我想从左向右滑动或移动图像。 我尝试了一下但没有这样做我使用下面的代码 我从parse.com从URL检索图像 我的第一个活动,我将图像的int位置和URL传递给我的第二个活动
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.listview_main);
Intent i = getIntent();
// Get the name
name = i.getStringExtra("name").replace(" ", "_");
position = i.getExtras().getInt("id");
Log.d("Tag Name", position+name);
// Execute RemoteDataTask AsyncTask
new RemoteDataTask().execute();
}
// RemoteDataTask AsyncTask
private class RemoteDataTask extends AsyncTask<Void, Void, Void> {
@Override
protected void onPreExecute() {
super.onPreExecute();
mProgressDialog = new ProgressDialog(MyFirstActivity.this);
mProgressDialog.setTitle("Listing...");
mProgressDialog.setMessage("Loading...");
mProgressDialog.setIndeterminate(false);
mProgressDialog.show();
}
@Override
protected Void doInBackground(Void... params) {
// Locate the class in Parse.com
ParseQuery<ParseObject> query = new ParseQuery<ParseObject>(
name);
query.orderByAscending("sort");
try {
ob = query.find();
} catch (ParseException e) {
Log.e("Error", e.getMessage());
e.printStackTrace();
}
return null;
}
@Override
protected void onPostExecute(Void result) {
listview = (ListView) findViewById(R.id.listview);
adapter = new ArrayAdapter<String>(MyFirstActivity.this,
R.layout.listview_item,R.id.text);
// Retrieve object Parse.com database
for (ParseObject country : ob) {
adapter.add((String) country.get("name"));
country.get("Murl");
}
listview.setAdapter(adapter);
mProgressDialog.dismiss();
listview.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
Intent i = new Intent(MyFirstActivity.this,
SecondActivity.class);
// Pass data "name" followed by the position
i.putExtra("Murl", ob.get(position).getString("Murl")
.toString());
i.putExtra("id", position);
// Open SecondActivity.java Activity
startActivity(i);
}
});
}
}
在我的第二个活动中,我成功地在imageview中加载图像,但是不知道如何从左到右手指触摸加载图像? 在这里,我不知道如何使用int position和URL来加载上一个Activity的下一个图像。 这是我的第二个活动代码请帮助
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.singleitemview1);
Intent i = getIntent();
// Get the name
name = i.getStringExtra("Nurl");
position = i.getExtras().getInt("id");
Log.d("Tag Name", position + name);
img = (TouchImageView)findViewById(R.id.imge);
imgLoader = new ImageLoader(this);
imgLoader.DisplayImage(name, img);
new LoadImage().execute(name);
}
private class LoadImage extends AsyncTask<String, String, Bitmap> {
@Override
protected void onPreExecute() {
super.onPreExecute();
pDialog = new ProgressDialog(SingleItemView1.this);
pDialog.setMessage("Loading Image ....");
pDialog.show();
}
protected Bitmap doInBackground(String... args) {
try {
bitmap = BitmapFactory.decodeStream((InputStream)new URL(args[0]).getContent());
} catch (Exception e) {
e.printStackTrace();
}
return bitmap;
}
protected void onPostExecute(Bitmap image) {
if(image != null){
img.setImageBitmap(image);
pDialog.dismiss();
}else{
pDialog.dismiss();
Toast.makeText(SecondActivity.this, "Image Does Not exist or Network Error", Toast.LENGTH_SHORT).show();
}
}
}