Here in my code, I have used a Uri method to get the list of file in my sdcard and show them by gallery and imageswitcher. However, when i test it with my HTC wildfire s, my log tell me that the heap size is not enough. However, when i try on the emulator and my friend's galaxy sII, there is no problem. one more point, I have used some pictures with around 100kB, even in Wildfire s runs smooth but when the file is larger than around 800kB, the program was forced to stop. Galaxy SII can load image for even 2MB. How can I solve this problem?? here is my code. Thank You.
Layout.xml <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/ android" android:layout_width="match_parent" android:layout_height="match_parent"> <ImageSwitcher android:id="@+id/switcher" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_above="@+id/gallery" /> <Gallery android:id="@+id/gallery" android:background="#55000000" android:layout_width="match_parent" android:layout_alignParentBottom="true" android:layout_alignParentLeft="true" android:gravity="center_vertical" android:spacing="16dp" android:layout_height="100dp"/> </RelativeLayout> Source code: package testimage.android; import android.app.Activity; import java.io.File; import java.util.ArrayList; import android.content.Context; import android.net.Uri; import android.os.Bundle; import android.view.MotionEvent; import android.view.View; import android.view.View.OnTouchListener; import android.view.ViewGroup; import android.view.animation.AnimationUtils; import android.widget.AdapterView; import android.widget.BaseAdapter; import android.widget.Gallery; import android.widget.ImageSwitcher; import android.widget.ImageView; import android.widget.AdapterView.OnItemSelectedListener; import android.widget.Gallery.LayoutParams; import android.widget.ViewSwitcher.ViewFactory; public class Testimage3Activity extends Activity implements ViewFactory { private ImageSwitcher is; private Gallery gallery; private int downX, upX; private ArrayList<Uri> imgList = new ArrayList<Uri>(); /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); File imgDir = new File(android.os.Environment.getExternalStorageDirectory().getAbsolutePath() +"/image"); if(!imgDir.exists()){ imgDir.mkdirs(); } File[] imgFiles = imgDir.listFiles(); Uri fileUri = null; if (imgFiles != null) { for (File file : imgFiles) { fileUri = Uri.parse("file://" + file.getAbsolutePath()); imgList.add(fileUri); } } is = (ImageSwitcher) findViewById(R.id.switcher); is.setFactory(this); is.setInAnimation(AnimationUtils.loadAnimation(this, android.R.anim.fade_in)); is.setOutAnimation(AnimationUtils.loadAnimation(this, android.R.anim.fade_out)); is.setOnTouchListener(new OnTouchListener() { public boolean onTouch(View v, MotionEvent event) { if (event.getAction() == MotionEvent.ACTION_DOWN) { downX = (int) event.getX(); return true; } else if (event.getAction() == MotionEvent.ACTION_UP) { upX = (int) event.getX(); int index = 0; if (upX - downX > 100) { if (gallery.getSelectedItemPosition() == 0) index = gallery.getCount() - 1; else index = gallery.getSelectedItemPosition() - 1; } else if (downX - upX > 100) { if (gallery.getSelectedItemPosition() == (gallery .getCount() - 1)) index = 0; else index = gallery.getSelectedItemPosition() + 1; } gallery.setSelection(index, true); return true; } return false; } }); gallery = (Gallery) findViewById(R.id.gallery); gallery.setAdapter(new ImageAdapter(this)); gallery.setOnItemSelectedListener(new OnItemSelectedListener() { public void onItemSelected(AdapterView<?> arg0, View arg1, int position, long arg3) { is.setImageURI(imgList.get(position)); } public void onNothingSelected(AdapterView<?> arg0) { // TODO Auto-generated method stub } }); } public View makeView() { ImageView i = new ImageView(this); i.setBackgroundColor(0xFF000000); i.setScaleType(ImageView.ScaleType.CENTER); i.setLayoutParams(new ImageSwitcher.LayoutParams( LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT)); return i; } public class ImageAdapter extends BaseAdapter { public ImageAdapter(Context c) { mContext = c; } public int getCount() { return imgList.size(); } public Object getItem(int position) { return position; } public long getItemId(int position) { return position; } public View getView(int position, View convertView, ViewGroup parent) { ImageView i = new ImageView(mContext); i.setImageURI(imgList.get(position)); i.setAdjustViewBounds(true); i.setLayoutParams(new Gallery.LayoutParams( 50,70)); return i;} private Context mContext; } } Manifest: <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android"; package="testimage.android" android:versionCode="1" android:versionName="1.0" > <uses-sdk android:minSdkVersion="8" /> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/> <application android:icon="@drawable/ic_launcher" android:label="@string/app_name" > <activity android:label="@string/app_name" android:name=".Testimage3Activity" > <intent-filter > <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> -- You received this message because you are subscribed to the Google Groups "Android Developers" group. 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