Android Material 抽屉库问题

Question

这是我的代码，其中显示“DrawerView drawer”的部分是我的问题，如您所见here上面的部分让我导入了 support.v4.widget.DrawerLayout 但这里没有我可以导入的东西。

我对 android 开发还是比较陌生，如果我在这里做错了什么，我深表歉意

package com.nath.thecompletembguide;

import com.kskkbys.rate.RateThisApp;
import com.startapp.android.publish.SDKAdPreferences;
import com.startapp.android.publish.SDKAdPreferences.Gender;
import com.startapp.android.publish.StartAppSDK;

import android.net.Uri;
import android.os.Bundle;
import android.content.Intent;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarActivity;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Toast;

public class MainActivity extends ActionBarActivity {



    @Override
    protected void onStart() {
        super.onStart();
        // Monitor launch times and interval from installation
        RateThisApp.onStart(this);
        // If the criteria is satisfied, "Rate this app" dialog will be shown
        RateThisApp.showRateDialogIfNeeded(this);
    }

@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        StartAppSDK.init(this, "105864370", "207677226", new SDKAdPreferences().setAge(10).setGender(Gender.MALE), false);
        setContentView(R.layout.activity_main); 

        DrawerLayout drawerLayout = (DrawerLayout) findViewById(R.id.drawerLayout);
        DrawerView drawer = (DrawerView) findViewById(R.id.drawer);

        }





@Override
public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.main, menu);
    return true;
}

public boolean onOptionsItemSelected(MenuItem item) 
{
    if(android.R.id.home == item.getItemId()){
        finish();

    return super.onOptionsItemSelected(item);
    }

    switch (item.getItemId()) 
    {
        case R.id.action_upgrade:
            Intent launchNewIntent = new Intent("android.intent.action.VIEW", Uri.parse("https://play.google.com/store/apps/details?id=com.nath.thecompletembguidepro"));
            startActivity(launchNewIntent);
            return true;
        case R.id.action_about:
            Intent launchNewIntent3 = new Intent(MainActivity.this, MainActivity.class);
            startActivity(launchNewIntent3);
            return true;
        case R.id.action_credits:
            Intent launchNewIntent1 = new Intent(MainActivity.this,MainActivity.class);
            startActivityForResult(launchNewIntent1, 0);
            return true;
        case R.id.action_changelogs:
            Intent launchNewIntent2 = new Intent("android.intent.action.VIEW", Uri.parse("http://nathcraft.com"));
            startActivity(launchNewIntent2);
            Toast.makeText(MainActivity.this, "Requires Network Connection", Toast.LENGTH_SHORT).show();
            return true;
            default:
                return super.onOptionsItemSelected(item);
            }}}

Answer 1

许多库(可能是由于 android studio...)使用 java 文件夹作为它们的 src 文件夹...将 eclipse 中库中的所有代码从'java' 文件夹到 src 文件夹，然后清理并重建库，然后刷新您自己的项目，应该可以解决问题...