如何在沒有支持庫的情況下將工具欄添加到Android應用程序？

Question

我想在沒有支持庫的情況下向Android應用添加工具欄。我試過一個例子 https://gist.github.com/gabrielemariotti/ae63392e1c70bc33af8b 但是當我運行這個例子中，它顯示的應用程序停止工作

編輯 登錄貓如下

03-09 11:13:35.969 16807 16807 D dalvikvm          Late-enabling CheckJNI 
03-09 11:13:36.159 16807 16807 D ActivityThread        handleBindApplication:com.mycompany.myapp2 
03-09 11:13:36.479 16807 16807 E dalvikvm          Could not find class 'android.widget.Toolbar', referenced from method com.mycompany.myapp2.MainActivity.onCreate 
03-09 11:13:36.479 16807 16807 W dalvikvm          VFY: unable to resolve check-cast 24 (Landroid/widget/Toolbar;) in Lcom/mycompany/myapp2/MainActivity; 
03-09 11:13:36.499 16807 16807 D dalvikvm          VFY: replacing opcode 0x1f at 0x001a 
03-09 11:13:36.499 16807 16807 I dalvikvm          Failed resolving Lcom/mycompany/myapp2/MainActivity$100000000; interface 23 'Landroid/widget/Toolbar$OnMenuItemClickListener;' 
03-09 11:13:36.499 16807 16807 W dalvikvm          Link of class 'Lcom/mycompany/myapp2/MainActivity$100000000;' failed 
03-09 11:13:36.499 16807 16807 D dalvikvm          DexOpt: unable to opt direct call 0x003f at 0x30 in Lcom/mycompany/myapp2/MainActivity;.onCreate 
03-09 11:13:36.539 16807 16807 W ApplicationPackageManager     getCSCPackageItemText() 
03-09 11:13:36.549 16807 16807 D DisplayManager        DisplayManager() 
03-09 11:13:36.759 16807 16807 D AndroidRuntime        Shutting down VM 
03-09 11:13:36.759 16807 16807 W dalvikvm          threadid=1: thread exiting with uncaught exception (group=0x417bebc0) 
03-09 11:13:36.789 16807 16807 E AndroidRuntime        FATAL EXCEPTION: main 
03-09 11:13:36.789 16807 16807 E AndroidRuntime        Process: com.mycompany.myapp2, PID: 16807 
03-09 11:13:36.789 16807 16807 E AndroidRuntime        java.lang.RuntimeException: Unable to start activity ComponentInfo{com.mycompany.myapp2/com.mycompany.myapp2.MainActivity}: android.view.InflateException: Binary XML file line #6: Error inflating class Toolbar 
03-09 11:13:36.789 16807 16807 E AndroidRuntime        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2429) 
03-09 11:13:36.789 16807 16807 E AndroidRuntime        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2493) 
03-09 11:13:36.789 16807 16807 E AndroidRuntime        at android.app.ActivityThread.access$800(ActivityThread.java:166) 
03-09 11:13:36.789 16807 16807 E AndroidRuntime        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1283) 
03-09 11:13:36.789 16807 16807 E AndroidRuntime        at android.os.Handler.dispatchMessage(Handler.java:102) 
03-09 11:13:36.789 16807 16807 E AndroidRuntime        at android.os.Looper.loop(Looper.java:136) 
03-09 11:13:36.789 16807 16807 E AndroidRuntime        at android.app.ActivityThread.main(ActivityThread.java:5584) 
03-09 11:13:36.789 16807 16807 E AndroidRuntime        at java.lang.reflect.Method.invokeNative(Native Method) 
03-09 11:13:36.789 16807 16807 E AndroidRuntime        at java.lang.reflect.Method.invoke(Method.java:515) 
03-09 11:13:36.789 16807 16807 E AndroidRuntime        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1268) 
03-09 11:13:36.789 16807 16807 E AndroidRuntime        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1084) 
03-09 11:13:36.789 16807 16807 E AndroidRuntime        at dalvik.system.NativeStart.main(Native Method) 
03-09 11:13:36.789 16807 16807 E AndroidRuntime        Caused by: android.view.InflateException: Binary XML file line #6: Error inflating class Toolbar 
03-09 11:13:36.789 16807 16807 E AndroidRuntime        at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:714) 
03-09 11:13:36.789 16807 16807 E AndroidRuntime        at android.view.LayoutInflater.rInflate(LayoutInflater.java:762) 
03-09 11:13:36.789 16807 16807 E AndroidRuntime        at android.view.LayoutInflater.inflate(LayoutInflater.java:499) 
03-09 11:13:36.789 16807 16807 E AndroidRuntime        at android.view.LayoutInflater.inflate(LayoutInflater.java:398) 
03-09 11:13:36.789 16807 16807 E AndroidRuntime        at android.view.LayoutInflater.inflate(LayoutInflater.java:354) 
03-09 11:13:36.789 16807 16807 E AndroidRuntime        at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:331) 
03-09 11:13:36.789 16807 16807 E AndroidRuntime        at android.app.Activity.setContentView(Activity.java:2018) 
03-09 11:13:36.789 16807 16807 E AndroidRuntime        at com.mycompany.myapp2.MainActivity.onCreate(MainActivity.java:13) 
03-09 11:13:36.789 16807 16807 E AndroidRuntime        at android.app.Activity.performCreate(Activity.java:5442) 
03-09 11:13:36.789 16807 16807 E AndroidRuntime        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1094) 
03-09 11:13:36.789 16807 16807 E AndroidRuntime        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2393) 
03-09 11:13:36.789 16807 16807 E AndroidRuntime        ... 11 more 
03-09 11:13:36.789 16807 16807 E AndroidRuntime        Caused by: java.lang.ClassNotFoundException: Didn't find class "android.view.Toolbar" on path: DexPathList[[zip file "/data/app/com.mycompany.myapp2-25.apk"],nativeLibraryDirectories=[/data/app-lib/com.mycompany.myapp2-25, /vendor/lib, /system/lib]] 
03-09 11:13:36.789 16807 16807 E AndroidRuntime        at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56) 
03-09 11:13:36.789 16807 16807 E AndroidRuntime        at java.lang.ClassLoader.loadClass(ClassLoader.java:497) 
03-09 11:13:36.789 16807 16807 E AndroidRuntime        at java.lang.ClassLoader.loadClass(ClassLoader.java:457) 
03-09 11:13:36.789 16807 16807 E AndroidRuntime        at android.view.LayoutInflater.createView(LayoutInflater.java:566) 
03-09 11:13:36.789 16807 16807 E AndroidRuntime        at android.view.LayoutInflater.onCreateView(LayoutInflater.java:659) 
03-09 11:13:36.789 16807 16807 E AndroidRuntime        at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:66) 
03-09 11:13:36.789 16807 16807 E AndroidRuntime        at android.view.LayoutInflater.onCreateView(LayoutInflater.java:676) 
03-09 11:13:36.789 16807 16807 E AndroidRuntime        at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:701) 
03-09 11:13:36.789 16807 16807 E AndroidRuntime        ... 21 more 

Answer 1

只是做一個自定義工具欄，作爲水平線性佈局。並將您的自定義佈局包含在您需要的其他佈局文件中。

Answer 2

android.widget.Toolbar僅在API 21（Android 5.0 Lollipop）中添加。因此，您無法在API級別之前使用它 - 這正是AppCompat提供的android.support.v7.widget.Toolbar所提供的一個Toolbar，它可以反映到API 7中。