Android自定义ToolBar并实现沉浸式的方法

前言

  toolbar是android 5.0推出的一个新的导航控件用于取代之前的actionbar，由于其高度的可定制性、灵活性、具有material design风格等优点，越来越多的app也用上了toolbar。

  沉浸式状态栏是从android kitkat（android 4.4）开始出现的,它可以被设置成与app顶部相同的颜色，这就使得切换app时，整个界面就好似切换到了与app相同的风格样式一样。

依赖包：
  toolbar, implementation 'androidx.appcompat:appcompat:1.1.0'

  沉浸式, implementation 'com.gyf.immersionbar:immersionbar:3.0.0'

1、自定义toolbar步骤：

1）、定义 /values/styles.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
 <style name="textappearance_titlebar_title" parent="textappearance.appcompat.toolbar.title">
 ...
 </style>

 <style name="textappearance_titlebar_subtitle" parent="textappearance.appcompat.toolbar.subtitle">
  ....
 </style>
</resources>

2）、自定义toolbar 继承 androidx.appcompat.widget.toolbar

public class customtoolbar extends toolbar {
 private textview mcentertitle;
 private imageview mcentericon; //中心icon
 private textview mlefttext;
 private imagebutton mlefticon; 
 private textview msettingtext;
 private imagebutton msettingicon;

 public customtoolbar(context context) {
  super(context);
 }

 public customtoolbar(context context, attributeset attrs) {
  super(context, attrs);
 }

 public customtoolbar(context context, attributeset attrs, int defstyleattr) {
  super(context, attrs, defstyleattr);
 }

 
 public void setlefttext(@stringres int id) {
  setlefttext(this.getcontext().gettext(id));
 }

 
 public customtoolbar setlefttext(charsequence text) {
  context context = this.getcontext();
  if (this.mlefttext == null) {
   this.mlefttext = new textview(context);
   this.mlefttext.setgravity(gravity.center_vertical);
   this.mlefttext.setsingleline();
//   this.mlefttext.setellipsize(textutils.truncateat.end);
   setlefttextappearance(getcontext(), r.style.textappearance_titlebar_subtitle);
   //textview in left
//   this.addmyview(this.mlefttext, gravity.start);
   int i = dp2px(this, 16);
   this.addmyview(this.mlefttext, gravity.start, 0, 0, i, 0, 48);
  }
  mlefttext.settext(text);
  return this;
 }

 public void setlefttextappearance(context context, @styleres int resid) {
  if (this.mlefttext != null) {
   this.mlefttext.settextappearance(context, resid);
  }
 }

 public void setlefttextcolor(@colorint int color) {
  if (this.mlefttext != null) {
   this.mlefttext.settextcolor(color);
  }
 }

 public void setlefttextonclicklistener(onclicklistener listener) {
  if (mlefttext != null) {
   mlefttext.setonclicklistener(listener);
  }
 }

 public customtoolbar setlefticon(@drawableres int resid) {
  return setlefticon(contextcompat.getdrawable(this.getcontext(), resid));
 }

 @targetapi(build.version_codes.jelly_bean)
 public customtoolbar setlefticon(drawable drawable) {
  context context = this.getcontext();
  if (this.mlefticon == null) {
   this.mlefticon = new imagebutton(context);
    ...

   this.addmyview(this.mlefticon, gravity.start);
  } else {
   if (mlefticon.getvisibility() != visible) {
    mlefticon.setvisibility(visible);
   }
  }
  if (mlefttext != null && mlefttext.getvisibility() != gone) {
   mlefttext.setvisibility(gone);
  }
  mlefticon.setimagedrawable(drawable);
  return this;
 }

 public void setlefticononclicklistener(onclicklistener listener) {
  if (mlefticon != null) {
   mlefticon.setonclicklistener(listener);
  }
 }

 public void setlefticonvisibility(int visibility) {
  if (mlefticon != null) {
   mlefticon.setvisibility(visibility);
  }
 }

 
 public customtoolbar setmycentertitle(@stringres int id, boolean center) {
  return setmycentertitle(this.getcontext().gettext(id), center);
 }

 
 public void setmycentertitle(@stringres int rid) {
  setmycentertitle(this.getcontext().gettext(rid));
 }

 public void setmycentertitle(charsequence text) {
  context context = this.getcontext();
  if (this.mcentertitle == null) {
   this.mcentertitle = new textview(context);
   ...

  } else {
   if (this.mcentertitle.getvisibility() != visible) {
    mcentertitle.setvisibility(visible);
   }
  }
  if (mcentericon != null && mcentericon.getvisibility() != gone) {
   mcentericon.setvisibility(gone);
  }
 
  ...

 }
 public customtoolbar setmycentertitle(charsequence text, boolean center) {
  context context = this.getcontext();
  if (this.mcentertitle == null) {
   this.mcentertitle = new textview(context);

   ...

  } else {
   if (this.mcentertitle.getvisibility() != visible) {
    mcentertitle.setvisibility(visible);
   }
  }
  if (mcentericon != null && mcentericon.getvisibility() != gone) {
   mcentericon.setvisibility(gone);
  }
 
  if (!center) {
   settitle(text);
   settitletextcolor(getresources().getcolor(r.color.black));
  } else {
   mcentertitle.settext(text);
   mcentertitle.settextcolor(getresources().getcolor(r.color.black));
   mcentertitle.settextsize(16);
  }
  return this;
 }

 public void setmycentertextappearance(context context, @styleres int resid) {
  if (this.mcentertitle != null) {
   this.mcentertitle.settextappearance(context, resid);
  }
 }

 public void setmycentertextcolor(@colorint int color) {
  if (this.mcentertitle != null) {
   this.mcentertitle.settextcolor(color);
  }
 }

 public void setmycentertextonclicklistener(onclicklistener listener) {
  if (mcentertitle != null) {
   mcentertitle.setonclicklistener(listener);
  }
 }

 
 public void setmycentericon(@drawableres int resid) {
  setmycentericon(contextcompat.getdrawable(this.getcontext(), resid));
 }

 public void setmycentericon(drawable drawable) {
  context context = this.getcontext();
  if (this.mcentericon == null) {

   ...

  } else {
   if (mcentericon.getvisibility() != visible) {
    mcentericon.setvisibility(visible);
   }
  }
  if (mcentertitle != null && mcentertitle.getvisibility() != gone) {
   mcentertitle.setvisibility(gone);
  }
  
  settitle("");
  mcentericon.setimagedrawable(drawable);
 }

 
 public void setmysettingtext(@stringres int rid) {
  setmysettingtext(this.getcontext().gettext(rid));
 }

 public void setmysettingtext(charsequence text) {
  context context = this.getcontext();
  if (this.msettingtext == null) {

   ...

  } else {
   if (msettingtext.getvisibility() != visible) {
    msettingtext.setvisibility(visible);
   }
  }
  if (msettingicon != null && msettingicon.getvisibility() != gone) {
   msettingicon.setvisibility(gone);
  }
  msettingtext.settext(text);
  msettingtext.settextsize(14);
  msettingtext.settextcolor(getresources().getcolor(r.color.toolbar_title));

 }

 public void setmysettingtextappearance(context context, @styleres int resid) {
  if (msettingtext != null) {
   msettingtext.settextappearance(context, resid);
  }
 }

 public void setmysettingtextcolor(@colorint int color) {
  if (msettingtext != null) {
   msettingtext.settextcolor(color);
  }
 }

 public void setsettingtextonclicklistener(onclicklistener listener) {
  if (msettingtext != null) {
   msettingtext.setonclicklistener(listener);
  }
 }

 public customtoolbar setmysettingicon(@drawableres int resid) {
  return setmysettingicon(contextcompat.getdrawable(this.getcontext(), resid));
//  viewconfiguration.get(this.getcontext()).getscaledtouchslop();
 }

 @targetapi(build.version_codes.jelly_bean)
 public customtoolbar setmysettingicon(drawable drawable) {
  context context = this.getcontext();
  if (this.msettingicon == null) {

   ...

  } else {
   if (msettingicon.getvisibility() != visible) {
    msettingicon.setvisibility(visible);
   }
  }
  if (msettingtext != null && msettingtext.getvisibility() != gone) {
   msettingtext.setvisibility(gone);
  }
  msettingicon.setimagedrawable(drawable);
  return this;
 }

 public void setsettingicononclicklistener(onclicklistener listener) {
  if (msettingicon != null) {
   msettingicon.setonclicklistener(listener);
  }
 }

 private void addsimpleview(view v, int gravity) {
  addsimpleview(v, gravity, 0, 0, 0, 0);
 }

 private void addsimpleview(view v, int gravity, int left, int top, int right, int bottom) {
  layoutparams lp = new layoutparams(layoutparams.wrap_content,
    layoutparams.wrap_content, gravity);
  lp.setmargins(left, top, right, bottom);
  this.addview(v, lp);
 }

 
 private void addmyview(view v, int gravity) {

  addmyview(v, gravity, 0, 0, dp2px(this, 16), 0);
 }

 private void addmyview(view v, int gravity, int left, int top, int right, int bottom) {
  layoutparams lp = new layoutparams(dp2px(this, 20),
    dp2px(this, 20), gravity);
  lp.setmargins(left, top, right, bottom);
  this.addview(v, lp);
 }

 private void addmyview(view v, int gravity, int left, int top, int right, int bottom, int width) {
  layoutparams lp = new layoutparams(dp2px(this, width),
    20, gravity);
  lp.setmargins(left, top, right, bottom);
  this.addview(v, lp);
 }


 public customtoolbar setcentertitlewithimg(charsequence text, drawable drawable, boolean center) {
  context context = this.getcontext();
  if (this.mcentertitle == null) {
   this.mcentertitle = new textview(context);

   ...

   if (this.mcentertitle.getvisibility() != visible) {
    mcentertitle.setvisibility(visible);
   }
  }

  if (this.mcentericon == null) {
   this.mcentericon = new imageview(context);

   ...

  } else {
   if (mcentericon.getvisibility() != visible) {
    mcentericon.setvisibility(visible);
   }
  }

  mcentertitle.settextsize(18);
  mcentertitle.settextcolor(getresources().getcolor(r.color.black));
  mcentertitle.settext(text);
  mcentericon.setimagedrawable(drawable);

  return this;
 }

 public void setcentertitlewithimgonclicklistener(onclicklistener listener) {
  if (mcentertitle != null) {
   ((view) mcentertitle.getparent()).setonclicklistener(listener);
  }
 }
}

2、自定义toolbar使用

1）、res/layout创建布局文件

   <?xml version="1.0" encoding="utf-8"?>
<framelayout 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="wrap_content">

  <com.ktx.view.customtoolbar
    android:id="@+id/toolbar"
    android:layout_width="match_parent"
    android:layout_height="?actionbarsize"
    android:background="@android:color/white"  
    app:popuptheme="@style/themeoverlay.appcompat.light"
    app:titletextcolor="@android:color/black" />

</framelayout>

2）、在布局中使用

<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:app="http://schemas.android.com/apk/res-auto"
  xmlns:binding="http://schemas.android.com/tools">
  <data>
    <variable
      name="viewmodel"
      type="com.android.playandroid.viewmodel.loginviewmodel" />
  </data>
  <androidx.constraintlayout.widget.constraintlayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/bkg"
    android:orientation="vertical">

    <include
      layout="@layout/title_layout"
      app:layout_constraintleft_toleftof="parent"
      app:layout_constrainttop_totopof="parent" />
     ...
  </androidx.constraintlayout.widget.constraintlayout>

</layout>

3）、代码中使用

a、初始化：

  mbinding.root.toolbar.setnavigationicon(r.mipmap.register_close)
  mbinding.root.toolbar.setmycentertitle(getstring(r.string.register), true)
  mbinding.root.toolbar.setmysettingtext(getstring(r.string.login))

b、点击事件：

  mbinding.root.toolbar.setnavigationonclicklistener {
    ....
  }


  mbinding.root.toolbar.setsettingtextonclicklistener {
    ...
}

4）、沉浸式，设置toolbar背景颜色、文字颜色，一般写在基类

 protected open fun initimmersionbar() {
    //在baseactivity里初始化
    mimmersionbar = immersionbar.with(this)
    if (toolbar != null) {
      mimmersionbar.titlebar(toolbar)
    }
    mimmersionbar.statusbardarkfont(true)
  //  mimmersionbar.keyboardenable(true).navigationbarwithkitkatenable(false).init()
   // mimmersionbar.init()
    
    immersionbar.with(this).init()
  }

google原生的效果，不必多说，可以实现类似这样的效果

注意：

1、配置整个app的toolbar风格，在/value/styles.xml文件修改代码

 <style name="apptheme" parent="theme.appcompat.light.noactionbar">
  
    <item name="colorprimary">@android:color/white</item>
    <item name="colorprimarydark">@android:color/white</item>
    <item name="coloraccent">@android:color/white</item>

   ...

 
  </style>

2、修改了 toolbar的高度 ，怎么让navigationicon显示在toolbar中心?

  只要设置如下，即可：android:minheight="@dimen/toolbar_height"

3、toolbar布局文件位置

  如果在commonlibrary目录创建该文件，在app 下还需要复制一份，因为在app 使用toolbar，kotlin-android-extensions引用不到commonlibrary目录下的布局文件。

代码github：https://github.com/albertshen0211/playandroid

总结

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