Question

我正在尝试编写我的第一个Android库。这是我当前的目录结构：

 olegario@reach ~/AndroidStudioProjects/escamboap $tree -d -L 1
.
├── app
├── capuccino
└── gradle

3 directories

其中capuccino是我的Android库。在这个库中，我想开始用户活动。为此，我在capuccino中使用该类，这将是我的“ main”类：

package com.getmore.olegario.capuccino;

import android.content.ComponentName;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;

public class LauncherAppActivity extends AppCompatActivity {

    private String packageName = "com.example.olegario.escamboapp";
    private String className = "com.example.olegario.escamboapp.activity.HomeWithoutAuthentication";

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

        Intent intent = new Intent();
        intent.setAction(Intent.ACTION_MAIN);
        intent.addCategory(Intent.CATEGORY_LAUNCHER);
        intent.setComponent(new ComponentName(packageName, className));
        startActivity(intent);
    }

    public String getPackageName() {
        return packageName;
    }

    public void setPackageName(String packageName) {
        this.packageName = packageName;
    }

    public String getClassName() {
        return className;
    }

    public void setClassName(String className) {
        this.className = className;
    }
}

我已经使用project(:'capuccino')函数在gradle文件中正确导入了库。然后，在我的主项目（即escamboapp）中，我编写了一个Activity来扩展这个主类：

package com.example.olegario.escamboapp.activity;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import com.getmore.olegario.capuccino.LauncherAppActivity;

public class TestActivity extends LauncherAppActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
    }
}

最后这是我的Android清单：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.olegario.escamboapp">

    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.INTERNET" />

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".activity.TestActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity
            android:name=".activity.HomeWithAuthentication"
            android:label="@string/title_activity_home_with_authentication"
            android:theme="@style/AppTheme.NoActionBar">
        </activity>
        <activity android:name=".activity.AdDetailActivity" />
        <activity
            android:name=".activity.HomeWithoutAuthentication"
            android:label="@string/app_name"
            android:theme="@style/AppTheme.NoActionBar">
            <meta-data
                android:name="android.app.searchable"
                android:resource="@xml/searchable" />

            <!--<intent-filter>-->
                <!--<action android:name="android.intent.action.MAIN" />-->

                <!--<category android:name="android.intent.category.LAUNCHER" />-->
            <!--</intent-filter>-->
            <intent-filter>
                <action android:name="android.intent.action.SEARCH" />
            </intent-filter>
        </activity>
        <activity
            android:name=".activity.CreateAdActivity"
            android:label="@string/createAd" />
        <activity
            android:name=".activity.SelectProfilePhotoActivity"
            android:label="@string/selectProfilePhoto" />
        <activity
            android:name=".activity.CreateUserBasicInfoActivity"
            android:label="@string/createAccount" />
        <activity
            android:name=".activity.LoginActivity"
            android:label="@string/signIn" />
        <activity
            android:name="com.getmore.olegario.capuccino.LauncherAppActivity"
            android:label="library" />
    </application>

</manifest>

但是当我尝试运行我的应用程序时，Logcat显示以下消息：

Process: com.example.olegario.escamboapp, PID: 10519
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.olegario.escamboapp/com.example.olegario.escamboapp.activity.TestActivity}: android.content.ActivityNotFoundException: Unable to find explicit activity class {com.example.olegario.escamboapp/.activity.HomeWithoutAuthentication}; have you declared this activity in your AndroidManifest.xml?

我的AndroidManifest.xml有什么问题吗？

Answer 1

尝试清洁和构建应用程序。如果仍然遇到问题，请尝试卸载并重新安装该应用程序。

Android-无法找到明确的活动类（使用自定义库）

1 个答案: