下面列出了android.widget.TextView#getTransformationMethod ( ) 实例代码,或者点击链接到github查看源代码,也可以在右侧发表评论。
@Override
protected boolean matchesSafely(TextView textView) {
String text = textView.getText().toString();
// The reason we try to match both original text and the transformated one is because some UI
// elements may inherit a default theme which behave differently for SDK below 19 and above.
// So it is implemented in a backwards compatible way.
if (stringMatcher.matches(text)) {
return true;
} else if (textView.getTransformationMethod() != null) {
CharSequence transformedText =
textView.getTransformationMethod().getTransformation(text, textView);
if (transformedText != null) {
return stringMatcher.matches(transformedText.toString());
}
}
return false;
}
private static int getMaxLines(TextView view) {
int maxLines = -1; // No limit (Integer.MAX_VALUE also means no limit)
TransformationMethod method = view.getTransformationMethod();
if (method != null && method instanceof SingleLineTransformationMethod) {
maxLines = 1;
}
else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
// setMaxLines() and getMaxLines() are only available on android-16+
maxLines = view.getMaxLines();
}
return maxLines;
}
static int getMaxLines(TextView view) {
int maxLines = -1; // No limit (Integer.MAX_VALUE also means no limit)
TransformationMethod method = view.getTransformationMethod();
if (method != null && method instanceof SingleLineTransformationMethod) {
maxLines = 1;
} else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
// setMaxLines() and getMaxLines() are only available on android-16+
maxLines = view.getMaxLines();
}
return maxLines;
}
private static int getMaxLines(TextView view) {
int maxLines = -1; // No limit (Integer.MAX_VALUE also means no limit)
TransformationMethod method = view.getTransformationMethod();
if (method != null && method instanceof SingleLineTransformationMethod) {
maxLines = 1;
} else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
// setMaxLines() and getMaxLines() are only available on android-16+
maxLines = view.getMaxLines();
}
return maxLines;
}
/**
* Re-sizes the textSize of the TextView so that the text fits within the bounds of the View.
*/
private static void autofit(TextView view, TextPaint paint, float minTextSize, float maxTextSize,
int maxLines, float precision) {
if (maxLines <= 0 || maxLines == Integer.MAX_VALUE) {
// Don't auto-size since there's no limit on lines.
return;
}
int targetWidth = view.getWidth() - view.getPaddingLeft() - view.getPaddingRight();
if (targetWidth <= 0) {
return;
}
CharSequence text = view.getText();
TransformationMethod method = view.getTransformationMethod();
if (method != null) {
text = method.getTransformation(text, view);
}
Context context = view.getContext();
Resources r = Resources.getSystem();
DisplayMetrics displayMetrics;
float size = maxTextSize;
float high = size;
float low = 0;
if (context != null) {
r = context.getResources();
}
displayMetrics = r.getDisplayMetrics();
paint.set(view.getPaint());
paint.setTextSize(size);
if ((maxLines == 1 && paint.measureText(text, 0, text.length()) > targetWidth)
|| getLineCount(text, paint, size, targetWidth, displayMetrics) > maxLines) {
size = getAutofitTextSize(text, paint, targetWidth, maxLines, low, high, precision,
displayMetrics);
}
if (size < minTextSize) {
size = minTextSize;
}
view.setTextSize(TypedValue.COMPLEX_UNIT_PX, size);
}
/**
* Re-sizes the textSize of the TextView so that the text fits within the bounds of the View.
*/
static void adjustTextSize(TextView view, TextPaint paint, float minTextSize, float maxTextSize, int maxLines, float precision) {
if (maxLines <= 0 || maxLines == Integer.MAX_VALUE) {
// Don't auto-size since there's no limit on lines.
return;
}
int targetWidth = view.getWidth() - view.getPaddingLeft() - view.getPaddingRight();
if (targetWidth <= 0) {
return;
}
CharSequence text = view.getText();
TransformationMethod method = view.getTransformationMethod();
if (method != null) {
text = method.getTransformation(text, view);
}
Context context = view.getContext();
Resources r = Resources.getSystem();
DisplayMetrics displayMetrics;
float size = maxTextSize;
float high = size;
float low = 0;
if (context != null) {
r = context.getResources();
}
displayMetrics = r.getDisplayMetrics();
paint.set(view.getPaint());
paint.setTextSize(size);
if ((maxLines == 1 && paint.measureText(text, 0, text.length()) > targetWidth)
|| getLineCount(text, paint, size, targetWidth, displayMetrics) > maxLines) {
size = getAutofitTextSize(text, paint, targetWidth, maxLines, low, high, precision, displayMetrics);
}
if (size < minTextSize) {
size = minTextSize;
}
view.setTextSize(TypedValue.COMPLEX_UNIT_PX, size);
}
/**
* Re-sizes the textSize of the TextView so that the text fits within the bounds of the View.
*/
private static void autofit(TextView view, TextPaint paint, float minTextSize, float maxTextSize,
int maxLines, float precision) {
if (maxLines <= 0 || maxLines == Integer.MAX_VALUE) {
// Don't auto-size since there's no limit on lines.
return;
}
int targetWidth = view.getWidth() - view.getPaddingLeft() - view.getPaddingRight();
if (targetWidth <= 0) {
return;
}
CharSequence text = view.getText();
TransformationMethod method = view.getTransformationMethod();
if (method != null) {
text = method.getTransformation(text, view);
}
Context context = view.getContext();
Resources r = Resources.getSystem();
DisplayMetrics displayMetrics;
float size = maxTextSize;
float high = size;
float low = 0;
if (context != null) {
r = context.getResources();
}
displayMetrics = r.getDisplayMetrics();
paint.set(view.getPaint());
paint.setTextSize(size);
if ((maxLines == 1 && paint.measureText(text, 0, text.length()) > targetWidth)
|| getLineCount(text, paint, size, targetWidth, displayMetrics) > maxLines) {
size = getAutofitTextSize(text, paint, targetWidth, maxLines, low, high, precision,
displayMetrics);
}
if (size < minTextSize) {
size = minTextSize;
}
view.setTextSize(TypedValue.COMPLEX_UNIT_PX, size);
}