MainActivity.java 文件源码

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

    // Use Toolbar instead of ActionBar
    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);

    // Prepare ProgressBar
    progressBar = (ProgressBar) findViewById(R.id.progress_spinner);

    // Show app icon in Toolbar
    getSupportActionBar().setHomeButtonEnabled(true);
    getSupportActionBar().setDisplayShowHomeEnabled(true);
    getSupportActionBar().setDisplayUseLogoEnabled(true);
    getSupportActionBar().setLogo(R.mipmap.ic_logo);

    PreferenceFragment preferenceFragment = (PreferenceFragment) getFragmentManager().findFragmentById(R.id.frag_settings);
    switchAdmin = (SwitchPreference) preferenceFragment.findPreference("pref_key_device_admin_enabled");
    switchAdmin.setOnPreferenceChangeListener(switchAdminOnChangeListener);

    // Initialize Device Policy Manager service and our receiver class
    devicePolicyManager = (DevicePolicyManager) getSystemService(Context.DEVICE_POLICY_SERVICE);
    snooperStopperDeviceAdmin = new ComponentName(this, SnooperStopperDeviceAdminReceiver.class);
}