AaronFiore/electrum
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android: qr scanner: allow tap to focus

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Allow tap to focus in the android qr scanner as some devices don't
support autofocus. This should allow them to focus on some qr code.
This commit is contained in:
f321x
2025-12-22 15:02:01 +01:00
parent e09794c232
commit d1368db313
1 changed files with 6 additions and 3 deletions
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9
electrum/gui/qml/java_classes/org/electrum/qr/SimpleScannerActivity.java
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@@ -95,7 +95,10 @@ public class SimpleScannerActivity extends Activity {
private void startCamera() { private void startCamera() {
if (mScannerView == null) { if (mScannerView == null) {
mScannerView = new BarcodeScannerView(this); mScannerView = new BarcodeScannerView(this);
mScannerView.setCropRatio(0.75f); // Set crop ratio to 75% (this defines the square area shown in the scanner view) // Set crop ratio to 75% (this defines the square area shown in the scanner view)
mScannerView.setCropRatio(0.75f);
// allow tap to focus (note: some devices don't support autofocus which is enabled by default)
mScannerView.setTapToFocus();
// by default only Format.QR_CODE is set // by default only Format.QR_CODE is set
ViewGroup contentFrame = (ViewGroup) findViewById(R.id.content_frame); ViewGroup contentFrame = (ViewGroup) findViewById(R.id.content_frame);
contentFrame.addView(mScannerView); contentFrame.addView(mScannerView);
@@ -172,7 +175,7 @@ public class SimpleScannerActivity extends Activity {
// Get the root view and set up insets listener // Get the root view and set up insets listener
getWindow().getDecorView().setOnApplyWindowInsetsListener((v, insets) -> { getWindow().getDecorView().setOnApplyWindowInsetsListener((v, insets) -> {
android.graphics.Insets systemBars = insets.getInsets(WindowInsets.Type.systemBars()); android.graphics.Insets systemBars = insets.getInsets(WindowInsets.Type.systemBars());
// Apply padding to content frame to keep scanner focus area centered // Apply padding to content frame to keep scanner focus area centered
ViewGroup contentFrame = findViewById(R.id.content_frame); ViewGroup contentFrame = findViewById(R.id.content_frame);
if (contentFrame != null) { if (contentFrame != null) {
@@ -195,7 +198,7 @@ public class SimpleScannerActivity extends Activity {
); );
} }
// Apply bottom margin to paste button for navigation bar // Apply bottom margin to paste button for navigation bar
Button pasteButton = findViewById(R.id.paste_btn); Button pasteButton = findViewById(R.id.paste_btn);
if (pasteButton != null) { if (pasteButton != null) {
ViewGroup.MarginLayoutParams params = (ViewGroup.MarginLayoutParams) pasteButton.getLayoutParams(); ViewGroup.MarginLayoutParams params = (ViewGroup.MarginLayoutParams) pasteButton.getLayoutParams();