Deleting Calendar event on Android

I have implemented android Calendar events with reference to this question - How to add calendar events in Android?

Below is the code I have used to add a new event to the Calendar

public void onClick(View v) { // TODO Auto-generated method stub String date = etMyTextB.getText().toString(); String time = "9:00 am"; SimpleDateFormat df = new SimpleDateFormat("dd/MM/yyyy hh:mm a"); try { Date dt = df.parse(date + " " + time); Calendar cal = Calendar.getInstance(); cal.setTimeInMillis(System.currentTimeMillis()); cal.clear(); cal.setTime(dt); Intent calIntent = new Intent(Intent.ACTION_EDIT); calIntent.setType("vnd.android.cursor.item/event"); calIntent.putExtra("beginTime", cal.getTimeInMillis()); calIntent.putExtra("allDay", true); calIntent.putExtra("endTime", cal.getTimeInMillis()+60*60*1000); calIntent.putExtra("title", "Revenue Licence Renewal Date"); startActivity(calIntent); } catch (ParseException e) { // TODO Auto-generated catch block e.printStackTrace(); }}

I haven't used Content Providers because I need support for Android 2.x.x. My question is how can I Programmitically delete the event which have added using the above code?

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Android: Searchview searches only whole words

Search is based on starting characters, but i would like that will search everything. Here is part of my code, method onTextChanged isn't right, I think.. Thanks for help!

@Overridepublic void onCreate(Bundle savedInstanceState) { final ArrayList seznamPojmov = (ArrayList) SeznamPojmovRazlag(0); final ArrayList array_sort= new ArrayList(); super.onCreate(savedInstanceState); setContentView(R.layout.activity_slovar); final ListView list = (ListView) findViewById(R.id.slovar); final EditText iskanje = (EditText) findViewById(R.id.iskanje); final ArrayAdapter a = new ArrayAdapter (Slovar.this, android.R.layout.simple_list_item_1, array_sort)); } });

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Any way to avoid "android:" statements in Android XML layout file?

Is there any way to avoid hundreds of "android:" statements in an Android XML layout file? I am new to Android and I find the "android:" statements make layouts very hard to read. Plus they are a pain to constantly type.

For example, instead of this:

android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_column="2"

I would like to just see this:

layout_width="wrap_content"layout_height="wrap_content"layout_column="2"

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What is the best way to do long running task in android?

I am new to android application development. I understand that in android, long running operations should not happen in main thread and we can use Async Task for doing the same. To do the following operations,

Download a file (> 5 MM) from server.Make a http/s call from the application.Make any call other than http (example - voice call) from the application.

is Async Task the best approach or do we have any other options in android for any of the above tasks?

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Android - Background extending instead of aligning while scrolling

I'm trying to create a chat view(sent text,received text). The background drawable(box) is properly aligned to one side. When i scroll, it extends the box to fit the whole width. Not sure why this is happening. Any ideas? The problem i'm talking aboutHow i actually want it(this is before scrolling)

My custom adapter class

public class DisplayMessageAdapter extends ArrayAdapter {Context context;int sentResource, rcvdResource;ArrayList messages = null;public DisplayMessageAdapter(Context context, int sentResource, int rcvdResource, ArrayList messages) { super(context, sentResource, rcvdResource, messages); this.context = context; this.sentResource = sentResource; this.rcvdResource = rcvdResource; this.messages = messages;}@SuppressLint("NewApi")@Overridepublic View getView(int position, View convertView, ViewGroup parent) {View row = convertView;Message message = messages.get(position);Holder holder = new Holder(); if(row == null) { LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); holder = new Holder(); row = inflater.inflate(R.layout.message_layout, parent, false); holder.content = (TextView) row.findViewById(R.id.message_content); row.setTag(holder); } else { holder = (Holder) row.getTag(); } if(message.sent != null) { RelativeLayout.LayoutParams params = (LayoutParams) holder.content.getLayoutParams(); params.setMargins(30, params.topMargin, params.rightMargin, params.bottomMargin); params.addRule(RelativeLayout.ALIGN_PARENT_RIGHT); holder.content.setLayoutParams(params); holder.content.setBackgroundResource(R.drawable.sent); holder.content.setText(message.sent); } else { RelativeLayout.LayoutParams params = (LayoutParams) holder.content.getLayoutParams(); params.setMargins(params.leftMargin, params.topMargin, 30, params.bottomMargin); params.addRule(RelativeLayout.ALIGN_PARENT_LEFT); holder.content.setLayoutParams(params); holder.content.setBackgroundResource(R.drawable.rcvd); holder.content.setText(message.received); }return row;}

My Layout file

My Drawables - rcvd/send

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Can android apk file read and write xml file and update sqllite via xml data from server?

My problem is : 1) I want apk file to read xml file from remote server 2) Once its completed, I want to enter that data into sqllite db and process it. 3) Export updated data into xml format to remote server 4) Is apk file not able to update/read data from server?

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java.lang.IllegalStateException: Cannot add header view to list Android

i have one issues in my application , am setting header view to listview dynamically but am getting below error, i have two activies , A and B according my codition am setting header view to listview when am setting hederview in A activity it work fine but when A activity false my codition and go to B activity there am my contion is ture then come to A activity i neeed to add header view there am getting Error................ i have tryied to added onStart(), onResume() methods, but still am getting same error..... how to fix it

Java code

if (mDrawerList.getHeaderViewsCount()<1) { TextView headerText = new TextView(mContext); headerText.setGravity(Gravity.CENTER); headerText.setTextColor(getResources().getColor(R.color.white_color)); headerText.setPadding(20, 12, 20, 12); headerText.setTextSize(18); headerText.setText(mSessionManager.getUserName()); mDrawerList.addHeaderView(headerText); }

Error message

2-20 15:15:34.799: E/AndroidRuntime(13111): FATAL EXCEPTION: main12-20 15:15:34.799: E/AndroidRuntime(13111): java.lang.RuntimeException: Unable to resume activity {com.examle.EventListActivity}: java.lang.IllegalStateException: Cannot add header view to list -- setAdapter has already been called.12-20 15:15:34.799: E/AndroidRuntime(13111): at android.app.ActivityThread.performResumeActivity(ActivityThread.java:2790)12-20 15:15:34.799: E/AndroidRuntime(13111): at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:2819)12-20 15:15:34.799: E/AndroidRuntime(13111): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1298)12-20 15:15:34.799: E/AndroidRuntime(13111): at android.os.Handler.dispatchMessage(Handler.java:99)12-20 15:15:34.799: E/AndroidRuntime(13111): at android.os.Looper.loop(Looper.java:137)12-20 15:15:34.799: E/AndroidRuntime(13111): at android.app.ActivityThread.main(ActivityThread.java:5103)12-20 15:15:34.799: E/AndroidRuntime(13111): at java.lang.reflect.Method.invokeNative(Native Method)12-20 15:15:34.799: E/AndroidRuntime(13111): at java.lang.reflect.Method.invoke(Method.java:525)12-20 15:15:34.799: E/AndroidRuntime(13111): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)12-20 15:15:34.799: E/AndroidRuntime(13111): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)12-20 15:15:34.799: E/AndroidRuntime(13111): at dalvik.system.NativeStart.main(Native Method)12-20 15:15:34.799: E/AndroidRuntime(13111): Caused by: java.lang.IllegalStateException: Cannot add header view to list -- setAdapter has already been called.12-20 15:15:34.799: E/AndroidRuntime(13111): at android.widget.ListView.addHeaderView(ListView.java:258)12-20 15:15:34.799: E/AndroidRuntime(13111): at android.widget.ListView.addHeaderView(ListView.java:287)

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Getting value from dynamic table in Android

This was my code for creating table and appending the data dynamically

table = (TableLayout)findViewById(R.id.table); inflater = getLayoutInflater(); for(int i = 0; i < 5; i++) { row = (TableRow)inflater.inflate(R.layout.row,table, false); TextView text = (TextView)row.findViewById(R.id.text1); text.setText("sss:" + i); text1 = (EditText)row.findViewById(R.id.text2); `enter code here` text2 = (TextView)row.findViewById(R.id.text3); text2.setText(""); text1.addTextChangedListener(new MyWatcher(text2)); table.addView(row); }

this code is working fine but my problem is when i click the button i want to get the values from each row which is to be only filledenter code here

NxtBtn.setOnClickListener(new View.OnClickListener() { public void onClick(View view) { } });

please help me out in this.

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Fix camera capture to portrait on Android

I'm developing a small camera capture program in android.

I didn't use the Intent to open the camera and show it's images. I'm using the camera directly:

if (myPreviewRunning) { myCamera.stopPreview(); myPreviewRunning = false; } Camera.Parameters parameters = myCamera.getParameters(); display = ((WindowManager) getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay(); display = getWindowManager().getDefaultDisplay(); Camera.Size optimalSize = getOptimalSize(parameters.getSupportedPreviewSizes(), width, height); parameters.setPreviewSize(optimalSize.width, optimalSize.height); if (display.getRotation() == Surface.ROTATION_0 ||display.getRotation() == Surface.ROTATION_270) { parameters.setPreviewSize(optimalSize.height, optimalSize.width); ViewGroup.LayoutParams layoutParams = mySurfaceView.getLayoutParams(); layoutParams.width = optimalSize.height; layoutParams.height = optimalSize.width; mySurfaceView.setLayoutParams(layoutParams); myCamera.setDisplayOrientation(90); } else { myCamera.setDisplayOrientation(180); mySurfaceView.getLayoutParams().width = optimalSize.width; mySurfaceView.getLayoutParams().height = optimalSize.height; } myCamera.setParameters(parameters); myCamera.setPreviewDisplay(holder); myCamera.startPreview();

Until now, with this code I'm able to rotate the camera to a 'natural' behaviour, so when I rotate the cell phone to landscape, it rotates the image and you see it in landscape. But due to some reasons, I need the captured image to remain in portrait mode, even if I put landscape.

How can I force the camera preview to remain in portrait mode?

EDIT: AndroidManifest.xml

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