{
556 |
557 | /**
558 | * Callback method to be invoked when an item in this view has been selected. This callback is invoked only when
559 | * the newly selected position is different from the previously selected position or if there was no selected
560 | * item.
561 | *
562 | * @param view The {@link MaterialSpinner} view
563 | * @param position The position of the view in the adapter
564 | * @param id The row id of the item that is selected
565 | * @param item The selected item
566 | */
567 | void onItemSelected(MaterialSpinner view, int position, long id, T item);
568 | }
569 |
570 | /**
571 | * Register a callback to be invoked when an item in the dropdown is selected.
572 | *
573 | * @param onItemSelectedListener The callback that will run
574 | */
575 | public void setOnItemSelectedListener(@Nullable OnItemSelectedListener onItemSelectedListener) {
576 | this.onItemSelectedListener = onItemSelectedListener;
577 | }
578 |
579 | /**
580 | * Interface definition for a callback to be invoked when the dropdown is dismissed and no item was selected.
581 | */
582 | public interface OnNothingSelectedListener {
583 |
584 | /**
585 | * Callback method to be invoked when the {@link PopupWindow} is dismissed and no item was selected.
586 | *
587 | * @param spinner the {@link MaterialSpinner}
588 | */
589 | void onNothingSelected(MaterialSpinner spinner);
590 | }
591 |
592 | /**
593 | * Register a callback to be invoked when the {@link PopupWindow} is shown but the user didn't select an item.
594 | *
595 | * @param onNothingSelectedListener the callback that will run
596 | */
597 | public void setOnNothingSelectedListener(@Nullable OnNothingSelectedListener onNothingSelectedListener) {
598 | this.onNothingSelectedListener = onNothingSelectedListener;
599 | }
600 | }
601 |
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8 |
9 | 这是demo的效果图：
10 |
11 | 
12 |
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/spinner_lib/src/main/res/values/dimens.xml:
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1 |
2 |
5 |
6 | 
13 | \ No newline at end of file
14 | +
15 | +
18 | \ No newline at end of file
19 |
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/gradle.properties:
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1 | # Project-wide Gradle settings.
2 |
3 | # IDE (e.g. Android Studio) users:
4 | # Gradle settings configured through the IDE *will override*
5 | # any settings specified in this file.
6 |
7 | # For more details on how to configure your build environment visit
8 | # http://www.gradle.org/docs/current/userguide/build_environment.html
9 |
10 | # Specifies the JVM arguments used for the daemon process.
11 | # The setting is particularly useful for tweaking memory settings.
12 | org.gradle.jvmargs=-Xmx1536m
13 |
14 | # When configured, Gradle will run in incubating parallel mode.
15 | # This option should only be used with decoupled projects. More details, visit
16 | # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
17 | # org.gradle.parallel=true
18 |
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/app/src/main/AndroidManifest.xml:
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1 |
2 |