标签更改监听器android

SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
sharedPreferences.registerOnSharedPreferenceChangeListener(listener);

SharedPreferences.Editor editor = sharedPreferences.edit();
editor.putString("key", "newValue");
editor.apply(); // 或者 editor.commit();

public class MainActivity extends AppCompatActivity implements SharedPreferences.OnSharedPreferenceChangeListener {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
        sharedPreferences.registerOnSharedPreferenceChangeListener(this);
    }

    @Override
    public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
        if (key.equals("example_key")) {
            String newValue = sharedPreferences.getString(key, "default_value");
            // 处理标签更改的逻辑
        }
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
        sharedPreferences.unregisterOnSharedPreferenceChangeListener(this);
    }
}