContext.getApplicationContext());
if (convertView == null) {
imagecursor.moveToPosition(position);
int id = imagecursor.getInt(image_column_index);
i.setImageURI(Uri.withAppendedPath(MediaStore.Images.Thumbnails.EXTERNAL_CONTENT_URI, ""+ id));
i.setScaleType(ImageView.ScaleType.CENTER_CROP);
i.setLayoutParams(new GridView.LayoutParams(92, 92));
}
else {
i = (ImageView) convertView;
}
return i;
}
}
}
ViewImage.java
public class ViewImage extends Activity {
private String filename;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
System.gc();
Intent i = getIntent();
Bundle extras = i.getExtras();
BitmapFactory.Options bfo = new BitmapFactory.Options();
bfo.inSampleSize = 2;
filename = extras.getString("filename");
ImageView iv = new ImageView(getApplicationContext());
Bitmap bm = BitmapFactory.decodeFile(filename, bfo);
iv.setImageBitmap(bm);
setContentView(iv);
}
}
如何将此代码用于我的代码？请告诉我，我很困惑...... – balaji 2012-03-20 10:09:11
我想现在你可以做对了吗？ – Hasmukh 2012-03-20 10:17:14
如果我点击b_wall按钮力关闭应用程序的logcat：表示错误我有什么权限在此应用程序可以给.... – balaji 2012-03-20 10:50:03