- 我尝试在 offerDetails Activity 的后台调用我的 OffersActivity。（我正在使用 ActivityGroup 和 TabActivity）。
我收到 ArrayIndexOutOFBound 的错误...最后两个我尝试完成但它没有由我完成..引导我..解决这个问题。在我运行第一个选项卡时是 OffersActivity 在我单击时打开列表列表项打开其详细信息视图（OfferDetailsActivity）并按返回它给出错误强制关闭..
我应用了这个例子：- http://www.jtben.com/document/695851
但它给出了错误
05-15 10:35:00.755: E/AndroidRuntime(279): FATAL EXCEPTION: main 05-15 10:35:00.755: E/AndroidRuntime(279): java.lang.IndexOutOfBoundsException: Invalid index 1, size is 1 05-15 10:35:00.755: E/AndroidRuntime(279): at java.util.ArrayList.throwIndexOutOfBoundsException(ArrayList.java:257) 05-15 10:35:00.755: E/AndroidRuntime(279): at java.util.ArrayList.remove(ArrayList.java:406) 05-15 10:35:00.755: E/AndroidRuntime(279): at com.wae.saterra.view.OffersActivity.back(OffersActivity.java:149) 05-15 10:35:00.755: E/AndroidRuntime(279): at com.wae.saterra.view.OffersActivity.onBackPressed(OffersActivity.java:173) 05-15 10:35:00.755: E/AndroidRuntime(279): at android.app.Activity.onKeyUp(Activity.java:1888) 05-15 10:35:00.755: E/AndroidRuntime(279): at android.view.KeyEvent.dispatch(KeyEvent.java:1061) 05-15 10:35:00.755: E/AndroidRuntime(279): at android.app.Activity.dispatchKeyEvent(Activity.java:2068) 05-15 10:35:00.755: E/AndroidRuntime(279): at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchKeyEvent(PhoneWindow.java:1643) 05-15 10:35:00.755: E/AndroidRuntime(279): at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:788) 05-15 10:35:00.755: E/AndroidRuntime(279): at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:788) 05-15 10:35:00.755: E/AndroidRuntime(279): at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:788) 05-15 10:35:00.755: E/AndroidRuntime(279): at android.widget.TabHost.dispatchKeyEvent(TabHost.java:275) 05-15 10:35:00.755: E/AndroidRuntime(279): at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:788) 05-15 10:35:00.755: E/AndroidRuntime(279): at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:788) 05-15 10:35:00.755: E/AndroidRuntime(279): at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:788) 05-15 10:35:00.755: E/AndroidRuntime(279): at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:788) 05-15 10:35:00.755: E/AndroidRuntime(279): at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchKeyEvent(PhoneWindow.java:1667) 05-15 10:35:00.755: E/AndroidRuntime(279): at com.android.internal.policy.impl.PhoneWindow.superDispatchKeyEvent(PhoneWindow.java:1102) 05-15 10:35:00.755: E/AndroidRuntime(279): at android.app.Activity.dispatchKeyEvent(Activity.java:2063) 05-15 10:35:00.755: E/AndroidRuntime(279): at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchKeyEvent(PhoneWindow.java:1643) 05-15 10:35:00.755: E/AndroidRuntime(279): at android.view.ViewRoot.deliverKeyEventToViewHierarchy(ViewRoot.java:2471) 05-15 10:35:00.755: E/AndroidRuntime(279): at android.view.ViewRoot.handleFinishedEvent(ViewRoot.java:2441) 05-15 10:35:00.755: E/AndroidRuntime(279): at android.view.ViewRoot.handleMessage(ViewRoot.java:1735) 05-15 10:35:00.755: E/AndroidRuntime(279): at android.os.Handler.dispatchMessage(Handler.java:99) 05-15 10:35:00.755: E/AndroidRuntime(279): at android.os.Looper.loop(Looper.java:123) 05-15 10:35:00.755: E/AndroidRuntime(279): at android.app.ActivityThread.main(ActivityThread.java:4627) 05-15 10:35:00.755: E/AndroidRuntime(279): at java.lang.reflect.Method.invokeNative(Native Method) 05-15 10:35:00.755: E/AndroidRuntime(279): at java.lang.reflect.Method.invoke(Method.java:521) 05-15 10:35:00.755: E/AndroidRuntime(279): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868) 05-15 10:35:00.755: E/AndroidRuntime(279): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626) 05-15 10:35:00.755: E/AndroidRuntime(279): at dalvik.system.NativeStart.main(Native Method)我的代码：
选项卡活动
'扩展 TabActivity { TabHost tabHost;
@Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.sattera_tab_activity); tabHost = getTabHost(); init(); } private void init() { Intent intent; intent=new Intent().setClass(this, OffersActivity.class); tabHost.addTab(tabHost .newTabSpec("OffersActivity") .setIndicator("OffersActivity", getResources().getDrawable(R.drawable.ic_prominent)) .setContent(intent)); // tabHost.addTab(tabHost.newTabSpec(null) // .setIndicator(null, getResources().getDrawable(R.drawable.ic_prominent)) // .setContent(new Intent(this,OffersActivity.class))); tabHost.addTab(tabHost.newTabSpec(null) .setIndicator(null, getResources().getDrawable(R.drawable.ic_products)) .setContent(new Intent(this,ProductsActivity.class))); tabHost.addTab(tabHost.newTabSpec(null) .setIndicator(null, getResources().getDrawable(R.drawable.ic_service_ol)) .setContent(new Intent(this,ServiceActivity.class))); tabHost.addTab(tabHost.newTabSpec(null) .setIndicator(null, getResources().getDrawable(R.drawable.ic_tenda_ol)) .setContent(new Intent(this,TendaOLActivity.class))); tabHost.addTab(tabHost.newTabSpec(null) .setIndicator(null, getResources().getDrawable(R.drawable.ic_notify)) .setContent(new Intent(this,ContactUsActivity.class))); //int currentTab = getIntent().getExtras().getInt(OffersActivity.TAB_ID); tabHost.setCurrentTab(0); // Intent intent; // intent=new Intent().setClass(this, OffersActivity.class); // tabHost.addTab(tabHost // .newTabSpec(null) // .setIndicator(null, // getResources().getDrawable(R.drawable.ic_prominent)) // .setContent(intent)); // intent=new Intent().setClass(this, ProductsActivity.class); // tabHost.addTab(tabHost // .newTabSpec(null) // .setIndicator(null, // getResources().getDrawable(R.drawable.ic_products)) // .setContent(intent)); // intent=new Intent().setClass(this, ServiceActivity.class); // tabHost.addTab(tabHost // .newTabSpec(null) // .setIndicator(null, // getResources().getDrawable(R.drawable.ic_service_ol)) // .setContent(intent)); // intent=new Intent().setClass(this, TendaOLActivity.class); // tabHost.addTab(tabHost // .newTabSpec(null) // .setIndicator(null, // getResources().getDrawable(R.drawable.ic_tenda_ol)) // .setContent(intent)); // intent=new Intent().setClass(this, ContactUsActivity.class); // tabHost.addTab(tabHost // .newTabSpec(null) // .setIndicator(null, // getResources().getDrawable(R.drawable.ic_notify)) // .setContent(intent)); // // tabHost.setCurrentTab(2); //}
}'
1) 优惠活动
'public class OffersActivity extends ActivityGroup implements OnItemClickListener { CustomArrayAdapter adapter; ListView lvProducts; ArrayList<Products> productObj; Products product; public static OffersActivity group; private ArrayList<View> history; // View rootView; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.product_list); this.history = new ArrayList<View>(); group = this; init(); // hideFB(); // hideTwitter(); setTitle(getResources().getString(R.string.title_offer)); // API Call if (Global.isNetworkAvailable(OffersActivity.this)) { new ProductAsyncTask().execute(Constants.url); } else { Intent intent = new Intent(OffersActivity.this, OfflineActivity.class); startActivity(intent); // AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder( // this); // // // set title // alertDialogBuilder.setTitle("No Internet Connection Available "); // // // set dialog message // alertDialogBuilder // .setMessage("Click yes to exit!") // .setCancelable(false) // .setPositiveButton("Yes", // new DialogInterface.OnClickListener() { // public void onClick(DialogInterface dialog, // int id) { // Intent intent = new Intent( // OffersActivity.this, // OffersActivity.class); // startActivity(intent); // // } // }); // // AlertDialog alertDialog = alertDialogBuilder.create(); // // show it // alertDialog.show(); } } @Override protected void onResume() { super.onResume(); if (adapter != null) { adapter.notifyDataSetChanged(); } } private void init() { productObj = new ArrayList<Products>(); lvProducts = (ListView) findViewById(R.id.lv_products); lvProducts.setOnItemClickListener(this); } @Override public void onItemClick(AdapterView<?> parent, View v, int position, long id) { Intent intent = new Intent(OffersActivity.this, OffersDetailActivity.class); intent.putExtra("product", (Products) productObj.get(position)); // startActivity(intent); View view = getLocalActivityManager().startActivity("OffersDetailActivity", intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP)).getDecorView(); replaceView(view); } public void loadData() { adapter = new CustomArrayAdapter(OffersActivity.this, R.layout.product_list_row, productObj); lvProducts.setAdapter(adapter); } protected void back() { if(history.size() > 0) { history.remove(history.size()); setContentView(history.get(history.size())); }else { finish(); } } protected void replaceView(View view) { // if (history.size() == 0) { // if (rootView != null) { // history.add(rootView); // rootView = null; // } // } // Adds the old one to history history.add(view); // Changes this Groups View to the new View. setContentView(view); } @Override public void onBackPressed() { OffersActivity.group.back(); return; } public class ProductAsyncTask extends AsyncTask<String, String, ArrayList<Products>> { String responseString = null; ProgressDialog progressDialog; public ProductAsyncTask() { super(); progressDialog = new ProgressDialog(OffersActivity.this); progressDialog.setCancelable(false); } @Override protected void onPreExecute() { super.onPreExecute(); progressDialog.setMessage("Loading..."); progressDialog.show(); } @Override protected ArrayList<Products> doInBackground(String... params) { responseString = readJSONSFeed(params[0]); if (responseString != null) { return processUserListJSON(responseString); } else { return null; } } @Override protected void onPostExecute(ArrayList<Products> result) { super.onPostExecute(result); if (result.size() == 0 || result == null) { } progressDialog.dismiss(); loadData(); } private String readJSONSFeed(String url) { StringBuilder stringBuilder = new StringBuilder(); HttpClient httpClient = new DefaultHttpClient(); HttpGet httpGet = new HttpGet(url + Constants.REQ_FOR_OFFER); try { HttpResponse response = httpClient.execute(httpGet); StatusLine statusLine = response.getStatusLine(); int statuscode = statusLine.getStatusCode(); if (statuscode == 200) { HttpEntity httpEntity = response.getEntity(); InputStream inputStream = httpEntity.getContent(); BufferedReader buffer = new BufferedReader( new InputStreamReader(inputStream)); String line = null; if ((line = buffer.readLine()) != null) { stringBuilder.append(line); } // buffer.close(); inputStream.close(); } else { } } catch (Exception e) { } return stringBuilder.toString(); } private synchronized ArrayList<Products> processUserListJSON( String response) { try { JSONObject json = new JSONObject(response); JSONArray Records = json .getJSONArray(Constants.JSON_OBJECT_DATA); for (int i = 0; i < Records.length(); i++) { JSONObject Record = Records.getJSONObject(i); String tProductID = Record.getString("product_id"); String tTitle = Record.getString("title"); String tImage = Record.getString("image"); String tDetails = Record.getString("short_description"); String tLongDetails = Record.getString("long_description"); String tOffer = Record.getString("offer"); String tActive = Record.getString("active"); String tPromoText = Record.getString("promotion_text"); String tProminent = Record.getString("prominent"); product = new Products(tProductID, tTitle, tDetails, tLongDetails, tImage, tOffer, tActive, tPromoText, tProminent); if (product == null) { } else { productObj.add(product); } } } catch (JSONException ex) { System.out.println(ex); return null; } return productObj; } } }'优惠详情活动
'
public class OffersDetailActivity extends Activity implements OnClickListener, OnItemSelectedListener { Gallery Gallery; 文本视图 prod_descri、productTitle1、productTitle2；图像适配器图像适配器；ImageView 左箭头，右箭头；私有int selectedImagePosition = 0; 私有列表drawables；字符串标题，url，title1；捆绑 b; 产品产品；产品详情 pDetails; ArrayList 产品列表；按钮 btnFacebook、btnTwitter；@Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.products_details); init(); setTitle(getResources().getString(R.string.title_offer)); b = getIntent().getExtras(); product = (Products) b.getSerializable("product"); if (b != null) { if (Global.isNetworkAvailable(OffersDetailActivity.this)) { new ProductAsyncTask().execute(Constants.url, product.product_id); } else { Intent intent = new Intent(OffersDetailActivity.this, OfflineActivity.class); startActivity(intent); } } else { } }// @Override // public void onBackPressed() { // OffersActivity.group.back(); // // super.onBackPressed(); // // }
private void init() { productList = new ArrayList<ProductDetails>(); gallery = (Gallery) findViewById(R.id.product_gallery); prod_descri = (TextView) findViewById(R.id.product_desc); productTitle1 = (TextView) findViewById(R.id.productTitle1); productTitle2 = (TextView) findViewById(R.id.productTitle2); leftArrow = (ImageView) findViewById(R.id.left_arrow_imageview); rightArrow = (ImageView) findViewById(R.id.right_arrow_imageview); btnFacebook = (Button) findViewById(R.id.btnFB); btnFacebook = (Button) findViewById(R.id.btnTwitter); //btnFacebook.setOnClickListener(this); // btnTwitter.setOnClickListener(this); leftArrow.setOnClickListener(this); rightArrow.setOnClickListener(this); gallery.setOnItemSelectedListener(this); } @Override public void onClick(View v) { switch (v.getId()) { case R.id.left_arrow_imageview: if (selectedImagePosition > 0) { // leftArrow.setVisibility(View.VISIBLE); --selectedImagePosition; } else if (selectedImagePosition == 0) { leftArrow.setVisibility(View.GONE); rightArrow.setVisibility(View.VISIBLE); } gallery.setSelection(selectedImagePosition, true); break; case R.id.right_arrow_imageview: if (selectedImagePosition < drawables.size() - 1) { // rightArrow.setVisibility(View.VISIBLE); ++selectedImagePosition; } else if (selectedImagePosition == drawables.size() - 1) { rightArrow.setVisibility(View.GONE); leftArrow.setVisibility(View.VISIBLE); } gallery.setSelection(selectedImagePosition, true); break; default: break; } } @Override public void onItemSelected(AdapterView<?> parent, View view, int position, long id) { selectedImagePosition = position; productTitle1.setText(product.title); productTitle2.setText(productList.get(position).title); prod_descri.setText(productList.get(position).description); if (selectedImagePosition > 0 && selectedImagePosition < drawables.size() - 1) { leftArrow.setVisibility(View.VISIBLE); rightArrow.setVisibility(View.VISIBLE); } else if (selectedImagePosition == 0) { leftArrow.setVisibility(View.GONE); } else if (selectedImagePosition == drawables.size() - 1) { rightArrow.setVisibility(View.GONE); } // setSelectedImage(selectedImagePosition); } @Override public void onNothingSelected(AdapterView<?> arg0) { } // AsyncTask public class ProductAsyncTask extends AsyncTask<String, String, ArrayList<ProductDetails>> { private Context getDialogContext() { Context context; if (getParent() != null) context = getParent(); else context = OffersDetailActivity.this; return context; } String responseString = null; ProgressDialog progressDialog; public ProductAsyncTask() { super(); // progressDialog = new ProgressDialog(ProductDetailsActivity.this); progressDialog = new ProgressDialog(getDialogContext()); progressDialog.setCancelable(false); } @Override protected void onPreExecute() { super.onPreExecute(); progressDialog.setMessage("Loading..."); progressDialog.show(); } @Override protected ArrayList<ProductDetails> doInBackground(String... params) { responseString = readJSONSFeed(params[0], params[1]); if (responseString != null) { return processProductDetailsJSON(responseString); } else { return null; } } @Override protected void onPostExecute(ArrayList<ProductDetails> result) { super.onPostExecute(result); if (result.size() == 0 || result == null) { } progressDialog.dismiss(); drawables = createDrawables(result); imageAdapter = new ImageAdapter(OffersDetailActivity.this, drawables); if (drawables.size() > 0) { gallery.setSelection(selectedImagePosition, true); } if (drawables.size() == 1) { leftArrow.setVisibility(View.GONE); rightArrow.setVisibility(View.GONE); } gallery.setAdapter(imageAdapter); } private List<Drawable> createDrawables(ArrayList<ProductDetails> result) { List<Drawable> drawablesUrl = new ArrayList<Drawable>(); try { for (ProductDetails objProDetails : result) { drawablesUrl.add(Global .getBitmapFromURL(objProDetails.image_path)); // drawablesUrl.add(loadImageFromURL(objProDetails.image_path)); } return drawablesUrl; } catch (Exception e) { return null; } } @SuppressWarnings("unused") private Drawable loadImageFromURL(String image_path) { try { InputStream is = (InputStream) new URL(url).getContent(); Drawable d = Drawable.createFromStream(is, "src name"); return d; } catch (Exception e) { return null; } } private String readJSONSFeed(String url, String productID) { StringBuilder stringBuilder = new StringBuilder(); HttpClient httpClient = new DefaultHttpClient(); HttpGet httpGet = new HttpGet(url + Constants.REQ_FOR_PRODUCT_IMAGE + productID + Constants.REQ_FOR_OFFER); try { HttpResponse response = httpClient.execute(httpGet); StatusLine statusLine = response.getStatusLine(); int statuscode = statusLine.getStatusCode(); if (statuscode == 200) { HttpEntity httpEntity = response.getEntity(); InputStream inputStream = httpEntity.getContent(); BufferedReader buffer = new BufferedReader( new InputStreamReader(inputStream)); String line = null; if ((line = buffer.readLine()) != null) { stringBuilder.append(line); } // buffer.close(); inputStream.close(); } else { } } catch (Exception e) { } return stringBuilder.toString(); } private synchronized ArrayList<ProductDetails> processProductDetailsJSON( String response) { try { JSONObject json = new JSONObject(response); JSONArray Records = json .getJSONArray(Constants.JSON_OBJECT_DATA); for (int i = 0; i < Records.length(); i++) { JSONObject Record = Records.getJSONObject(i); String tTitle = Record.getString("title"); String tImagePath = Record.getString("image_path"); String tDescription = Record.getString("description"); pDetails = new ProductDetails(tDescription, tTitle, tImagePath); if (pDetails == null) { Log.v("SATERRA", "product object null"); } else { productList.add(pDetails); Log.v("SATERRA", "product details title =" + productList.get(i).title); } } } catch (JSONException ex) { System.out.println(ex); return null; } return productList; } }}'
- 我收到 ArrayIndexOutOFBound 的错误...最后两个我尝试完成但它没有由我完成..引导我..解决这个问题。在我运行第一个选项卡时是 OffersActivity 在我单击时打开列表列表项打开其详细信息视图（OfferDetailsActivity）并按返回它给出错误强制关闭..
问问题
592 次
2 回答
5
- this solve ...use this Code..
1)OffersActivityGroup add one Activity to add your root activity...
public class OffersActivityGroup extends ActivityGroup {
public static OffersActivityGroup group;
private ArrayList<View> history;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
this.history = new ArrayList<View>();
group = this;
// Start the root activity withing the group and get its view
View view = getLocalActivityManager().startActivity(
"OffersActivity",
new Intent(this, OffersActivity.class)
.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP))
.getDecorView();
// Replace the view of this ActivityGroup
replaceView(view);
}
public void replaceView(View v) {
// Adds the old one to history
history.add(v);
// Changes this Groups View to the new View.
setContentView(v);
}
public void back() {
if (history.size() > 0) {
history.remove(history.size() - 1);
setContentView(history.get(history.size() - 1));
} else {
finish();
}
}
@Override
public void onBackPressed() {
OffersActivityGroup.group.back();
return;
}
}
2)OffersActivity
public class OffersActivity extends Activity implements OnItemClickListener {
CustomArrayAdapter adapter;
ListView lvProducts;
ArrayList<Products> productObj;
Products product;
// View rootView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.product_list);
init();
// hideFB();
// hideTwitter();
setTitle(getResources().getString(R.string.title_offer));
// API Call
if (Global.isNetworkAvailable(OffersActivity.this)) {
new ProductAsyncTask().execute(Constants.url);
} else {
Intent intent = new Intent(OffersActivity.this,
OfflineActivity.class);
startActivity(intent);
}
}
@Override
protected void onResume() {
super.onResume();
if (adapter != null) {
adapter.notifyDataSetChanged();
}
}
private void init() {
productObj = new ArrayList<Products>();
lvProducts = (ListView) findViewById(R.id.lv_products);
lvProducts.setOnItemClickListener(this);
}
@Override
public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
Intent intent = new Intent(OffersActivity.this,
OffersDetailActivity.class);
intent.putExtra("product", (Products) productObj.get(position));
View view = OffersActivityGroup.group
.getLocalActivityManager()
.startActivity("OffersDetailActivity",
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP))
.getDecorView();
OffersActivityGroup.group.replaceView(view);
}
public void loadData() {
adapter = new CustomArrayAdapter(OffersActivity.this,
R.layout.product_list_row, productObj);
lvProducts.setAdapter(adapter);
}
// @Override
// public void onBackPressed() {
// OffersActivity.group.back();
// return;
// }
public class ProductAsyncTask extends
AsyncTask<String, String, ArrayList<Products>> {
String responseString = null;
ProgressDialog progressDialog;
public ProductAsyncTask() {
super();
progressDialog = new ProgressDialog(getParent());
progressDialog.setCancelable(false);
}
@Override
protected void onPreExecute() {
super.onPreExecute();
progressDialog.setMessage("Loading...");
progressDialog.show();
}
@Override
protected ArrayList<Products> doInBackground(String... params) {
responseString = readJSONSFeed(params[0]);
if (responseString != null) {
return processUserListJSON(responseString);
} else {
return null;
}
}
@Override
protected void onPostExecute(ArrayList<Products> result) {
super.onPostExecute(result);
if (result.size() == 0 || result == null) {
}
progressDialog.dismiss();
loadData();
}
private String readJSONSFeed(String url) {
StringBuilder stringBuilder = new StringBuilder();
HttpClient httpClient = new DefaultHttpClient();
HttpGet httpGet = new HttpGet(url + Constants.REQ_FOR_OFFER);
try {
HttpResponse response = httpClient.execute(httpGet);
StatusLine statusLine = response.getStatusLine();
int statuscode = statusLine.getStatusCode();
if (statuscode == 200) {
HttpEntity httpEntity = response.getEntity();
InputStream inputStream = httpEntity.getContent();
BufferedReader buffer = new BufferedReader(
new InputStreamReader(inputStream));
String line = null;
if ((line = buffer.readLine()) != null) {
stringBuilder.append(line);
}
// buffer.close();
inputStream.close();
} else {
}
} catch (Exception e) {
}
return stringBuilder.toString();
}
private synchronized ArrayList<Products> processUserListJSON(
String response) {
try {
JSONObject json = new JSONObject(response);
JSONArray Records = json
.getJSONArray(Constants.JSON_OBJECT_DATA);
for (int i = 0; i < Records.length(); i++) {
JSONObject Record = Records.getJSONObject(i);
String tProductID = Record.getString("product_id");
String tTitle = Record.getString("title");
String tImage = Record.getString("image");
String tDetails = Record.getString("short_description");
String tLongDetails = Record.getString("long_description");
String tOffer = Record.getString("offer");
String tActive = Record.getString("active");
String tPromoText = Record.getString("promotion_text");
String tProminent = Record.getString("prominent");
product = new Products(tProductID, tTitle, tDetails,
tLongDetails, tImage, tOffer, tActive, tPromoText,
tProminent);
if (product == null) {
} else {
productObj.add(product);
}
}
} catch (JSONException ex) {
System.out.println(ex);
return null;
}
return productObj;
}
}
}
2)OfferDetailsActivity
public class OffersDetailActivity extends Activity implements
OnClickListener, OnItemSelectedListener {
Gallery gallery;
TextView prod_descri, productTitle1, productTitle2;
ImageAdapter imageAdapter;
ImageView leftArrow, rightArrow;
private int selectedImagePosition = 0;
private List<Drawable> drawables;
String title, url, title1;
Bundle b;
Products product;
ProductDetails pDetails;
ArrayList<ProductDetails> productList;
Button btnFacebook, btnTwitter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.products_details);
init();
setTitle(getResources().getString(R.string.title_offer));
b = getIntent().getExtras();
product = (Products) b.getSerializable("product");
if (b != null) {
if (Global.isNetworkAvailable(OffersDetailActivity.this)) {
new ProductAsyncTask().execute(Constants.url,
product.product_id);
} else {
Intent intent = new Intent(OffersDetailActivity.this,
OfflineActivity.class);
startActivity(intent);
}
} else {
}
}
// @Override
// public void onBackPressed() {
// OffersActivity.group.back();
// // super.onBackPressed();
//
// }
private void init() {
productList = new ArrayList<ProductDetails>();
gallery = (Gallery) findViewById(R.id.product_gallery);
prod_descri = (TextView) findViewById(R.id.product_desc);
productTitle1 = (TextView) findViewById(R.id.productTitle1);
productTitle2 = (TextView) findViewById(R.id.productTitle2);
leftArrow = (ImageView) findViewById(R.id.left_arrow_imageview);
rightArrow = (ImageView) findViewById(R.id.right_arrow_imageview);
btnFacebook = (Button) findViewById(R.id.btnFB);
btnFacebook = (Button) findViewById(R.id.btnTwitter);
//btnFacebook.setOnClickListener(this);
// btnTwitter.setOnClickListener(this);
leftArrow.setOnClickListener(this);
rightArrow.setOnClickListener(this);
gallery.setOnItemSelectedListener(this);
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.left_arrow_imageview:
if (selectedImagePosition > 0) {
// leftArrow.setVisibility(View.VISIBLE);
--selectedImagePosition;
} else if (selectedImagePosition == 0) {
leftArrow.setVisibility(View.GONE);
rightArrow.setVisibility(View.VISIBLE);
}
gallery.setSelection(selectedImagePosition, true);
break;
case R.id.right_arrow_imageview:
if (selectedImagePosition < drawables.size() - 1) {
// rightArrow.setVisibility(View.VISIBLE);
++selectedImagePosition;
} else if (selectedImagePosition == drawables.size() - 1) {
rightArrow.setVisibility(View.GONE);
leftArrow.setVisibility(View.VISIBLE);
}
gallery.setSelection(selectedImagePosition, true);
break;
default:
break;
}
}
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position,
long id) {
selectedImagePosition = position;
productTitle1.setText(product.title);
productTitle2.setText(productList.get(position).title);
prod_descri.setText(productList.get(position).description);
if (selectedImagePosition > 0
&& selectedImagePosition < drawables.size() - 1) {
leftArrow.setVisibility(View.VISIBLE);
rightArrow.setVisibility(View.VISIBLE);
} else if (selectedImagePosition == 0) {
leftArrow.setVisibility(View.GONE);
} else if (selectedImagePosition == drawables.size() - 1) {
rightArrow.setVisibility(View.GONE);
}
// setSelectedImage(selectedImagePosition);
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
}
// AsyncTask
public class ProductAsyncTask extends
AsyncTask<String, String, ArrayList<ProductDetails>> {
private Context getDialogContext() {
Context context;
if (getParent() != null)
context = getParent();
else
context = OffersDetailActivity.this;
return context;
}
String responseString = null;
ProgressDialog progressDialog;
public ProductAsyncTask() {
super();
// progressDialog = new ProgressDialog(ProductDetailsActivity.this);
progressDialog = new ProgressDialog(getDialogContext());
progressDialog.setCancelable(false);
}
@Override
protected void onPreExecute() {
super.onPreExecute();
progressDialog.setMessage("Loading...");
progressDialog.show();
}
@Override
protected ArrayList<ProductDetails> doInBackground(String... params) {
responseString = readJSONSFeed(params[0], params[1]);
if (responseString != null) {
return processProductDetailsJSON(responseString);
} else {
return null;
}
}
@Override
protected void onPostExecute(ArrayList<ProductDetails> result) {
super.onPostExecute(result);
if (result.size() == 0 || result == null) {
}
progressDialog.dismiss();
drawables = createDrawables(result);
imageAdapter = new ImageAdapter(OffersDetailActivity.this,
drawables);
if (drawables.size() > 0) {
gallery.setSelection(selectedImagePosition, true);
}
if (drawables.size() == 1) {
leftArrow.setVisibility(View.GONE);
rightArrow.setVisibility(View.GONE);
}
gallery.setAdapter(imageAdapter);
}
private List<Drawable> createDrawables(ArrayList<ProductDetails> result) {
List<Drawable> drawablesUrl = new ArrayList<Drawable>();
try {
for (ProductDetails objProDetails : result) {
drawablesUrl.add(Global
.getBitmapFromURL(objProDetails.image_path));
// drawablesUrl.add(loadImageFromURL(objProDetails.image_path));
}
return drawablesUrl;
} catch (Exception e) {
return null;
}
}
@SuppressWarnings("unused")
private Drawable loadImageFromURL(String image_path) {
try {
InputStream is = (InputStream) new URL(url).getContent();
Drawable d = Drawable.createFromStream(is, "src name");
return d;
} catch (Exception e) {
return null;
}
}
private String readJSONSFeed(String url, String productID) {
StringBuilder stringBuilder = new StringBuilder();
HttpClient httpClient = new DefaultHttpClient();
HttpGet httpGet = new HttpGet(url + Constants.REQ_FOR_PRODUCT_IMAGE
+ productID + Constants.REQ_FOR_OFFER);
try {
HttpResponse response = httpClient.execute(httpGet);
StatusLine statusLine = response.getStatusLine();
int statuscode = statusLine.getStatusCode();
if (statuscode == 200) {
HttpEntity httpEntity = response.getEntity();
InputStream inputStream = httpEntity.getContent();
BufferedReader buffer = new BufferedReader(
new InputStreamReader(inputStream));
String line = null;
if ((line = buffer.readLine()) != null) {
stringBuilder.append(line);
}
// buffer.close();
inputStream.close();
} else {
}
} catch (Exception e) {
}
return stringBuilder.toString();
}
private synchronized ArrayList<ProductDetails> processProductDetailsJSON(
String response) {
try {
JSONObject json = new JSONObject(response);
JSONArray Records = json
.getJSONArray(Constants.JSON_OBJECT_DATA);
for (int i = 0; i < Records.length(); i++) {
JSONObject Record = Records.getJSONObject(i);
String tTitle = Record.getString("title");
String tImagePath = Record.getString("image_path");
String tDescription = Record.getString("description");
pDetails = new ProductDetails(tDescription, tTitle,
tImagePath);
if (pDetails == null) {
} else {
productList.add(pDetails);
}
}
} catch (JSONException ex) {
System.out.println(ex);
return null;
}
return productList;
}
}
}
于 2013-05-15T06:19:51.927 回答
0
您在启动第二个活动时犯的错误：
@Override
public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
Intent intent = new Intent(ProductsActivity.this,
ProductDetailsActivity.class);
intent.putExtra("product", (Products) productObj.get(position));
// startActivity(intent);
View view = getLocalActivityManager()
.startActivity("product",intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP))
.getDecorView();
replaceView(view);
}
错误：
您正在添加 FLAG_ACTIVITY_CLEAR_TOP，它将清除您的活动堆栈，而不是您应该通过添加 FLAG_ACTIVITY_REORDER_TO_FRONT 标志将下一个活动放在前面。
解决方案：
@Override
public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
Intent intent = new Intent(ProductsActivity.this, ProductDetailsActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT);
View view= getLocalActivityManager().startActivity("product", intent).getDecorView();
// Again, replace the view
replaceView(view);
}
于 2013-05-13T11:03:49.070 回答