更新されたコード
通常の映画/スライドショーを表示するギャラリーのテレビ用のアプリを作成しようとしています。リモートタッチすると次のアクティビティに移動し、ポートレートと名前でアーティストを選択でき、dpad センターで選択したアーティストがビューに移動します。最初のページのポートレートとテキスト情報を備えたスイッチャー、およびdpadの右/左で、情報->彼の仕事の方法に関するビデオ（オプション）->彼の画像1->画像n->情報から移動します。
さて、私の問題はこれです：
08-05 23:36:54.915: W/Trace(11124): error opening trace file: No such file or directory (2)
08-05 23:36:54.920: W/ActivityThread(11124): Application com.tsfat.galleyTV is waiting for the debugger on port 8100...
08-05 23:36:54.935: I/System.out(11124): Sending WAIT chunk
08-05 23:36:54.950: I/dalvikvm(11124): Debugger is active
08-05 23:36:55.135: I/System.out(11124): Debugger has connected
08-05 23:36:55.135: I/System.out(11124): waiting for debugger to settle...
08-05 23:36:55.340: I/System.out(11124): waiting for debugger to settle...
08-05 23:36:55.540: I/System.out(11124): waiting for debugger to settle...
08-05 23:36:55.740: I/System.out(11124): waiting for debugger to settle...
08-05 23:36:55.940: I/System.out(11124): waiting for debugger to settle...
08-05 23:36:56.140: I/System.out(11124): waiting for debugger to settle...
08-05 23:36:56.345: I/System.out(11124): waiting for debugger to settle...
08-05 23:36:56.545: I/System.out(11124): waiting for debugger to settle...
08-05 23:36:56.745: I/System.out(11124): waiting for debugger to settle...
08-05 23:36:56.945: I/System.out(11124): waiting for debugger to settle...
08-05 23:36:57.145: I/System.out(11124): waiting for debugger to settle...
08-05 23:36:57.350: I/System.out(11124): debugger has settled (1421)
08-05 23:36:58.030: D/MediaPlayer(11124): getMetadata
08-05 23:36:58.120: W/MediaPlayer(11124): info/warning (3, 0)
08-05 23:36:58.125: I/MediaPlayer(11124): Info (3,0)
08-05 23:37:30.340: I/ScreenSaverActivity(11124): Calling Intent
08-05 23:37:30.570: I/NamesList(11124): [Ishai Haviv,Kitzis,Sharon,]
08-05 23:37:30.615: I/ArtistAdapter.getView-position(11124): 0
08-05 23:37:30.635: I/ArtistPickerActivity.update()(11124): Initializing Thread for Ishai Haviv
08-05 23:37:30.640: E/BitmapWorkerTask(11124): get returns null
08-05 23:37:30.700: I/ArtistAdapter.getView-position(11124): 0
08-05 23:37:30.700: I/ArtistPickerActivity.update()(11124): Initializing Thread for Ishai Haviv
08-05 23:37:30.705: D/BitmapWorkerTask(11124): GOOD
08-05 23:37:30.710: I/ArtistAdapter.getView-position(11124): 1
08-05 23:37:30.715: I/ArtistPickerActivity.update()(11124): Initializing Thread for Kitzis
08-05 23:37:30.715: E/BitmapWorkerTask(11124): get returns null
08-05 23:37:30.720: I/ArtistAdapter.getView-position(11124): 2
08-05 23:37:30.725: I/ArtistPickerActivity.update()(11124): Initializing Thread for Sharon
08-05 23:37:30.725: E/BitmapWorkerTask(11124): get returns null
08-05 23:37:30.735: I/ArtistAdapter.getView-position(11124): 0
08-05 23:37:30.740: I/ArtistPickerActivity.update()(11124): Initializing Thread for Ishai Haviv
08-05 23:37:30.740: E/BitmapWorkerTask(11124): get returns null
08-05 23:37:30.815: I/ArtistAdapter.getView-position(11124): 0
08-05 23:37:30.820: I/ArtistPickerActivity.update()(11124): Initializing Thread for Ishai Haviv
08-05 23:37:30.820: D/BitmapWorkerTask(11124): GOOD
08-05 23:37:30.835: I/ArtistAdapter.getView-position(11124): 0
08-05 23:37:30.835: I/ArtistPickerActivity.update()(11124): Initializing Thread for Ishai Haviv
08-05 23:37:30.835: D/BitmapWorkerTask(11124): GOOD
08-05 23:37:30.845: I/ArtistAdapter.getView-position(11124): 0
08-05 23:37:30.845: I/ArtistPickerActivity.update()(11124): Initializing Thread for Ishai Haviv
08-05 23:37:30.850: D/BitmapWorkerTask(11124): GOOD
08-05 23:37:30.850: I/ArtistAdapter.getView-position(11124): 1
08-05 23:37:30.850: I/ArtistPickerActivity.update()(11124): Initializing Thread for Kitzis
08-05 23:37:30.855: D/BitmapWorkerTask(11124): GOOD
08-05 23:37:30.855: I/ArtistAdapter.getView-position(11124): 2
08-05 23:37:30.860: I/ArtistPickerActivity.update()(11124): Initializing Thread for Sharon
08-05 23:37:30.860: D/BitmapWorkerTask(11124): GOOD
08-05 23:37:30.935: D/BitmapWorkerTask(11124): GOOD
08-05 23:45:59.935: D/AndroidRuntime(11124): Shutting down VM
08-05 23:45:59.935: W/dalvikvm(11124): threadid=1: thread exiting with uncaught exception (group=0x40b79930)
08-05 23:45:59.985: E/AndroidRuntime(11124): FATAL EXCEPTION: main
08-05 23:45:59.985: E/AndroidRuntime(11124): java.lang.NullPointerException
08-05 23:45:59.985: E/AndroidRuntime(11124): at com.tsfat.galleyTV.ArtistPickerActivity$BitmapWorkerTask.onPostExecute(ArtistPickerActivity.java:263)
08-05 23:45:59.985: E/AndroidRuntime(11124): at android.os.AsyncTask.finish(AsyncTask.java:631)
08-05 23:45:59.985: E/AndroidRuntime(11124): at android.os.AsyncTask.access$600(AsyncTask.java:177)
08-05 23:45:59.985: E/AndroidRuntime(11124): at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:644)
08-05 23:45:59.985: E/AndroidRuntime(11124): at android.os.Handler.dispatchMessage(Handler.java:99)
08-05 23:45:59.985: E/AndroidRuntime(11124): at android.os.Looper.loop(Looper.java:137)
08-05 23:45:59.985: E/AndroidRuntime(11124): at android.app.ActivityThread.main(ActivityThread.java:5227)
08-05 23:45:59.985: E/AndroidRuntime(11124): at java.lang.reflect.Method.invokeNative(Native Method)
08-05 23:45:59.985: E/AndroidRuntime(11124): at java.lang.reflect.Method.invoke(Method.java:511)
08-05 23:45:59.985: E/AndroidRuntime(11124): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:795)
08-05 23:45:59.985: E/AndroidRuntime(11124): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:562)
08-05 23:45:59.985: E/AndroidRuntime(11124): at dalvik.system.NativeStart.main(Native Method)
08-05 23:46:00.110: I/Process(11124): Sending signal. PID: 11124 SIG: 9
何が起こっているのかわからない!!
これは私の新しいコードです:
package com.tsfat.galleyTV;
import java.io.File;
import java.lang.ref.WeakReference;
import android.R.bool;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.Gravity;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.ImageView.ScaleType;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;
public class ArtistPickerActivity extends Activity implements
AdapterView.OnItemClickListener {
String GALLERY_ROOT;
GridView menu;
Context c = this;
String[] names;
Bitmap mPlaceHolderBitmap;
/*
* private Runnable onTimeOut = new Runnable() {
*
* @Override public void run() { // TODO Auto-generated method stub Intent i
* = new Intent("android.intent.action.MAIN"); c.startActivity(i); }
*
* };
*
* Handler hTimeout = new Handler();
*/
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.artist_picker_layout);
// getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
getActionBar()
.setTitle(
"Navigate and select with dpad to get to know the Artist's work");
GALLERY_ROOT = getSharedPreferences("Gallery Path", 0).getString(
"GalleryPath", "storage/GALLERY/Gallery");
GridView gv = (GridView) findViewById(R.id.gridview);
gv.setAdapter(new ArtistsAdapter(this));
gv.setOnItemClickListener(this);
mPlaceHolderBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.loading_image);
// hTimeout.postDelayed(onTimeOut, 60*1000);
}
/*
* @Override public void onUserInteraction() { // TODO Auto-generated method
* stub super.onUserInteraction(); hTimeout.removeCallbacks(onTimeOut);
* hTimeout.postDelayed(onTimeOut, 60*1000); }
*/
public class ArtistView extends LinearLayout {
private ImageView portrait;
private TextView title;
public ArtistView(Context context, String name) {
super(context);
this.setPadding(8, 8, 8, 8);
this.setOrientation(VERTICAL);
portrait = new ImageView(c);
title = new TextView(c);
title.setGravity(Gravity.CENTER_HORIZONTAL);
portrait.setScaleType(ScaleType.CENTER_INSIDE);
addView(portrait);
addView(title);
update(name);
}
public void update(String name) {
Log.i("ArtistPickerActivity.update()", "Initializing Thread for "
+ name);
((TextView) getChildAt(1)).setText(name);
loadBitmap(new File(GALLERY_ROOT + "/Artists/" + name + "/Portrait.png"),
(ImageView) getChildAt(0));
}
}
public class ArtistsAdapter extends BaseAdapter {
Context c;
ArtistsAdapter(Context context) {
c = context;
File f = new File(GALLERY_ROOT + "/Artists");
if (!f.exists()) {
Toast.makeText(
c,
"Gallery file system not setup correctly!!\n"
+ "Please talk to manager to get fixed. Sorry for the annoyance.",
Toast.LENGTH_LONG).show();
finish();
}
names = f.list();
Log.i("NamesList", printArray(names));
}
private String printArray(String[] names) {
StringBuilder res = new StringBuilder();
res.append('[');
for (String i : names) {
res.append(i + ",");
}
res.append(']');
return res.toString();
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return names.length;
}
@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return new File(GALLERY_ROOT + "/Artists/" + names[position] + "/Portrait.png");
}
@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
Log.i("ArtistAdapter.getView-position", position + "");
ArtistView res = (ArtistView) convertView;
if (res == null)
res = new ArtistView(c, names[position]);
else
res.update(names[position]);
return res;
}
}
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
// TODO Auto-generated method stub
Log.i("GridViewItemClicked","Starting Activity with " + names[position]);
Intent moreInfo = new Intent(this,ArtistInfoActivity.class);
moreInfo.putExtra("name", names[position]);
startActivity(moreInfo);
}
public Bitmap decodeSampledBitmapFromResource(String file,
int reqWidth, int reqHeight) {
// First decode with inJustDecodeBounds=true to check dimensions
final BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
BitmapFactory.decodeFile(file, options);
// Calculate inSampleSize
options.inSampleSize = calculateInSampleSize(options, reqWidth,
reqHeight);
// Decode bitmap with inSampleSize set
options.inJustDecodeBounds = false;
return BitmapFactory.decodeFile(file, options);
}
public void loadBitmap(File path, ImageView imageView) {
if (cancelPotentialWork(path, imageView)) {
final BitmapWorkerTask task = new BitmapWorkerTask(imageView);
final AsyncDrawable asyncDrawable = new AsyncDrawable(mPlaceHolderBitmap, task);
imageView.setImageDrawable(asyncDrawable);
task.execute(path);
}
}
public static boolean cancelPotentialWork(File path, ImageView imageView) {
final BitmapWorkerTask bitmapWorkerTask = getBitmapWorkerTask(imageView);
if (bitmapWorkerTask != null) {
final File bitmapData = bitmapWorkerTask.data;
if (bitmapData != path) {
// Cancel previous task
bitmapWorkerTask.cancel(true);
} else {
// The same work is already in progress
return false;
}
}
// No task associated with the ImageView, or an existing task was
// cancelled
return true;
}
static class AsyncDrawable extends BitmapDrawable {
private final WeakReference<BitmapWorkerTask> bitmapWorkerTaskReference;
public AsyncDrawable(Bitmap bitmap,
BitmapWorkerTask bitmapWorkerTask) {
super(bitmap);
bitmapWorkerTaskReference = new WeakReference<BitmapWorkerTask>(bitmapWorkerTask);
}
public BitmapWorkerTask getBitmapWorkerTask() {
return bitmapWorkerTaskReference.get();
}
}
class BitmapWorkerTask extends AsyncTask {
private final WeakReference<ImageView> imageViewReference;
private File data;
public BitmapWorkerTask(ImageView imageView) {
// Use a WeakReference to ensure the ImageView can be garbage
// collected
imageViewReference = new WeakReference<ImageView>(imageView);
}
// Decode image in background.
@Override
protected Bitmap doInBackground(Object... params) {
data = (File) params[0];
if(imageViewReference != null){
ImageView iv = imageViewReference.get();
return decodeSampledBitmapFromResource(data.toString(),iv.getWidth(),iv.getHeight());
}
Log.e("BitmapWorkerTask", "doInBackground is null");
return null;
}
@Override
protected void onPostExecute(Object bitmap) {
if (isCancelled()) {
bitmap = null;
return;
}
if (imageViewReference != null && bitmap != null) {
final ImageView imageView = imageViewReference
.get();
final BitmapWorkerTask bitmapWorkerTask = getBitmapWorkerTask(imageView);
if (/*this == bitmapWorkerTask && */imageView != null) {
imageView.setImageBitmap((Bitmap) bitmap);
((BaseAdapter) menu.getAdapter()).notifyDataSetChanged();
}
Log.i("onPostExecute","this: " + (this==bitmapWorkerTask ? "not equal" : "GOOD"));
Log.i("onPostExecute","imageview: " + (imageView==null ? "null" : "GOOD"));
}
Log.i("onPostExecute","imageView reference: " + (imageViewReference==null ? "null" : "GOOD"));
Log.i("onPostExecute","bitmap: " + (bitmap==null ? "null" : "GOOD"));
}
}
public static int calculateInSampleSize(BitmapFactory.Options options,
int reqWidth, int reqHeight) {
// Raw height and width of image
final int height = options.outHeight;
final int width = options.outWidth;
int inSampleSize = 1;
if (height > reqHeight || width > reqWidth) {
// Calculate ratios of height and width to requested height and
// width
final int heightRatio = Math.round((float) height
/ (float) reqHeight);
final int widthRatio = Math.round((float) width / (float) reqWidth);
// Choose the smallest ratio as inSampleSize value, this will
// guarantee
// a final image with both dimensions larger than or equal to the
// requested height and width.
inSampleSize = heightRatio < widthRatio ? heightRatio : widthRatio;
}
return inSampleSize;
}
private static BitmapWorkerTask getBitmapWorkerTask(ImageView imageView) {
if (imageView != null) {
final Drawable drawable = imageView.getDrawable();
if (drawable instanceof AsyncDrawable) {
final AsyncDrawable asyncDrawable = (AsyncDrawable) drawable;
Log.d("BitmapWorkerTask","GOOD");
return asyncDrawable.getBitmapWorkerTask();
}
}
Log.e("BitmapWorkerTask","get returns null");
return null;
}
}
助けてください、私はこれをひどく終わらせる必要があります!!