Question

我遇到了fragmentstatepageradapter无法解决的错误。我导入了以下内容：

import android.support.v4.app.FragmentManager;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentPagerAdapter;

我也尝试过：

import android.app.Fragment;
import android.app.FragmentManager;
import android.app.FragmentStatePagerAdapter;

这是我的完整代码：

import android.support.v4.app.FragmentManager;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentPagerAdapter;
public class FragmentPageAdapter extends FragmentPagerAdapter {

    public FragmentPageAdapter(FragmentManager fm) {
        super(fm);
        // TODO Auto-generated constructor stub
    }

    @Override
    public Fragment getItem(int arg0) {
        // TODO Auto-generated method stub
        switch (arg0) {
            case 0:
                return new JavaFragment();
            case 1:
                return new PhpFragment();
            case 2:
                return new DotnetFragment();
            default:
                break;
        }
        return null;
    }

    @Override
    public int getCount() {
        // TODO Auto-generated method stub
        return 3;
    }

}

这是y graddle.build代码：

申请插件：＆＃39; com.android.application＆＃39;

android { compileSdkVersion 22 buildToolsVersion＆＃34; 22.0.1＆＃34;

defaultConfig {
    applicationId "aappen.com.buddiesnew"
    minSdkVersion 21
    targetSdkVersion 22
    versionCode 1
    versionName "1.0"

}
buildTypes {
    release {
        minifyEnabled false
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
    }
}
dexOptions {
    incremental true
}

}

依赖项{

compile 'com.android.support:design:22.2.0'
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:22.2.0'
compile files('libs/mysql-connector-java-5.0.8-bin.jar')
compile files('libs/ePOS-Print.jar')
compile files('libs/printer-lib.jar')
compile files('libs/bsh-core-2.0b4.jar')
compile files('libs/velocity-1.5.jar')
compile files('libs/gcm-server.jar')
compile files('libs/annotations.jar')
compile files('libs/google-play-services.jar')
compile files('libs/gcm.jar')

}

Answer 1

您对app.FragmentPagerAdapter和support.v4.app.FragmentPagerAdapter

感到困惑

清除Android.app.Fragment和

仅使用

import android.support.v4.app.FragmentPagerAdapter;

Answer 2

在app gradle文件的依赖项中添加以下内容。

compile 'com.android.support:support-v13:22.2.0'

只需确保版本号与其他支持库的版本号相同。

导入android.support.v4.app.FragmentPagerAdapter无法解析FragmentStatePagerAdapter

2 个答案: