android-活动最佳实践

知晓当前在哪个活动

创建一个BaseActivity 类继承Activity
在onCreate 中输出类名

public class BaseActivity extends AppCompatActivity {

    private static final String TAG = "BaseActivity";

    @Override
    public void onCreate(Bundle savedInstanceState, PersistableBundle persistentState) {
        super.onCreate(savedInstanceState, persistentState);
        Log.d(TAG, getClass().getSimpleName());
    }
}

随时随地退出程序

新建一个ActivityCollector 作为活动管理器

public class ActivityCollector {

    public static List<Activity> activities = new ArrayList<>();

    public static void addActivity(Activity activity) {
        activities.add(activity);
    }

    public static void remoteActivity(Activity activity) {
        activities.remove(activity);
    }

    // 销毁所有Activity
    public static void finishAll() {
        for (Activity activity : activities) {
            if (!activity.isFinishing()) {
                activity.finish();
            }
        }
    }
}

在BaseActivity

public class BaseActivity extends AppCompatActivity {

    private static final String TAG = "BaseActivity";

    @Override
    public void onCreate(Bundle savedInstanceState, PersistableBundle persistentState) {
        super.onCreate(savedInstanceState, persistentState);
        Log.d(TAG, getClass().getSimpleName());
        ActivityCollector.addActivity(this);
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        ActivityCollector.remoteActivity(this);
    }
}

在什么时候退出程序

只需要调用ActivityCollector.finishAll()方法
可以在销毁所有活动后加上杀掉进程代码

ActivityCollector.finishAll();

android.os.Process.killProcess(android.os.Process.myPid());