63 lines
2.1 KiB
Java
63 lines
2.1 KiB
Java
package app.grapheneos.pdfviewer.fragment;
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import android.app.Dialog;
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import android.os.Bundle;
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import android.view.Gravity;
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import android.widget.FrameLayout;
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import android.widget.NumberPicker;
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import androidx.annotation.NonNull;
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import androidx.fragment.app.DialogFragment;
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import com.google.android.material.dialog.MaterialAlertDialogBuilder;
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import app.grapheneos.pdfviewer.PdfViewer;
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public class JumpToPageFragment extends DialogFragment {
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public static final String TAG = "JumpToPageFragment";
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private final static String STATE_PICKER_CUR = "picker_cur";
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private final static String STATE_PICKER_MIN = "picker_min";
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private final static String STATE_PICKER_MAX = "picker_max";
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private NumberPicker mPicker;
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PdfViewer pdfViewer;
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public static JumpToPageFragment newInstance(PdfViewer pdfViewer) {
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JumpToPageFragment f = new JumpToPageFragment();
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f.pdfViewer = pdfViewer;
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return f;
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}
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@NonNull
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@Override
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public Dialog onCreateDialog(Bundle savedInstanceState) {
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mPicker = new NumberPicker(getActivity());
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mPicker.setMinValue(1);
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mPicker.setMaxValue(pdfViewer.mNumPages);
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mPicker.setValue(pdfViewer.mPage);
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final FrameLayout layout = new FrameLayout(getActivity());
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layout.addView(mPicker, new FrameLayout.LayoutParams(
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FrameLayout.LayoutParams.WRAP_CONTENT,
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FrameLayout.LayoutParams.WRAP_CONTENT,
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Gravity.CENTER));
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return new MaterialAlertDialogBuilder(requireActivity())
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.setView(layout)
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.setPositiveButton(android.R.string.ok, (dialogInterface, i) -> {
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mPicker.clearFocus();
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pdfViewer.onJumpToPageInDocument(mPicker.getValue());
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})
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.setNegativeButton(android.R.string.cancel, null)
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.create();
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}
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@Override
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public void onSaveInstanceState(Bundle outState) {
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outState.putInt(STATE_PICKER_MIN, mPicker.getMinValue());
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outState.putInt(STATE_PICKER_MAX, mPicker.getMaxValue());
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outState.putInt(STATE_PICKER_CUR, mPicker.getValue());
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}
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}
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