Created
March 14, 2016 20:55
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import android.content.Context; | |
import android.support.percent.PercentLayoutHelper; | |
import android.support.percent.PercentRelativeLayout; | |
import android.util.AttributeSet; | |
import android.view.View; | |
import android.view.ViewGroup; | |
/** | |
* Workaround for Issue 186498 | |
*/ | |
public class WorkaroundPercentRelativeLayout extends PercentRelativeLayout { | |
int mLastWidthMeasureSpec, mLastHeightMeasureSpec; | |
public WorkaroundPercentRelativeLayout(Context context) { | |
super(context); | |
} | |
public WorkaroundPercentRelativeLayout(Context context, AttributeSet attrs) { | |
super(context, attrs); | |
} | |
public WorkaroundPercentRelativeLayout(Context context, AttributeSet attrs, int defStyle) { | |
super(context, attrs, defStyle); | |
} | |
@Override | |
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { | |
super.onMeasure(widthMeasureSpec, heightMeasureSpec); | |
mLastHeightMeasureSpec = heightMeasureSpec; | |
mLastWidthMeasureSpec = widthMeasureSpec; | |
} | |
@Override | |
protected void onSizeChanged(int w, int h, int oldw, int oldh) { | |
super.onSizeChanged(w, h, oldw, oldh); | |
if (oldh == 0 && oldw == 0) { | |
return; | |
} | |
boolean reMeasure = false; | |
for (int i = 0, N = getChildCount(); i < N; i++) { | |
View view = getChildAt(i); | |
ViewGroup.LayoutParams params = view.getLayoutParams(); | |
if (params instanceof PercentLayoutHelper.PercentLayoutParams) { | |
PercentLayoutHelper.PercentLayoutInfo info = | |
((PercentLayoutHelper.PercentLayoutParams) params).getPercentLayoutInfo(); | |
if (info.widthPercent < 0 && info.heightPercent > 0 && info.aspectRatio > 0) { | |
if (params.width != 0) { | |
params.width = 0; | |
reMeasure = true; | |
} | |
} | |
if (info.heightPercent < 0 && info.widthPercent > 0 && info.aspectRatio > 0) { | |
if (params.height != 0) { | |
params.height = 0; | |
reMeasure = true; | |
} | |
} | |
} | |
} | |
if (reMeasure) { | |
measure(mLastWidthMeasureSpec, mLastHeightMeasureSpec); | |
} | |
} | |
} |
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