写在前面的:我不知道现在开发Android 还有多少公司在使用eclipse ,虽然不想用,但公司要求你又有什么办法呢?能让使用android studio是最好了。
使用用tabLayout 就是像使用它的tab 切换功能(而且切换的时候还有动画效果)。
我在使用eclipse 开发android 使用这个tablayout 中各种报错,在百度一下也会有各种答案,怎么甄别这些答案,那就只能实实在的试着了,但有的是明显错话就不用看了。
(个人感觉作者,根本就不明白 v7包和v4 为何而产生的)。
首先:eclipse 中开发android 使用tablayout 使用jar包 根本就行不通(我是试了好多遍才得出的这样的结论) 只能使用library包。
一个是 v7的appcompat 和 android-support-design 其中 design 又依赖 appcompat 。
使用jar包报错会如下(报错信息借用 其它博客):
02-05 01:38:48.846: E/AndroidRuntime(6996): FATAL EXCEPTION: main
02-05 01:38:48.846: E/AndroidRuntime(6996): Process: com.malingyi.test, PID: 6996
02-05 01:38:48.846: E/AndroidRuntime(6996): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.malingyi.test/com.malingyi.test.MainActivity}: android.view.InflateException: Binary XML file line #7: Error inflating class android.support.design.widget.TabLayout
02-05 01:38:48.846: E/AndroidRuntime(6996): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2237)
02-05 01:38:48.846: E/AndroidRuntime(6996): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2286)
02-05 01:38:48.846: E/AndroidRuntime(6996): at android.app.ActivityThread.access$800(ActivityThread.java:144)
02-05 01:38:48.846: E/AndroidRuntime(6996): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1246)
02-05 01:38:48.846: E/AndroidRuntime(6996): at android.os.Handler.dispatchMessage(Handler.java:102)
02-05 01:38:48.846: E/AndroidRuntime(6996): at android.os.Looper.loop(Looper.java:212)
02-05 01:38:48.846: E/AndroidRuntime(6996): at android.app.ActivityThread.main(ActivityThread.java:5135)
02-05 01:38:48.846: E/AndroidRuntime(6996): at java.lang.reflect.Method.invokeNative(Native Method)
02-05 01:38:48.846: E/AndroidRuntime(6996): at java.lang.reflect.Method.invoke(Method.java:515)
02-05 01:38:48.846: E/AndroidRuntime(6996): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:877)
02-05 01:38:48.846: E/AndroidRuntime(6996): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:693)
02-05 01:38:48.846: E/AndroidRuntime(6996): at dalvik.system.NativeStart.main(Native Method)
02-05 01:38:48.846: E/AndroidRuntime(6996): Caused by: android.view.InflateException: Binary XML file line #7: Error inflating class android.support.design.widget.TabLayout
02-05 01:38:48.846: E/AndroidRuntime(6996): at android.view.LayoutInflater.createView(LayoutInflater.java:620)
02-05 01:38:48.846: E/AndroidRuntime(6996): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:696)
02-05 01:38:48.846: E/AndroidRuntime(6996): at android.view.LayoutInflater.rInflate(LayoutInflater.java:755)
02-05 01:38:48.846: E/AndroidRuntime(6996): at android.view.LayoutInflater.inflate(LayoutInflater.java:492)
02-05 01:38:48.846: E/AndroidRuntime(6996): at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
02-05 01:38:48.846: E/AndroidRuntime(6996): at android.view.LayoutInflater.inflate(LayoutInflater.java:353)
02-05 01:38:48.846: E/AndroidRuntime(6996): at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:297)
02-05 01:38:48.846: E/AndroidRuntime(6996): at android.app.Activity.setContentView(Activity.java:1929)
02-05 01:38:48.846: E/AndroidRuntime(6996): at com.malingyi.test.MainActivity.onCreate(MainActivity.java:18)
02-05 01:38:48.846: E/AndroidRuntime(6996): at android.app.Activity.performCreate(Activity.java:5231)
02-05 01:38:48.846: E/AndroidRuntime(6996): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
02-05 01:38:48.846: E/AndroidRuntime(6996): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2201)
02-05 01:38:48.846: E/AndroidRuntime(6996): ... 11 more
02-05 01:38:48.846: E/AndroidRuntime(6996): Caused by: java.lang.reflect.InvocationTargetException
02-05 01:38:48.846: E/AndroidRuntime(6996): at java.lang.reflect.Constructor.constructNative(Native Method)
02-05 01:38:48.846: E/AndroidRuntime(6996): at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
02-05 01:38:48.846: E/AndroidRuntime(6996): at android.view.LayoutInflater.createView(LayoutInflater.java:594)
02-05 01:38:48.846: E/AndroidRuntime(6996): ... 22 more
02-05 01:38:48.846: E/AndroidRuntime(6996): Caused by: java.lang.NoClassDefFoundError: android.support.design.R$styleable
02-05 01:38:48.846: E/AndroidRuntime(6996): at android.support.design.widget.TabLayout.<init>(TabLayout.java:234)
02-05 01:38:48.846: E/AndroidRuntime(6996): at android.support.design.widget.TabLayout.<init>(TabLayout.java:219)
02-05 01:38:48.846: E/AndroidRuntime(6996): ... 25 more
我们看这个报错信息:
02-05 01:38:48.846: E/AndroidRuntime(6996): Caused by: java.lang.NoClassDefFoundError: android.support.design.Rstyleable02−0501:38:48.846:E/AndroidRuntime(6996):Causedby:java.lang.NoClassDefFoundError:android.support.design.Rstyleable
styleable :第一眼要明白这里 自定义属性问题
java.lang.NoClassDefFoundError:NoClassDefFoundError错误的发生,是因为Java虚拟机在编译时能找到合适的类,而在运行时不能找到合适的类导致的错误。例如在运行时我们想调用某个类的方法或者访问这个类的静态成员的时候,发现这个类不可用,此时Java虚拟机就会抛出NoClassDefFoundError错误。与ClassNotFoundException的不同在于,这个错误发生只在运行时需要加载对应的类不成功,而不是编译时发生。
说了这么多感觉自己说的都是废话:解决办法就是 使用最新的 appcompat 和 android-support-design library包 再加一个 v4.jar
如下图:
代码如下:
public class MainActivity extends Activity {
private TabLayout tabLayout;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
tabLayout = (TabLayout) findViewById(R.id.main_tl);
tabLayout.setTabTextColors(Color.RED, color.abc_background_cache_hint_selector_material_light);
tabLayout.addTab(tabLayout.newTab().setText("标签1"), 0);;
tabLayout.addTab(tabLayout.newTab().setText("标签2"), 1);;
tabLayout.addTab(tabLayout.newTab().setText("标签3"), 2);;
tabLayout.addTab(tabLayout.newTab().setText("标签4"), 3);;
}
}
```布局:
<div class="se-preview-section-delimiter"></div>
这里写代码片
“`
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:materialdesign="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@android:color/white"
>
<android.support.design.widget.TabLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/main_tl"
>
</android.support.design.widget.TabLayout>
</RelativeLayout>
但运行后还是报错:
05-26 09:53:59.330: E/AndroidRuntime(2276): Caused by: java.lang.IllegalArgumentException: You need to use a Theme.AppCompat theme (or descendant) with the design library.
如果是初中水平这应该是可以看得懂的,虽然我就学毕业 我也知道 我是要用不用 AppCompat 的 主题
最后运行效果如下: