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xml:
<Spinner android:id="@+id/spinner" android:layout_width="match_parent" android:layout_height="wrap_content" />
java:
private static final String TAG = "MainActivity"; private Spinner s; private String[] data = new String[]{"nihao", "aa", "bb"};
s = findViewById(R.id.spinner); s.setAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, data)); // 点击监听事件 s.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() { @Override public void onItemSelected(AdapterView<?> parent, View view, int position, long id) { Log.d(TAG, "onItemSelected: " + data[position]); Toast.makeText(getApplicationContext(), data[position], Toast.LENGTH_SHORT).show(); } @Override public void onNothingSelected(AdapterView<?> parent) { } });