| /* |
| * 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); |
| |
| |
| // Use Theme attributes if possible |
| final TypedArray a = mContext.obtainStyledAttributes(attrs, |
| R.styleable.DatePicker, defStyleAttr, defStyleRes); |
| final int resId = a.getResourceId(R.styleable.DatePicker_yearListItemTextAppearance, -1); |
| if (resId != -1) { |
| setTextAppearance(context, resId); |
| } |
| |
| final Resources res = context.getResources(); |
| 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; |
| } |
| } |
| } |