Android 沉浸式状态栏

1、在Activity中（只是将activity设置全屏，没有真正意义上的沉浸式）

public class MainActivity extends AppCompatActivity {    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        View decorView = getWindow().getDecorView();        int option = View.SYSTEM_UI_FLAG_FULLSCREEN;        decorView.setSystemUiVisibility(option);        ActionBar actionBar = getSupportActionBar();        actionBar.hide();    }}

2、真正意义上的沉浸式状态栏

public class MainActivity extends AppCompatActivity {    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        if (Build.VERSION.SDK_INT >= 21) {    View decorView = getWindow().getDecorView();    int option = View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN            | View.SYSTEM_UI_FLAG_LAYOUT_STABLE;    decorView.setSystemUiVisibility(option);    getWindow().setStatusBarColor(Color.TRANSPARENT);}ActionBar actionBar = getSupportActionBar();actionBar.hide();    }}

3、隐藏导航栏

super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);View decorView = getWindow().getDecorView();int option = View.SYSTEM_UI_FLAG_HIDE_NAVIGATION        | View.SYSTEM_UI_FLAG_FULLSCREEN;decorView.setSystemUiVisibility(option);ActionBar actionBar = getSupportActionBar();actionBar.hide();

4、透明状态栏和导航栏

super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);if (Build.VERSION.SDK_INT >= 21) {    View decorView = getWindow().getDecorView();    int option = View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION            | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN            | View.SYSTEM_UI_FLAG_LAYOUT_STABLE;    decorView.setSystemUiVisibility(option);    getWindow().setNavigationBarColor(Color.TRANSPARENT);    getWindow().setStatusBarColor(Color.TRANSPARENT);}ActionBar actionBar = getSupportActionBar();actionBar.hide();

5、真正的沉浸式模式

public class MainActivity extends AppCompatActivity {  ...  @Override  public void onWindowFocusChanged(boolean hasFocus) {    super.onWindowFocusChanged(hasFocus);    if (hasFocus && Build.VERSION.SDK_INT >= 19) {      View decorView = getWindow().getDecorView();      decorView.setSystemUiVisibility(      View.SYSTEM_UI_FLAG_LAYOUT_STABLE        | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION        | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN        | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION        | View.SYSTEM_UI_FLAG_FULLSCREEN        | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);    }  }}