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package com.xtremelabs.robolectric.shadows;
import android.app.Application;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import com.xtremelabs.robolectric.internal.AppSingletonizer;
import com.xtremelabs.robolectric.internal.Implementation;
import com.xtremelabs.robolectric.internal.Implements;
import com.xtremelabs.robolectric.res.ResourceLoader;
import static com.xtremelabs.robolectric.Robolectric.shadowOf;
/**
* Shadow of {@code LayoutInflater} that actually inflates layouts into {@code View}s that are functional enough to
* support testing.
*/
@Implements(LayoutInflater.class)
public class ShadowLayoutInflater {
private static AppSingletonizer<LayoutInflater> instances = new LayoutInflaterAppSingletonizer();
private Context context;
private static LayoutInflater bind(LayoutInflater layoutInflater, Context context) {
shadowOf(layoutInflater).context = context;
return layoutInflater;
}
@Implementation
public static LayoutInflater from(Context context) {
return bind(instances.getInstance(context), context);
}
@Implementation
public Context getContext() {
return context;
}
@Implementation
public View inflate(int resource, ViewGroup root, boolean attachToRoot) {
return getResourceLoader().inflateView(context, resource, attachToRoot ? root : null);
}
@Implementation
public View inflate(int resource, ViewGroup root) {
return inflate(resource, root, root != null);
}
private ResourceLoader getResourceLoader() {
return shadowOf(context.getApplicationContext()).getResourceLoader();
}
private static class LayoutInflaterAppSingletonizer extends AppSingletonizer<LayoutInflater> {
public LayoutInflaterAppSingletonizer() {
super(LayoutInflater.class);
}
@Override protected LayoutInflater get(ShadowApplication shadowApplication) {
return shadowApplication.getLayoutInflater();
}
@Override protected void set(ShadowApplication shadowApplication, LayoutInflater instance) {
shadowApplication.layoutInflater = instance;
}
@Override protected LayoutInflater createInstance(Application applicationContext) {
return new MyLayoutInflater(applicationContext);
}
private static class MyLayoutInflater extends LayoutInflater {
public MyLayoutInflater(Context context) {
super(context);
}
@Override public LayoutInflater cloneInContext(Context newContext) {
return bind(new MyLayoutInflater(newContext), newContext);
}
}
}
}
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