Android简单实现透明状态栏、去除标题

第一种全屏显示

public class Main3Activity extends AppCompatActivity {    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main3);    }    @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);        }    }}

第二种就是大家比较常用的透明状态栏，放到oncreate中就可以

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {    //5.0 全透明实现    //getWindow.setStatusBarColor(Color.TRANSPARENT)    Window window = getWindow();    window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);    window.getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN | View.SYSTEM_UI_FLAG_LAYOUT_STABLE);    window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);    window.setStatusBarColor(Color.TRANSPARENT);} else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {    //4.4 全透明状态栏    getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);}

在配置文件里修改去除标题

android:theme="@style/Theme.AppCompat.Light.NoActionBar"

例子

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