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Diffstat (limited to 'core/java/android/widget/TextViewWithCircularIndicator.java')
-rw-r--r-- | core/java/android/widget/TextViewWithCircularIndicator.java | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/core/java/android/widget/TextViewWithCircularIndicator.java b/core/java/android/widget/TextViewWithCircularIndicator.java new file mode 100644 index 0000000..22d770c --- /dev/null +++ b/core/java/android/widget/TextViewWithCircularIndicator.java @@ -0,0 +1,114 @@ +/* + * Copyright (C) 2014 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 android.widget; + +import android.content.Context; +import android.content.res.Resources; +import android.content.res.TypedArray; +import android.graphics.Canvas; +import android.graphics.Paint; +import android.graphics.Typeface; +import android.util.AttributeSet; + +import com.android.internal.R; + +class TextViewWithCircularIndicator extends TextView { + + private static final int SELECTED_CIRCLE_ALPHA = 60; + + private final Paint mCirclePaint = new Paint(); + + private final String mItemIsSelectedText; + private int mCircleColor; + private boolean mDrawIndicator; + + public TextViewWithCircularIndicator(Context context) { + this(context, null); + } + + public TextViewWithCircularIndicator(Context context, AttributeSet attrs) { + this(context, attrs, 0); + } + + public TextViewWithCircularIndicator(Context context, AttributeSet attrs, int defStyleAttr) { + this(context, attrs, defStyleAttr, 0); + } + + public TextViewWithCircularIndicator(Context context, AttributeSet attrs, + int defStyleAttr, int defStyleRes) { + + super(context, attrs); + Resources res = context.getResources(); + + // Use Theme attributes if possible + final TypedArray a = mContext.obtainStyledAttributes(attrs, + R.styleable.DatePicker, defStyleAttr, defStyleRes); + + final int resId = a.getResourceId( + R.styleable.DatePicker_dateSelectorYearListItemTextAppearance, -1); + if (resId != -1) { + setTextAppearance(context, resId); + } + + mItemIsSelectedText = res.getString(R.string.item_is_selected); + + a.recycle(); + + init(); + } + + private void init() { + mCirclePaint.setTypeface(Typeface.create(mCirclePaint.getTypeface(), Typeface.BOLD)); + mCirclePaint.setAntiAlias(true); + mCirclePaint.setTextAlign(Paint.Align.CENTER); + mCirclePaint.setStyle(Paint.Style.FILL); + } + + public void setCircleColor(int color) { + if (color != mCircleColor) { + mCircleColor = color; + mCirclePaint.setColor(mCircleColor); + mCirclePaint.setAlpha(SELECTED_CIRCLE_ALPHA); + requestLayout(); + } + } + + public void setDrawIndicator(boolean drawIndicator) { + mDrawIndicator = drawIndicator; + } + + @Override + public void onDraw(Canvas canvas) { + super.onDraw(canvas); + if (mDrawIndicator) { + final int width = getWidth(); + final int height = getHeight(); + int radius = Math.min(width, height) / 2; + canvas.drawCircle(width / 2, height / 2, radius, mCirclePaint); + } + } + + @Override + public CharSequence getContentDescription() { + CharSequence itemText = getText(); + if (mDrawIndicator) { + return String.format(mItemIsSelectedText, itemText); + } else { + return itemText; + } + } +}
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