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Code Issues Releases Wiki Activity

Use measureText to get text width

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getTextBounds seems to return incorrect result, possibly due to
rounding errors, and makes a small part of the text to the right
disappear.
This commit is contained in:
Erik Johansson
2018-01-20 20:03:39 +01:00
parent 09b3069268
commit 3bceae364c
1 changed files with 5 additions and 9 deletions
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14
android_app/app/src/main/java/com/health/openscale/gui/views/LinearGaugeView.java
View File

@@ -98,17 +98,13 @@ public class LinearGaugeView extends View {
return getWidth() / 100.0f * percent; return getWidth() / 100.0f * percent;
} }
private void drawCenteredText(Canvas canvas, String text, float centerX, float y, private void drawCenteredText(Canvas canvas, String text, float centerX, float y, Paint paint) {
Paint paint, Rect textBounds) { final float textWidth = paint.measureText(text);
float x = Math.max(0.0f, centerX - textBounds.width() / 2.0f); float x = Math.max(0.0f, centerX - textWidth / 2.0f);
x = Math.min(x, getWidth() - textBounds.width()); x = Math.min(x, getWidth() - textWidth);
canvas.drawText(text, x, y, paint); canvas.drawText(text, x, y, paint);
} }
private void drawCenteredText(Canvas canvas, String text, float centerX, float y, Paint paint) {
paint.getTextBounds(text, 0, text.length(), bounds);
drawCenteredText(canvas, text, centerX, y, paint, bounds);
}
@Override @Override
protected void onDraw(Canvas canvas) { protected void onDraw(Canvas canvas) {
@@ -204,7 +200,7 @@ public class LinearGaugeView extends View {
String valueStr = String.format("%.2f", value); String valueStr = String.format("%.2f", value);
indicatorPaint.getTextBounds(valueStr, 0, valueStr.length(), bounds); indicatorPaint.getTextBounds(valueStr, 0, valueStr.length(), bounds);
drawCenteredText(canvas, valueStr, valuePos, drawCenteredText(canvas, valueStr, valuePos,
indicatorBottom + bounds.height() + textOffset, indicatorPaint, bounds); indicatorBottom + bounds.height() + textOffset, indicatorPaint);
} }
@Override @Override