我想在我的应用程序中使用 ImageMagick 库来处理与图像相关的东西。我已经为它制作了示例代码，但执行后，它只显示微调器，不显示处理后获得的图像。我不知道是什么问题？这是我正在使用的代码：
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
// InputStream stream = getResources().openRawResource(R.raw.app_notes);
try {
final MagickImage img = new MagickImage(new ImageInfo("/sdcard/newsample.jpeg"));
// setContentView(R.layout.main);
Spinner s = (Spinner) findViewById(R.id.spinner);
ArrayAdapter adapter = ArrayAdapter.createFromResource(MainActivity.this,R.array.effects, android.R.layout.simple_spinner_item);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
s.setAdapter(adapter);
s.setOnItemSelectedListener(new OnItemSelectedListener() {
public void onItemSelected(AdapterView<?> parent, View view,
int pos, long id) {
ProgressThread t = new ProgressThread(img, pos);
//runOnUiThread(t);
t.run();
}
public void onNothingSelected(AdapterView<?> parent) {
// Do nothing.
}
});
ImageView iv = (ImageView) findViewById(R.id.imageView);
iv.setImageBitmap(MagickBitmap.ToBitmap(img));
} catch (MagickApiException e) {
e.printStackTrace();
} catch (MagickException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
/*
* TextView tv = new TextView(this);
* tv.setText(DisplayImageMetaData.displayMagickImage(img));
* setContentView(tv);
*/
int count = 2;
MagickImage images[] = new MagickImage[count];
for (int i = 0; i < count; i++) {
String path = "/mnt/sdcard/" + String.valueOf(i + 1) + ".jpeg";
try {
images[i] = new MagickImage(new ImageInfo(path));
} catch (MagickException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
try {
MagickImage image = new MagickImage(images);
image.setImageFormat("gif");
String fn = Environment.getExternalStorageDirectory() + "/Pictures/test.gif";
image.setFileName(fn);
ImageInfo info = new ImageInfo(fn);
info.setMagick("gif");
//image.writeImage(info);
byte blob[] = image.imageToBlob(info);
FileOutputStream fos = new FileOutputStream(fn);
fos.write(blob);
fos.close();
FileOutputStream testOS = new FileOutputStream("/mnt/sdcard/test.txt");
testOS.write("abc".getBytes());
testOS.close();
} catch (MagickException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
protected Dialog onCreateDialog(int id, Bundle bundle) {
switch (id) {
case PROGRESS_DIALOG:
/*
* ProgressDialog dialog =
* ProgressDialog.show(AndroidMagickActivity.this, "",
* "Loading. Please wait...", true);
*/
progressDialog = new ProgressDialog(MainActivity.this);
progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
progressDialog.setMessage("Loading...");
return progressDialog;
// return dialog;
default:
return null;
}
}
/** Nested class that performs progress calculations (counting) */
private class ProgressThread extends Thread {
MagickImage img;
int pos;
ProgressThread(MagickImage image, int pos) {
this.img = image;
this.pos = pos;
}
public void run() {
int effect = 0;
MainActivity.this.showDialog(PROGRESS_DIALOG);
switch (pos) {
case 1:
effect = NoiseType.UndefinedNoise;
break;
case 2:
effect = NoiseType.UniformNoise;
break;
case 3:
effect = NoiseType.GaussianNoise;
break;
case 4:
effect = NoiseType.MultiplicativeGaussianNoise;
break;
case 5:
effect = NoiseType.ImpulseNoise;
break;
case 6:
effect = NoiseType.LaplacianNoise;
break;
case 7:
effect = NoiseType.PoissonNoise;
break;
}
Bitmap bitmap = null;
try {
ImageView iv = (ImageView) findViewById(R.id.imageView);
MagickImage image = null;
if (pos < 8)
image = img.addNoiseImage(effect);
else if (pos == 9)
image = img.blurImage(5, 1);
else if (pos == 10)
image = img.charcoalImage(5, 1);
else if (pos == 11)
image = img.edgeImage(0);
if (image != null) {
bitmap = MagickBitmap.ToBitmap(image);
iv.setImageBitmap(bitmap);
}
MainActivity.this.dismissDialog(PROGRESS_DIALOG);
} catch (MagickException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
这是xml文件：
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<Spinner
android:id="@+id/spinner"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
<ImageView
android:id="@+id/imageView"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
/>
</LinearLayout>
这是日志文件：
09-25 22:45:13.322: V/Magick(554): Attempting to read from file /mnt/sdcard/1.jpeg
09-25 22:45:13.741: V/Magick(554): ReadImage completed
09-25 22:45:13.741: V/Magick(554): Attempting to read from file /mnt/sdcard/2.jpeg
09-25 22:45:14.112: V/Magick(554): ReadImage completed
09-25 22:45:14.534: D/dalvikvm(164): GC_EXPLICIT freed 151K, 7% free 21612K/23111K, paused 530ms+341ms
09-25 22:45:17.378: W/ActivityManager(80): Launch timeout has expired, giving up wake lock!
09-25 22:45:18.417: W/ActivityManager(80): Activity idle timeout for ActivityRecord{4117ad80 com.example.libmagick/.MainActivity}
09-25 22:45:23.281: I/ActivityManager(80): Process com.android.mms (pid 257) has died.
09-25 22:45:23.312: D/CountryDetectorService(80): No listener is left
09-25 22:45:30.272: D/dalvikvm(164): GC_EXPLICIT freed 57K, 7% free 21556K/23111K, paused 1035ms+723ms
09-25 22:45:34.442: D/dalvikvm(195): GC_EXPLICIT freed 112K, 5% free 12588K/13191K, paused 1724ms+88ms
09-25 22:45:41.332: D/dalvikvm(314): GC_EXPLICIT freed 158K, 5% free 12155K/12675K, paused 1287ms+291ms
09-25 22:45:59.741: V/TLINE(554): new: android.text.TextLine@40c43e30
09-25 22:46:00.462: D/dalvikvm(554): GC_FOR_ALLOC freed 3165K, 22% free 14154K/17927K, paused 158ms
09-25 22:46:00.462: I/dalvikvm-heap(554): Grow heap (frag case) to 15.274MB for 1155904-byte allocation
09-25 22:46:00.662: D/dalvikvm(554): GC_CONCURRENT freed <1K, 15% free 15283K/17927K, paused 11ms+4ms
09-25 22:46:00.922: D/dalvikvm(554): GC_FOR_ALLOC freed 1K, 15% free 15282K/17927K, paused 71ms
09-25 22:46:00.952: I/dalvikvm-heap(554): Grow heap (frag case) to 17.232MB for 2054928-byte allocation
09-25 22:46:01.062: D/dalvikvm(554): GC_FOR_ALLOC freed 0K, 14% free 17288K/19975K, paused 95ms
09-25 22:46:01.262: D/dalvikvm(554): GC_CONCURRENT freed <1K, 14% free 17289K/19975K, paused 9ms+4ms
09-25 22:46:02.402: D/dalvikvm(164): GC_EXPLICIT freed 5K, 7% free 21551K/23111K, paused 5ms+129ms
09-25 22:46:06.522: D/dalvikvm(554): GC_FOR_ALLOC freed 1286K, 18% free 16453K/19975K, paused 73ms
09-25 22:46:06.542: I/dalvikvm-heap(554): Grow heap (frag case) to 17.881MB for 1536016-byte allocation
09-25 22:46:06.722: D/dalvikvm(554): GC_FOR_ALLOC freed <1K, 17% free 17953K/21511K, paused 91ms
09-25 22:46:06.922: D/dalvikvm(554): GC_CONCURRENT freed <1K, 17% free 17953K/21511K, paused 7ms+4ms
09-25 22:46:07.212: D/dalvikvm(554): GC_FOR_ALLOC freed <1K, 17% free 17952K/21511K, paused 72ms
09-25 22:46:07.232: I/dalvikvm-heap(554): Grow heap (frag case) to 19.345MB for 1536016-byte allocation
09-25 22:46:07.422: D/dalvikvm(554): GC_FOR_ALLOC freed 0K, 16% free 19452K/23047K, paused 107ms
09-25 22:46:07.531: D/dalvikvm(554): GC_FOR_ALLOC freed 0K, 16% free 19452K/23047K, paused 97ms
09-25 22:46:07.552: I/dalvikvm-heap(554): Grow heap (frag case) to 20.810MB for 1536016-byte allocation
09-25 22:46:07.722: D/dalvikvm(554): GC_FOR_ALLOC freed 0K, 15% free 20952K/24583K, paused 138ms
09-25 22:46:08.781: I/ActivityManager(80): Displayed com.example.libmagick/.MainActivity: +1m1s413ms
09-25 22:46:08.781: W/InputManagerService(80): Window already focused, ignoring focus gain of: com.android.internal.view.IInputMethodClient$Stub$Proxy@411f68b8