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Get Set Screen Orientation Android Code


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// in AndroidManifest.xml
<Activity
 android:screenOrientation="portrait" // or landscape

// in MyActivity.java
boolean mbOrientacionLandscape = false;
int nOrientation =	getResources().getConfiguration().orientation;
if(mbOrientacionLandscape==true){
	 getResources().getConfiguration();
	if(nOrientation != Configuration.ORIENTATION_LANDSCAPE)
	setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
	
}
else{
	if(nOrientation != Configuration.ORIENTATION_PORTRAIT)
	setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
}


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Try this solution - into xml file add row to EditText tag:


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Black and white bitmap image pictures, gray scale colormatrix Android example.

public class ApokusActivity extends Activity {

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(new SampleView(this));
	}

	private static class SampleView extends View {

		// CONSTRUCTOR
		public SampleView(Context context) {
			super(context);
			setFocusable(true);

		}

		@Override
		protected void onDraw(Canvas canvas) {
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			// you need to insert a image flower_blue into res/drawable folder

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		    ColorMatrix cm = new ColorMatrix(
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		            });
		    cm.setSaturation(0);
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		    int h = bitmapOrg.getHeight();
			//canvas.drawBitmap(bitmapOrg, 10, 10, paint);
			canvas.drawBitmap(bitmapOrg, 10, 10 + h + 10, paint);

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Difference between logical operators and or Java | difference-between-logical-operators-and-or-java


Basic difference remember it!!!
if(TRUE && TRUE && TRUE) return TRUE otherwise FALSE

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Logical operator and &&
If all conditions/operands is TRUE return TRUE, otherwise return FALSE

if( true and true and true){ 
  // return true - do something
}
int a = 6;
if(a == 6 && a == 6 ) {
 // if TRUE
 // true && true return true, do something
}

if(a == 6 && a == 5){
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}else{
  // true && false return false, or false && false return false 
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Logical operator or ||
The logical OR operator (||) returns the boolean value true if either or both operands is true and returns false otherwise.
If one operands is TRUE, condition is TRUE:

if(FALSE OR FALSE OR TRUE) return TRUE
if(FALSE OR TRUE OR FALSE) return TRUE
if(FALSE OR FALSE OR FALSE) return FALSE

int a = 6;
if(a==6 || a==5){ // TRUE || FALSE return TRUE
  //if return TRUE
  //one from operadns is TRUE return true,  do something
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if(a==5 || a==4){ // FALSE || FALSE return FALSE
 // not attended
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AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="//schemas.android.com/apk/res/android"
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    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk android:minSdkVersion="13"
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    <uses-permission android:name="android.permission.INTERNET" />
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 android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|uiMode|screenSize|smallestScreenSize" />
</application>
</manifest>


onCreate in your Activity.java

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main.xml (res/layout)

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="//schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >
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        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="@string/hello" />
<LinearLayout xmlns:android="//schemas.android.com/apk/res/android"
android:id="@+id/idReklamaLayout"
android:orientation="vertical"
android:gravity="center"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
/>
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        android:layout_width="fill_parent"
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</LinearLayout>
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public class MainActivity extends Activity {

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}


Editace: 2013-07-27 11:15:02
Počet článků v kategorii: 397
Url:get-set-screen-orientation-android-code

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