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NetworkRoundedImageView
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import android.content.Context; | |
import android.text.TextUtils; | |
import android.util.AttributeSet; | |
import android.view.ViewGroup; | |
import com.android.volley.VolleyError; | |
import com.android.volley.toolbox.ImageLoader; | |
import com.android.volley.toolbox.ImageLoader.ImageContainer; | |
import com.makeramen.RoundedImageView; | |
public class NetworkRoundedImageView extends RoundedImageView { | |
private String mUrl; | |
private int mDefaultImageId; | |
private int mErrorImageId; | |
private ImageLoader mImageLoader; | |
private ImageContainer mImageContainer; | |
public NetworkRoundedImageView(Context context) { | |
super(context); | |
} | |
public NetworkRoundedImageView(Context context, AttributeSet attrs) { | |
super(context, attrs); | |
} | |
public NetworkRoundedImageView(Context context, AttributeSet attrs, int defStyle) { | |
super(context, attrs, defStyle); | |
} | |
public void setImageUrl(String url, ImageLoader imageLoader) { | |
mUrl = url; | |
mImageLoader = imageLoader; | |
loadImageIfNecessary(false); | |
} | |
public void setDefaultImageResId(int defaultImage) { | |
mDefaultImageId = defaultImage; | |
} | |
public void setErrorImageResId(int errorImage) { | |
mErrorImageId = errorImage; | |
} | |
void loadImageIfNecessary(final boolean isInLayoutPass) { | |
int width = getWidth(); | |
int height = getHeight(); | |
ScaleType scaleType = getScaleType(); | |
boolean wrapWidth = false, wrapHeight = false; | |
if (getLayoutParams() != null) { | |
wrapWidth = getLayoutParams().width == ViewGroup.LayoutParams.WRAP_CONTENT; | |
wrapHeight = getLayoutParams().height == ViewGroup.LayoutParams.WRAP_CONTENT; | |
} | |
boolean isFullyWrapContent = wrapWidth && wrapHeight; | |
if (width == 0 && height == 0 && !isFullyWrapContent) { | |
return; | |
} | |
if (TextUtils.isEmpty(mUrl)) { | |
if (mImageContainer != null) { | |
mImageContainer.cancelRequest(); | |
mImageContainer = null; | |
} | |
setDefaultImageOrNull(); | |
return; | |
} | |
if (mImageContainer != null && mImageContainer.getRequestUrl() != null) { | |
if (mImageContainer.getRequestUrl().equals(mUrl)) { | |
return; | |
} else { | |
mImageContainer.cancelRequest(); | |
setDefaultImageOrNull(); | |
} | |
} | |
int maxWidth = wrapWidth ? 0 : width; | |
int maxHeight = wrapHeight ? 0 : height; | |
ImageLoader.ImageContainer newContainer = | |
mImageLoader.get(mUrl, new ImageLoader.ImageListener() { | |
@Override | |
public void onErrorResponse(VolleyError error) { | |
if (mErrorImageId != 0) { | |
setImageResource(mErrorImageId); | |
} | |
} | |
@Override | |
public void onResponse(final ImageLoader.ImageContainer response, | |
boolean isImmediate) { | |
if (isImmediate && isInLayoutPass) { | |
post(new Runnable() { | |
@Override | |
public void run() { | |
onResponse(response, false); | |
} | |
}); | |
return; | |
} | |
if (response.getBitmap() != null) { | |
setImageBitmap(response.getBitmap()); | |
} else if (mDefaultImageId != 0) { | |
setImageResource(mDefaultImageId); | |
} | |
} | |
}, maxWidth, maxHeight, scaleType); | |
mImageContainer = newContainer; | |
} | |
private void setDefaultImageOrNull() { | |
if (mDefaultImageId != 0) { | |
setImageResource(mDefaultImageId); | |
} else { | |
setImageBitmap(null); | |
} | |
} | |
@Override | |
protected void onLayout(boolean changed, int left, int top, int right, int bottom) { | |
super.onLayout(changed, left, top, right, bottom); | |
loadImageIfNecessary(true); | |
} | |
@Override | |
protected void onDetachedFromWindow() { | |
if (mImageContainer != null) { | |
mImageContainer.cancelRequest(); | |
setImageBitmap(null); | |
mImageContainer = null; | |
} | |
super.onDetachedFromWindow(); | |
} | |
@Override | |
protected void drawableStateChanged() { | |
super.drawableStateChanged(); | |
invalidate(); | |
} | |
} |
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