Android emulator freezes at startup create new virtual device

xml RelativeLayout Android example:

Eclipse graphical xml layout editor
[caption id="attachment_896" align="alignleft" width="261" caption="Relativelayout Eclipse graphical editor"][/caption]

res/layout/main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="//schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent">
    <TextView
        android:id="@+id/idLabel"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="Enter word"/>
    <EditText
        android:id="@+id/idEntry"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:background="@android:drawable/editbox_background"
        android:layout_below="@id/idLabel"/>
    <Button
        android:id="@+id/idOk"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@id/idEntry"
        android:layout_alignParentRight="true"
        android:layout_marginLeft="10dip"
        android:text="OK" />
    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_toLeftOf="@id/idOk"
        android:layout_alignTop="@id/idOk"
        android:text="Cancel" />
</RelativeLayout>

How setup color coloring highlight highlighting syntax font size and family in Eclipse Java and XML editor Android example
Java editor

1. Go to Eclipse menu Window -> Preferences


2. Doubleclick on Java


3. Double click on Editor


4. Select Java, Javadocs or Comments and setup color and font


5. Font size and family change from Window->Preferences-> General->Appearance->Colors and Fonts



6. Press OK for saving changes

xml editor
xml editor double click in Preferences dialog on xml -> Editor -> Syntax coloring
[caption id="attachment_627" align="alignleft" width="297" caption="Eclipse editor syntax color settings"][/caption]

Solution:

public void alertMy(String sTitle, String sMessage){
	AlertDialog.Builder builder = new AlertDialog.Builder(Test.this); // activity
  builder.setTitle(sTitle)
  .setMessage(sMessage)
  .setCancelable(false)
  .setNegativeButton("Close",new DialogInterface.OnClickListener() {
      public void onClick(DialogInterface dialog, int id) {
          dialog.cancel();
      }
  });
  AlertDialog alert = builder.create();
  alert.show();

}

Why the app selects data from basic layout folder if smallest width is higher then the number in folder name?
Example 1
layout-sw600dp values-sw600dp (smallest width sw for data usage from this folder is 600dp density independent pixel!!!!!)
Device screen resolution is 1200 x 900 px (pixel) Wow, app to be select data from sw600dp folder! Realy?
DPI of device screen - dot per inch (pixel per inch) is 480 pixel it is wery important number!

1. App selects smallest dimension of screen. In our case 900 px
   Medium screen have 160 dpi (The density-independent pixel is equivalent to one physical pixel on a 160 dpi screen, which is the baseline density assumed by the system for a "medium" density screen.).



2. App calculate ratio 480 / 160 = 3 (The conversion of dp units to screen pixels: px = dp * (dpi / 160))



3. App calculate smallest dimesnion of screen in dp 900 / 3 = 300 dip or dp (density independed pixel).



4. App selects data from basic values and layout folder because sw600dp is greater than 300dp.

In our case smallest dimension of screen must be at least 1800 real - physical pixels (1800 px / 3 ratio(dpi/160) = 600 dp (dip density independend pixels) to be used data from folders values-sw600dp and layout-sw600dp.


Example 2 see Example 1 abouve
Device: Nexus 7 (2012) selected from Android Studio tool layout editor
Resolution: 800x1280 px
DPI: tvdpi (approximately 213dpi)
Ratio: 1.33 (213 / 160)
Smallest width in px: 800
Convert px to dp: 601.5 (800 / 1.33)
Result:Smallest width is 601.5dp The App to be used data from folders values-sw600dp and layout-sw600dp.

Sqlite3 create database and table with load.bat file and fill data to table example.

1. Create folder for your project: my_sqlite_project


2. 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
   
   
   
   




3. 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
   
   
   
   



4. Create text_file.txt and paste this text and save it as UTF-8:
   

   
   1;word1;my first word
   
   2;word2; my second word 
   
   

   
   



5. Download sqlite3.exe and put to project folder.


6. Run BAT file load.bat and read text instruction from console


7. If database created you can open and edit this with sqlite database explorer


8. Copy database to Asses Android project folder


9. 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/