我搜索了文档，但只找到了这个:
链接。这是用来使酒吧半透明?我想做的是使状态栏完全透明(如下图所示)，并使它向后兼容APK<19:
我的styles.xml:
<resources xmlns:tools="http://schemas.android.com/tools">
<style name="AppTheme" parent="Theme.AppCompat.Light">
<item name="android:actionBarStyle">@style/ThemeActionBar</item>
<item name="android:windowActionBarOverlay">true</item>
<!-- Support library compatibility -->
<item name="actionBarStyle">@style/ThemeActionBar</item>
<item name="windowActionBarOverlay">true</item>
</style>
<style name="ThemeActionBar" parent="Widget.AppCompat.Light.ActionBar.Solid">
<item name="android:background"> @null </item>
<!-- Support library compatibility -->
<item name="background">@null</item>
<item name="android:displayOptions"> showHome | useLogo</item>
<item name="displayOptions">showHome|useLogo</item>
</style>
</resources>
我能做的是:
下面的代码将创建一个完全透明的状态栏:
package com.demo;
import android.app.Activity;
import android.graphics.Color;
import android.os.Build;
import android.os.Bundle;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import androidx.appcompat.app.AppCompatActivity;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
if (Build.VERSION.SDK_INT >= 19 && Build.VERSION.SDK_INT < 21) {
setWindowFlag(this, WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS, true);
}
if (Build.VERSION.SDK_INT >= 19) {
getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
}
if (Build.VERSION.SDK_INT >= 21) {
setWindowFlag(this, WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS, false);
getWindow().setStatusBarColor(Color.TRANSPARENT);
}
}
public static void setWindowFlag(Activity activity, final int bits, boolean on) {
Window win = activity.getWindow();
WindowManager.LayoutParams winParams = win.getAttributes();
if (on) {
winParams.flags |= bits;
} else {
winParams.flags &= ~bits;
}
win.setAttributes(winParams);
}
}
有三个步骤:
1)只需使用此代码段到你的OnCreate方法
// FullScreen
getWindow().setFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS,
WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);
如果你正在使用Fragment，你应该把这个代码段放在你活动的OnCreate方法中。
2)确保在/res/values-v21/styles.xml中设置透明度:
<item name="android:statusBarColor">@android:color/transparent</item>
或者你可以通过编程来设置透明度:
getWindow().setStatusBarColor(Color.TRANSPARENT);
3)无论如何你都应该在styles.xml中添加代码段
<item name="android:windowTranslucentStatus">true</item>
注意:此方法仅适用于API 21及以上版本。
对于API > 23日/夜支持，您可以使用下面的扩展。要理解的重要部分是android:fitsSystemWindows="true"使用填充来在嵌入内移动(就像你会用一个工具栏)。因此，将它放在根布局中是没有意义的(除了DrawerLayout, CoordinatorLayout，…它们使用自己的实现)。
<style name="Theme.YourApp.DayNight" parent="Theme.MaterialComponents.DayNight.NoActionBar">
...
<item name="android:windowLightStatusBar">@bool/isDayMode</item>
<item name="android:statusBarColor">@android:color/transparent</item>
</style>
<androidx.constraintlayout.widget.ConstraintLayout
...>
<com.google.android.material.appbar.MaterialToolbar
...
android:fitsSystemWindows="true">
</androidx.constraintlayout.widget.ConstraintLayout
fun Activity.transparentStatusBar() {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.R) {
window.decorView.systemUiVisibility = (View.SYSTEM_UI_FLAG_LAYOUT_STABLE or View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN)
} else {
window.setDecorFitsSystemWindows(false)
}
}
然后像这样称呼它:
class YourActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
...
transparentStatusBar()
}
}
看看克里斯·巴内斯的这些幻灯片:成为窗户安装大师
编辑:如果你对导航栏后面的浮动内容有问题，请使用
// using Insetter
binding.yourViewHere.applySystemWindowInsetsToPadding(bottom = true)
用于谷歌的最后一次更新。这是我的代码。这将是透明的状态栏和导航栏:
把你的主题改为:
<style name="Theme.Pink"
parent="Theme.MaterialComponents.DayNight.NoActionBar">
<!-- Primary brand color. -->
<item name="colorPrimary">@color/pink_primary</item>
<item name="colorPrimaryVariant">@color/pink_dark</item>
<item name="colorOnPrimary">@color/black</item>
<!-- Secondary brand color. -->
<item name="colorSecondary">@color/pink_light</item>
<item name="colorSecondaryVariant">@color/pink_primary</item>
<item name="colorOnSecondary">@color/black</item>
<item name="android:textColor">?attr/colorOnPrimary</item>
<!-- Status bar color. -->
<!-- Customize your theme here. -->
//transparent statusbar
<item name="android:windowTranslucentStatus">true</item>
<item name="android:windowIsTranslucent">true</item>
//transparent navigationbar
<item name="android:windowTranslucentNavigation">true</item>
</style>
然后在layout (file xml)中:添加2个属性point_top和point_bottom来确定应用程序其他组件的边距值的位置:
<androidx.constraintlayout.widget.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/bg_activity">
<TextView
android:id="@+id/point_top"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/point_bottom"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent" />
<.....>
</androidx.constraintlayout.widget.ConstraintLayout>
然后在baseActivity或yourActivity中:在onCreate中添加以下代码:
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
binding = setLayout()
//set inset for view
ViewCompat.setOnApplyWindowInsetsListener(binding.root) { _, insets ->
val paramsTop =
findViewById<TextView>(R.id.point_top).layoutParams as MarginLayoutParams
paramsTop.setMargins(0, insets.getInsets(WindowInsetsCompat.Type.systemBars()).top, 0, 0)
findViewById<TextView>(R.id.point_top).layoutParams = paramsTop
val paramsBottom =
findViewById<TextView>(R.id.point_bottom).layoutParams as MarginLayoutParams
paramsBottom.setMargins(0, 0, 0, insets.getInsets(WindowInsetsCompat.Type.systemBars()).bottom)
findViewById<TextView>(R.id.point_bottom).layoutParams = paramsBottom
insets.consumeSystemWindowInsets()
}
setContentView(binding.root)
}
希望这对大家有所帮助。
