R.string vs R.id in android

R.string vs R.id in android - android

I have some code that says
MainActivity.java
import android.app.Activity;
import android.graphics.Color;
import android.os.Bundle;
import android.os.Handler;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
public class MainActivity extends Activity {
TextView av; //UI reference
int textString = R.string.start;
int backgroundColor = Color.DKGRAY;
final Handler mHandler = new Handler();
// Create runnable for posting results to the UI thread
final Runnable mUpdateResults = new Runnable() {
public void run() {
av.setText(textString);
av.setBackgroundColor(backgroundColor);
}
};
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
av = (TextView) findViewById(R.id.computation_status);
Button actionButton = (Button) findViewById(R.id.action1);
actionButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
doWork();
}
});
}
//example of a computationally intensive action with UI updates
private void doWork() {
Thread thread = new Thread(new Runnable() {
public void run() {
textString=R.id.start;
backgroundColor = Color.DKGRAY;
mHandler.post(mUpdateResults);
computation(1);
textString=R.id.first;
backgroundColor = Color.BLUE;
mHandler.post(mUpdateResults);
computation(2);
textString=R.id.second;
backgroundColor = Color.GREEN;
mHandler.post(mUpdateResults);
}
});
thread.start();
}
final static int SIZE=1000; //large enough to take some time
double tmp;
private void computation(int val) {
for(int ii=0; ii<SIZE; ii++)
for(int jj=0; jj<SIZE; jj++)
tmp=val*Math.log(ii+1)/Math.log1p(jj+1);
}
}
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView android:id="#+id/computation_status"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textColor="#000" />
<TextView
android:id="#+id/start"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="start textview" />
<TextView
android:id="#+id/first"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#+string/first" />
<TextView
android:id="#+id/second"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="TextView" />
<Button
android:id="#+id/action1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button" />
</LinearLayout>
I know that if that was R.id.start then there would have to be a textview in the xml file named start. What do I do if I have R.string.start? Because making a textview doesn't work.

R.string.start is actually a reference to a string named start, not the string itself.
So, it's an int.
R.id are the ids for the views

Related

Datepicker and TimePicker dialogs take two clickes of button

So for the life of me I can not find the reason behind needing to click twice on the start date and start time for the picker dialog to open. I have searched these forums many times and they have all been mostly related to edit text fields whereas mine is a simple button but the onClickListener takes two hits. Thanks in advance.
This is my Class:
package com.shotsevolved.app
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.DialogFragment;
import android.support.v4.app.FragmentActivity;
import android.view.View;
import android.view.WindowManager;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.ProgressBar;
import android.widget.Toast;
import com.parse.FindCallback;
import com.parse.Parse;
import com.parse.ParseException;
import com.parse.ParseGeoPoint;
import com.parse.ParseObject;
import com.parse.ParseQuery;
import com.parse.SaveCallback;
import java.util.List;
public class DealCreator extends FragmentActivity {
String mUsername;
String companyName;
ParseGeoPoint location;
String title;
double mOldPrice;
double mNewPrice;
boolean isFree;
boolean isUnlimited;
String mDescription;
int mUses;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Parse.initialize(this, "Ztgl9DAaj4XPrDnS2Ro8jNHiaNnTPFCeF6V1Gm71", "26QMHWwfHmxKfwMvKemaEXH2XsFxpO5sR8Csuo9v");
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.activity_deal_creator);
final Button create = (Button)findViewById(R.id.createButton);
final ProgressBar progress = (ProgressBar)findViewById(R.id.progressIcon);
final LinearLayout view = (LinearLayout)findViewById(R.id.linView);
final LinearLayout view1 = (LinearLayout)findViewById(R.id.linView1);
final LinearLayout main = (LinearLayout)findViewById(R.id.mainLinear);
final CheckBox freeBox = (CheckBox)findViewById(R.id.freeBox);
final EditText oldPrice = (EditText)findViewById(R.id.oldPrice);
final EditText newPrice = (EditText)findViewById(R.id.newPrice);
final CheckBox unlimited = (CheckBox)findViewById(R.id.unlimitedBox);
final EditText uses = (EditText)findViewById(R.id.uses);
final Button date = (Button)findViewById(R.id.startDate);
final Button time = (Button)findViewById(R.id.startTime);
create.setVisibility(View.INVISIBLE);
Intent intent = getIntent();
mUsername = intent.getStringExtra("key");
ParseQuery<ParseObject> query = ParseQuery.getQuery("appUsers");
query.whereEqualTo("username", mUsername);
query.findInBackground(new FindCallback<ParseObject>() {
public void done(List<ParseObject> user, ParseException e) {
if(user.size() == 1 && e == null){
int admin = user.get(0).getInt("admin");
if(admin == 2){
ParseQuery<ParseObject> query = ParseQuery.getQuery("AdminNames");
query.whereEqualTo("username", mUsername);
query.findInBackground(new FindCallback<ParseObject>() {
#Override
public void done(final List<ParseObject> user, ParseException e) {
if(user.size() == 1 && e == null){
unlimited.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
#Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if(isChecked == true){
uses.setVisibility(View.INVISIBLE);
view1.removeView(uses);
}else{
uses.setVisibility(View.VISIBLE);
view1.addView(uses);
}
}
});
freeBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
#Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if(isChecked == true){
oldPrice.setVisibility(View.INVISIBLE);
newPrice.setVisibility(View.INVISIBLE);
view.removeView(oldPrice);
view.removeView(newPrice);
}else{
oldPrice.setVisibility(View.VISIBLE);
newPrice.setVisibility(View.VISIBLE);
view.addView(oldPrice);
view.addView(newPrice);
}
}
});
date.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
showDatePickerDialog(main);
}
});
time.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
showTimePickerDialog(main);
}
});
progress.setVisibility(View.GONE);
view.removeView(progress);
create.setVisibility(View.VISIBLE);
create.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if(freeBox.isChecked()){
isFree = true;
mOldPrice = 0;
mNewPrice = 0;
}else{
mOldPrice = Double.parseDouble(oldPrice.getText().toString());
mNewPrice = Double.parseDouble(newPrice.getText().toString());
isFree = false;
}
if(unlimited.isChecked()){
isUnlimited = true;
mUses = 0;
}else{
mUses = Integer.parseInt(uses.getText().toString());
isUnlimited = false;
}
//Call create deal class
deal();
}
});
}else{
Context context = getApplicationContext();
CharSequence text = "Error!!! Database Hacked!";
int duration = Toast.LENGTH_LONG;
Toast toast = Toast.makeText(context, text, duration);
toast.show();
}
}
});
}else{
Context context = getApplicationContext();
CharSequence text = "Error!!! You are not an Admin!";
int duration = Toast.LENGTH_LONG;
Toast toast = Toast.makeText(context, text, duration);
toast.show();
}
}else{
Context context = getApplicationContext();
CharSequence text = "Error!!! Database Hacked!";
int duration = Toast.LENGTH_LONG;
Toast toast = Toast.makeText(context, text, duration);
toast.show();
}
}
});
}
private void deal() {
ParseObject newDeal = new ParseObject("Deals");
newDeal.put("uses", mUses);
newDeal.put("unlimitedUses", isUnlimited);
newDeal.put("description", mDescription);
newDeal.put("free", isFree);
newDeal.put("title", title);
newDeal.put("oldPrice", mOldPrice);
newDeal.put("newPrice", mNewPrice);
newDeal.put("location", location);
newDeal.put("username", mUsername);
newDeal.put("companyName", companyName);
newDeal.saveInBackground(new SaveCallback() {
#Override
public void done(ParseException e) {
Context context = getApplicationContext();
CharSequence text = "Deal Saved";
int duration = Toast.LENGTH_SHORT;
Toast toast = Toast.makeText(context, text, duration);
toast.show();
}
});
}
public void showTimePickerDialog(View v) {
DialogFragment newFragment = new TimePickerFragment();
newFragment.show(getSupportFragmentManager(), "timePicker");
}
public void showDatePickerDialog(View v) {
DialogFragment newFragment = new DatePickerFragment();
newFragment.show(getSupportFragmentManager(), "datePicker");
}
}
And these are my Fragments:
Date:
package com.shotsevolved.app;
import android.app.DatePickerDialog;
import android.app.Dialog;
import android.os.Bundle;
import android.support.v4.app.DialogFragment;
import android.widget.DatePicker;
import java.util.Calendar;
public class DatePickerFragment extends DialogFragment
implements DatePickerDialog.OnDateSetListener {
#Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
// Use the current date as the default date in the picker
final Calendar c = Calendar.getInstance();
int year = c.get(Calendar.YEAR);
int month = c.get(Calendar.MONTH);
int day = c.get(Calendar.DAY_OF_MONTH);
// Create a new instance of DatePickerDialog and return it
return new DatePickerDialog(getActivity(), this, year, month, day);
}
public void onDateSet(DatePicker view, int year, int month, int day) {
// Do something with the date chosen by the user
}
}
Time:
package com.shotsevolved.app;
import android.app.Dialog;
import android.app.TimePickerDialog;
import android.os.Bundle;
import android.support.v4.app.DialogFragment;
import android.text.format.DateFormat;
import android.widget.TimePicker;
import java.util.Calendar;
public class TimePickerFragment extends DialogFragment
implements TimePickerDialog.OnTimeSetListener {
#Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
// Use the current time as the default values for the picker
final Calendar c = Calendar.getInstance();
int hour = c.get(Calendar.HOUR_OF_DAY);
int minute = c.get(Calendar.MINUTE);
// Create a new instance of TimePickerDialog and return it
return new TimePickerDialog(getActivity(), this, hour, minute,
DateFormat.is24HourFormat(getActivity()));
}
public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
// Do something with the time chosen by the user
}
}
And finally my XML:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:background="#1e1c1c"
android:id="#+id/root"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="#dimen/height"
android:layout_alignParentTop="true"
android:background="#color/purple"
xmlns:android="http://schemas.android.com/apk/res/android">
<LinearLayout
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<ImageButton
android:id="#+id/btn_backFromSettings"
android:layout_width="#dimen/width"
android:layout_height="fill_parent"
android:background="#drawable/ui_button_purple"
android:contentDescription="#string/desc"
android:src="#drawable/ico_left" />
<LinearLayout
android:layout_width="#dimen/divider_size"
android:layout_height="fill_parent"
android:background="#color/dark_purple" >
</LinearLayout>
<TextView
android:id="#+id/mainLogin"
android:layout_width="0dip"
android:layout_height="fill_parent"
android:layout_weight="1"
android:gravity="center"
android:tag="bold"
android:text="#string/dealCreator"
android:textColor="#color/white"
android:textSize="#dimen/tex_size_xxlarge" />
<LinearLayout
android:layout_width="#dimen/divider_size"
android:layout_height="fill_parent"
android:background="#color/dark_purple" >
</LinearLayout>
</LinearLayout>
</LinearLayout>
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:id="#+id/mainLinear">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:padding="#dimen/dim_20"
android:id="#+id/linView">
<ProgressBar
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/progressIcon"
android:layout_gravity="center_horizontal" />
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/titleOfDeal"
style="#style/EditText_Purple"
android:hint="Title of Deal"
android:layout_gravity="center_horizontal" />
<EditText
android:layout_width="match_parent"
android:layout_height="200dp"
android:id="#+id/dealDescription"
android:gravity="top"
android:layout_marginTop="#dimen/dim_10"
style="#style/EditText_Purple"
android:hint="Describe company and deal"
android:layout_gravity="center_horizontal" />
<CheckBox
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Free"
android:layout_marginTop="#dimen/dim_10"
style="#style/CheckBox_Purple"
android:textColor="#color/offwhite"
android:id="#+id/freeBox" />
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/oldPrice"
android:layout_marginTop="#dimen/dim_10"
style="#style/EditText_Purple"
android:hint="Old cost of product"
android:inputType="numberDecimal"
android:layout_gravity="center_horizontal" />
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/newPrice"
android:layout_marginTop="#dimen/dim_10"
android:inputType="numberDecimal"
style="#style/EditText_Purple"
android:hint="New cost of product"
android:layout_gravity="center_horizontal" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:id="#+id/linView1"
android:paddingRight="#dimen/dim_20"
android:paddingLeft="#dimen/dim_20">
<CheckBox
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Unlimited uses"
style="#style/CheckBox_Purple"
android:textColor="#color/offwhite"
android:id="#+id/unlimitedBox" />
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/uses"
android:layout_marginTop="#dimen/dim_10"
style="#style/EditText_Purple"
android:hint="Number of uses per customer"
android:inputType="number"
android:layout_gravity="center_horizontal" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:id="#+id/linView2"
android:gravity="center_horizontal"
android:layout_marginTop="#dimen/dim_10"
android:paddingRight="#dimen/dim_20"
android:paddingLeft="#dimen/dim_20">
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/startDate"
android:layout_marginTop="#dimen/dim_10"
style="#style/EditText_Purple"
android:hint="Start Date"
android:layout_marginRight="#dimen/dim_10"
android:layout_gravity="center_horizontal" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/startTime"
android:layout_marginTop="#dimen/dim_10"
style="#style/EditText_Purple"
android:hint="Start Time"
android:layout_gravity="center_horizontal" />
</LinearLayout>
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical">
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:layout_marginTop="#dimen/dim_10"
android:gravity="center_horizontal">
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Set expiry date"
android:layout_marginRight="#dimen/dim_10"
android:padding="#dimen/dim_10"
style="#style/Button_Purple"
android:id="#+id/dateButtonEnd"
android:layout_gravity="center_horizontal" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Set expiry time"
android:padding="#dimen/dim_10"
style="#style/Button_Purple"
android:id="#+id/timeButtonEnd"
android:layout_gravity="center_horizontal" />
</LinearLayout>
</LinearLayout>
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Create"
android:padding="#dimen/dim_10"
android:layout_marginTop="#dimen/dim_10"
android:layout_marginLeft="#dimen/dim_20"
android:layout_marginRight="#dimen/dim_20"
style="#style/Button_Purple"
android:id="#+id/createButton"
android:layout_gravity="center_horizontal" />
</LinearLayout>
</ScrollView>
</LinearLayout>

Hmm, your code looks ok. Can you try adding android:focusable="false" to your buttons. I'm curious if the problem is that you're just requesting focus the first click and the second actually initiates the click.
Also, if this doesn't help, can you put some logs in your click listener and also in the public void showTimePickerDialog(View v) { method as well ... to see if it's triggered the first click at all.

Try to add delay on button click it will avoid multi click
date.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
date.setEnabled(false);
showDatePickerDialog(main);
new Handler().postDelayed(new Runnable() {
#Override
public void run() {
date.setEnabled(true);
}
}, 100);
}
});

how to get the timer counted value in Android?

How to create an android mobile application that will do a counting in miliseconds (start from 0), and ask user to type"I Like to eat" in EditText and click submit. After user click submit, counting will stop and a dialog box will appear and show the counting result.
package com.example.labex4;
import java.util.Timer;
import java.util.TimerTask;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
public class MainActivity extends Activity implements OnClickListener {
TextView textView1,textView2,textView3,textView4,displayValue;
EditText nameTxt;
Button button1;
int count = 0;
Timer T;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
T=new Timer();
T.scheduleAtFixedRate(new TimerTask() {
#Override
public void run() {
runOnUiThread(new Runnable()
{
#Override
public void run()
{
displayValue.setText("count="+count);
count++;
}
});
}
}, 0, 1);
textView1 = (TextView)findViewById(R.id.textView1);
textView2 = (TextView)findViewById(R.id.textView2);
textView3 = (TextView)findViewById(R.id.textView3);
textView4 = (TextView)findViewById(R.id.textView4);
displayValue = (TextView)findViewById(R.id.displayValue);
nameTxt = (EditText)findViewById(R.id.nameTxt);
button1 = (Button)findViewById(R.id.button1);
button1.setOnClickListener(this);
}
#Override
public void onClick(View v) {
T.cancel();
dialog.editext.setText(""+count);
}
}
***Here is The XML file***
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="${relativePackage}.${activityClass}" >
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:text="(Type Faster)"
android:textAppearance="?android:attr/textAppearanceLarge" />
<TextView
android:id="#+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/textView1"
android:layout_below="#+id/textView1"
android:layout_marginTop="25dp"
android:text="Miliseconds: " />
<TextView
android:id="#+id/displayValue"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="#+id/textView2"
android:layout_toRightOf="#+id/textView2"
android:text="displayvalue" />
<TextView
android:id="#+id/textView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/textView2"
android:layout_centerHorizontal="true"
android:layout_marginTop="26dp"
android:text="Type this words: " />
<TextView
android:id="#+id/textView4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/textView3"
android:layout_centerHorizontal="true"
android:layout_marginTop="17dp"
android:text="Frankie Jones Anak Saing"
android:textAppearance="?android:attr/textAppearanceMedium" />
<EditText
android:id="#+id/nameTxt"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_below="#+id/textView4"
android:layout_marginTop="38dp"
android:ems="10" />
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/nameTxt"
android:layout_centerHorizontal="true"
android:layout_marginTop="37dp"
android:text="Check" />
</RelativeLayout>

Global Variable
int count = 0;
Timer T;
Put the below code in onCreate after setContentView
T=new Timer();
T.scheduleAtFixedRate(new TimerTask() {
#Override
public void run() {
runOnUiThread(new Runnable()
{
#Override
public void run()
{
//myTextView.setText("count="+count);
count++;
}
});
}
}, 0, 1);
At Button OnCLick
UPDATE
T.cancel();
//Open popup or dialog or alert as per your choice and print the count value
//dialog.editext.setText(""+count);
AlertDialog alertDialog = new AlertDialog.Builder(<YourActivityName>this).create(); //Read Update
alertDialog.setTitle("You total time count");
alertDialog.setMessage(String.valueof(count));
alertDialog.setButton("OK", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
// here you can add functions
alertDialog.dismiss();
}
});
alertDialog.show(); //<-- See This!
}
As Per Your Requirement I am pasting the whole class
import android.app.Activity;
import android.app.Dialog;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import java.util.Timer;
import java.util.TimerTask;
public class MainActivity extends Activity implements OnClickListener {
TextView textView1,textView2,textView3,textView4,displayValue;
EditText nameTxt;
Button button1;
int count = 0;
Timer T;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
T=new Timer();
T.scheduleAtFixedRate(new TimerTask() {
#Override
public void run() {
runOnUiThread(new Runnable()
{
#Override
public void run()
{
displayValue.setText("count="+count);
count++;
}
});
}
}, 0, 1);
textView1 = (TextView)findViewById(R.id.textView1);
textView2 = (TextView)findViewById(R.id.textView2);
textView3 = (TextView)findViewById(R.id.textView3);
textView4 = (TextView)findViewById(R.id.textView4);
displayValue = (TextView)findViewById(R.id.displayValue);
nameTxt = (EditText)findViewById(R.id.nameTxt);
button1 = (Button)findViewById(R.id.button1);
button1.setOnClickListener(this);
}
#Override
public void onClick(View v) {
T.cancel();
//Open popup or dialog or alert as per your choice and print the count value
//dialog.editext.setText(""+count);
final Dialog dialog = new Dialog(MainActivity.this);
dialog.setContentView(R.layout.custom_popup);
dialog.setTitle("Typing Result!");
// set the custom dialog components - text, image and button
TextView titletext = (TextView) dialog.findViewById(R.id.titletext);
//titletext.setText("Typing Result!");
titletext.setVisibility(View.GONE);
TextView text = (TextView) dialog.findViewById(R.id.text);
text.setText("Frankie Jones Igat, Your Typing Speed "+String.valueOf(count)+" miliseconds");
Button dialogButtonOK = (Button) dialog.findViewById(R.id.dialogButtonOK);
// if button is clicked, close the custom dialog
dialogButtonOK.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
dialog.dismiss();
}
});
dialog.show();
}
}
And Custom pop up layout in layout folder custom_popup.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#999999"
android:layout_marginTop="10dp">
<TextView
android:id="#+id/titletext"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:text="title"
android:textSize="18sp"
android:textColor="#android:color/black"/>
<TextView
android:id="#+id/text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/titletext"
android:layout_marginTop="5dp"
android:textSize="16sp"
android:text="titlekiefsjisejefsjeaij"
android:textColor="#android:color/black"
android:layout_centerHorizontal="true"
/>
<Button
android:id="#+id/dialogButtonOK"
android:layout_width="80dp"
android:layout_height="40dp"
android:text=" Ok "
android:layout_marginTop="10dp"
android:layout_marginRight="5dp"
android:layout_below="#+id/text"
android:textSize="18sp"
android:textColor="#android:color/black"
android:layout_centerHorizontal="true"
android:gravity="center"
android:background="#FF0000"
android:layout_marginBottom="10dp"
/>
</RelativeLayout>

show EditText on condition

Right now I have an idea for a project and I would like to know if anyone can help me on the same logic.
As such I need to create or generate a number of EditText according to amount you enter, ie, to select or enter a number such as 5, show me 5 EditText layout for type 5 values. They know that the form could accomplish this? Any ideas please?
I guess it must be a way to do it with a loop, but not like carrying this calculation Java to XML. Thank you.

Here is an example of generating EditText items based on the number you enter. You can ignore the scrollview in the layout file I just put it in case someone added a lot of EditText items that would go off the screen.
MainActivity.java
package com.example.test;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.LinearLayout.LayoutParams;
import android.widget.TextView;
public class MainActivity extends Activity {
public static final String TAG = MainActivity.class.getSimpleName();
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final EditText count = (EditText) findViewById(R.id.count);
final TextView output = (TextView) findViewById(R.id.output);
final Button generate = (Button) findViewById(R.id.generate);
final Button values = (Button) findViewById(R.id.values);
final LinearLayout container = (LinearLayout) findViewById(R.id.container);
generate.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
int numberOfControlsToGenerate = 0;
try {
numberOfControlsToGenerate = Integer.parseInt(count.getText().toString().trim());
} catch (NumberFormatException e) {
Log.e(TAG, e.getMessage(), e);
}
if (numberOfControlsToGenerate > 0) {
if (container.getChildCount() > 0) {
container.removeAllViews();
}
for (int counter = 0; counter < numberOfControlsToGenerate; counter++) {
addEditText(container);
}
}
}
});
values.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
String[] editTextValues = new String[container.getChildCount()];
StringBuilder editTextValuesBuilder = new StringBuilder();
for (int counter = 0; counter < container.getChildCount(); counter++) {
EditText child = (EditText) container.getChildAt(counter);
editTextValues[counter] = child.getText().toString().trim();
editTextValuesBuilder.append(editTextValues[counter]).append("\n");
}
output.setText(editTextValuesBuilder.toString());
}
});
}
private void addEditText(LinearLayout container) {
final LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT);
EditText editTextToAdd = new EditText(this);
editTextToAdd.setLayoutParams(params);
container.addView(editTextToAdd);
}
}
activity_main.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center_horizontal"
android:orientation="vertical"
android:padding="16dp"
tools:context="${packageName}.${activityClass}" >
<EditText
android:id="#+id/count"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:imeOptions="actionDone"
android:inputType="number"
android:textSize="20sp" />
<Button
android:id="#+id/generate"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Go" />
<Button
android:id="#+id/values"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Get Values" />
<TextView
android:id="#+id/output"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent" >
<LinearLayout
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
</LinearLayout>
</ScrollView>
</LinearLayout>

How to set a TextView from an ArrayList, character by character, sequentially?

I want to put a text in a TextView sequentially, with a known time between characters, from a written text in an EditText
That is the solution I made:
I wrote two ArrayList charged from an EditText, the first one with Characters from the EditText , the second one with Integers for determine the time between characters.
Then I parse the ArrayLists, times load of the time integers are done sequentially, but not the characters, the TextViews are drawn only when the cycle ends.
My code
The MainActivity:
import java.util.ArrayList;
import android.os.Bundle;
import android.app.Activity;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
public class MainActivity extends Activity {
private TextView showCharacter;
private TextView showAppendCharacter;
private EditText incomingText;
private Button readTextEdit;
private ArrayList<CharSequence> toText = new ArrayList<CharSequence>();
private ArrayList<Integer> timePlay = new ArrayList<Integer>();
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
showCharacter = (TextView) findViewById(R.id.showCharacterTextView);
showAppendCharacter = (TextView) findViewById(R.id.showAppendCharacterTextView);
incomingText = (EditText) findViewById(R.id.incomingEditText);
readTextEdit = (Button) findViewById(R.id.readTextButton);
readTextEdit.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
toText.clear();
timePlay.clear();
showAppendCharacter.setText("");
String text = incomingText.getText().toString();
for (int base = 0; base < text.length(); base++) {
if (String.valueOf(text.charAt(base)).equals("a")) {
toText.add(("a"));
timePlay.add(500);
} else if (String.valueOf(text.charAt(base)).equals("b")) {
toText.add(("b"));
timePlay.add(650);
} else if (String.valueOf(text.charAt(base)).equals("c")) {
toText.add(("c"));
timePlay.add(800);
} else {
toText.add(("_"));
timePlay.add(1000);
}
}
for (int pos = 0; pos < toText.size(); pos++) {
try {
Thread.sleep(timePlay.get(pos));
showCharacter.setText((String) toText.get(pos));
showAppendCharacter.append((String) toText.get(pos));
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
});
}
}
The activity_main.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/LinearLayout1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".MainActivity" >
<TextView
android:id="#+id/showCharacterTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/showCharacterTextView"
android:textAppearance="?android:attr/textAppearanceLarge" />
<TextView
android:id="#+id/showAppendCharacterTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/showAppendCharactersTextView"
android:textAppearance="?android:attr/textAppearanceLarge" />
<EditText
android:id="#+id/incomingEditText"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="10"
android:hint="#string/incomingTextEditText"
android:inputType="text" >
<requestFocus />
</EditText>
<Button
android:id="#+id/readTextButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/readButton" />
The strings.xml:
<?xml version="1.0" encoding="utf-8"?>
<string name="app_name">texto Desde ArrayList</string>
<string name="action_settings">Settings</string>
<string name="showCharacterTextView">Show last Character</string>
<string name="showAppendCharactersTextView">Show append Characters</string>
<string name="incomingTextEditText">Incoming text</string>
<string name="readButton">Read text</string>

Try something like this... You can get rid of the Arraylists. Remember a String is basically an array of chars. create a custom text view that implements runnable so the work that your trying to do with the text is not done on the main thread.
package com.example.stackquestion;
import java.util.ArrayList;
import android.content.Context;
import android.graphics.Color;
import android.os.SystemClock;
import android.util.AttributeSet;
import android.widget.TextView;
public class CustomTextView extends TextView implements Runnable {
String text = null;
int i = 0;
int length = 0;
String currentText = "";
public CustomTextView(Context context, AttributeSet attrs) {
super(context, attrs);
reset();
}
#Override
public void run() {
if (i < length) {
currentText = currentText + text.charAt(i);
setText(currentText);
if (text.charAt(i) == 'a') {
postDelayed(this, 500);
} else if (text.charAt(i) == 'b') {
postDelayed(this, 650);
} else if (text.charAt(i) == 'c') {
postDelayed(this, 800);
} else if (text.charAt(i) == '_') {
postDelayed(this, 1000);
} else
postDelayed(this, 1);
i++;
}
}
public void setString(String text) {
this.text = text;
this.length = text.length();
}
public void reset() {
currentText = "";
text = null;
i = 0;
setText("");
}
}
Here is the main Activity
package com.example.stackquestion;
import java.util.ArrayList;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
public class MainActivity extends Activity {
private TextView showCharacter;
private CustomTextView showAppendCharacter;
private EditText incomingText;
private Button readTextEdit;
private ArrayList<CharSequence> toText = new ArrayList<CharSequence>();
private ArrayList<Integer> timePlay = new ArrayList<Integer>();
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
showCharacter = (TextView) findViewById(R.id.showCharacterTextView);
showAppendCharacter = (CustomTextView) findViewById(R.id.showAppendCharacterTextView);
incomingText = (EditText) findViewById(R.id.incomingEditText);
readTextEdit = (Button) findViewById(R.id.readTextButton);
readTextEdit.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
if (v.getId() == R.id.readTextButton)
showAppendCharacter.reset();
showAppendCharacter
.setString(incomingText.getText().toString());
showAppendCharacter.run();
}
});
}
}
woops. I forgot to give you the Layout. But looks like you got it. Just change the type of textview to a fully qualified CustomTextView. Here was mine.
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/LinearLayout1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".MainActivity" >
<TextView
android:id="#+id/showCharacterTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/showCharacterTextView"
android:textAppearance="?android:attr/textAppearanceLarge" />
<com.example.stackquestion.CustomTextView
android:id="#+id/showAppendCharacterTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/showAppendCharactersTextView"
android:textAppearance="?android:attr/textAppearanceLarge" />
<EditText
android:id="#+id/incomingEditText"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="10"
android:hint="#string/incomingTextEditText"
android:inputType="text" >
<requestFocus />
</EditText>
<Button
android:id="#+id/readTextButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/readButton" />
</LinearLayout>

How to fit my design to all devices?

Hi I am developing a app in which alphabets are not fitting for every device. For HCL ME tablet my design won't fit. For samsung it is working. MY XML file is:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="2" android:orientation="vertical">
<LinearLayout android:id="#+id/linearLayout1" android:layout_height="match_parent"
android:orientation="horizontal" android:layout_width="match_parent"
android:layout_weight="1">
<LinearLayout android:id="#+id/linearLayout1" android:layout_height="match_parent"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_weight="1">
<TextView android:id="#+id/letter1" android:gravity="center" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_weight="1"></TextView>
<TextView android:id="#+id/letter2" android:gravity="center" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_margin="10dip"></TextView>
<TextView android:id="#+id/letter3" android:gravity="center" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_margin="10dip"></TextView>
</LinearLayout>
<LinearLayout android:id="#+id/linearLayout1" android:layout_height="match_parent"
android:gravity="center"
android:orientation="horizontal" android:layout_width="match_parent"
android:layout_weight="1">
<ImageView android:id="#+id/imag"
android:gravity="center"
android:scaleType = "fitCenter"
android:layout_height="fill_parent"
android:layout_width="fill_parent"
android:layout_gravity="center">
</ImageView>
</LinearLayout>
</LinearLayout>
<LinearLayout android:layout_gravity="bottom"
android:id="#+id/linearLayout2"
android:layout_height="wrap_content" android:orientation="horizontal" android:layout_width="match_parent">
<Button android:id="#+id/previous" android:layout_width="wrap_content" android:layout_weight="1" android:text="Previous" android:layout_height="wrap_content" ></Button>
<Button android:id="#+id/practice" android:layout_width="wrap_content" android:layout_weight="1" android:text="Practice" android:layout_height="wrap_content" android:onClick="onClick"></Button>
<Button android:id="#+id/home" android:layout_width="wrap_content" android:layout_weight="1" android:text="Home" android:layout_height="wrap_content"></Button>
<Button android:id="#+id/spell" android:layout_width="wrap_content" android:layout_weight="1" android:text="Spell" android:layout_height="wrap_content" android:onClick="Content"></Button>
<Button android:id="#+id/next" android:layout_width="wrap_content" android:layout_weight="1" android:text="Next" android:layout_height="wrap_content" android:onClick="Content"></Button>
</LinearLayout>
</LinearLayout>
and my java file is:
package com.android;
import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Typeface;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
import com.android.SimpleGestureFilter.SimpleGestureListener;
public class MyAcivity extends Activity implements SimpleGestureListener {
private SimpleGestureFilter detector;
private static int counter=-1;
private String[] mBtn1 ={"C","D","E","F","G","H","IÄ","J","K","L","M","N","O","CA","CB"};
private TextView txtLetter;
private ImageView imgLetter;
private int[] imgArr={R.drawable.w1,R.drawable.w2,R.drawable.w3,R.drawable.w4,R.drawable.w5,R.drawable.w6,R.drawable.w7,R.drawable.w8,R.drawable.w9,R.drawable.w10,R.drawable.w11,R.drawable.w12,
R.drawable.w13,R.drawable.w14,R.drawable.w15};
private TextView txtKannada;
private String[] mBtn2 = {"CgÀ¸À","DªÉÄ","E°","F±À","GqÀ","Hl","IÄ¶","J¯É","Kr","LzÀÄ","M¯É","N¯É","OµÀzsÀ",
"CAUÀr","CB"};
private String[] mBtn3 = {"ARASA","AME","ILI","ISA","UDA","UTA","RUSHI","ELE","EDI","AIDU","oLE","OLE","AUSHADA",
"ANGADI","AHA"};
private TextView txtEnglish;
private int[] mAudio = {R.raw.a,R.raw.b,R.raw.c,R.raw.d,R.raw.e,R.raw.f,R.raw.g,R.raw.h,R.raw.i,R.raw.j,
R.raw.k,R.raw.l,R.raw.m,R.raw.n,R.raw.o};
protected MediaPlayer mp;
#Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.content);
detector = new SimpleGestureFilter(this,this);
if(counter == -1)
counter =getIntent().getExtras().getInt("POSITION");
Typeface tf = Typeface.createFromAsset(getBaseContext().getAssets(), "fonts/brhknd.ttf");
txtLetter = (TextView)findViewById(R.id.letter1);
txtKannada = (TextView)findViewById(R.id.letter2);
txtEnglish = (TextView)findViewById(R.id.letter3);
imgLetter = (ImageView)findViewById(R.id.imag);
txtLetter.setTypeface(tf);
txtLetter.setText(mBtn1[counter]);
txtLetter.setTextSize(350);
txtKannada.setTypeface(tf);
txtKannada.setText(mBtn2[counter]);
txtKannada.setTextSize(100);
txtEnglish.setText(mBtn3[counter]);
txtEnglish.setTextSize(50);
Button btnNext = (Button)findViewById(R.id.next);
btnNext.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
if(counter<imgArr.length-1)
counter++;
changeContent();
}
});
Button mPlay = (Button)findViewById(R.id.spell);
mPlay.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
mp = MediaPlayer.create(MySwara.this, mAudio[counter]);
mp.start();
}
});
Button btnPrvs = (Button)findViewById(R.id.previous);
btnPrvs.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
if(counter>0)
counter--;
changeContent();
}
});
Button btnPractice = (Button)findViewById(R.id.practice);
btnPractice.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = new Intent(MySwara.this,DrawingActivity.class);
startActivity(intent);
}
});
Button btnHome = (Button)findViewById(R.id.home);
btnHome.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = new Intent(MySwara.this,mainClass.class);
startActivity(intent);
}
});
}
public void changeContent()
{
txtLetter.setText(mBtn1[counter]);
txtKannada.setText(mBtn2[counter]);
txtEnglish.setText(mBtn3[counter]);
//imgLetter.setBackgroundResource(imgArr[counter]);
Bitmap bm = BitmapFactory.decodeResource(getResources(), imgArr[counter]);
imgLetter.setImageBitmap(bm);
}
#Override
public boolean dispatchTouchEvent(MotionEvent me){
this.detector.onTouchEvent(me);
return super.dispatchTouchEvent(me);
}
#Override
public void onSwipe(int direction) {
String str = "";
switch (direction) {
case SimpleGestureFilter.SWIPE_RIGHT : str = "Swipe Right";
if(counter>0)
counter--;
changeContent();
break;
case SimpleGestureFilter.SWIPE_LEFT : str = "Swipe Left";
if(counter<imgArr.length-1)
counter++;
changeContent();
break;
}
}
}
How i can fit to all devices. Can anyone help?? Thanks in advance.

There are couple of possibilities:
use different xml files for different sizes of screen -> check here http://developer.android.com/guide/practices/screens_support.html
you may use scrollview -> http://developer.android.com/reference/android/widget/ScrollView.html
or simply make your layout fit to the smallest screen size you like to support and then just have "a little" unused space on the larger screens.
It really depends on what you need. Probably the most compatible and advanced solution would be 1.
BUT be aware of the fact that EVERY change on the screen layout has to be duplicated for each xml file following this route!

create xml for each device separately. follow this
second way:
create a parent LinearLayout and pass it to the following method
public static boolean isTabletPC(Context context) {
Display display = ((WindowManager) context
.getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay();
if (display.getWidth() >= 1200) {
isTabletPC = true;
return isTabletPC;
} else {
isTabletPC = false;
return isTabletPC;
}
}
public static void fixUiDeviceDependencies(
Activity act, LinearLayout llParent) {
if (Utilities.isTabletPC(act)) {
Display display = ((WindowManager) act
.getSystemService(Context.WINDOW_SERVICE))
.getDefaultDisplay();
LayoutParams params = (LayoutParams) llParent
.getLayoutParams();
params.width = display.getWidth() / 2;
llParent.setLayoutParams(params);
}
}

Develop Reference

The Android operating system is a mobile operating system that was developed by Google (GOOGL?) to be primarily used for touchscreen devices, cell phones, and tablets.

R.string vs R.id in android - android

R.string.start is actually a reference to a string named start, not the string itself. So, it's an int. R.id are the ids for the views

Related

Datepicker and TimePicker dialogs take two clickes of button

how to get the timer counted value in Android?

show EditText on condition

How to set a TextView from an ArrayList, character by character, sequentially?

How to fit my design to all devices?

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