133 lines
5.3 KiB
Java
133 lines
5.3 KiB
Java
package androidx.constraintlayout.widget;
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import android.content.Context;
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import android.content.res.TypedArray;
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import android.graphics.Canvas;
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import android.graphics.Paint;
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import android.graphics.Rect;
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import android.graphics.Typeface;
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import android.util.AttributeSet;
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import android.view.View;
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import androidx.constraintlayout.solver.widgets.ConstraintWidget;
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import androidx.constraintlayout.widget.ConstraintLayout;
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public class Placeholder extends View {
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private View mContent = null;
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private int mContentId = -1;
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private int mEmptyVisibility = 4;
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public Placeholder(Context context) {
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super(context);
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init(null);
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}
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public Placeholder(Context context, AttributeSet attributeSet) {
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super(context, attributeSet);
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init(attributeSet);
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}
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public Placeholder(Context context, AttributeSet attributeSet, int i) {
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super(context, attributeSet, i);
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init(attributeSet);
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}
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public Placeholder(Context context, AttributeSet attributeSet, int i, int i2) {
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super(context, attributeSet, i);
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init(attributeSet);
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}
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private void init(AttributeSet attributeSet) {
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super.setVisibility(this.mEmptyVisibility);
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this.mContentId = -1;
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if (attributeSet != null) {
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TypedArray obtainStyledAttributes = getContext().obtainStyledAttributes(attributeSet, R.styleable.ConstraintLayout_placeholder);
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int indexCount = obtainStyledAttributes.getIndexCount();
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for (int i = 0; i < indexCount; i++) {
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int index = obtainStyledAttributes.getIndex(i);
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if (index == R.styleable.ConstraintLayout_placeholder_content) {
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this.mContentId = obtainStyledAttributes.getResourceId(index, this.mContentId);
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} else if (index == R.styleable.ConstraintLayout_placeholder_placeholder_emptyVisibility) {
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this.mEmptyVisibility = obtainStyledAttributes.getInt(index, this.mEmptyVisibility);
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}
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}
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obtainStyledAttributes.recycle();
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}
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}
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public View getContent() {
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return this.mContent;
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}
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public int getEmptyVisibility() {
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return this.mEmptyVisibility;
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}
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@Override // android.view.View
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public void onDraw(Canvas canvas) {
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if (isInEditMode()) {
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canvas.drawRGB(223, 223, 223);
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Paint paint = new Paint();
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paint.setARGB(255, 210, 210, 210);
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paint.setTextAlign(Paint.Align.CENTER);
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paint.setTypeface(Typeface.create(Typeface.DEFAULT, 0));
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Rect rect = new Rect();
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canvas.getClipBounds(rect);
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paint.setTextSize((float) rect.height());
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int height = rect.height();
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int width = rect.width();
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paint.setTextAlign(Paint.Align.LEFT);
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paint.getTextBounds("?", 0, 1, rect);
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canvas.drawText("?", ((((float) width) / 2.0f) - (((float) rect.width()) / 2.0f)) - ((float) rect.left), ((((float) rect.height()) / 2.0f) + (((float) height) / 2.0f)) - ((float) rect.bottom), paint);
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}
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}
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public void setContentId(int i) {
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View findViewById;
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if (this.mContentId != i) {
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View view = this.mContent;
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if (view != null) {
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view.setVisibility(0);
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((ConstraintLayout.LayoutParams) this.mContent.getLayoutParams()).isInPlaceholder = false;
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this.mContent = null;
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}
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this.mContentId = i;
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if (i != -1 && (findViewById = ((View) getParent()).findViewById(i)) != null) {
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findViewById.setVisibility(8);
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}
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}
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}
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public void setEmptyVisibility(int i) {
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this.mEmptyVisibility = i;
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}
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public void updatePostMeasure(ConstraintLayout constraintLayout) {
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if (this.mContent != null) {
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ConstraintLayout.LayoutParams layoutParams = (ConstraintLayout.LayoutParams) getLayoutParams();
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ConstraintLayout.LayoutParams layoutParams2 = (ConstraintLayout.LayoutParams) this.mContent.getLayoutParams();
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layoutParams2.widget.setVisibility(0);
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ConstraintWidget.DimensionBehaviour horizontalDimensionBehaviour = layoutParams.widget.getHorizontalDimensionBehaviour();
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ConstraintWidget.DimensionBehaviour dimensionBehaviour = ConstraintWidget.DimensionBehaviour.FIXED;
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if (horizontalDimensionBehaviour != dimensionBehaviour) {
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layoutParams.widget.setWidth(layoutParams2.widget.getWidth());
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}
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if (layoutParams.widget.getVerticalDimensionBehaviour() != dimensionBehaviour) {
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layoutParams.widget.setHeight(layoutParams2.widget.getHeight());
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}
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layoutParams2.widget.setVisibility(8);
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}
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}
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public void updatePreLayout(ConstraintLayout constraintLayout) {
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if (this.mContentId == -1 && !isInEditMode()) {
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setVisibility(this.mEmptyVisibility);
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}
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View findViewById = constraintLayout.findViewById(this.mContentId);
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this.mContent = findViewById;
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if (findViewById != null) {
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((ConstraintLayout.LayoutParams) findViewById.getLayoutParams()).isInPlaceholder = true;
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this.mContent.setVisibility(0);
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setVisibility(0);
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}
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}
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}
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