Android Fragment Examples
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

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Další témata ....(Topics)
First cteate big icon 512x512 px formtat .PGN in graphics editor as Photoshop, Gimp, Piant.NET and save image.
If you create new project via Eclipse and choice your 512x512 image for ic_launcher.
Eclipse will make all icons from this image for new application very well.
If you create new project via Eclipse and choice your 512x512 image for ic_launcher.
Eclipse will make all icons from this image for new application very well.


Bitmap size calculation:
bmpHeight * bmpWidth
For example:
Resolution of image 1024x860 = 880 640 pixels
If every pixel get 4 byte of memory:
880 640x4= 3 522 560 (3.5MB)
Get bitmap size without allocation of memory:
Get Memory size:
Make your bitmap not bigger as maxMemory size
final int maxMemory = (int) (Runtime.getRuntime().maxMemory() / 1024);
bmpHeight * bmpWidth
For example:
Resolution of image 1024x860 = 880 640 pixels
If every pixel get 4 byte of memory:
880 640x4= 3 522 560 (3.5MB)
Get bitmap size without allocation of memory:
BitmapFactory.Options options = new BitmapFactory.Options();
// If set to true, the decoder will return null (no bitmap), but the out... fields will still
// be set, allowing the caller to query the bitmap without having to allocate the memory for its pixels.
options.inJustDecodeBounds = true;
BitmapFactory.decodeResource(getResources(), R.drawable.my_image, options);
int imageHeight = options.outHeight; // 1024
int imageWidth = options.outWidth; // 860
String imageType = options.outMimeType; // .jpg .png .gif
Get Memory size:
Make your bitmap not bigger as maxMemory size
final int maxMemory = (int) (Runtime.getRuntime().maxMemory() / 1024);
float density = getResources().getDisplayMetrics().density;
Debug.MemoryInfo memoryInfo = new Debug.MemoryInfo();
Debug.getMemoryInfo(memoryInfo);
final int maxMemory = (int) (Runtime.getRuntime().maxMemory() / 1024);
final int freeMemory = (int) (Runtime.getRuntime().freeMemory() / 1024);
String memMessage = String.format(
"Free=%d kB,
MaxMem=%d kB,
Memory: Pss=%.2f MB, Private=%.2f MB, Shared=%.2f MB",
freeMemory,
maxMemory,
memoryInfo.getTotalPss() / 1024.0,
memoryInfo.getTotalPrivateDirty() / 1024.0,
memoryInfo.getTotalSharedDirty() / 1024.0);
((TextView)findViewById(R.id.textViewInfo)).setText(memMessage );
import android.content.Context;
import android.media.AudioManager;
import android.media.SoundPool;
public class SoundManager
{
private SoundPool soundPool;
private int[] sm;
Context context;
public SoundManager(Context context) {
this.context = context;
soundPool = new SoundPool(4, AudioManager.STREAM_MUSIC, 0);
sm = new int[2];
// fill your sounds
sm[0] = soundPool.load(context, R.raw.my_sound1, 1);
sm[1] = soundPool.load(context, R.raw.my_sound2, 1);
}
public final void playSound(int sound) {
AudioManager mgr = (AudioManager)context.getSystemService(
Context.AUDIO_SERVICE);
float streamVolumeCurrent =
mgr.getStreamVolume(AudioManager.STREAM_MUSIC);
float streamVolumeMax = mgr.getStreamMaxVolume(AudioManager.STREAM_MUSIC);
float volume = streamVolumeCurrent / streamVolumeMax;
soundPool.play(sm[sound], volume, volume, 1, 0, 1f);
}
public final void cleanUpIfEnd() {
sm = null;
context = null;
soundPool.release();
soundPool = null;
}
}
Warning in AndroidManifest.xml:
tag should specify a target API level (the highest verified version; when running on
later versions, compatibility behaviors may be enabled) with android:targetSdkVersion="?"
Solution:
later versions, compatibility behaviors may be enabled) with android:targetSdkVersion="?"
Solution:
<uses-sdk android:minSdkVersion="4"
android:targetSdkVersion="16" />
Open your workspace folder and subfolder .metadata:
C:\Users\workspace\.metadata\
Delete .lock file
C:\Users\workspace\.metadata\
Delete .lock file
Editace: 2017-02-01 12:36:57
Počet článků v kategorii: 396
Url:android-fragment-examples