android: 采用tablayout+viewpager+fragment实现选项卡出现问题
我们采用android sdk 23版本,相关的android.support.design.jar 23.1.0也导入到开发环境中
//如下为MainActivity.java
package com.example.tt;
import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.support.v4.app.FragmentActivity;
public class MainActivity extends FragmentActivity {//
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
}
//如下为activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/activity_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context="com.example.tt.MainActivity">
<android.support.design.widget.TabLayout
android:id="@+id/tab_title"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#FF3232"
/>
<android.support.v4.view.ViewPager
android:id="@+id/vp_pager"
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight="1" />
</LinearLayout>
//如下是主要出错信息
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.tt/com.example.tt.MainActivity}: android.view.InflateException: Binary XML file line #10: Binary XML file line #10: Error inflating class android.support.design.widget.TabLayout
...
Caused by: java.lang.ClassNotFoundException: Didn't find class "android.support.design.R$attr" on path: DexPathList[[zip file "/data/app/com.example.tt-1/base.apk"],nativeLibraryDirectories=[/data/app/com.example.tt-1/lib/arm, /vendor/lib, /system/lib]]