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Date Calendar Java Android Example


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Calendar cal = new GregorianCalendar(), int year = cal.get(Calendar.YEAR),
ERA, MONTH, DAY_OF_MONTH, DAY_OF_WEEK, Android example code.

public class MainActivity 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;
        Calendar cal = new GregorianCalendar();

     int era = cal.get(Calendar.ERA);  // 0 B.C. before Christ, 1 Anno Domini              
     txtV.setText(txtV.getText() +"

" + era); int year = cal.get(Calendar.YEAR); // 2011 txtV.setText(txtV.getText() +"
" + year); int month = cal.get(Calendar.MONTH); // 0 is Januar txtV.setText(txtV.getText() +"
" + month); int day = cal.get(Calendar.DAY_OF_MONTH); // 1 to 31 txtV.setText(txtV.getText() +"
" + day); int dayOfWeek = cal.get(Calendar.DAY_OF_WEEK); // 1=Sunday, 2=Monday ... txtV.setText(txtV.getText() +"
" + dayOfWeek); } }

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321

Installation error: INSTALL_FAILED_CONTAINER_ERROR | installation-error-install_failed_container_error


1.) Try delete some apps from Android emulator (can from Eclipse DDMS perspective
- File Explorer tab - data/apps folder path )
2.) Try resize emulator internal storage or SD card storage to hight size
3.)Try add to AndroidManifest.xml android:installLocation="preferExternal"

<manifest xmlns:android="//schemas.android.com/apk/res/android"
    package="com.myweb.mypackage"
    android:installLocation="preferExternal"

4.) Try resize particion from Eclipse
Preferences,
select Android- Launch
Add "-partition-size 1024" into "Default emulator option” field.
Click "Apply” and use your emulator as usual
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How to resize an image in ImageView Android source code.
Resize imageview layout and image will resize too:

	public void resizeImageView(int width, int height) {
		final ImageView picture1 = (ImageView)findViewById(R.id.imageView1);
		LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(width, height);
		picture1.setLayoutParams(layoutParams);
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Windows set Environment Variables - Java path | windows-set-environment-variables-java-path


How set JAVA path to Environment Variables on Windows (7)
Select Start menu > Computer > System Properties > Advanced System Settings(properties).
Then open Advanced tab > Environment Variables and add a new system variable JAVA_HOME that points to your JDK folder, for example

 C:\Program Files\Java\jdk1.8.0_05
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Where Eclipse stored Settings and Templates Java Code | where-eclipse-stored-templates-java-code



C:\documents\workspace\.metadata\.plugins\org.eclipse.core.runtime\.settings\org.eclipse.jdt.ui.prefs
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Activity Lifecycle if button Home pressed Android example | activity-lifecycle-if-button-home-pressed-android-example


If on Android emulator home button pressed.

// button home presssed
19:37:06.727: INFO/ActivityManager(60): Starting: 
Intent { act=android.intent.action.MAIN cat=[android.intent.category.HOME] 
flg=0x10200000 cmp=com.android.launcher/com.android.launcher2.Launcher } from pid 60

19:37:06.807: INFO/onSaveInstanceState(339): onSaveInstanceState()
19:37:06.848: INFO/onPause(339): onPause()
19:37:07.968: INFO/onStop(339): onStop()


Diagram of Activity lifecycle if button HOME pressed

life_cycle_button_home_pressed


Editace: 2011-09-29 13:32:10
Počet článků v kategorii: 397
Url:date-calendar-java-android-example

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