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Make FabLayout layout looks fine in pre-L

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seven332 committed 2016-02-29 19:30:57 +08:00
1 parent 356bcb7bca
commit 8f7c67661b
2 files changed
+43 -74
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app/src/main/java/com/hippo/widget/FabLayout.java
+36 -74
View File
@@ -30,6 +30,7 @@ import android.view.animation.Interpolator;
import com.hippo.anani.AnimationUtils;
import com.hippo.anani.SimpleAnimatorListener;
import com.hippo.ehviewer.R;
import com.hippo.yorozuya.AssertUtils;
public class FabLayout extends ViewGroup implements View.OnClickListener {
@@ -39,10 +40,12 @@ public class FabLayout extends ViewGroup implements View.OnClickListener {
private static final String STATE_KEY_AUTO_CANCEL = "auto_cancel";
private static final String STATE_KEY_EXPANDED = "expanded";
private int mInterval;
private int mFabSize;
private int mFabMiniSize;
private int mIntervalPrimary;
private int mIntervalSecondary;
private boolean mFirst = true;
private boolean mExpanded = false;
private boolean mExpanded = true;
private boolean mAutoCancel = true;
private boolean mHidePrimaryFab = false;
private float mMainFabCenterY = -1f;
@@ -67,7 +70,11 @@ public class FabLayout extends ViewGroup implements View.OnClickListener {
private void init(Context context) {
setSoundEffectsEnabled(false);
mInterval = context.getResources().getDimensionPixelOffset(R.dimen.keyline_margin);
setClipToPadding(false);
mFabSize = context.getResources().getDimensionPixelOffset(R.dimen.fab_size);
mFabMiniSize = context.getResources().getDimensionPixelOffset(R.dimen.fab_min_size);
mIntervalPrimary = context.getResources().getDimensionPixelOffset(R.dimen.fab_layout_primary_margin);
mIntervalSecondary = context.getResources().getDimensionPixelOffset(R.dimen.fab_layout_secondary_margin);
}
@Override
@@ -99,74 +106,29 @@ public class FabLayout extends ViewGroup implements View.OnClickListener {
return (FloatingActionButton) getChildAt(index);
}
private int getChildMeasureSpec(int parentMeasureSpec) {
int parentMode = MeasureSpec.getMode(parentMeasureSpec);
int parentSize = MeasureSpec.getSize(parentMeasureSpec);
int childMode;
int childSize;
switch (parentMode) {
default:
case MeasureSpec.AT_MOST:
case MeasureSpec.EXACTLY:
childMode = MeasureSpec.AT_MOST;
childSize = parentSize;
break;
case MeasureSpec.UNSPECIFIED:
childMode = MeasureSpec.UNSPECIFIED;
childSize = parentSize;
}
return MeasureSpec.makeMeasureSpec(childSize, childMode);
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
if (mFirst) {
mFirst = false;
boolean expanded = mExpanded;
int count = getChildCount() - (mHidePrimaryFab ? 0 : 1);
for (int i = 0; i < count; i++) {
getChildAt(i).setVisibility(expanded ? View.VISIBLE : View.INVISIBLE);
}
}
AssertUtils.assertEquals("Measure mode must be MeasureSpec.EXACTLY",
MeasureSpec.getMode(widthMeasureSpec), MeasureSpec.EXACTLY);
AssertUtils.assertEquals("Measure mode must be MeasureSpec.EXACTLY",
MeasureSpec.getMode(heightMeasureSpec), MeasureSpec.EXACTLY);
int childWidthMeasureSpec = getChildMeasureSpec(widthMeasureSpec);
int childHeightMeasureSpec = getChildMeasureSpec(heightMeasureSpec);
int width = MeasureSpec.getSize(widthMeasureSpec);
int height = MeasureSpec.getSize(heightMeasureSpec);
int childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(
width - getPaddingLeft() - getPaddingRight(), MeasureSpec.AT_MOST);
int childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(
height - getPaddingTop() - getPaddingBottom(), MeasureSpec.AT_MOST);
measureChildren(childWidthMeasureSpec, childHeightMeasureSpec);
int maxWidth = 0;
int maxHeight = 0;
boolean firstChild = true;
int count = getChildCount();
for (int i = 0; i < count; i++) {
View child = getChildAt(i);
if (child.getVisibility() == View.GONE) {
continue;
}
maxWidth = Math.max(maxWidth, child.getMeasuredWidth());
maxHeight = maxHeight + child.getMeasuredHeight();
if (firstChild) {
firstChild = false;
} else {
maxHeight += mInterval;
}
}
// Account for padding too
maxWidth += getPaddingLeft() + getPaddingRight();
maxHeight += getPaddingTop() + getPaddingBottom();
// Check against minimum height and width
maxHeight = Math.max(maxHeight, getSuggestedMinimumHeight());
maxWidth = Math.max(maxWidth, getSuggestedMinimumWidth());
setMeasuredDimension(resolveSizeAndState(maxWidth, widthMeasureSpec, 0),
resolveSizeAndState(maxHeight, heightMeasureSpec, 0));
setMeasuredDimension(width, height);
}
// For pre-L, FloatActionButton use padding to show shadow, so its position looks wrong.
// We use it default size to make it position right
@Override
protected void onLayout(boolean changed, int l, int t, int r, int b) {
int interval = mInterval;
int centerX = 0;
int bottom = getMeasuredHeight() - getPaddingBottom();
int count = getChildCount();
@@ -179,20 +141,20 @@ public class FabLayout extends ViewGroup implements View.OnClickListener {
int childWidth = child.getMeasuredWidth();
int childHeight = child.getMeasuredHeight();
int right;
int layoutBottom;
int layoutRight;
if (i == count - 1) {
right = getMeasuredWidth() - getPaddingRight();
layoutBottom = bottom + ((childHeight - mFabSize) / 2);
layoutRight = getMeasuredWidth() - getPaddingRight() + ((childWidth - mFabSize) / 2);
bottom -= mFabSize + mIntervalPrimary;
centerX = layoutRight - (childWidth / 2);
mMainFabCenterY = layoutBottom - (childHeight / 2f);
} else {
right = centerX + (childWidth / 2);
layoutBottom = bottom + ((childHeight - mFabMiniSize) / 2);
layoutRight = centerX + (childWidth / 2);
bottom -= mFabMiniSize + mIntervalSecondary;
}
child.layout(right - childWidth, bottom - childHeight, right, bottom);
if (i == count - 1) {
centerX = right - (childWidth / 2);
mMainFabCenterY = bottom - (childHeight / 2f);
}
bottom -= (childHeight + interval);
child.layout(layoutRight - childWidth, layoutBottom - childHeight, layoutRight, layoutBottom);
}
}