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Preserve flag for signature #180

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Preserve flag for signature #180

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6f3e40e
preserve flag
shankar81 Mar 29, 2024
bbd9df2
preserve flag
shankar81 Mar 29, 2024
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17 changes: 17 additions & 0 deletions signature-pad/src/main/java/com/github/gcacace/signaturepad/views/SignaturePad.java
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Original file line number Diff line number Diff line change
Expand Up @@ -66,6 +66,8 @@ public class SignaturePad extends View {
private final int DEFAULT_ATTR_PEN_COLOR = Color.BLACK;
private final float DEFAULT_ATTR_VELOCITY_FILTER_WEIGHT = 0.9f;
private final boolean DEFAULT_ATTR_CLEAR_ON_DOUBLE_CLICK = false;
private final boolean DEFAULT_ATTR_PRESERVE = true;
private boolean mPreserve;

private Paint mPaint = new Paint();
private Bitmap mSignatureBitmap = null;
Expand All @@ -81,6 +83,7 @@ public SignaturePad(Context context, AttributeSet attrs) {

//Configurable parameters
try {
mPreserve = a.getBoolean(R.styleable.SignaturePad_preserve, DEFAULT_ATTR_PRESERVE);
mMinWidth = a.getDimensionPixelSize(R.styleable.SignaturePad_penMinWidth, convertDpToPx(DEFAULT_ATTR_PEN_MIN_WIDTH_PX));
mMaxWidth = a.getDimensionPixelSize(R.styleable.SignaturePad_penMaxWidth, convertDpToPx(DEFAULT_ATTR_PEN_MAX_WIDTH_PX));
mPaint.setColor(a.getColor(R.styleable.SignaturePad_penColor, DEFAULT_ATTR_PEN_COLOR));
Expand Down Expand Up @@ -111,6 +114,7 @@ public boolean onDoubleTap(MotionEvent e) {

@Override
protected Parcelable onSaveInstanceState() {
if (!mPreserve) return super.onSaveInstanceState();
try {
Bundle bundle = new Bundle();
bundle.putParcelable("superState", super.onSaveInstanceState());
Expand All @@ -127,6 +131,10 @@ protected Parcelable onSaveInstanceState() {

@Override
protected void onRestoreInstanceState(Parcelable state) {
if (!mPreserve) {
super.onRestoreInstanceState(state);
return;
}
if (state instanceof Bundle) {
Bundle bundle = (Bundle) state;
this.setSignatureBitmap((Bitmap) bundle.getParcelable("signatureBitmap"));
Expand All @@ -151,6 +159,15 @@ public void setPenColorRes(int colorRes) {
}
}

/**
* Set flag preserve true or false
*
* @param shouldPreserve if signature should be preserved when activity is destroyed.
*/
public void setPreserve(boolean shouldPreserve) {
mPreserve = shouldPreserve;
}

/**
* Set the pen color from a given color.
*
Expand Down
1 change: 1 addition & 0 deletions signature-pad/src/main/res/values/attrs.xml
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Expand Up @@ -6,5 +6,6 @@
<attr name="penColor" format="color" />
<attr name="velocityFilterWeight" format="float" />
<attr name="clearOnDoubleClick" format="boolean"/>
<attr name="preserve" format="boolean"/>
</declare-styleable>
</resources>