一、Toolbar
不僅繼承了ActionBar的所有功能,而且靈活性很高,可以配合其他控件來完成一些Material Design 的效果。
1. 效果圖
2. 代碼:
A.)value/styles.xml(隱藏掉ActionBar)
<resources>
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
<!-- Customize your theme here. -->
<item name="colorPrimary">@color/colorPrimary</item>
<item name="colorPrimaryDark">@color/colorPrimaryDark</item>
<item name="colorAccent">@color/colorAccent</item>
</style>
</resources>
B.)activity_main.xml
<?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"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.thinkpad.materialtest.MainActivity">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
app:popupTheme="@style/ThemeOverlay.AppCompat.Light">
</android.support.v7.widget.Toolbar>
</FrameLayout>
C.)menu/toolbar.xml
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
<item
android:id="@+id/backup"
android:icon="@drawable/ic_backup"
android:title="Backup"
app:showAsAction="always" />
<!--icon用於指定按鈕的圖標,title則用來指定按鈕的文字-->
<item
android:id="@+id/delete"
android:icon="@drawable/ic_delete"
android:title="Delete"
app:showAsAction="ifRoom" />
<!--
app:showAsAction指定按鈕的顯示位置,三個值可選:
always:永遠顯示在Toolbar中,屏幕空間如果不夠則不顯示;
ifRoom:屏幕空間足夠則顯示在Toolbar,不夠則顯示在菜單中;
never:永遠顯示在菜單中。
-->
<item
android:id="@+id/settings"
android:icon="@drawable/ic_settings"
android:title="Settings"
app:showAsAction="never" />
</menu>
D.)MainActivity.java
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Toast;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar)findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
}
public boolean onCreateOptionsMenu(Menu menu){
getMenuInflater().inflate(R.menu.toolbar,menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()){
case R.id.backup:
Toast.makeText(this,"你點擊了備份",Toast.LENGTH_SHORT).show();
break;
case R.id.delete:
Toast.makeText(this,"你點擊了刪除",Toast.LENGTH_SHORT).show();
break;
case R.id.settings:
Toast.makeText(this,"你點擊了設置",Toast.LENGTH_SHORT).show();
break;
default:
}
return true;
}
}
E.)添加的圖片 drawable-xhdpi
ic_backup.png (此處有圖片)
ic_delete.png
ic_settings.png
二、NavigationView
NavigationView 是 Design Support 庫中提供的一個控件,它不僅是嚴格按照Material Design 的要求來進行設計的,而且還可以將滑動菜單頁面的實現變得非常簡單,
1. 效果圖
2. 代碼(在Toolbar的示例中添加修改代碼)
A.)在 dependencies 閉包中添加:Design Support庫 & 開源項目CircleImageView
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'com.android.support:appcompat-v7:26.1.0'
implementation 'com.android.support.constraint:constraint-layout:1.1.3'
implementation 'com.android.support:design:26.1.0'
implementation 'de.hdodenhof:circleimageview:2.2.0'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.2'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
}
B.)nav_menu.xml 用於在NavigationView 中顯示具體的菜單項
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
<!--group表示一個組,而single則表示組中的所有菜單項只能單選-->
<group android:checkableBehavior="single">
<item
android:id="@+id/nav_call"
android:icon="@drawable/nav_call"
android:title="Call" />
<item
android:id="@+id/nav_friends"
android:icon="@drawable/nav_friends"
android:title="Friends" />
<item
android:id="@+id/nav_location"
android:icon="@drawable/nav_location"
android:title="Location" />
<item
android:id="@+id/nav_mail"
android:icon="@drawable/nav_mail"
android:title="Mail" />
<item
android:id="@+id/nav_task"
android:icon="@drawable/nav_task"
android:title="Tasks" />
</group>
</menu>
C.)nav_header.xml 用於在NavigationView 中顯示頭部佈局
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="180dp"
android:padding="10dp"
android:background="?attr/colorPrimary" >
<!--180dp的高度是NavigationView 比較適合的高度-->
<!--CircleImageView是一個用於將圖片圓形化的控件,用法簡單,基本和ImageView是完全一樣的-->
<de.hdodenhof.circleimageview.CircleImageView
android:id="@+id/icon_image"
android:layout_width="70dp"
android:layout_height="70dp"
android:src="@drawable/nav_icon"
android:layout_centerInParent="true" />
<TextView
android:id="@+id/mail"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:text="[email protected]"
android:textColor="#fff"
android:textSize="14sp"/>
<TextView
android:id="@+id/username"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="@id/mail"
android:text="Nicholas.Hzf"
android:textColor="#fff"
android:textSize="14sp"/>
</RelativeLayout>
D.)修改activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
app:popupTheme="@style/ThemeOverlay.AppCompat.Light">
</android.support.v7.widget.Toolbar>
</FrameLayout>
<android.support.design.widget.NavigationView
android:id="@+id/nav_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="start"
app:menu="@menu/nav_menu"
app:headerLayout="@layout/nav_header">
</android.support.design.widget.NavigationView>
</android.support.v4.widget.DrawerLayout>
E.)MainActivity.java
import android.support.annotation.NonNull;
import android.support.design.widget.NavigationView;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBar;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Toast;
public class MainActivity extends AppCompatActivity {
private DrawerLayout mDrawerLayout;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//獲得Toolbar實例
Toolbar toolbar = (Toolbar)findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
//獲得DrawerLayout實例
mDrawerLayout = (DrawerLayout)findViewById(R.id.drawer_layout);
//獲取NavigationView實例
NavigationView navView = (NavigationView)findViewById(R.id.nav_view);
//獲得ActionBar實例
ActionBar actionBar = getSupportActionBar();
if (actionBar != null ){
actionBar.setDisplayHomeAsUpEnabled(true);//顯示導航按鈕
actionBar.setHomeAsUpIndicator(R.drawable.ic_menu);//設置導航按鈕圖標
}
navView.setCheckedItem(R.id.nav_call);
navView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {
@Override
public boolean onNavigationItemSelected(@NonNull MenuItem item) {
mDrawerLayout.closeDrawers();
return true;
}
});
}
public boolean onCreateOptionsMenu(Menu menu){
getMenuInflater().inflate(R.menu.toolbar,menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()){
case android.R.id.home:
mDrawerLayout.openDrawer(GravityCompat.START);
break;
case R.id.backup:
Toast.makeText(this,"你點擊了備份",Toast.LENGTH_SHORT).show();
break;
case R.id.delete:
Toast.makeText(this,"你點擊了刪除",Toast.LENGTH_SHORT).show();
break;
case R.id.settings:
Toast.makeText(this,"你點擊了設置",Toast.LENGTH_SHORT).show();
break;
default:
}
return true;
}
}
F.)添加的圖片 drawable-xhdpi
nav_call.png (此處有圖片)
nav_friends.png
nav_location.png
nav_mail.png
nav_task.png
nav_icon.png
注:CircleImageView 開源項目主頁地址:https://github.com/hdodenhof/CircleImageView
整理學習自郭霖大佬的《第一行代碼》
目前小白一名,持續學習Android中,如有錯誤請批評指正!