ADD week 5

2025-03-31 16:33:42 +02:00
parent 86f265f22d
commit bf645048e6
4927 changed files with 544053 additions and 0 deletions
--- a/02-Easy5/E5/sources/androidx/constraintlayout/widget/Placeholder.java
+++ b/02-Easy5/E5/sources/androidx/constraintlayout/widget/Placeholder.java
@@ -0,0 +1,147 @@
+package androidx.constraintlayout.widget;
+
+import android.content.Context;
+import android.content.res.TypedArray;
+import android.graphics.Canvas;
+import android.graphics.Paint;
+import android.graphics.Rect;
+import android.graphics.Typeface;
+import android.util.AttributeSet;
+import android.view.View;
+import androidx.constraintlayout.core.widgets.ConstraintWidget;
+import androidx.constraintlayout.widget.ConstraintLayout;
+
+/* loaded from: classes.dex */
+public class Placeholder extends View {
+    private View mContent;
+    private int mContentId;
+    private int mEmptyVisibility;
+
+    public View getContent() {
+        return this.mContent;
+    }
+
+    public int getEmptyVisibility() {
+        return this.mEmptyVisibility;
+    }
+
+    public void setEmptyVisibility(int visibility) {
+        this.mEmptyVisibility = visibility;
+    }
+
+    public Placeholder(Context context) {
+        super(context);
+        this.mContentId = -1;
+        this.mContent = null;
+        this.mEmptyVisibility = 4;
+        init(null);
+    }
+
+    public Placeholder(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        this.mContentId = -1;
+        this.mContent = null;
+        this.mEmptyVisibility = 4;
+        init(attrs);
+    }
+
+    public Placeholder(Context context, AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+        this.mContentId = -1;
+        this.mContent = null;
+        this.mEmptyVisibility = 4;
+        init(attrs);
+    }
+
+    public Placeholder(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
+        super(context, attrs, defStyleAttr);
+        this.mContentId = -1;
+        this.mContent = null;
+        this.mEmptyVisibility = 4;
+        init(attrs);
+    }
+
+    private void init(AttributeSet attrs) {
+        super.setVisibility(this.mEmptyVisibility);
+        this.mContentId = -1;
+        if (attrs != null) {
+            TypedArray obtainStyledAttributes = getContext().obtainStyledAttributes(attrs, R.styleable.ConstraintLayout_placeholder);
+            int indexCount = obtainStyledAttributes.getIndexCount();
+            for (int i = 0; i < indexCount; i++) {
+                int index = obtainStyledAttributes.getIndex(i);
+                if (index == R.styleable.ConstraintLayout_placeholder_content) {
+                    this.mContentId = obtainStyledAttributes.getResourceId(index, this.mContentId);
+                } else if (index == R.styleable.ConstraintLayout_placeholder_placeholder_emptyVisibility) {
+                    this.mEmptyVisibility = obtainStyledAttributes.getInt(index, this.mEmptyVisibility);
+                }
+            }
+            obtainStyledAttributes.recycle();
+        }
+    }
+
+    @Override // android.view.View
+    public void onDraw(Canvas canvas) {
+        if (isInEditMode()) {
+            canvas.drawRGB(223, 223, 223);
+            Paint paint = new Paint();
+            paint.setARGB(255, 210, 210, 210);
+            paint.setTextAlign(Paint.Align.CENTER);
+            paint.setTypeface(Typeface.create(Typeface.DEFAULT, 0));
+            Rect rect = new Rect();
+            canvas.getClipBounds(rect);
+            paint.setTextSize(rect.height());
+            int height = rect.height();
+            int width = rect.width();
+            paint.setTextAlign(Paint.Align.LEFT);
+            paint.getTextBounds("?", 0, 1, rect);
+            canvas.drawText("?", ((width / 2.0f) - (rect.width() / 2.0f)) - rect.left, ((height / 2.0f) + (rect.height() / 2.0f)) - rect.bottom, paint);
+        }
+    }
+
+    public void updatePreLayout(ConstraintLayout container) {
+        if (this.mContentId == -1 && !isInEditMode()) {
+            setVisibility(this.mEmptyVisibility);
+        }
+        View findViewById = container.findViewById(this.mContentId);
+        this.mContent = findViewById;
+        if (findViewById != null) {
+            ((ConstraintLayout.LayoutParams) findViewById.getLayoutParams()).isInPlaceholder = true;
+            this.mContent.setVisibility(0);
+            setVisibility(0);
+        }
+    }
+
+    public void setContentId(int id) {
+        View findViewById;
+        if (this.mContentId == id) {
+            return;
+        }
+        View view = this.mContent;
+        if (view != null) {
+            view.setVisibility(0);
+            ((ConstraintLayout.LayoutParams) this.mContent.getLayoutParams()).isInPlaceholder = false;
+            this.mContent = null;
+        }
+        this.mContentId = id;
+        if (id == -1 || (findViewById = ((View) getParent()).findViewById(id)) == null) {
+            return;
+        }
+        findViewById.setVisibility(8);
+    }
+
+    public void updatePostMeasure(ConstraintLayout container) {
+        if (this.mContent == null) {
+            return;
+        }
+        ConstraintLayout.LayoutParams layoutParams = (ConstraintLayout.LayoutParams) getLayoutParams();
+        ConstraintLayout.LayoutParams layoutParams2 = (ConstraintLayout.LayoutParams) this.mContent.getLayoutParams();
+        layoutParams2.widget.setVisibility(0);
+        if (layoutParams.widget.getHorizontalDimensionBehaviour() != ConstraintWidget.DimensionBehaviour.FIXED) {
+            layoutParams.widget.setWidth(layoutParams2.widget.getWidth());
+        }
+        if (layoutParams.widget.getVerticalDimensionBehaviour() != ConstraintWidget.DimensionBehaviour.FIXED) {
+            layoutParams.widget.setHeight(layoutParams2.widget.getHeight());
+        }
+        layoutParams2.widget.setVisibility(8);
+    }
+}