Scroll to certain position on application Android example code
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ScrollTo(), getTop(), getBottom(), getLeft(), getRight(), ScrollView, LinearLayout Android Java xml example.
How get position of a View.
MainClass.java
main.xml
How get position of a View.
MainClass.java
/*
public void scrollTo (int x, int y)
Since: API Level 1
Set the scrolled position of your view. This will cause a call to onScrollChanged(int, int, int, int) and the view will be invalidated.
This version also clamps the scrolling to the bounds of our child.
Parameters
x the x position to scroll to
y the y position to scroll to
*/
// sroll to top of hscrollViewMain
ScrollView hscrollViewMain = (ScrollView)findViewById(R.id.scrollViewMain);
hscrollViewMain.scrollTo(0, 0); // scroll to application top
// get position of a View
EditText hEdit = (EditText)findViewById(R.id.username_edit);
int nY_Pos = hEdit.getTop(); // getBottom(); X_pos getLeft(); getRight();
// scroll to top of hEdit
hscrollViewMain.scrollTo(0,nY_Pos);
main.xml
<LinearLayout
xmlns:android="//schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<ScrollView
android:id="@*id/scrollViewMain"
android:layout_width="fill_parent"
android:layout_height="0dip"
android:layout_weight="1">
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:orientation="vertical"
android:paddingTop="5dip"
android:paddingBottom="13dip"
android:paddingLeft="20dip"
android:paddingRight="20dip">
<TextView
android:id="@+id/message"
android:textAppearance="?android:attr/textAppearanceSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="5dip" />
<TextView
android:textAppearance="?android:attr/textAppearanceSmall"
android:textStyle="bold"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/login_activity_username_label" />
<EditText
android:id="@+id/username_edit"
android:singleLine="true"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:minWidth="250dip"
android:scrollHorizontally="true"
android:capitalize="none"
android:autoText="false"
android:inputType="textEmailAddress" />
</LinearLayout>
</ScrollView>
</LinearLayout>
397LW NO topic_id
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Další témata ....(Topics)
1.) Try reopen the Emulaor and restart Eclipse.
OR
2.) Try to delete AVD from Eclipse menu Window - AVD manager.
OR
3.) Insert into manifest.xml this source code.
OR
2.) Try to delete AVD from Eclipse menu Window - AVD manager.
OR
3.) Insert into manifest.xml this source code.
<manifest xmlns:android="//schemas.android.com/apk/res/android"
package="com.myweb.mypackage"
android:installLocation="preferExternal"
Html.fromHtml(String) does not support all HTML tags. For example < ul > and < li > are not supported.
Try this source code as a substitute for HTML List Tags.
Result:
• Cessnock
• Dubbo
• Goulburn
• Grafton
• Lithgow
• Liverpool
• Newcastle
Supported tags
a
b
big
blockquote
br
cite
dfn
div
em
font
h1-h6
i
img
p
small
strong
sub
sup
tt
u
Try this source code as a substitute for HTML List Tags.
String str =
"• Cessnock<br />"
+"• Dubbo<br />"
+"• Goulburn<br />"
+"• Grafton<br />"
+"• Lithgow<br />"
+"• Liverpool<br />"
+"• Newcastle<br />"
;
textview.setText(Html.fromHtml(str));
Result:
• Cessnock
• Dubbo
• Goulburn
• Grafton
• Lithgow
• Liverpool
• Newcastle
Supported tags
bla.com
a
b
big
blockquote
br
cite
dfn
div
em
font
h1-h6
i
img
p
small
strong
sub
sup
tt
u
Sqlite3 create database and table with load.bat file and fill data to table example.
- Create folder for your project: my_sqlite_project
- Open folder and create file load.bat and paste to load.bat this text and save to project folder:
sqlite3 my_database.s3db < load_text.sql
pause
- Create load_text.sql file and paste this text and save to project folder:
CREATE TABLE [android_metadata] (
[locale] TEXT
);
CREATE TABLE [my_table] (
[_id] int NULL,
[word] VARCHAR(255) NULL,
[description] VARCHAR(255) NULL
.separator ";"
.import text_file.txt my_table
- Create text_file.txt and paste this text and save it as UTF-8:
1;word1;my first word
2;word2; my second word - Download sqlite3.exe and put to project folder.
- Run BAT file load.bat and read text instruction from console
- If database created you can open and edit this with sqlite database explorer
- Copy database to Asses Android project folder
- If you want using this database in Android application on device, you have to copy this database to folder on device /data/data/com.MyPackage/databases/
Eclipse: failed to create the java virtual machine - message box
- Open folder with Eclipse.exe and find eclipse.ini file
- Replace -vmargs
by your current real path of javaw.exe:
-vm "c:\Program Files\Java\jdk1.7.0_07\bin\javaw.exe"
-startup
plugins/org.eclipse.equinox.launcher_1.3.0.v20120522-1813.jar
--launcher.library
plugins/org.eclipse.equinox.launcher.win32.win32.x86_1.1.200.v20120522-1813
-product
com.android.ide.eclipse.adt.package.product
--launcher.XXMaxPermSize
256M
-showsplash
com.android.ide.eclipse.adt.package.product
--launcher.XXMaxPermSize
256m
--launcher.defaultAction
openFile
-vm "c:\Program Files\Java\jdk1.7.0_07\bin\javaw.exe”
-Dosgi.requiredJavaVersion=1.6
-Xms40m
-Xmx768m
-Declipse.buildId=v21.1.0-569685
R.string to string Android source code
R.array to string [] Android source code
R.array to string [] Android source code
String s = getResources().getString(R.string.my_string); // Hello world!!
String[] arrayOfStrings = getResources().getStringArray(R.array.my_array); // one, two
<xml version="1.0" encoding="utf-8">
<resources>
<string-array name="my_array">
<item>one</item>
<item>two</item>
</string-array>
<string name="my_string">Hello world!!</string>
</resources>
Editace: 2011-09-20 15:29:14
Počet článků v kategorii: 397
Url:scroll-to-certain-position-on-application-android-example-code
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