沉浸式狀態的應用,是android4.4加入的功能實現。
先看看應用的實例(狀態欄的顏色改變了,整個界面和諧了):
實現方法有三種:
1,系統實現
在代碼中進行設置:
public class TopBarActivity extends Activity{
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT){
getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
}
setContentView(R.layout.layout_topbar);
}
}
在佈局中加入申明:fitsSystemWindows="true" , clipToPadding="true"
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:fitsSystemWindows="true"
android:clipToPadding="true"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:textSize="22sp"
android:textColor="@android:color/white"
android:background="@android:color/holo_blue_dark"
android:text="topbar"/>
</LinearLayout>
2,在Android4.4加入 WindowStanlucentStatus這個屬性後,Android的StatusBar這個區域時可用的,於是我們可以在根佈局
動態添加一個與狀態欄等高的View,並設置背景色。
下面是一個工具類:
package com.example.songbinwang.liveinhand.uitls;
import android.app.Activity;
import android.content.Context;
import android.graphics.Color;
import android.os.Build;
import android.view.View;
import android.view.ViewGroup;
import java.lang.reflect.Field;
/**
* Created by songbinwang on 2016/10/20.
*/
public class StatusBarCompat {
public static final int Color_Default = Color.parseColor("#20000000");
public static void compat(Activity activity){
compat(activity, Color_Default);
}
public static void compat(Activity activity, int statusColor){
if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP){
if(statusColor != -1){
activity.getWindow().setStatusBarColor(statusColor);
}
}else if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT && Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP){
if(statusColor != -1){
ViewGroup convertView = (ViewGroup) activity.findViewById(android.R.id.content);
int statusHeight = getStatusBarHeight(activity);
View statusView= new View(activity);
statusView.setBackgroundColor(statusColor);
ViewGroup.LayoutParams lp = new ViewGroup.MarginLayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, statusHeight);
convertView.addView(statusView, lp);
}
}
}
/**
* 獲取狀態欄的高度
* @return
*/
protected static int getStatusBarHeight(Context context){
try
{
Class<?> c=Class.forName("com.android.internal.R$dimen");
Object obj=c.newInstance();
Field field=c.getField("status_bar_height");
int x=Integer.parseInt(field.get(obj).toString());
return context.getResources().getDimensionPixelSize(x);
}catch(Exception e){
e.printStackTrace();
}
return 0;
}
}
Activity調用(在這裏我沒有使用,getWindow().addFlags(int)方法,因爲android5.0之後,getWidow().setStatusBarColor()相沖突):
public class TopBarActivity extends Activity{
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT ){
StatusBarCompat.compat(this, Color.parseColor("#ff0099cc"));
}
setContentView(R.layout.layout_topbar);
}
}
在values-v19對應(Android4.4)中的styles.xml中添加屬性<item name="fitsSystemWindows">true</item> 。 values-v21/styles.xml中去掉(values-21對應Android5.0)
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
<!-- Customize your theme here. -->
<item name="colorPrimary">@color/colorPrimary</item>
<item name="colorPrimaryDark">@color/colorPrimaryDark</item>
<item name="colorAccent">@color/colorAccent</item>
<item name="android:windowActionBar">false</item>
<item name="android:<span style="color: rgb(63, 63, 63); font-family: 'Source Code Pro', monospace; font-size: 12.6px; line-height: 35px; white-space: nowrap; background-color: rgba(128, 128, 128, 0.0745098);">windowTranslucentStatus</span>">true</item> <!--values-v19/styles.xml-->
</style>
第三種方法是一個開源庫。SystemBarTint
其實它的的核心類就一個:SystemBarTint-master\library\src\com\readystatesoftware\systembartint\SystemBarTintManager.java
我們只要把這個類拷貝到你的項目中,就可以使用:
public class TopBarActivity extends Activity{
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT ){
getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
SystemBarTintManager tintManager = new SystemBarTintManager(this);
//激活狀態欄
tintManager.setStatusBarTintEnabled(true);
//激活導航欄
tintManager.setNavigationBarTintEnabled(true);
//設置顏色
tintManager.setStatusBarTintColor(getResources().getColor(android.R.color.holo_orange_dark));
tintManager.setNavigationBarTintColor(getResources().getColor(android.R.color.holo_green_dark));
}
setContentView(R.layout.layout_topbar);
}
}
佈局文件:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
android:clipToPadding="true">
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:textSize="22sp"
android:textColor="@android:color/white"
android:background="@android:color/holo_blue_dark"
android:text="topbar"/>
</LinearLayout>
展示一下三種方法測試的效果圖:圖一爲,第一種方法和第二種方法測試的效果圖,圖二爲第三種方法的測試效果圖。