diff options
Diffstat (limited to 'android/src/com/artifex/mupdfdemo/MuPDFActivity.java')
| -rw-r--r-- | android/src/com/artifex/mupdfdemo/MuPDFActivity.java | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/android/src/com/artifex/mupdfdemo/MuPDFActivity.java b/android/src/com/artifex/mupdfdemo/MuPDFActivity.java index 25cb68e9..9a8b691f 100644 --- a/android/src/com/artifex/mupdfdemo/MuPDFActivity.java +++ b/android/src/com/artifex/mupdfdemo/MuPDFActivity.java @@ -21,6 +21,7 @@ import android.os.Handler; import android.text.Editable; import android.text.TextWatcher; import android.text.method.PasswordTransformationMethod; +import android.util.DisplayMetrics; import android.view.KeyEvent; import android.view.Menu; import android.view.MotionEvent; @@ -85,7 +86,7 @@ class ProgressDialogX extends ProgressDialog { public class MuPDFActivity extends Activity { /* The core rendering instance */ - private final int TAP_PAGE_MARGIN = 5; + private static int tapPageMargin; private static final int SEARCH_PROGRESS_DELAY = 200; private MuPDFCore core; private String mFileName; @@ -265,6 +266,21 @@ public class MuPDFActivity extends Activity { super.onCreate(savedInstanceState); + // Get the screen size etc to customise tap margins. + // We calculate the size of 1 inch of the screen for tapping. + // On some devices the dpi values returned are wrong, so we + // sanity check it: we first restrict it so that we are never + // less than 100 pixels (the smallest Android device screen + // dimension I've seen is 480 pixels or so). Then we check + // to ensure we are never more than 1/5 of the screen width. + DisplayMetrics dm = new DisplayMetrics(); + getWindowManager().getDefaultDisplay().getMetrics(dm); + tapPageMargin = (int)dm.xdpi; + if (tapPageMargin < 100) + tapPageMargin = 100; + if (tapPageMargin > dm.widthPixels/5) + tapPageMargin = dm.widthPixels/5; + mAlertBuilder = new AlertDialog.Builder(this); if (core == null) { @@ -376,9 +392,9 @@ public class MuPDFActivity extends Activity // Clicked on a remote (GoToR) link } }); - } else if (e.getX() < super.getWidth()/TAP_PAGE_MARGIN) { + } else if (e.getX() < tapPageMargin) { super.moveToPrevious(); - } else if (e.getX() > super.getWidth()*(TAP_PAGE_MARGIN-1)/TAP_PAGE_MARGIN) { + } else if (e.getX() > super.getWidth()-tapPageMargin) { super.moveToNext(); } else if (!mButtonsVisible) { showButtons(); |