Change Screen Orientation Programmatically Android
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Landscape - portrait orientation change:
boolean mbOrientationLandscape = true;
if(mbOrientationLandscape ){
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
mbOrientationLandscape =false;
}else{
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
mbOrientationLandscape =true;
}
396LW NO topic_id
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Další témata ....(Topics)
Environment.getExternalStorageDirectory()+ File.separator
AndroidManifest.xml
Boolean canWrite = Environment.getExternalStorageDirectory().canWrite() ;
if(canWrite){
File f = new File(Environment.getExternalStorageDirectory()
+ File.separator + "my_image.jpg")
f.createNewFile();
}else{
}
AndroidManifest.xml
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
boolean fc(boolean b) {
return b;
}// end fc
boolean bA = true;
boolean bB = true;
boolean bC = bA || bB; // true
bA = true;
bB = false;
bC = bA || bB; // true
bA = false;
bB = true;
bC = bA || bB; // true
bA = false;
bB = false;
bC = bA || bB; // false
if(!fc(bB||bA))
System.out.println("false"); // false
else
System.out.println("true");
String [] arOfStrings = {"one", "two", "three"};
List<String> mListOfStrings = new ArrayList<String>(Arrays.asList(arOfStrings));
Collections.shuffle(mListOfstrings);
String str = mListOfStrings.get(2);// 2 is index of pozition an element
int [] arOfInt = {1, 2, 3};
List<Integer> mListOfInt = new ArrayList<Integer>(Arrays.asList(arOfInt));
Collections.shuffle(mListOfInt);
How change background color of View Android sample.
MainActivity.java
main.xml
MainActivity.java
public class MainActivity extends Activity {
TextView hTextView;
TableRow hTableRow;
Button hButton, hButtonStop;
private Handler mHandler = new Handler();
private int nCounter = 0;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
hTextView = (TextView)findViewById(R.id.idTextView);
hButton = (Button)findViewById(R.id.idButton);
hButton.setOnClickListener(mButtonStartListener);
hTableRow = (TableRow)findViewById(R.id.idTableRow1);
} // end onCreate
View.OnClickListener mButtonStartListener = new OnClickListener() {
public void onClick(View v) {
hTableRow.setBackgroundColor(Color.YELLOW);
}
};
}
main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="//schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<TableLayout android:layout_height="wrap_content" android:layout_width="fill_parent" android:id="@+id/tableLayout1">
<TableRow android:id="@+id/idTableRow1"
android:layout_width="wrap_content"
android:layout_height="wrap_content" android:background="#5655AA">
<TextView
android:id="@+id/idTextView"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello"
/>
</TableRow>
</TableLayout>
</LinearLayout>
Code look up at the Api Demos
android_fragments arguments attributes - three fragments on screen
android_fragments_alert_dialog
android_fragments_context_menu
android_fragments_custom_animation
android_fragments_dialog
android_fragments_dialog_or_activity
fragment_hide_show
fragment_layout
fragments_list_array
fragment_menu
android_fragments_get_result_from_fragment and tabs in two rows
android_fragments_recive_result
android_fragments_stack
fragment_tabs
android_fragments arguments attributes - three fragments on screen

android_fragments_alert_dialog

android_fragments_context_menu

android_fragments_custom_animation

android_fragments_dialog

android_fragments_dialog_or_activity

fragment_hide_show

fragment_layout

fragments_list_array

fragment_menu

android_fragments_get_result_from_fragment and tabs in two rows

android_fragments_recive_result

android_fragments_stack

fragment_tabs

Editace: 2013-07-21 11:21:34
Počet článků v kategorii: 396
Url:change-screen-orientation-programmatically-android
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