private void initPaintShadow() {
if (highContrast && needsShadow(color)) {
paint.setShadowLayer(
applyDimension(
COMPLEX_UNIT_DIP, SHADOW_RADIUS_DPS, view.getResources().getDisplayMetrics()),
0,
0,
BLACK);
} else {
paint.setShadowLayer(0, 0, 0, BLACK);
}
}
/** Initializes resources */
private void initResourcesIfNecessary() {
if (itemsPaint == null) {
itemsPaint = new TextPaint(Paint.ANTI_ALIAS_FLAG | Paint.FAKE_BOLD_TEXT_FLAG);
// itemsPaint.density = getResources().getDisplayMetrics().density;
itemsPaint.setTextSize(TEXT_SIZE);
}
if (valuePaint == null) {
valuePaint =
new TextPaint(Paint.ANTI_ALIAS_FLAG | Paint.FAKE_BOLD_TEXT_FLAG | Paint.DITHER_FLAG);
// valuePaint.density = getResources().getDisplayMetrics().density;
valuePaint.setTextSize(TEXT_SIZE);
valuePaint.setShadowLayer(0.1f, 0, 0.1f, 0xFFC0C0C0);
}
if (centerDrawable == null) {
centerDrawable = getContext().getResources().getDrawable(R.drawable.wheel_val);
}
if (topShadow == null) {
topShadow = new GradientDrawable(Orientation.TOP_BOTTOM, SHADOWS_COLORS);
}
if (bottomShadow == null) {
bottomShadow = new GradientDrawable(Orientation.BOTTOM_TOP, SHADOWS_COLORS);
}
setBackgroundResource(R.drawable.wheel_bg);
}
private void init() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
setLayerType(LAYER_TYPE_SOFTWARE, null);
} else {
setDrawingCacheEnabled(true);
}
boolean hasShot =
getContext()
.getSharedPreferences(PREFS_SHOWCASE_INTERNAL, Context.MODE_PRIVATE)
.getBoolean("hasShot" + getConfigOptions().showcaseId, false);
if (hasShot && mOptions.shotType == TYPE_ONE_SHOT) {
// The showcase has already been shot once, so we don't need to do anything
setVisibility(View.GONE);
isRedundant = true;
return;
}
showcase = getContext().getResources().getDrawable(R.drawable.cling);
showcaseRadius = metricScale * INNER_CIRCLE_RADIUS;
PorterDuffXfermode mBlender = new PorterDuffXfermode(PorterDuff.Mode.MULTIPLY);
setOnTouchListener(this);
mPaintTitle = new Paint();
mPaintTitle.setColor(titleTextColor);
mPaintTitle.setShadowLayer(2.0f, 0f, 2.0f, Color.DKGRAY);
mPaintTitle.setTextSize(24 * metricScale);
mPaintTitle.setAntiAlias(true);
mPaintDetail = new TextPaint();
mPaintDetail.setColor(detailTextColor);
mPaintDetail.setShadowLayer(2.0f, 0f, 2.0f, Color.DKGRAY);
mPaintDetail.setTextSize(16 * metricScale);
mPaintDetail.setAntiAlias(true);
mEraser = new Paint();
mEraser.setColor(0xFFFFFF);
mEraser.setAlpha(0);
mEraser.setXfermode(mBlender);
mEraser.setAntiAlias(true);
if (!mOptions.noButton && mEndButton.getParent() == null) {
RelativeLayout.LayoutParams lps = (LayoutParams) generateDefaultLayoutParams();
lps.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM);
lps.addRule(RelativeLayout.ALIGN_PARENT_RIGHT);
int margin = ((Number) (metricScale * 12)).intValue();
lps.setMargins(margin, margin, margin, margin);
lps.height = LayoutParams.WRAP_CONTENT;
lps.width = LayoutParams.WRAP_CONTENT;
mEndButton.setLayoutParams(lps);
mEndButton.setText(buttonText != null ? buttonText : getResources().getString(R.string.ok));
if (!hasCustomClickListener) mEndButton.setOnClickListener(this);
addView(mEndButton);
}
}
/** Initializes resources */
private void initResourcesIfNecessary() {
if (itemsPaint == null) {
itemsPaint = new TextPaint(Paint.ANTI_ALIAS_FLAG | Paint.FAKE_BOLD_TEXT_FLAG);
itemsPaint.setTextSize(TEXT_SIZE);
}
if (valuePaint == null) {
valuePaint =
new TextPaint(Paint.ANTI_ALIAS_FLAG | Paint.FAKE_BOLD_TEXT_FLAG | Paint.DITHER_FLAG);
valuePaint.setTextSize(TEXT_SIZE);
valuePaint.setShadowLayer(0.1f, 0, 0.1f, 0xFFC0C0C0);
}
// if (centerDrawable == null) {
// centerDrawable =
// getContext().getResources().getDrawable(R.drawable.wheel_val);
// }
}
private void invalidateLabelTemplate() {
if (mLabelTemplateRes != 0) {
final CharSequence template = getResources().getText(mLabelTemplateRes);
final TextPaint paint = new TextPaint(Paint.ANTI_ALIAS_FLAG);
paint.density = getResources().getDisplayMetrics().density;
paint.setCompatibilityScaling(getResources().getCompatibilityInfo().applicationScale);
paint.setColor(mLabelColor);
paint.setShadowLayer(4 * paint.density, 0, 0, Color.BLACK);
mLabelTemplate = new SpannableStringBuilder(template);
mLabelLayout =
new DynamicLayout(
mLabelTemplate, paint, LARGE_WIDTH, Alignment.ALIGN_RIGHT, 1f, 0f, false);
invalidateLabel();
} else {
mLabelTemplate = null;
mLabelLayout = null;
}
invalidate();
requestLayout();
}
private void drawText(Canvas canvas, Bitmap bitmap, int percent, Boolean isShort) {
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
Boolean isGradient = prefs.getBoolean("gradientKey", true);
int size = 0;
int smallDummyHeight = 0;
while (smallDummyHeight < ((bitmap.getHeight() / 100) * percent)) {
TextPaint paintText = new TextPaint(Paint.ANTI_ALIAS_FLAG);
size = size + 1;
paintText.setTextSize(size);
paintText.setStyle(Paint.Style.FILL_AND_STROKE);
paintText.setShadowLayer(3f, 3f, 3f, Color.BLACK);
Rect smallDummyRect = new Rect();
paintText.getTextBounds(gagTitle, 0, gagTitle.length(), smallDummyRect);
smallDummyHeight = smallDummyRect.height();
}
int pL = bitmap.getWidth() / 100;
int pT = bitmap.getHeight() / 100;
if (isShort) {
TextPaint paintText = new TextPaint(Paint.ANTI_ALIAS_FLAG);
paintText.setColor(Color.WHITE);
paintText.setTextSize(size);
paintText.setStyle(Paint.Style.FILL_AND_STROKE);
paintText.setShadowLayer(3f, 3f, 3f, Color.BLACK);
Rect rectText = new Rect();
paintText.getTextBounds(gagTitle, 0, gagTitle.length(), rectText);
if (isGradient) {
int GRADIENT_HEIGHT = rectText.height();
Paint paint = new Paint();
LinearGradient shader =
new LinearGradient(
0, 0, 0, GRADIENT_HEIGHT, Color.BLACK, Color.TRANSPARENT, Shader.TileMode.CLAMP);
paint.setShader(shader);
canvas.drawRect(0, 0, newBitmap.getWidth(), GRADIENT_HEIGHT, paint);
}
canvas.drawText(gagTitle, pL, rectText.height() + (3 * pT) / 2, paintText);
} else {
TextPaint paintText = new TextPaint(Paint.ANTI_ALIAS_FLAG);
paintText.setColor(Color.WHITE);
paintText.setTextSize(size);
paintText.setStyle(Paint.Style.FILL_AND_STROKE);
paintText.setShadowLayer(3f, 3f, 3f, Color.BLACK);
StaticLayout mTextLayout =
new StaticLayout(
gagTitle,
paintText,
canvas.getWidth(),
Layout.Alignment.ALIGN_NORMAL,
1.0f,
0.0f,
false);
if (isGradient) {
int GRADIENT_HEIGHT = mTextLayout.getHeight();
Paint paint = new Paint();
LinearGradient shader =
new LinearGradient(
0, 0, 0, GRADIENT_HEIGHT, Color.BLACK, Color.TRANSPARENT, Shader.TileMode.CLAMP);
paint.setShader(shader);
canvas.drawRect(0, 0, newBitmap.getWidth(), GRADIENT_HEIGHT, paint);
}
canvas.save();
canvas.translate(pL, pT);
mTextLayout.draw(canvas);
canvas.restore();
}
}
/** Initializes resources. */
private void initResourcesIfNecessary() {
if (itemsPaint == null) {
itemsPaint = new TextPaint(Paint.ANTI_ALIAS_FLAG | Paint.FAKE_BOLD_TEXT_FLAG);
// itemsPaint.density = getResources().getDisplayMetrics().density;
itemsPaint.setTextSize(valueTextSize);
}
if (valuePaint == null) {
valuePaint =
new TextPaint(Paint.ANTI_ALIAS_FLAG | Paint.FAKE_BOLD_TEXT_FLAG | Paint.DITHER_FLAG);
// valuePaint.density = getResources().getDisplayMetrics().density;
valuePaint.setTextSize(valueTextSize);
}
if (labelPaint == null) {
labelPaint =
new TextPaint(Paint.ANTI_ALIAS_FLAG | Paint.FAKE_BOLD_TEXT_FLAG | Paint.DITHER_FLAG);
labelPaint.setTextSize(labelTextSize);
// 设置阴影
labelPaint.setShadowLayer(0.5f, 0, 1, 0xFFFFFFFF);
}
// 如果没设置中间的选中条用默认的颜色
if (centerSelectDrawable == null) {
GradientDrawable mGradientDrawable =
new GradientDrawable(Orientation.BOTTOM_TOP, centerSelectGradientColors);
mGradientDrawable.setStroke(centerSelectStrokeWidth, centerSelectStrokeColor);
centerSelectDrawable = mGradientDrawable;
}
/* Android中提供了Shader类专门用来渲染图像以及一些几何图形，
Shader下面包括几个直接子类，分别是BitmapShader、 ComposeShader、LinearGradient、
RadialGradient、SweepGradient。 BitmapShader主要用来渲染图像，
LinearGradient 用来进行梯度渲染，RadialGradient 用来进行环形渲染，
SweepGradient
用来进行梯度渲染，ComposeShader则是一个 混合渲染，可以和其它几个子类组合起来使用。 */
// 上边界渐变层
if (topShadow == null) {
topShadow = new GradientDrawable(Orientation.TOP_BOTTOM, SHADOWS_COLORS);
}
// 下边界渐变层
if (bottomShadow == null) {
bottomShadow = new GradientDrawable(Orientation.BOTTOM_TOP, SHADOWS_COLORS);
}
if (this.getBackground() == null) {
// 原来用颜色渐变实现setBackgroundDrawable(layerDrawable);
// 底部的颜色
GradientDrawable mGradientDrawable1 =
new GradientDrawable(Orientation.TOP_BOTTOM, topGradientColors);
GradientDrawable mGradientDrawable2 =
new GradientDrawable(Orientation.BOTTOM_TOP, bottomGradientColors);
mGradientDrawable1.setStroke(topStrokeWidth, topStrokeColor);
mGradientDrawable1.setShape(GradientDrawable.RECTANGLE);
mGradientDrawable2.setShape(GradientDrawable.RECTANGLE);
mGradientDrawable1.setGradientType(GradientDrawable.LINEAR_GRADIENT);
mGradientDrawable2.setGradientType(GradientDrawable.LINEAR_GRADIENT);
GradientDrawable[] mDrawables = new GradientDrawable[2];
mDrawables[0] = mGradientDrawable1;
mDrawables[1] = mGradientDrawable2;
LayerDrawable layerDrawable = new LayerDrawable(mDrawables);
layerDrawable.setLayerInset(0, 0, 0, 0, 0); // 第一个参数0代表数组的第1个元素
layerDrawable.setLayerInset(1, 4, 1, 4, 1); // 第一个参数1代表数组的第2个元素
setBackgroundDrawable(layerDrawable);
}
}
public BatteryHistoryChart(Context context, AttributeSet attrs) {
super(context, attrs);
mBatteryBackgroundPaint.setARGB(255, 128, 128, 128);
mBatteryBackgroundPaint.setStyle(Paint.Style.FILL);
mBatteryGoodPaint.setARGB(128, 0, 255, 0);
mBatteryGoodPaint.setStyle(Paint.Style.STROKE);
mBatteryWarnPaint.setARGB(128, 255, 255, 0);
mBatteryWarnPaint.setStyle(Paint.Style.STROKE);
mBatteryCriticalPaint.setARGB(192, 255, 0, 0);
mBatteryCriticalPaint.setStyle(Paint.Style.STROKE);
mChargingPaint.setARGB(255, 0, 128, 0);
mChargingPaint.setStyle(Paint.Style.STROKE);
mScreenOnPaint.setStyle(Paint.Style.STROKE);
mGpsOnPaint.setStyle(Paint.Style.STROKE);
mWifiRunningPaint.setStyle(Paint.Style.STROKE);
mWakeLockPaint.setStyle(Paint.Style.STROKE);
mPhoneSignalChart.setColors(
new int[] {
0x00000000, 0xffa00000, 0xffa0a000, 0xff808020, 0xff808040, 0xff808060, 0xff008000
});
mTextPaint.density = getResources().getDisplayMetrics().density;
mTextPaint.setCompatibilityScaling(getResources().getCompatibilityInfo().applicationScale);
TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.BatteryHistoryChart, 0, 0);
ColorStateList textColor = null;
int textSize = 15;
int typefaceIndex = -1;
int styleIndex = -1;
TypedArray appearance = null;
int ap = a.getResourceId(R.styleable.BatteryHistoryChart_android_textAppearance, -1);
if (ap != -1) {
appearance =
context.obtainStyledAttributes(ap, com.android.internal.R.styleable.TextAppearance);
}
if (appearance != null) {
int n = appearance.getIndexCount();
for (int i = 0; i < n; i++) {
int attr = appearance.getIndex(i);
switch (attr) {
case com.android.internal.R.styleable.TextAppearance_textColor:
textColor = appearance.getColorStateList(attr);
break;
case com.android.internal.R.styleable.TextAppearance_textSize:
textSize = appearance.getDimensionPixelSize(attr, textSize);
break;
case com.android.internal.R.styleable.TextAppearance_typeface:
typefaceIndex = appearance.getInt(attr, -1);
break;
case com.android.internal.R.styleable.TextAppearance_textStyle:
styleIndex = appearance.getInt(attr, -1);
break;
}
}
appearance.recycle();
}
int shadowcolor = 0;
float dx = 0, dy = 0, r = 0;
int n = a.getIndexCount();
for (int i = 0; i < n; i++) {
int attr = a.getIndex(i);
switch (attr) {
case R.styleable.BatteryHistoryChart_android_shadowColor:
shadowcolor = a.getInt(attr, 0);
break;
case R.styleable.BatteryHistoryChart_android_shadowDx:
dx = a.getFloat(attr, 0);
break;
case R.styleable.BatteryHistoryChart_android_shadowDy:
dy = a.getFloat(attr, 0);
break;
case R.styleable.BatteryHistoryChart_android_shadowRadius:
r = a.getFloat(attr, 0);
break;
case R.styleable.BatteryHistoryChart_android_textColor:
textColor = a.getColorStateList(attr);
break;
case R.styleable.BatteryHistoryChart_android_textSize:
textSize = a.getDimensionPixelSize(attr, textSize);
break;
case R.styleable.BatteryHistoryChart_android_typeface:
typefaceIndex = a.getInt(attr, typefaceIndex);
break;
case R.styleable.BatteryHistoryChart_android_textStyle:
styleIndex = a.getInt(attr, styleIndex);
break;
}
}
a.recycle();
mTextPaint.setColor(textColor.getDefaultColor());
mTextPaint.setTextSize(textSize);
Typeface tf = null;
switch (typefaceIndex) {
case SANS:
tf = Typeface.SANS_SERIF;
break;
case SERIF:
tf = Typeface.SERIF;
break;
case MONOSPACE:
tf = Typeface.MONOSPACE;
break;
}
setTypeface(tf, styleIndex);
if (shadowcolor != 0) {
mTextPaint.setShadowLayer(r, dx, dy, shadowcolor);
}
}