private Layout makeLabel(CharSequence text) {
final Resources res = getResources();
final TextPaint paint = new TextPaint(Paint.ANTI_ALIAS_FLAG);
paint.density = res.getDisplayMetrics().density;
paint.setCompatibilityScaling(res.getCompatibilityInfo().applicationScale);
paint.setColor(mLabelColor);
paint.setTextSize(mLabelSize);
return new StaticLayout(
text,
paint,
(int) Math.ceil(Layout.getDesiredWidth(text, paint)),
Layout.Alignment.ALIGN_NORMAL,
1.f,
0,
true);
}
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();
}
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);
}
}