1 files changed, 102 insertions, 0 deletions
diff --git a/packages/SystemUI/src/com/android/keyguard/GradientTextClock.java b/packages/SystemUI/src/com/android/keyguard/GradientTextClock.java
new file mode 100644
index 000000000000..7cf1bd0b3e79
--- /dev/null
+++ b/packages/SystemUI/src/com/android/keyguard/GradientTextClock.java
@@ -0,0 +1,102 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.keyguard;
+
+import android.content.Context;
+import android.graphics.LinearGradient;
+import android.graphics.Shader;
+import android.util.AttributeSet;
+import android.widget.TextClock;
+
+/**
+ * Displays the time with the hour positioned above the minutes. (ie: 09 above 30 is 9:30)
+ * The time's text color is a gradient that changes its colors based on its controller.
+ */
+public class GradientTextClock extends TextClock {
+    private int[] mGradientColors;
+    private float[] mPositions;
+
+    public GradientTextClock(Context context) {
+        this(context, null, 0, 0);
+    }
+
+    public GradientTextClock(Context context, AttributeSet attrs) {
+        this(context, attrs, 0, 0);
+    }
+
+    public GradientTextClock(Context context, AttributeSet attrs, int defStyleAttr) {
+        this(context, attrs, defStyleAttr, 0);
+    }
+
+    public GradientTextClock(Context context, AttributeSet attrs, int defStyleAttr,
+            int defStyleRes) {
+        super(context, attrs, defStyleAttr, defStyleRes);
+    }
+
+    @Override
+    public void onAttachedToWindow() {
+        super.onAttachedToWindow();
+        addOnLayoutChangeListener(mOnLayoutChangeListener);
+    }
+
+    @Override
+    public void onDetachedFromWindow() {
+        super.onDetachedFromWindow();
+        removeOnLayoutChangeListener(mOnLayoutChangeListener);
+    }
+
+    @Override
+    public void refreshTime() {
+        super.refreshTime();
+    }
+
+    @Override
+    public void setFormat12Hour(CharSequence format) {
+        super.setFormat12Hour(FORMAT_12);
+    }
+
+    @Override
+    public void setFormat24Hour(CharSequence format) {
+        super.setFormat24Hour(FORMAT_24);
+    }
+
+    public void setGradientColors(int[] colors) {
+        mGradientColors = colors;
+        updatePaint();
+    }
+
+    public void setColorPositions(float[] positions) {
+        mPositions = positions;
+    }
+
+    private void updatePaint() {
+        getPaint().setShader(
+                new LinearGradient(
+                        getX(), getY(), getX(), getMeasuredHeight() + getY(),
+                        mGradientColors, mPositions, Shader.TileMode.REPEAT));
+    }
+
+    private final OnLayoutChangeListener mOnLayoutChangeListener =
+            (v, left, top, right, bottom, oldLeft, oldTop, oldRight, oldBottom) -> {
+                if (bottom != oldBottom || top != oldTop) {
+                    updatePaint();
+                }
+            };
+
+    public static final CharSequence FORMAT_12 = "hh\nmm";
+    public static final CharSequence FORMAT_24 = "HH\nmm";
+}