1、项目结构和配置文件
2、Activity(活动)
3、Fragment(碎片)
4、Service(服务)
5、ContentProvider(内容提供者)
6、BroadcastReceiver(广播接收器)
7、Model(模型)
8、Adapter(适配器)
9、View(视图)
10、Utils(工具类)
11、其他辅助类和资源文件
以下是一个简单的安卓客户端源码示例:
1、项目结构和配置文件:
MyApp/ | app/ | src/ | main/ | java/com/example/myapp/ | MainActivity.java | res/ | layout/ | activity_main.xml | values/ | strings.xml | AndroidManifest.xml | build.gradle | settings.gradle
2、Activity(活动):
MainActivity.java
package com.example.myapp; import android.os.Bundle; import androidx.appcompat.app.AppCompatActivity; import android.widget.TextView; public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); TextView textView = findViewById(R.id.text_view); textView.setText("Hello, Android!"); } }
3、Fragment(碎片):
MainFragment.java
package com.example.myapp; import android.os.Bundle; import androidx.fragment.app.Fragment; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; public class MainFragment extends Fragment { @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { return inflater.inflate(R.layout.fragment_main, container, false); } }
4、Service(服务):
MyService.java
package com.example.myapp; import android.app.Service; import android.content.Intent; import android.os.IBinder; public class MyService extends Service { @Override public IBinder onBind(Intent intent) { return null; } @Override public int onStartCommand(Intent intent, int flags, int startId) { // TODO: 在这里执行后台任务 return START_STICKY; } }
5、ContentProvider(内容提供者):
MyContentProvider.java
package com.example.myapp; import android.content.ContentProvider; import android.content.ContentValues; import android.database.Cursor; import android.net.Uri; public class MyContentProvider extends ContentProvider { @Override public boolean onCreate() { return false; } @Override public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) { return null; } @Override public String getType(Uri uri) { return null; } @Override public Uri insert(Uri uri, ContentValues values) { return null; } @Override public int delete(Uri uri, String selection, String[] selectionArgs) { return 0; } @Override public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) { return 0; } }
6、BroadcastReceiver(广播接收器):
MyBroadcastReceiver.java
package com.example.myapp; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; public class MyBroadcastReceiver extends BroadcastReceiver { @Override public void onReceive(Context context, Intent intent) { // TODO: 在这里处理接收到的广播 } }
7、Model(模型):
User.java
package com.example.myapp; public class User { private String name; private int age; public User(String name, int age) { this.name = name; this.age = age; } public String getName() { return name; } public void setName(String name) { this.name = name; } public int getAge() { return age; } public void setAge(int age) { this.age = age; } }
8、Adapter(适配器):
UserAdapter.java
package com.example.myapp; import android.content.Context; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.ArrayAdapter; import android.widget.TextView; import java.util.List; public class UserAdapter extends ArrayAdapter<User> { public UserAdapter(Context context, List<User> users) { super(context, 0, users); } @Override public View getView(int position, View convertView, ViewGroup parent) { if (convertView == null) { convertView = LayoutInflater.from(getContext()).inflate(R.layout.item_user, parent, false); } User user = getItem(position); TextView textView = convertView.findViewById(R.id.text_view); textView.setText(user.getName() + " " + user.getAge()); return convertView; } }
9、View(视图):
activity_main.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical"> <TextView android:id="@+id/text_view" android:layout_width="wrap_content" android:layout_height="wrap_content" /> </LinearLayout>
以上内容就是解答有关安卓客户端源码的详细内容了,我相信这篇文章可以为您解决一些疑惑,有任何问题欢迎留言反馈,谢谢阅读。
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