मैंने रूपरेखा के साथ पाठ करने के लिए एक वर्ग लिखा है और अभी भी सामान्य पाठ दृश्य के अन्य सभी विशेषताओं और ड्राइंग का समर्थन करता हूं।
यह मूल रूप से उपयोग करता है super.onDraw(Canves canvas)पर TextViewलेकिन विभिन्न शैलियों के साथ दो बार खींचता है।
उम्मीद है की यह मदद करेगा।
public class TextViewOutline extends TextView {
private static final int DEFAULT_OUTLINE_SIZE = 0;
private static final int DEFAULT_OUTLINE_COLOR = Color.TRANSPARENT;
private int mOutlineSize;
private int mOutlineColor;
private int mTextColor;
private float mShadowRadius;
private float mShadowDx;
private float mShadowDy;
private int mShadowColor;
public TextViewOutline(Context context) {
this(context, null);
}
public TextViewOutline(Context context, AttributeSet attrs) {
super(context, attrs);
setAttributes(attrs);
}
private void setAttributes(AttributeSet attrs){
mOutlineSize = DEFAULT_OUTLINE_SIZE;
mOutlineColor = DEFAULT_OUTLINE_COLOR;
mTextColor = getCurrentTextColor();
if(attrs != null) {
TypedArray a = getContext().obtainStyledAttributes(attrs,R.styleable.TextViewOutline);
if (a.hasValue(R.styleable.TextViewOutline_outlineSize)) {
mOutlineSize = (int) a.getDimension(R.styleable.TextViewOutline_outlineSize, DEFAULT_OUTLINE_SIZE);
}
if (a.hasValue(R.styleable.TextViewOutline_outlineColor)) {
mOutlineColor = a.getColor(R.styleable.TextViewOutline_outlineColor, DEFAULT_OUTLINE_COLOR);
}
if (a.hasValue(R.styleable.TextViewOutline_android_shadowRadius)
|| a.hasValue(R.styleable.TextViewOutline_android_shadowDx)
|| a.hasValue(R.styleable.TextViewOutline_android_shadowDy)
|| a.hasValue(R.styleable.TextViewOutline_android_shadowColor)) {
mShadowRadius = a.getFloat(R.styleable.TextViewOutline_android_shadowRadius, 0);
mShadowDx = a.getFloat(R.styleable.TextViewOutline_android_shadowDx, 0);
mShadowDy = a.getFloat(R.styleable.TextViewOutline_android_shadowDy, 0);
mShadowColor = a.getColor(R.styleable.TextViewOutline_android_shadowColor, Color.TRANSPARENT);
}
a.recycle();
}
PFLog.d("mOutlineSize = " + mOutlineSize);
PFLog.d("mOutlineColor = " + mOutlineColor);
}
private void setPaintToOutline(){
Paint paint = getPaint();
paint.setStyle(Paint.Style.STROKE);
paint.setStrokeWidth(mOutlineSize);
super.setTextColor(mOutlineColor);
super.setShadowLayer(mShadowRadius, mShadowDx, mShadowDy, mShadowColor);
}
private void setPaintToRegular() {
Paint paint = getPaint();
paint.setStyle(Paint.Style.FILL);
paint.setStrokeWidth(0);
super.setTextColor(mTextColor);
super.setShadowLayer(0, 0, 0, Color.TRANSPARENT);
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
setPaintToOutline();
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}
@Override
public void setTextColor(int color) {
super.setTextColor(color);
mTextColor = color;
}
@Override
public void setShadowLayer(float radius, float dx, float dy, int color) {
super.setShadowLayer(radius, dx, dy, color);
mShadowRadius = radius;
mShadowDx = dx;
mShadowDy = dy;
mShadowColor = color;
}
public void setOutlineSize(int size){
mOutlineSize = size;
}
public void setOutlineColor(int color){
mOutlineColor = color;
}
@Override
protected void onDraw(Canvas canvas) {
setPaintToOutline();
super.onDraw(canvas);
setPaintToRegular();
super.onDraw(canvas);
}
}
attr.xml
<declare-styleable name="TextViewOutline">
<attr name="outlineSize" format="dimension"/>
<attr name="outlineColor" format="color|reference"/>
<attr name="android:shadowRadius"/>
<attr name="android:shadowDx"/>
<attr name="android:shadowDy"/>
<attr name="android:shadowColor"/>
</declare-styleable>
