Android 自定义listview滚动时应用程序崩溃
我使用Webservice获取数据。我使用了自定义的lisatview。我在imagebutton中设置图像。但我向上向下滚动，然后应用程序崩溃。下面是我的代码Android 自定义listview滚动时应用程序崩溃,android,listview,android-intent,bitmap,Android,Listview,Android Intent,Bitmap,我使用Webservice获取数据。我使用了自定义的lisatview。我在imagebutton中设置图像。但我向上向下滚动，然后应用程序崩溃。下面是我的代码 public class HomeFragment extends Fragment { ListView lv; ArrayList<All_list_home_dto> list = new ArrayList<All_list_home_dto>(); MyListAdapter
public class HomeFragment extends Fragment {
ListView lv;
ArrayList<All_list_home_dto> list = new ArrayList<All_list_home_dto>();
MyListAdapter adt;
All_list_home_dto list_home;
String cityName;
View rootView;
private static final long DOUBLE_PRESS_INTERVAL = 250; // in millis
private long lastPressTime;
boolean mHasDoubleClicked;
private ProgressDialog progress;
MyApplication app;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
rootView = inflater.inflate(R.layout.home, container, false);
app = (MyApplication) getActivity().getApplicationContext();
lv = (ListView) rootView.findViewById(R.id.home_listview);
cityName = getActivity().getIntent().getExtras().getString("cityName")
.toString();
if (android.os.Build.VERSION.SDK_INT > 9) {
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder()
.permitAll().build();
StrictMode.setThreadPolicy(policy);
}
if (cityName.trim().equals("")) {
Toast.makeText(getActivity().getApplicationContext(),
" No City Name Available ", Toast.LENGTH_LONG).show();
} else {
progress = new ProgressDialog(getActivity());
progress.setMessage("Loading...");
new JSONTask(progress).execute("Home");
}
return rootView;
}
public class JSONTask extends AsyncTask<String, Void, String> {
public JSONTask(ProgressDialog progress) {
progress = progress;
}
public void onPreExecute() {
progress.show();
}
@Override
protected String doInBackground(String... arg) {
String listSize = "";
Log.v("log_tag", "list DoinBaCK ");
list = DBAdpter.getNewsData(cityName);
Log.v("log_tag", "list_size :: " + list.size());
listSize = list.size() + "";
return listSize; // This value will be returned to your
// onPostExecute(result) method
}
@Override
protected void onPostExecute(String result) {
// Create here your JSONObject...
Log.v("log_tag", "list ON Post");
if (Integer.parseInt(result) > 0) {
adt = new MyListAdapter(getActivity());
lv.setAdapter(adt);
} else {
Toast.makeText(getActivity().getApplicationContext(),
" No Stroe Data Available ", Toast.LENGTH_LONG).show();
}
progress.dismiss();
}
// You'll have to override this method on your other tasks that extend
// from this one and use your JSONObject as needed
}
public class MyListAdapter extends BaseAdapter {
private LayoutInflater mInflater;
public MyListAdapter(Context context) {
mInflater = LayoutInflater.from(context);
}
public int getCount() {
return list.size();
}
public Object getItem(int position) {
return position;
}
public long getItemId(int position) {
return position;
}
public View getView(final int position, View convertView,
ViewGroup parent) {
convertView = mInflater.inflate(R.layout.custom_home_list, null);
ImageButton home_ic_img = (ImageButton) convertView
.findViewById(R.id.list_home_logo_image);
ImageButton home_big_img = (ImageButton) convertView
.findViewById(R.id.sarees_big_img);
TextView home_username_txt = (TextView) convertView
.findViewById(R.id.home_list_username);
TextView home_view_txt = (TextView) convertView
.findViewById(R.id.home_view_txt_view);
TextView itemName_txt = (TextView) convertView
.findViewById(R.id.itemName_txt);
Button close_btn = (Button) convertView
.findViewById(R.id.close_home_btn);
home_username_txt.setText(list.get(position).store_name.toString());
home_view_txt.setText("Views: "
+ list.get(position).views.toString());
itemName_txt.setText(list.get(position).name.toString());
final String uid = app.getUserID();
if (list.get(position).image.toString().trim().equals("")) {
Log.v("log_tag", "image :::: ");
home_big_img.setImageResource(R.drawable.ic_launcher);
} else {
byte[] Image_getByte;
try {
Image_getByte = Base64.decode(list.get(position).image);
ByteArrayInputStream bytes = new ByteArrayInputStream(
Image_getByte);
BitmapDrawable bmd = new BitmapDrawable(bytes);
Bitmap bm = bmd.getBitmap();
home_big_img.setImageBitmap(bm);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if (list.get(position).picture.toString().trim().equals("")) {
Log.v("log_tag", "picture :::: " );
home_ic_img.setImageResource(R.drawable.ic_launcher);
} else {
byte[] Image_getByte1;
try {
Image_getByte1 = Base64.decode(list.get(position).picture);
ByteArrayInputStream bytes1 = new ByteArrayInputStream(
Image_getByte1);
BitmapDrawable bmd1 = new BitmapDrawable(bytes1);
Bitmap bm1 = bmd1.getBitmap();
home_ic_img.setImageBitmap(bm1);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
home_big_img.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
findDoubleClick(list.get(position).store_id,
list.get(position).item_id);
if (mHasDoubleClicked) {
String msg = DBAdpter.userClosestStore(
list.get(position).item_id,
list.get(position).store_id, uid);
Toast.makeText(getActivity().getApplicationContext(),
msg, 1).show();
}
}
});
close_btn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
String msg = DBAdpter.userClosestStore(
list.get(position).item_id,
list.get(position).store_id, uid);
Toast.makeText(getActivity().getApplicationContext(), msg,
1).show();
}
});
return convertView;
}
}
private boolean findDoubleClick(final String str_id, final String itemId) {
// Get current time in nano seconds.
long pressTime = System.currentTimeMillis();
// If double click...
if (pressTime - lastPressTime <= DOUBLE_PRESS_INTERVAL) {
mHasDoubleClicked = true;
// double click event....
} else { // If not double click....
mHasDoubleClicked = false;
Handler myHandler = new Handler() {
public void handleMessage(Message m) {
if (!mHasDoubleClicked) {
// single click event
FragmentManager fm = getFragmentManager();
FragmentTransaction fragmentTransaction = fm
.beginTransaction();
StoreDetailFragment fm2 = new StoreDetailFragment();
fragmentTransaction.replace(R.id.rela_home_fragment,
fm2, "HELLO");
fragmentTransaction.addToBackStack(null);
fragmentTransaction.commit();
Bundle bundle = new Bundle();
bundle.putString("position", str_id);
fm2.setArguments(bundle);
DBAdpter.updateItemView(itemId);
}
}
};
Message m = new Message();
myHandler.sendMessageDelayed(m, DOUBLE_PRESS_INTERVAL);
}
lastPressTime = pressTime;
return mHasDoubleClicked;
}
}
公共类HomeFragment扩展了片段{
ListView lv；
ArrayList=新建ArrayList（）；
MyListAdapter adt；
所有列出的家庭都要列出家庭；
字符串cityName；
视图根视图；
专用静态最终长双_按_间隔=250；//以毫秒为单位
私人长时间；
布尔mhas双击；
私人进展对话进展；
我的应用程序；
@凌驾
创建视图上的公共视图（布局、充气机、视图组容器、，
Bundle savedInstanceState）{
rootView=充气机。充气（R.layout.home，container，false）；
app=（MyApplication）getActivity（）.getApplicationContext（）；
lv=（ListView）rootView.findViewById（R.id.home\u ListView）；
cityName=getActivity（）.getIntent（）.getExtras（）.getString（“cityName”）
.toString（）；
如果（android.os.Build.VERSION.SDK_INT>9）{
StrictMode.ThreadPolicy policy=新建StrictMode.ThreadPolicy.Builder（）
.permitAll（）.build（）；
StrictMode.setThreadPolicy（策略）；
}
if（cityName.trim（）.equals（“”）{
Toast.makeText（getActivity（）.getApplicationContext（），
“没有可用的城市名称”，Toast.LENGTH_LONG.show（）；
}否则{
进度=新建进度对话框（getActivity（））；
progress.setMessage（“加载…”）；
新的JSONTask（progress.execute（“Home”）；
}
返回rootView；
}
公共类JSONTask扩展了异步任务{
公共JSONTask（进程对话框进程）{
进步=进步；
}
公共无效onPreExecute（）{
progress.show（）；
}
@凌驾
受保护的字符串doInBackground（字符串…arg）{
字符串listSize=“”；
Log.v（“Log_标签”，“列表DoinBaCK”）；
list=DBAdpter.getNewsData（cityName）；
Log.v（“Log_标记”，“list_大小：：”+list.size（））；
listSize=list.size（）+“”；
return listSize；//此值将返回给
//onPostExecute（结果）方法
}
@凌驾
受保护的void onPostExecute（字符串结果）{
//在这里创建您的JSONObject。。。
Log.v（“日志标签”、“张贴列表”）；
if（Integer.parseInt（结果）>0）{
adt=新的MyListAdapter（getActivity（））；
低压设置适配器（adt）；
}否则{
Toast.makeText（getActivity（）.getApplicationContext（），
“没有可用的行程数据”，Toast.LENGTH_LONG.show（）；
}
进步。解散（）；
}
//您必须在扩展的其他任务上重写此方法
//根据需要使用JSONObject
}
公共类MyListAdapter扩展了BaseAdapter{
私人停车场；
公共MyListAdapter（上下文）{
mInflater=LayoutInflater.from（上下文）；
}
public int getCount（）{
返回list.size（）；
}
公共对象getItem（int位置）{
返回位置；
}
公共长getItemId（int位置）{
返回位置；
}
公共视图getView（最终整型位置，视图转换视图，
视图组（父级）{
convertView=mInflater.充气（R.layout.custom\u home\u list，空）；
ImageButton主页\u ic\u img=（ImageButton）转换视图
.findViewById（R.id.list\u home\u logo\u image）；
ImageButton home\u big\u img=（ImageButton）转换视图
.findviewbyd（R.id.sarees\u big\u img）；
TextView主页\用户名\文本=（TextView）convertView
.findviewbyd（R.id.home\u list\u用户名）；
文本视图主视图文本=（文本视图）转换视图
.findViewById（R.id.home\u view\u txt\u view）；
TextView itemName_txt=（TextView）convertView
.findviewbyd（R.id.itemName_txt）；
按钮关闭\u btn=（按钮）转换视图
.findviewbyd（R.id.close\u home\u btn）；
home_username_txt.setText（list.get（position.store_name.toString（））；
home\u view\u txt.setText（“视图：
+list.get（position.views.toString（））；
itemName_txt.setText（list.get（position.name.toString（））；
最后一个字符串uid=app.getUserID（）；
if（list.get（position.image.toString（）.trim（）.equals）（“”）{
Log.v（“Log_标签”，“图像：”）；
home\u big\u img.setImageResource（R.drawable.ic\u启动器）；
}否则{
byte[]Image\u getByte；
试一试{
Image\u getByte=Base64.decode（list.get（position.Image））；
ByteArrayInputStream字节数=新建ByteArrayInputStream(
图像（获取字节）；
BitmapDrawable bmd=新的BitmapDrawable（字节）；
位图bm=bmd.getBitmap（）；
home\u big\u img.setImageBitmap（bm）；
}捕获（IOE异常）{
//TODO自动生成的捕捉块
e、 printStackTrace（）；
}
}
if（list.get（position.picture.toString（）.trim（）.equals）（“”）{
Log.v（“日志标签”，“图片：”）；
home_ic_img.setImageResource（R.drawable.ic_启动器）；
}否则{
字节[]图像_getByte1；
试一试{
Image_getByte1=Base64.decode（list.get（position.picture））；
ByteArrayInputStream bytes1=新的ByteArrayInputStream(
图像_getByte1）；
位图可绘制bmd1
03-20 18:26:20.819: E/AndroidRuntime(7041): FATAL EXCEPTION: main
03-20 18:26:20.819: E/AndroidRuntime(7041): java.lang.OutOfMemoryError
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.graphics.BitmapFactory.nativeDecodeStream(Native Method)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:623)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:695)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.graphics.drawable.BitmapDrawable.<init>(BitmapDrawable.java:152)
03-20 18:26:20.819: E/AndroidRuntime(7041): at com.marketplacestore.fragment.HomeFragment$MyListAdapter.getView(HomeFragment.java:207)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.widget.AbsListView.obtainView(AbsListView.java:2570)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.widget.ListView.makeAndAddView(ListView.java:1838)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.widget.ListView.fillDown(ListView.java:681)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.widget.ListView.fillGap(ListView.java:645)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.widget.AbsListView.trackMotionScroll(AbsListView.java:6464)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.widget.AbsListView.scrollIfNeeded(AbsListView.java:3642)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.widget.AbsListView.onTouchEvent(AbsListView.java:4456)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.view.View.dispatchTouchEvent(View.java:7669)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2395)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2119)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2401)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2134)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2401)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2134)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2401)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2134)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2401)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2134)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2401)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2134)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2401)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2134)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2401)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2134)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2401)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2134)
03-20 18:26:20.819: E/AndroidRuntime(7041): at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:2284)
03-20 18:26:20.819: E/AndroidRuntime(7041): at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1578)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.app.Activity.dispatchTouchEvent(Activity.java:2468)
03-20 18:26:20.819: E/AndroidRuntime(7041): at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:2232)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.view.View.dispatchPointerEvent(View.java:7876)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.view.ViewRootImpl.deliverPointerEvent(ViewRootImpl.java:3894)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:3778)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:5030)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:5009)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:5107)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:185)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.view.InputEventReceiver.nativeConsumeBatchedInputEvents(Native Method)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.view.InputEventReceiver.consumeBatchedInputEvents(InputEventReceiver.java:174)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.view.ViewRootImpl.doConsumeBatchedInput(ViewRootImpl.java:5080)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.view.ViewRootImpl$ConsumeBatchedInputRunnable.run(ViewRootImpl.java:5126)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.view.Choreographer$CallbackRecord.run(Choreographer.java:791)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.view.Choreographer.doCallbacks(Choreographer.java:591)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.view.Choreographer.doFrame(Choreographer.java:559)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:777)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.os.Handler.handleCallback(Handler.java:725)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.os.Handler.dispatchMessage(Handler.java:92)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.os.Looper.loop(Looper.java:137)
03-20 18:26:20.819: E/AndroidRuntime(7041): at android.app.ActivityThread.main(ActivityThread.java:5283)
03-20 18:26:20.819: E/AndroidRuntime(7041): at java.lang.reflect.Method.invokeNative(Native Method)
03-20 18:26:20.819: E/AndroidRuntime(7041): at java.lang.reflect.Me
Image_getByte = Base64.decode(list.get(position).image);
ByteArrayInputStream bytes = new ByteArrayInputStream(
Image_getByte);
BitmapDrawable bmd = new BitmapDrawable(bytes);
Bitmap bm = bmd.getBitmap();
/** Holder pattern to recycle your view **/
public static class ViewHolder {
public ImageButton home_ic_img;
public ImageButton home_big_img;
public TextView home_username_txt;
and so on..
}
public View getView(final int position, View convertView,
ViewGroup parent) {
if (convertView != null && convertView.getTag() instanceof ViewHolder) {
holder = (ViewHolder) convertView.getTag(); //reuse the "cached" view
} else {
convertView = mInflater.inflate(R.layout.custom_home_list, parent, false);
holder = new ViewHolder();
holder.home_ic_img = (ImageButton) convertView.findViewById(R.id.list_home_logo_image);
holder.home_big_img = convertView.findViewById(R.id.sarees_big_img);
holder.home_username_txt = (TextView) convertView .findViewById(R.id.home_list_username);
and so on..
convertView.setTag(holder); //most important thing.. it "caches" your view
}
....
return convertView;
}
}
https://code.google.com/p/android-query/downloads/detail?name=android-query.0.26.7.jar
AQuery _aq = new AQuery(youractivity context);
aq.id(R.id.Your imageview object).image("http://www.vikispot.com/z/images/vikispot/android-w.png");