通过AccessibilityService（无障碍服务）自动在设置界面打开App所需要的对应权限

2023-10-11 02:50| 来源: 网络整理| 查看: 265

最近看到一个项目比如说需要允许访问应用权限、以及录屏等权限的时候在手机运行的时候点击跳转至无障碍界面点击打开无障碍服务，然后调转至设置界面，然后手机就自动的一步一步的打开App所需的权限，看起来特别牛逼和智能的亚子。了解了一下发现通过AccessibilityService这个类可以完成上述需求。但是由于每款手机的设置界面是不相同的，所以需要做不同的机型判断适配机型。我的是在华为 Honor 9i（Android 9.0系统）中完成自动设置权限的功能的。

关于AccessibilityService类我就不做过多的解释了，直接撸代码

1.在清单文件的application中添加：

2.配置需要监听的包名和行为，也就是@xml/autodebug文件：在xml文件夹中创建autodebug文件。

这里说一下 android:packageNames中的值就是需要监听的应用。

3.创建AutoDebugService类继承自AccessibilityService类：

public class AutoDebugService extends AccessibilityService { }

4.重写方法：

@Override public void onAccessibilityEvent(AccessibilityEvent event) { }

需要重写的核心方法所有事件都是从这个方法监听的，比如界面改变，点击，长按等事件。

5.通过事件判断是否监听：

if (AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED == event.getEventType() || AccessibilityEvent.TYPE_VIEW_CLICKED == event.getEventType()) { }

此处我是通过界面改变和点击事件进行过滤，逻辑都是写在此回调方法中，

以下就是全部代码，只供参考思路，不同的手机是需要适配的。

public class AutoDebugService extends AccessibilityService { int index = 0; @Override public void onAccessibilityEvent(AccessibilityEvent event) { if (AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED == event.getEventType() || AccessibilityEvent.TYPE_VIEW_CLICKED == event.getEventType()) { if (step == 0) { try { Thread.sleep(700); } catch (InterruptedException e) { e.printStackTrace(); } if (AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED == event.getEventType()) { event("com.android.settings:id/dashboard_container", "帐户"); Log.e("lee", step + "*******"); } } else if (step == 1) { try { Thread.sleep(700); } catch (InterruptedException e) { e.printStackTrace(); } if (AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED == event.getEventType()) { Log.e("lee", step + "*******"); back(); } } else if (step == 2) { if (AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED == event.getEventType()) { back(); } } else if (step == 3) { Log.e("lee", step + "*******"); try { Thread.sleep(700); } catch (InterruptedException e) { e.printStackTrace(); } if (AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED == event.getEventType()) { event("com.android.settings:id/dashboard_container", "安全和隐私"); } } else if (step == 4) { Log.e("lee", step + "*******"); try { Thread.sleep(700); } catch (InterruptedException e) { e.printStackTrace(); } back(); } else if (step == 5) { try { Thread.sleep(700); } catch (InterruptedException e) { e.printStackTrace(); } back(); } else if (step == 6) { Log.e("lee", step + "*******"); try { Thread.sleep(700); } catch (InterruptedException e) { e.printStackTrace(); } event("com.android.settings:id/dashboard_container", "桌面和壁纸"); } else if (step == 7) { Log.e("lee", step + "*******"); try { Thread.sleep(700); } catch (InterruptedException e) { e.printStackTrace(); } event("com.android.settings:id/list", "桌面风格"); } else if (step == 8) { Log.e("lee", step + "*******"); try { Thread.sleep(700); } catch (InterruptedException e) { e.printStackTrace(); } event("com.android.settings:id/normal_l_ui_sector", "标准风格"); } else if (step == 9) { Log.e("lee", step + "*******"); try { Thread.sleep(700); } catch (InterruptedException e) { e.printStackTrace(); } back(); } else if (step == 10) { Log.e("lee", step + "*******"); try { Thread.sleep(700); } catch (InterruptedException e) { e.printStackTrace(); } back(); } else if (step == 11) { try { Thread.sleep(700); } catch (InterruptedException e) { e.printStackTrace(); } back(); } else if (step == 12) { Log.e("lee", step + "*******"); try { Thread.sleep(700); } catch (InterruptedException e) { e.printStackTrace(); } event("com.android.settings:id/dashboard_container", "应用"); } else if (step == 13) { Log.e("lee", step + "*******"); try { Thread.sleep(700); } catch (InterruptedException e) { e.printStackTrace(); } event("com.android.settings:id/list", "应用分身"); } else if (step == 14) { Log.e("lee", step + "*******"); try { Thread.sleep(700); } catch (InterruptedException e) { e.printStackTrace(); } check("com.android.settings:id/clone_app_switche"); } else if (step == 15) { Log.e("lee", step + "*******"); try { Thread.sleep(700); } catch (InterruptedException e) { e.printStackTrace(); } back(); } else if (step == 16) { Log.e("lee", step + "*******"); try { Thread.sleep(700); } catch (InterruptedException e) { e.printStackTrace(); } back(); } else if (step == 17) { try { Thread.sleep(700); } catch (InterruptedException e) { e.printStackTrace(); } back(); } else if (step == 18) { Log.e("lee", step + "*******"); try { Thread.sleep(700); } catch (InterruptedException e) { e.printStackTrace(); } event("com.android.settings:id/dashboard_container", "应用"); } else if (step == 19) { Log.e("lee", step + "*******"); try { Thread.sleep(700); } catch (InterruptedException e) { e.printStackTrace(); } event("com.android.settings:id/list", "应用启动管理"); } else if (step == 20) { Log.e("lee", step + "*******"); try { Thread.sleep(700); } catch (InterruptedException e) { e.printStackTrace(); } check("com.huawei.systemmanager:id/app_control_switch"); } else if (step == 21) { Log.e("lee", step + "*******"); try { Thread.sleep(700); } catch (InterruptedException e) { e.printStackTrace(); } back(); } else if (step == 22) { Log.e("lee", step + "*******"); try { Thread.sleep(700); } catch (InterruptedException e) { e.printStackTrace(); } back(); } else if (step == 23) { try { Thread.sleep(700); } catch (InterruptedException e) { e.printStackTrace(); } back(); } else if (step == 24) { Log.e("lee", step + "*******"); try { Thread.sleep(700); } catch (InterruptedException e) { e.printStackTrace(); } event("com.android.settings:id/dashboard_container", "系统"); } else if (step == 25) { Log.e("lee", step + "*******"); try { Thread.sleep(700); } catch (InterruptedException e) { e.printStackTrace(); } event("com.android.settings:id/list", "开发人员选项"); } else if (step == 26) { Log.e("lee", step + "*******"); try { Thread.sleep(700); } catch (InterruptedException e) { e.printStackTrace(); } event("com.android.settings:id/list", "USB 调试"); } else if (step == 27) { Log.e("lee", step + "*******"); try { Thread.sleep(700); } catch (InterruptedException e) { e.printStackTrace(); } back(); } else if (step == 28) { Log.e("lee", step + "*******"); try { Thread.sleep(700); } catch (InterruptedException e) { e.printStackTrace(); } back(); } else if (step == 29) { Log.e("lee", step + "*******"); try { Thread.sleep(700); } catch (InterruptedException e) { e.printStackTrace(); } back(); } } } /** * 通过Id获取AccessibilityNodeInfo * * @param id * @return */ private List findNodesById(String id) { AccessibilityNodeInfo root = getRootInActiveWindow(); if (root != null) { return root.findAccessibilityNodeInfosByViewId(id); } return null; } /** * 通过Text获取AccessibilityNodeInfo * * @param text * @return */ private List findNodesByText(String text) { AccessibilityNodeInfo root = getRootInActiveWindow(); if (root != null) { return root.findAccessibilityNodeInfosByText(text); } return null; } /** * 处理事件 * * @param id * @param text */ private void event(String id, String text) { List byIdList = findNodesById(id); List byTextList = findNodesByText(text); if (byTextList != null && byTextList.size() > 0) { AccessibilityNodeInfo info = byTextList.get(0); if (!info.isChecked()) { info.getParent().performAction(AccessibilityNodeInfo.ACTION_CLICK); step++; } else { byTextList.get(0).performAction(AccessibilityNodeInfo.ACTION_CLICK); step++; } } else { if (byIdList != null && byIdList.size() > 0) { byIdList.get(0).performAction(AccessibilityNodeInfo.ACTION_SCROLL_FORWARD); } } } private void check(String id) { List byIdList = findNodesById(id); if (byIdList != null && byIdList.size() > 0) { for (int i = 0; i < byIdList.size(); i++) { if (!byIdList.get(i).isChecked()) { byIdList.get(i).performAction(AccessibilityNodeInfo.ACTION_CLICK); } } } step++; } /** * 返回上一层级 */ private void back() { performGlobalAction(GLOBAL_ACTION_BACK); step++; } }

调用的方法，先判断是否打开了无障碍服务：如果打开了就跳转到设置界面进行一步一步的设置

if (isAccessibilitySettingsOn(AutoDebugService.class.getName())) {//打开了无障碍权限 Intent intent = new Intent(Settings.ACTION_SETTINGS); startActivity(intent); }

未打开的话就去打开：

Intent intent = new Intent(Settings.ACTION_ACCESSIBILITY_SETTINGS); startActivityForResult(intent, REQUEST_ACCESSIBLE_PERMISSION);

以上就完成了自动设置权限的功能。如果不知道视图的id 可以使用sdk自带的DDMS工具查看视图。

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