117 lines
4.2 KiB
Java
117 lines
4.2 KiB
Java
package androidx.appcompat.widget;
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import android.content.Context;
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import android.content.res.TypedArray;
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import android.util.AttributeSet;
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import android.view.View;
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import android.widget.LinearLayout;
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import androidx.annotation.NonNull;
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import androidx.annotation.Nullable;
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import androidx.annotation.RestrictTo;
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import androidx.appcompat.R;
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import androidx.core.view.ViewCompat;
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@RestrictTo({RestrictTo.Scope.LIBRARY_GROUP_PREFIX})
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public class ButtonBarLayout extends LinearLayout {
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private static final int PEEK_BUTTON_DP = 16;
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private boolean mAllowStacking;
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private int mLastWidthSize = -1;
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private int mMinimumHeight = 0;
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public ButtonBarLayout(@NonNull Context context, @Nullable AttributeSet attributeSet) {
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super(context, attributeSet);
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int[] iArr = R.styleable.ButtonBarLayout;
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TypedArray obtainStyledAttributes = context.obtainStyledAttributes(attributeSet, iArr);
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ViewCompat.saveAttributeDataForStyleable(this, context, iArr, attributeSet, obtainStyledAttributes, 0, 0);
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this.mAllowStacking = obtainStyledAttributes.getBoolean(R.styleable.ButtonBarLayout_allowStacking, true);
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obtainStyledAttributes.recycle();
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}
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private int getNextVisibleChildIndex(int i) {
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int childCount = getChildCount();
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while (i < childCount) {
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if (getChildAt(i).getVisibility() == 0) {
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return i;
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}
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i++;
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}
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return -1;
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}
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private boolean isStacked() {
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return getOrientation() == 1;
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}
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private void setStacked(boolean z2) {
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setOrientation(z2 ? 1 : 0);
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setGravity(z2 ? 5 : 80);
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View findViewById = findViewById(R.id.spacer);
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if (findViewById != null) {
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findViewById.setVisibility(z2 ? 8 : 4);
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}
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for (int childCount = getChildCount() - 2; childCount >= 0; childCount--) {
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bringChildToFront(getChildAt(childCount));
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}
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}
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@Override // android.view.View
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public int getMinimumHeight() {
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return Math.max(this.mMinimumHeight, super.getMinimumHeight());
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}
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@Override // android.widget.LinearLayout, android.view.View
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public void onMeasure(int i, int i2) {
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boolean z2;
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int i3;
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int size = View.MeasureSpec.getSize(i);
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int i4 = 0;
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if (this.mAllowStacking) {
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if (size > this.mLastWidthSize && isStacked()) {
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setStacked(false);
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}
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this.mLastWidthSize = size;
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}
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if (isStacked() || View.MeasureSpec.getMode(i) != 1073741824) {
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i3 = i;
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z2 = false;
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} else {
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i3 = View.MeasureSpec.makeMeasureSpec(size, Integer.MIN_VALUE);
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z2 = true;
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}
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super.onMeasure(i3, i2);
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if (this.mAllowStacking && !isStacked()) {
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if ((getMeasuredWidthAndState() & ViewCompat.MEASURED_STATE_MASK) == 16777216) {
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setStacked(true);
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z2 = true;
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}
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}
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if (z2) {
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super.onMeasure(i, i2);
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}
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int nextVisibleChildIndex = getNextVisibleChildIndex(0);
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if (nextVisibleChildIndex >= 0) {
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View childAt = getChildAt(nextVisibleChildIndex);
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LinearLayout.LayoutParams layoutParams = (LinearLayout.LayoutParams) childAt.getLayoutParams();
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int measuredHeight = childAt.getMeasuredHeight() + getPaddingTop() + layoutParams.topMargin + layoutParams.bottomMargin + 0;
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if (isStacked()) {
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int nextVisibleChildIndex2 = getNextVisibleChildIndex(nextVisibleChildIndex + 1);
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i4 = nextVisibleChildIndex2 >= 0 ? getChildAt(nextVisibleChildIndex2).getPaddingTop() + ((int) (getResources().getDisplayMetrics().density * 16.0f)) + measuredHeight : measuredHeight;
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} else {
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i4 = getPaddingBottom() + measuredHeight;
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}
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}
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if (ViewCompat.getMinimumHeight(this) != i4) {
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setMinimumHeight(i4);
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}
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}
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public void setAllowStacking(boolean z2) {
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if (this.mAllowStacking != z2) {
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this.mAllowStacking = z2;
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if (!z2 && getOrientation() == 1) {
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setStacked(false);
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}
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requestLayout();
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}
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}
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}
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