Question

寻找MyPagerActivity和MyFragment类

出现错误无法找到GetResources（），并且不允许使用MyFragment的静态。代码早先运行得非常好，当我添加Floating Action Button类时，突然出现这些错误。我是Android编程的新手。请帮助。

    package demo.demo2;

import android.app.Activity;
import android.content.Context;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.Toolbar;
import android.view.LayoutInflater;
import android.view.TextureView;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import demo.demo2.FloatingActionButton;
import demo.demo2.FloatingActionsMenu;
import android.graphics.drawable.ShapeDrawable;
import android.graphics.drawable.shapes.OvalShape;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Toast;

import tabs.SlidingTabLayout;

public class Main3Activity extends AppCompatActivity {
    private ViewPager mPager;
    private Toolbar toolbar;
    Activity activity;

    private SlidingTabLayout mTabs;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main3);

        Toolbar toolbar= (Toolbar) findViewById(R.id.app_bar);
        setSupportActionBar(toolbar);
       getSupportActionBar().setHomeButtonEnabled(true);
       getSupportActionBar().setDisplayHomeAsUpEnabled(true);

        NavigationDrawerFragment drawerFragment=(NavigationDrawerFragment)getSupportFragmentManager().findFragmentById(R.id.fragment_navigation_drawer);

        drawerFragment.setUp(R.id.fragment_navigation_drawer, (DrawerLayout) findViewById(R.id.drawer_layout), toolbar);


        mPager = (ViewPager) findViewById(R.id.pager);

        mPager.setAdapter(new MyPagerAdapter(getSupportFragmentManager()));
        mTabs = (SlidingTabLayout) findViewById(R.id.tabs);
    mTabs.setViewPager(mPager);

        findViewById(R.id.pink_icon).setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                Toast.makeText(Main3Activity.this, "Clicked pink Floating Action Button", Toast.LENGTH_SHORT).show();
            }
        });






        FloatingActionButton button = (FloatingActionButton) findViewById(R.id.setter);
        button.setSize(FloatingActionButton.SIZE_MINI);
        button.setColorNormalResId(R.color.pink);
        button.setColorPressedResId(R.color.pink_pressed);
        button.setIcon(R.drawable.ic_fab_star);
        button.setStrokeVisible(false);

        final View actionB = findViewById(R.id.action_b);

        FloatingActionButton actionC = new FloatingActionButton(getBaseContext());
        actionC.setTitle("Hide/Show Action above");
        actionC.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                actionB.setVisibility(actionB.getVisibility() == View.GONE ? View.VISIBLE : View.GONE);
            }
        });

        final FloatingActionsMenu menuMultipleActions = (FloatingActionsMenu) findViewById(R.id.multiple_actions);
        menuMultipleActions.addButton(actionC);

        final FloatingActionButton removeAction = (FloatingActionButton) findViewById(R.id.button_remove);
        removeAction.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                ((FloatingActionsMenu) findViewById(R.id.multiple_actions_down)).removeButton(removeAction);
            }
        });

        ShapeDrawable drawable = new ShapeDrawable(new OvalShape());
        drawable.getPaint().setColor(getResources().getColor(R.color.white));
        ((FloatingActionButton) findViewById(R.id.setter_drawable)).setIconDrawable(drawable);

        final FloatingActionButton actionA = (FloatingActionButton) findViewById(R.id.action_a);
        actionA.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View view) {
                actionA.setTitle("Action A clicked");
            }
        });

        // Test that FAMs containing FABs with visibility GONE do not cause crashes
        findViewById(R.id.button_gone).setVisibility(View.GONE);

        final FloatingActionButton actionEnable = (FloatingActionButton) findViewById(R.id.action_enable);
        actionEnable.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View view) {
                menuMultipleActions.setEnabled(!menuMultipleActions.isEnabled());
            }
        });

        FloatingActionsMenu rightLabels = (FloatingActionsMenu) findViewById(R.id.right_labels);
        FloatingActionButton addedOnce = new FloatingActionButton(this);
        addedOnce.setTitle("Added once");
        rightLabels.addButton(addedOnce);

        FloatingActionButton addedTwice = new FloatingActionButton(this);
        addedTwice.setTitle("Added twice");
        rightLabels.addButton(addedTwice);
        rightLabels.removeButton(addedTwice);
        rightLabels.addButton(addedTwice);
    }











    }


    class MyPagerAdapter extends FragmentPagerAdapter {
        String[] tabs;
        public MyPagerAdapter(FragmentManager fm) {
            super(fm);
            tabs =getResources().getStringArray(R.array.tabs);
        }

        @Override
        public Fragment getItem(int position) {
            MyFragment myFragment=MyFragment.getInstance(position);
            return myFragment;
        }

        @Override
        public CharSequence getPageTitle(int position) {
            return tabs[position];
        }

        @Override
        public int getCount() {
            return 6;
        }
    }

    public static class MyFragment extends Fragment {
        private TextView textView;
        public static MyFragment getInstance(int position) {

            MyFragment myFragment = new MyFragment();
            Bundle args=new Bundle();
            args.putInt("position",position);
            myFragment.setArguments(args);
            return myFragment;

        }

        @Override
        public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
            View layout=inflater.inflate(R.layout.fragment_my,container,false);
            textView=(TextView)layout.findViewById(R.id.position);
            Bundle bundle=getArguments();
            if (bundle!=null)
            {
                textView.setText("The Page Selected is"  +bundle.getInt("position"));
            }
            return layout;
        }
    }

这是堆栈跟踪

执行任务：[clean，：app：generateDebugSources，   ：app：generateDebugAndroidTestSources，：app：compileDebugSources，   ：应用程序：compileDebugAndroidTestSources]

按需配置是一项孵化功能。：清洁UP-TO-DATE   ：app：clean：app：preBuild UP-TO-DATE：app：preDebugBuild UP-TO-DATE   ：app：checkDebugManifest：app：preReleaseBuild UP-TO-DATE   ：应用：prepareComAndroidSupportAppcompatV72311Library   ：应用：prepareComAndroidSupportCardviewV72311Library   ：应用：prepareComAndroidSupportDesign2311Library   ：应用：prepareComAndroidSupportRecyclerviewV72311Library   ：应用：prepareComAndroidSupportSupportV42311Library   ：应用：prepareComGetbaseFloatingactionbutton1101Library   ：app：prepareDebugDependencies：app：compileDebugAidl   ：app：compileDebugRenderscript：app：generateDebugBuildConfig   ：app：generateDebugAssets UP-TO-DATE：app：mergeDebugAssets   ：app：generateDebugResValues UP-TO-DATE：app：generateDebugResources   ：app：mergeDebugResources：app：processDebugManifest   ：app：processDebugResources：app：generateDebugSources   ：app：preDebugAndroidTestBuild UP-TO-DATE   ：应用：prepareDebugAndroidTestDependencies   ：app：compileDebugAndroidTestAidl：app：processDebugAndroidTestManifest   ：应用：compileDebugAndroidTestRenderscript   ：应用：generateDebugAndroidTestBuildConfig   ：app：generateDebugAndroidTestAssets UP-TO-DATE   ：应用：mergeDebugAndroidTestAssets   ：app：generateDebugAndroidTestResValues UP-TO-DATE   ：应用：generateDebugAndroidTestResources   ：应用：mergeDebugAndroidTestResources   ：应用：processDebugAndroidTestResources   ：app：generateDebugAndroidTestSources：app：compileDebugJavaWithJavac   C：\用户\宏基\桌面\ Aprajeeta \研究\ android_work \ DEMO2 \程序\ SRC \主\ java的\演示\ DEMO2 \ Main3Activity.java：151：   错误：找不到符号               tabs = getResources（）。getStringArray（R.array.tabs）;                     ^符号：方法getResources（）location：class MyPagerAdapter注意：某些输入文件使用或覆盖a   弃用的API。注意：使用-Xlint重新编译：弃用以获取详细信息。 1   错误

FAILED

失败：构建因异常而失败。



出了什么问题：任务'执行失败'：app：compileDebugJavaWithJavac'。


编译失败;有关详细信息，请参阅编译器错误输出。




尝试：使用--stacktrace选项运行以获取堆栈跟踪。使用--info或--debug选项运行以获得更多日志输出。



建立失败

总时间：39.934秒

XML文件

<?xml version="1.0" encoding="utf-8"?>

xmlns:fab="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"

tools:context="demo.demo2.Main3Activity"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:orientation="vertical">

  <android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/drawer_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <LinearLayout

        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_below="@id/app_bar"
        android:orientation="vertical"
        tools:context="demo.demo2.Main3Activity">
        <include
            android:id="@+id/app_bar"
            layout="@layout/app_bar" />

        <tabs.SlidingTabLayout
            android:id="@+id/tabs"
            android:layout_width="match_parent"
            android:layout_height="wrap_content" />

        <android.support.v4.view.ViewPager
            android:id="@+id/pager"
            android:layout_width="match_parent"
            android:layout_height="0dp"
            android:layout_weight="1"/>


        <demo.demo2.FloatingActionButton
            android:id="@+id/pink_icon"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            fab:fab_icon="@drawable/ic_fab_star"
            fab:fab_colorNormal="@color/pink"
            fab:fab_colorPressed="@color/pink_pressed"
            android:layout_alignParentBottom="true"
            android:layout_centerHorizontal="true"
            android:layout_marginBottom="16dp"/>

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_above="@id/pink_icon"
            android:text="Text below button"
            android:layout_centerHorizontal="true"
            style="@style/menu_labels_style"
            android:layout_marginBottom="48dp"/>

        <demo.demo2.AddFloatingActionButton
            android:id="@+id/semi_transparent"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_above="@id/pink_icon"
            fab:fab_plusIconColor="@color/white"
            fab:fab_colorNormal="@color/blue_semi_transparent"
            fab:fab_colorPressed="@color/blue_semi_transparent_pressed"
            android:layout_centerHorizontal="true"
            android:layout_marginBottom="16dp"/>

        <demo.demo2.FloatingActionButton
            android:id="@+id/setter"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_above="@id/semi_transparent"
            android:layout_centerHorizontal="true"
            android:layout_marginBottom="16dp"/>

        <demo.demo2.AddFloatingActionButton
            android:id="@+id/normal_plus"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentBottom="true"
            fab:fab_plusIconColor="@color/half_black"
            fab:fab_colorNormal="@color/white"
            fab:fab_colorPressed="@color/white_pressed"
            android:layout_alignParentLeft="true"
            android:layout_alignParentStart="true"
            android:layout_marginBottom="16dp"
            android:layout_marginLeft="16dp"
            android:layout_marginStart="16dp"/>

        <demo.demo2.FloatingActionsMenu
            android:id="@+id/right_labels"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentLeft="true"
            android:layout_alignParentStart="true"
            android:layout_above="@id/normal_plus"
            android:layout_marginLeft="16dp"
            android:layout_marginStart="16dp"
            fab:fab_addButtonColorNormal="@color/white"
            fab:fab_addButtonColorPressed="@color/white_pressed"
            fab:fab_addButtonPlusIconColor="@color/half_black"
            fab:fab_addButtonSize="mini"
            fab:fab_labelStyle="@style/menu_labels_style"
            fab:fab_labelsPosition="right">

            <demo.demo2.FloatingActionButton
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                fab:fab_colorNormal="@color/white"
                fab:fab_title="Label on the right"
                fab:fab_colorPressed="@color/white_pressed"/>

            <demo.demo2.FloatingActionButton
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                fab:fab_colorNormal="@color/white"
                fab:fab_size="mini"
                fab:fab_title="Another one on the right"
                fab:fab_colorPressed="@color/white_pressed"/>

        </demo.demo2.FloatingActionsMenu>

        <demo.demo2.FloatingActionsMenu
            android:id="@+id/multiple_actions"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentBottom="true"
            android:layout_alignParentRight="true"
            android:layout_alignParentEnd="true"
            fab:fab_addButtonColorNormal="@color/white"
            fab:fab_addButtonColorPressed="@color/white_pressed"
            fab:fab_addButtonPlusIconColor="@color/half_black"
            fab:fab_labelStyle="@style/menu_labels_style"
            android:layout_marginBottom="16dp"
            android:layout_marginRight="16dp"
            android:layout_marginEnd="16dp">

            <demo.demo2.FloatingActionButton
                android:id="@+id/action_a"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                fab:fab_colorNormal="@color/white"
                fab:fab_title="Action A"
                fab:fab_colorPressed="@color/white_pressed"/>

            <demo.demo2.FloatingActionButton
                android:id="@+id/action_b"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                fab:fab_colorNormal="@color/white"
                fab:fab_title="Action with a very long name that won\'t fit on the screen"
                fab:fab_colorPressed="@color/white_pressed"/>

        </demo.demo2.FloatingActionsMenu>

        <demo.demo2.FloatingActionsMenu
            android:id="@+id/multiple_actions_down"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentRight="true"
            android:layout_alignParentEnd="true"
            android:layout_alignParentTop="true"
            fab:fab_addButtonColorNormal="@color/white"
            fab:fab_addButtonColorPressed="@color/white_pressed"
            fab:fab_addButtonSize="mini"
            fab:fab_addButtonPlusIconColor="@color/half_black"
            fab:fab_expandDirection="down"
            fab:fab_labelStyle="@style/menu_labels_style"
            android:layout_marginTop="16dp"
            android:layout_marginRight="16dp"
            android:layout_marginEnd="16dp">

            <demo.demo2.FloatingActionButton
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                fab:fab_colorNormal="@color/white"
                fab:fab_colorPressed="@color/white_pressed"
                fab:fab_size="mini"/>

            <demo.demo2.FloatingActionButton
                android:id="@+id/button_remove"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                fab:fab_colorNormal="@color/white"
                fab:fab_colorPressed="@color/white_pressed"
                fab:fab_title="Click to remove"/>

            <demo.demo2.FloatingActionButton
                android:id="@+id/button_gone"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                fab:fab_colorNormal="@color/white"
                fab:fab_colorPressed="@color/white_pressed"/>

            <demo.demo2.FloatingActionButton
                android:id="@+id/action_enable"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                fab:fab_colorNormal="@color/white"
                fab:fab_title="Set bottom menu enabled/disabled"
                fab:fab_colorPressed="@color/white_pressed"/>

        </demo.demo2.FloatingActionsMenu>

        <demo.demo2.FloatingActionsMenu
            android:id="@+id/multiple_actions_left"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_toLeftOf="@+id/multiple_actions_down"
            android:layout_toStartOf="@+id/multiple_actions_down"
            android:layout_alignParentTop="true"
            fab:fab_addButtonColorNormal="@color/white"
            fab:fab_addButtonColorPressed="@color/white_pressed"
            fab:fab_addButtonSize="mini"
            fab:fab_addButtonPlusIconColor="@color/half_black"
            fab:fab_addButtonStrokeVisible="false"
            fab:fab_expandDirection="left"
            android:layout_marginTop="16dp"
            android:layout_marginRight="16dp"
            android:layout_marginEnd="16dp">

            <demo.demo2.FloatingActionButton
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                fab:fab_colorNormal="@color/white"
                fab:fab_colorPressed="@color/white_pressed"/>

            <demo.demo2.FloatingActionButton
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                fab:fab_colorNormal="@color/white"
                fab:fab_colorPressed="@color/white_pressed"
                fab:fab_size="mini"/>

            <demo.demo2.FloatingActionButton
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:visibility="gone"
                fab:fab_colorNormal="@color/white"
                fab:fab_colorPressed="@color/white_pressed"
                fab:fab_size="mini"/>

        </demo.demo2.FloatingActionsMenu>

        <demo.demo2.AddFloatingActionButton
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/setter_drawable"
            android:layout_above="@id/setter"
            android:layout_centerHorizontal="true"/>


    </LinearLayout>
    <fragment
        android:id="@+id/fragment_navigation_drawer"
        android:layout_width="@dimen/nav_drawer_width"
        android:layout_height="match_parent"
        app:layout="@layout/fragment_navigation_drawer"
        android:layout_gravity="start"
        android:name="demo.demo2.NavigationDrawerFragment"
        tools:layout="@layout/fragment_navigation_drawer" />
</android.support.v4.widget.DrawerLayout>

Answer 1

以下行

时出错

mTabs = (SlidingTabLayout) findViewById(R.id.tabs);

--- app：compileDebugJavaWithJavac C：\ Users \ acer \ Desktop \ Aprajeeta \ studies \ android_work \ Demo2 \ app \ src \ main \ java \ demo \ demo2 \ Main3Activity.java:151:error：找不到符号标签

请检查您的布局中是否没有ID“标签”。或名称不同

无法找到getResources（）

1 个答案: