我想在两个按钮之间分开点击，当按下按钮1时，初始化model1，第一个模型的分割将显示在屏幕上，而button2和model2的分割相同 问题是：2个模型没有分开，因为当点击两个按钮中的任何一个时，两个模型同时出现。
这是（MainSecond.java），我初始化了2个按钮：
public class MainSecond extends Activity {
public Button button1;
public Button button2;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.second_main);
button1 = (Button) findViewById(R.id.button1);
button1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Toast.makeText(MainSecond.this,"b1c",Toast.LENGTH_SHORT).show();
Intent intent = new Intent(MainSecond.this, MainActivity.class);
intent.putExtra("message","hello");
startActivity(intent);
}
});
button2 = (Button) findViewById(R.id.button2);
button2.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent intent = new Intent(MainSecond.this, MainActivity.class);
intent.putExtra("message","hi");
startActivity(intent);
}
});
}
}
这是我的MainActivity.java，我点击2个按钮并初始化2个模型：
public void onCreate (Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
buckyButton = findViewById(R.id.buckysButton);
// src_img =(ImageView) findViewById(R.id.src_img) ;
Intent intent=getIntent();
// int intval=intent.getIntExtra("name",0);
String message=intent.getStringExtra("message");
if(message=="hello"){
initModel();
}
else if(message=="hi"){
initModel2();
}
}
private void initModel() {
new InitializeModelAsyncTask().execute((Void)null);
}
private void initModel2() {
new InitializeModelAsyncTask2().execute((Void)null);
}
public class InitializeModelAsyncTask extends AsyncTask<Void, Void, Boolean> {
@Override
protected Boolean doInBackground(Void... voids) {
final boolean ret = DeeplabModel.initialize();
Logger.debug("initialize deeplab model: %s", ret);
return ret;
}
}
public class InitializeModelAsyncTask2 extends AsyncTask<Void, Void, Boolean> {
@Override
protected Boolean doInBackground(Void... voids) {
final boolean ret2 = DeeplabModel2.initialize();
Logger.debug("initialize deeplab model: %s", ret2);
}
}
这是最重要的代码，负责在屏幕上显示模型：
SegmentBitmapsLoader.java
public class SegmentBitmapsLoader extends AbsAsyncDataLoader<List<SegmentBitmap>> {
private Uri mImageUri;
public SegmentBitmapsLoader(Context context, Uri imageUri) {
super(context);
mImageUri = imageUri;
}
@Nullable
@Override
public List<SegmentBitmap> loadInBackground() {
final Context context = getContext();
if (context == null) {
return null;
}
final Resources res = context.getResources();
if (res == null) {
return null;
}
if (mImageUri == null) {
return null;
}
final String filePath = FilePickUtils.getPath(context, mImageUri);
Logger.debug("file to mask: %s", filePath);
if (TextUtils.isEmpty(filePath)) {
return null;
}
boolean vertical = checkAndReportDimen(filePath);
final int dw = res.getDimensionPixelSize(
vertical ? R.dimen.image_width_v : R.dimen.image_width_h);
final int dh = res.getDimensionPixelSize(
vertical ? R.dimen.image_height_v : R.dimen.image_height_h);
Logger.debug("display image dimen: [%d x %d]", dw, dh);
Bitmap bitmap = decodeBitmapFromFile(filePath, dw, dh);
if (bitmap == null) {
return null;
}
List<SegmentBitmap> bitmaps = new ArrayList<>();
bitmaps.add(new SegmentBitmap(R.string.label_original, bitmap));//important note
final int w = bitmap.getWidth();
final int h = bitmap.getHeight();
Logger.debug("decoded file dimen: [%d x %d]", w, h);
EventBus.getDefault().post(new ImageDimenEvent(mImageUri, w, h));
if (DeeplabModel2.initialize()==true) {
float resizeRatio = (float) DeeplabModel2.INPUT_SIZE / Math.max(bitmap.getWidth(), bitmap.getHeight());
int rw = Math.round(w * resizeRatio);
int rh = Math.round(h * resizeRatio);
Logger.debug("resize bitmap: ratio = %f, [%d x %d] -> [%d x %d]",
resizeRatio, w, h, rw, rh);
Bitmap resized = ImageUtils.tfResizeBilinear(bitmap, rw, rh);
Bitmap mask = DeeplabModel2.segment(resized);
if (mask != null) {
mask = BitmapUtils.scaleBitmap(mask, w, h);
bitmaps.add(new SegmentBitmap(R.string.label_mask, mask));
final Bitmap cropped = cropBitmapWithMask(bitmap, mask);
bitmaps.add(new SegmentBitmap(R.string.label_cropped, cropped));
} else {
bitmaps.add(new SegmentBitmap(R.string.label_mask, (Bitmap) null));
bitmaps.add(new SegmentBitmap(R.string.label_cropped, (Bitmap) null));
}
}
else if (DeeplabModel.initialize()==true) {
float resizeRatio = (float) DeeplabModel.INPUT_SIZE / Math.max(bitmap.getWidth(), bitmap.getHeight());
int rw = Math.round(w * resizeRatio);
int rh = Math.round(h * resizeRatio);
Logger.debug("resize bitmap: ratio = %f, [%d x %d] -> [%d x %d]",
resizeRatio, w, h, rw, rh);
Bitmap resized = ImageUtils.tfResizeBilinear(bitmap, rw, rh);
Bitmap mask = DeeplabModel.segment(resized);
if (mask != null) {
mask = BitmapUtils.scaleBitmap(mask, w, h);
bitmaps.add(new SegmentBitmap(R.string.label_mask, mask));
final Bitmap cropped = cropBitmapWithMask(bitmap, mask);
bitmaps.add(new SegmentBitmap(R.string.label_cropped, cropped));
} else {
bitmaps.add(new SegmentBitmap(R.string.label_mask, (Bitmap) null));
bitmaps.add(new SegmentBitmap(R.string.label_cropped, (Bitmap) null));
}
}
return bitmaps;
}
private boolean checkAndReportDimen(String filePath) {
if (TextUtils.isEmpty(filePath)) {
return false;
}
// First decode with inJustDecodeBounds=true to check dimensions
final BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
BitmapFactory.decodeFile(filePath, options);
final int width = options.outWidth;
final int height = options.outHeight;
Logger.debug("original image dimen: %d x %d", width, height);
EventBus.getDefault().post(new ImageDimenEvent(mImageUri, width, height));
return (height > width);
}
private Bitmap cropBitmapWithMask(Bitmap original, Bitmap mask) {
if (original == null
|| mask == null) {
return null;
}
final int w = original.getWidth();
final int h = original.getHeight();
if (w <= 0 || h <= 0) {
return null;
}
Bitmap cropped = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(cropped);
Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.DST_IN));
canvas.drawBitmap(original, 0, 0, null);
canvas.drawBitmap(mask, 0, 0, paint);
paint.setXfermode(null);
return cropped;
}
public static Bitmap decodeBitmapFromFile(String filePath,
int reqWidth,
int reqHeight) {
if (TextUtils.isEmpty(filePath)) {
return null;
}
// First decode with inJustDecodeBounds=true to check dimensions
final BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
BitmapFactory.decodeFile(filePath, options);
// Calculate inSampleSize
options.inSampleSize = calculateInSampleSize(options, reqWidth, reqHeight);
// Decode bitmap with inSampleSize set
options.inJustDecodeBounds = false;
return BitmapFactory.decodeFile(filePath, options);
}
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) {
final int halfHeight = height / 2;
final int halfWidth = width / 2;
// Calculate the largest inSampleSize value that is a power of 2 and keeps both
// height and width larger than the requested height and width.
while ((halfHeight / inSampleSize) >= reqHeight
&& (halfWidth / inSampleSize) >= reqWidth) {
inSampleSize *= 2;
}
}
return inSampleSize;
}
}
答案 0 :(得分：0)
我建议你看看设计模式。 你试图使用抽象工厂模式（https://en.wikipedia.org/wiki/Abstract_factory_pattern）来实现id。
以下是一个快速示例：
abstract interface IModelAsyncTask {
public void action1();
public void action2();
}
并且实现如下：
// ModelAsyncTask1
public class ModelAsyncTask1 implements IModelAsyncTask {
@override
public void action1() {
// Logic here
}
public void action2() {
// Logic here
}
}
// ModelAsyncTask2
public class ModelAsyncTask2 implements IModelAsyncTask {
@override
public void action1() {
// Logic here
}
public void action2() {
// Logic here
}
}
并在您的活动中，只需初始化：
IModelAsyncTask mAsyncTask;
if (condition1){
mAsyncTask = ModelAsyncTask1();
} else if (condition2) {
mAsyncTask = ModelAsyncTask2();
} else {
// Throw exception
}
mAsyncTask.action1();