Android button text alignment left right - sample

android:gravity="left|center_vertical" or android:gravity="right|center_vertical"

               
<Button
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:gravity="left|center_vertical"
                    android:paddingLeft="20dp"
                    android:text="My Button"
                     />

396LW NO topic_id

Další témata ....(Topics)

Create array of strings in xml file Android example | create-array-of-strings-in-xml-file-android-example

Example source code for Android developers how create array of strings in *.xml file.
You can using array of strings in Spinner ( combobox - dropdown list ) or ListView etc.


<resources>
    <string-array name="colors">
        <item>red</item>
        <item>orange</item>
        <item>yellow</item>
        <item>green</item>
        <item>blue</item>
    </string-array>
</resources>

104

Unable to find explicit activity class Android Eclipse error | unable-to-find-explicit-activity-class-android-eclipse-error

android.content.ActivityNotFoundException: Unable to find explicit activity class {com.example.my_package/com.example.my_package.MainClass}; have you declared this activity in your AndroidManifest.xml?

Is MainClass.java in AndroidManifest as a activity ?
AndroidManifest.xml example


<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="//schemas.android.com/apk/res/android"
      package="com.example.my_packag"
      android:versionCode="1"
      android:versionName="1.0">
    <uses-sdk android:minSdkVersion="7" />

    <application android:icon="@drawable/icon" android:label="@string/app_name">
        <activity android:name=".MainClass"
                  android:label="@string/app_name">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

    </application>
</manifest>

380

Android Fragment Examples | android-fragment-examples

Code look up at the Api Demos

android_fragments arguments attributes - three fragments on screen
android/android_fragments_arguments.png

android_fragments_alert_dialog
android/android_fragments_alert_dialog.png

android_fragments_context_menu
android/android_fragments_context_menu.png

android_fragments_custom_animation
android/android_fragments_custom_animation.png

android_fragments_dialog
android/android_fragments_dialog.png

android_fragments_dialog_or_activity
android/android_fragments_dialog_or_activity.png

fragment_hide_show
android/fragment_hide_show.png

fragment_layout
android/fragment_dialog.png

fragments_list_array
android/fragments_list_array.png

fragment_menu
android/fragment_menu.png

android_fragments_get_result_from_fragment and tabs in two rows
android/android_fragments_get_result_from_fragment.png

android_fragments_recive_result
android/android_fragments_recive_result.png

android_fragments_stack
android/android_fragments_stack.png

fragment_tabs
android/fragment_tabs.png

109

Conversion to Dalvik format failed with error 1 | conversion-to-dalvik-format-failed-with-error-1

UNEXPECTED TOP-LEVEL EXCEPTION:
java.lang.IllegalArgumentException: already added: Lcz/okhelp/MyMathClass;

First try this solution!!!!!
Select your project in project tree and go to the Eclipse menu Project » Clean » Clean projects selected below » select your project and click OK.

If you create *.apk package with proguard sometimes you must back up the project, delete project, and create new project if you are unable to create *.apk file.

Check your AndroidManifest.xml if all Activity is correctly inserted. If you add a library project to Main project you have to insert Activity from library to Main project AndroidManifest.xml

Problem with the library.
I deleted library project from project tree and again put the _library project into the main project. This problem was resolved.
1.)Go to Project » Properties » Java Build Path » Libraries and remove (your projects) click OK.
2.)Go to Project » Clean » Clean projects selected below » select your project and click OK.
3.)Add again your LIBRARY project to your MAIN project Project » Properties » Java Build Path » Libraries.
See image below.

Problem with a *.apk file
If you create signed *.apk, you have to delete previous *.apk from your PC folder.

android/jar-library-create-with-eclipse.png

android/jar-library-create-with-eclipse.png

Sqlite create database and table with BAT file for Android | sqlite-create-database-and-table-with-bat-file

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/

Editace: 2011-10-30 11:25:20
Počet článků v kategorii: 396
Url:android-button-textalignment