package mina.android.helloandroid;
import android.app.Activity;
import android.os.Bundle;
public class HelloAndroid extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}
}
Folder Name | Description | Required |
src | Contains all the source code (class files) for the project | Yes |
gen | Contains the R.java class file | Generated automatically |
Android 1.5 | Its name changes according to the sdk version you use (1.5 here). Contains the Android API class files packed in android.jar files | Generated automatically |
assets | You can place any external resources (text files,images,…) in this folder. It’s much like the res file except it’s more like the file system where you put files that you want to access them as raw bytes | no |
res | Contains resources for the application | Yes |
drawable | Contains the images required for you application. You can add your own image files to this folder | No |
Layout | Contains the main.xml file that defines the view that construct the User Interface of the application | No |
Values | Contains other resources that can be used for your application such as string resources, styles or colors | No |
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
android_orientation="vertical"
android_layout_width="fill_parent"
android_layout_height="fill_parent"
>
<TextView
android_layout_width="fill_parent"
android_layout_height="wrap_content"
android_text="Gallery Demo"
/>
<Gallery
android_id="@+id/gallery"
android_layout_width="fill_parent"
android_layout_height="wrap_content"
android_gravity="center_horizontal"
android_spacing="100px"
/>
</LinearLayout>
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
gallery=(Gallery)findViewById(R.id.gallery);
//String array holding the values
String [] text=new String[]{"Hello","Hi","Alloha","Bonjour","Hallo","¡Hola"};
//Array adapter to display our values in the gallery control
ArrayAdapterarr=new ArrayAdapter (this, android.R.layout.simple_gallery_item, text);
gallery.setAdapter(arr);
}
<Gallery
android_id="@+id/gallery"
android_layout_width="fill_parent"
android_layout_height="wrap_content"
android_gravity="center_horizontal"
android_spacing="100px"
android_scrollbars="horizontal"
android_scrollbarFadeDuration="0"
android_scrollX="100px"
/>
final String [] text=new String[]{"Hello","Hi","Alloha","Bonjour","Hallo","¡Hola"};
gallery.setOnItemSelectedListener(new OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView parent, View view,
int position, long id) {
// TODO Auto-generated method stub
TextView txt=(TextView)findViewById(R.id.txt);
txt.setText(text[position].toString());
}
@Override
public void onNothingSelected(AdapterView parent) {
// TODO Auto-generated method stub
}
});
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
android_orientation="vertical"
android_layout_width="fill_parent"
android_layout_height="fill_parent"
>
<TextView
android_layout_width="fill_parent"
android_layout_height="wrap_content"
android_text="Gallery Demo"
android_id="@+id/txt"
/>
<Gallery
android_id="@+id/gallery"
android_layout_width="fill_parent"
android_layout_height="wrap_content"
android_gravity="center_horizontal"
android_spacing="100px"
android_scrollbars="horizontal"
android_scrollbarFadeDuration="0"
android_scrollX="100px"
/>
<LinearLayout
android_layout_width="fill_parent"
android_layout_height="wrap_content"
android_orientation="horizontal"
android_layout_marginTop="5px"
>
<Button
android_text="Previous"
android_layout_width="wrap_content"
android_layout_height="wrap_content"
android_id="@+id/btnPrev"
android_onClick="onClick"
/>
<Button
android_text="Next"
android_layout_width="wrap_content"
android_layout_height="wrap_content"
android_id="@+id/btnNext"
android_onClick="onClick"
/>
</LinearLayout>
</LinearLayout>
//Variable to store the number of items in the gallery
int ItemsInGallery=0;
int CurrentIndex=0;
@Overrideyou can download a sample program from here
public void onClick(View v) {
// TODO Auto-generated method stub
switch(v.getId())
{
case R.id.btnNext:
//Increase the index
CurrentIndex++;
//if reached the end of the gallery, then start from the first item
if(CurrentIndex>ItemsInGallery-1)
CurrentIndex=0;
gallery.setSelection(CurrentIndex,true);
txt.setText(String.valueOf(CurrentIndex));
break;
case R.id.btnPrev:
//Decrease the index
CurrentIndex=CurrentIndex-1;
//If reached the first item, then return to the last item in the gallery
if(CurrentIndex<0)
CurrentIndex=ItemsInGallery-1;
gallery.setSelection(CurrentIndex,true);
txt.setText(String.valueOf(CurrentIndex));
break;
}
}
 |
Tetapi perlu diketahui juga, ada beberapa metode dalam pengukurannya. Jadi perbedaan kabel, charger, hingga jenis smartphone akan menentukan hasilnya.
Note : Cara menggunakan Aplikasi unik dan cerdas diatas anda di haruskan untuk mendekatkan Android anda dengan Media Suara lainnya seperti Radio, TV dan lain-lain.
Sumber : Youtube
From syam kapuk
