File open read to StringBuilder close Java example
BufferedReader , FileReader, StringBuilder , readLine, close Java example
Android example
Java example
Android example
String MYFILE = "my_file";
FileInputStream fis = openFileInput(MYFILE);
int c; String sText = "";
while((c=fis.read())!=-1)
{
sText += (char)c; // convert int to char
}
fis.close();
Java example
try {
BufferedReader in = new BufferedReader(new FileReader("myfile.txt"));
StringBuilder strBuilder = new StringBuilder();
String str;
while ((str = in.readLine()) != null) {
strBuilder.append(str);
}
in.close();
} catch (IOException e) {
e.toString();
}
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Další témata ....(Topics)
Calendar dateOfYourBirth = new GregorianCalendar(1998, Calendar.SEPTEMBER, 17); Calendar today = Calendar.getInstance(); Android example.
public class HoriziontalScrollActivity extends Activity {
TextView txtV;
Context cntx;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
txtV = (TextView)findViewById(R.id.idLabel);
cntx = this;
StringBuilder strBuild = new StringBuilder();
// enter your date of birth
Calendar dateOfYourBirth = new GregorianCalendar(1998, Calendar.SEPTEMBER, 17);
Calendar today = Calendar.getInstance();
int yourAge = today.get(Calendar.YEAR) - dateOfYourBirth.get(Calendar.YEAR);
dateOfYourBirth.add(Calendar.YEAR, yourAge);
if (today.before(dateOfYourBirth)) {
yourAge--;
}
strBuild.append("You are " + yourAge + " old!");
txtV.setText(strBuild);
}
}
- create new folder with values in resources folder in project with extension your language code
For example:
My language is Czech (cs)
I have to create the folder values-cs in res folder
Into every values folder put strings.xml file
Translate every string from values folder into your locale.
If user selected your locale in device settings, application selects a string from the correct (proper) folder.
For example:
My language is Czech (cs)
I have to create the folder values-cs in res folder
// for locale English is default
/MyProject/res/values
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="app_name">App English default</string>
<string name="action_settings">Settings English default</string>
<string name="hello_world">Hello world</string>
</resources>
// for locale Czech (cs)
/MyProject/res/values-cs
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="app_name">Aplikace česky cs</string>
<string name="action_settings">Nastavení česky</string>
<string name="hello_world">Ahoj světe!</string>
</resources>
// for locale English US (r is region)
/MyProject/res/values-en-rUS
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="app_name">App English Us locale</string>
<string name="action_settings">Settings English Us locale</string>
<string name="hello_world">Hello world from USA :)</string>
</resources>
Into every values folder put strings.xml file
Translate every string from values folder into your locale.
If user selected your locale in device settings, application selects a string from the correct (proper) folder.
SeekBar setOnSeekBarChangeListener Example. Change TextView font size by SeekBar Example.
TextView mTextView01 = (TextView)findViewById(R.id.textView01);
SeekBar mSeekBarTexSize = (SeekBar)findViewById(R.id.seekBarTextSize);
mSeekBarTexSize.setMax(100);
mSeekBarTexSize.setProgress(25);
mSeekBarTexSize.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
public void onProgressChanged(SeekBar seekBar, int progress,
boolean fromUser) {
mTextView01.setTextSize((float)progress);
}
public void onStartTrackingTouch(SeekBar seekBar) {}
public void onStopTrackingTouch(SeekBar seekBar) {}
});
Google Android button example source code for developers.
// get handle
Button myButton;
myButton = (Button)findViewById(R.id.idMyButton);
//set focus
myButton.requestFocus();
// set background image
myButton.setBackgroundResource(R.drawable.backImage);
// or
myButton.setBackgroundDrawable(getResources().getDrawable( R.drawable.someImage));
// set visibility
myButton.setVisibility(View.INVISIBLE); // VISIBLE
///////// SET LISTENER
Button myButton =(Button)findViewById(R.id.button1);
myButton.setOnClickListener(new Button.OnClickListener() {
public void onClick(View v) {
Toast.makeText(getApplicationContext(), "AHOJ",
Toast.LENGTH_LONG).show();
}
});
// or set onClickListener
myButton.setOnClickListener(myListener);
//end onCreate .....
private OnClickListener myListener = new OnClickListener() {
public void onClick(View v) {
}
}
Hmotnost 160 g
Procesor 1.4 GHz Qualcomm Scorpion
Displej 800 x 480, 4.3 in. ClearBlack AMOLED capacitive touchscreen, 16m-color WVGA, Corning® Gorilla® Glass (odolný povrch)
Velikost displeje v palcích 4,3
Rozměry 128 x 68 x 11,5
Fotoaparát 8 Mpix, 3264x2448 pixelů, dual-LED flash, autofocus Carl Zeiss optika, 720p video capture
HD video, natačení videosekvencí, editace fotografií, přední kamera
Operační system Windows Phone 7
Datové funkce GPS modul, WiFi, Bluetooth, NFC, GPRS, EDGE, HSCSD
Přední kamera 1 Megapixel, 1280x720 pixelů
Připojení Bluetooth 2.1, 802.11b/g/n, dual mode A-GPS/GLONASS, micro-USB, 3.5mm audio jack, FM radio
Výhody svižný operační systém, editace MS Office dokumentů, napojení na cloudové uložiště SkyDrive (25GB prostoru zdarma), integrace sociálních sítí
Nevýhody v porovnání s Androidem méně aplikaci ke stažení zdarma
Procesor 1.4 GHz Qualcomm Scorpion
Displej 800 x 480, 4.3 in. ClearBlack AMOLED capacitive touchscreen, 16m-color WVGA, Corning® Gorilla® Glass (odolný povrch)
Velikost displeje v palcích 4,3
Rozměry 128 x 68 x 11,5
Fotoaparát 8 Mpix, 3264x2448 pixelů, dual-LED flash, autofocus Carl Zeiss optika, 720p video capture
HD video, natačení videosekvencí, editace fotografií, přední kamera
Operační system Windows Phone 7
Datové funkce GPS modul, WiFi, Bluetooth, NFC, GPRS, EDGE, HSCSD
Přední kamera 1 Megapixel, 1280x720 pixelů
Připojení Bluetooth 2.1, 802.11b/g/n, dual mode A-GPS/GLONASS, micro-USB, 3.5mm audio jack, FM radio
Výhody svižný operační systém, editace MS Office dokumentů, napojení na cloudové uložiště SkyDrive (25GB prostoru zdarma), integrace sociálních sítí
Nevýhody v porovnání s Androidem méně aplikaci ke stažení zdarma
Editace: 2011-10-03 12:34:27
Počet článků v kategorii: 396
Url:file-open-read-to-stringbuilder-close-java-example