Android Studio 找不到可绘制资源

Question

package com.sarham.kabs.fruity;

import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.support.v7.app.ActionBarDrawerToggle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;


public class MainActivity extends ActionBarActivity implements AdapterView.OnItemClickListener{

    private DrawerLayout drawerLayout;
    private ListView listView;
    private String[] planets;
    private ActionBarDrawerToggle drawerListener;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        drawerLayout = (DrawerLayout)findViewById(R.id.drawerLayout);
        listView = (ListView)findViewById(R.id.drawerListView);
        planets = getResources().getStringArray(R.array.planets);
        listView.setAdapter(new ArrayAdapter<>(this, android.R.layout.simple_list_item_1, planets));
        listView.setOnItemClickListener(this);
        drawerListener = new ActionBarDrawerToggle(this, drawerLayout, R.mipmap.ic_drawer, R.string.drawer_open, R.string.drawer_close){
            @Override
            public void onDrawerOpened(View drawerView) {
                super.onDrawerOpened(drawerView);
                Toast.makeText(MainActivity.this,"Drawer Open", Toast.LENGTH_LONG).show();
            }

            @Override
            public void onDrawerClosed(View drawerView) {
                super.onDrawerClosed(drawerView);
                Toast.makeText(MainActivity.this, "Drawer Closed", Toast.LENGTH_LONG).show();
            }
        };
        drawerLayout.setDrawerListener(drawerListener);
    }


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

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }

    @Override
    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
        Toast.makeText(this, planets[position]+" Was selected", Toast.LENGTH_LONG).show();
        selectItem(position);
    }
    public void selectItem(int position){
        listView.setItemChecked(position, true);
        setTitle(planets[position]);
    }
    public void setTitle(String title){
        getSupportActionBar().setTitle(title);
    }
}

我正在 android studio 中做一个项目，我试图放置抽屉导航图标，但我收到此错误:“找不到符号 R.mipmap.if_drawer”， 我试过将它放在可绘制对象中，但对于符号 'R.drawable. 抛出相同的错误。 ic_drawer'

清理和重建后，我收到以下消息:

错误:(32, 26) 错误:找不到适合 ActionBarDrawerToggle(MainActivity,DrawerLayout,int,int,int) 的构造函数构造函数 ActionBarDrawerToggle.ActionBarDrawerToggle(Activity,Toolbar,DrawerLayout,T,int,int) 不适用(不能从参数实例化，因为实际和形式参数列表的长度不同)构造函数 ActionBarDrawerToggle.ActionBarDrawerToggle(Activity,DrawerLayout,Toolbar,int,int) 不适用(实参int不能通过方法调用转换为Toolbar)构造函数 ActionBarDrawerToggle.ActionBarDrawerToggle(Activity,DrawerLayout,int,int) 不适用(实际和形式参数列表的长度不同)其中 T 是类型变量:T extends Drawable,DrawerToggle declared in constructor ActionBarDrawerToggle(Activity,Toolbar,DrawerLayout,T,int,int)

Answer 1

请清理您的项目并重建。

构建 > 清理项目然后构建 > 重建项目