Android开发如何在4.0及以上系统中自定义TitleBar

时间:2022-05-20 13:26:46

本文将通过一个实例讲解怎么实现在4.0及以上系统版本中实现自定义TitleBar,这只是我自己找到的一种方法;

xml布局文件

activity_main.xml

  1. <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
  2. xmlns:tools="http://schemas.android.com/tools"
  3. android:layout_width="match_parent"
  4. android:layout_height="match_parent"
  5. android:paddingBottom="@dimen/activity_vertical_margin"
  6. android:paddingLeft="@dimen/activity_horizontal_margin"
  7. android:paddingRight="@dimen/activity_horizontal_margin"
  8. android:paddingTop="@dimen/activity_vertical_margin"
  9. tools:context=".MainActivity" >
  10. <TextView
  11. android:layout_width="wrap_content"
  12. android:layout_height="wrap_content"
  13. android:text="@string/hello_world" />
  14. </RelativeLayout>

自定义的Titlebar的布局文件titlebar.xml

  1. <?xml version="1.0" encoding="utf-8"?>
  2. <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  3. android:layout_width="match_parent"
  4. android:layout_height="48dp"
  5. android:orientation="horizontal" >
  6. <ImageView
  7. android:layout_width="wrap_content"
  8. android:layout_height="wrap_content"
  9. android:layout_gravity="center"
  10. android:layout_weight="1.5"
  11. android:src="@drawable/ic_action_search" />
  12. <TextView
  13. android:layout_width="wrap_content"
  14. android:layout_height="48dp"
  15. android:layout_weight="1.5"
  16. android:paddingTop="1dp"
  17. android:text="@string/app_name"
  18. android:textSize="14sp" />
  19. <EditText
  20. android:id="@+id/searchparameter"
  21. android:layout_width="wrap_content"
  22. android:layout_height="48dp"
  23. android:layout_margin="1dp"
  24. android:layout_weight="5"
  25. android:text="ABCDEFGHIJ"
  26. android:textSize="14sp" />
  27. <Button
  28. android:id="@+id/button"
  29. android:layout_width="wrap_content"
  30. android:layout_height="48dp"
  31. android:layout_margin="1dp"
  32. android:layout_weight="2"
  33. android:text="OK"
  34. android:textSize="14sp" />
  35. </LinearLayout>

为布局文件修改style.xml

此处的style.xml在values-11或者value-14中,否侧会报错:you cannot combine custom titles with other title features

  1. <?xml version="1.0" encoding="utf-8"?>
  2. <resources xmlns:android="http://schemas.android.com/apk/res/android">
  3. <style name="CustomizedWindowTitleBackground">
  4. <item name="android:background">#047BF0</item>
  5. </style>
  6. <style name="titlebarstyle" parent="android:Theme">
  7. <item name="android:windowTitleSize">48dp</item>
  8. <item name="android:windowTitleBackgroundStyle">@style/CustomizedWindowTitleBackground</item>
  9. <!-- All customizations that are NOT specific to a particular API-level can go here. -->
  10. </style>
  11. </resources>

在AndroidManifest.xml添加主题样式

android:theme="@style/titlebarstyle"

  1. <?xml version="1.0" encoding="utf-8"?>
  2. <manifest xmlns:android="http://schemas.android.com/apk/res/android"
  3. package="com.example.titlebardemo"
  4. android:versionCode="1"
  5. android:versionName="1.0" >
  6. <uses-sdk
  7. android:minSdkVersion="8"
  8. android:targetSdkVersion="17" />
  9. <application
  10. android:allowBackup="true"
  11. android:icon="@drawable/ic_launcher"
  12. android:label="@string/app_name" >
  13. <activity
  14. android:name="com.example.titlebardemo.MainActivity"
  15. android:label="@string/app_name"
  16. android:theme="@style/titlebarstyle" >
  17. <intent-filter>
  18. <action android:name="android.intent.action.MAIN" />
  19. <category android:name="android.intent.category.LAUNCHER" />
  20. </intent-filter>
  21. </activity>
  22. </application>
  23. </manifest>

MainActivity.java中添加实现代码

  1. protected void onCreate(Bundle savedInstanceState) {
  2. super.onCreate(savedInstanceState);
  3. requestWindowFeature(Window.FEATURE_CUSTOM_TITLE);
  4. setContentView(R.layout.activity_main);
  5. getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE,
  6. R.layout.titlebar);
  7. }

代码中requestWindowFeature(Window.FEATURECUSTOMTITLE);和getWindow().setFeatureInt(Window.FEATURECUSTOMTITLE, R.layout.titlebar);位置是固定的.

希望读者朋友们通过这个例子能够对怎么实现在4.0及以上系统版本中自定义TitleBar有深刻理解和掌握。