The corresponding permissions required to automatically open the app in the setting interface through accessibility service

Recently, I saw a project that needs to allow access to applications, for example 、 And screen recording and other permissions When the mobile phone is running, click to jump to the barrier free interface and click to open the barrier free service , Then turn to the base note. , Then the phone automatically turns on step by step App Authority required , It looks very cow and intelligent sub son . Learned about it and found that through AccessibilityService This class can fulfill the above requirements . However, the setting interface of each mobile phone is different , Therefore, we need to make different models to judge the appropriate models . My job is in Huawei Honor 9i（Android 9.0 System ） To complete the function of automatically setting permissions .

About AccessibilityService Class, I won't explain too much , Direct roll up code

1. In the list file application Add ：

    <service
        android:name="com.hxf.childapp.AutoDebugService"
        android:enabled="true"
        android:exported="true"
        android:label=" Your bag name "
        android:permission="android.permission.BIND_ACCESSIBILITY_SERVICE">
        <intent-filter>
            <action android:name="android.accessibilityservice.AccessibilityService"/>
        </intent-filter>
        <meta-data
            android:name="android.accessibilityservice"
            android:resource="@xml/autodebug"/>
    </service>

2. Configure the package name and behavior to be monitored , That is to say @xml/autodebug file ： stay xml Create in folder autodebug file .

<?xml version="1.0" encoding="utf-8"?>
<accessibility-service xmlns:android="http://schemas.android.com/apk/res/android"
    android:accessibilityEventTypes="typeAllMask|typeWindowStateChanged|typeWindowContentChanged"
    android:accessibilityFeedbackType="feedbackGeneric"
    android:accessibilityFlags="flagReportViewIds"
    android:canPerformGestures="true"
    android:notificationTimeout="100"
    android:canRetrieveWindowContent="true"
    android:packageNames="com.android.settings" />

Here's to say android:packageNames The value in is the application that needs to be monitored .

3. establish AutoDebugService Class inherits from AccessibilityService class ：

public class AutoDebugService extends AccessibilityService {
	
}

4. Rewriting methods ：

@Override
    public void onAccessibilityEvent(AccessibilityEvent event) {
    
    }

The core method that needs to be rewritten All events are monitored from this method , For example, the interface changes , Click on , Long press and other events .

5. Judge whether to listen through events ：

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

}

Here I filter through interface changes and click events , The logic is written in this callback method ,

Here's the whole code , For reference only , The need for mobile phones is different .

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", " account ");
                    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", " Security and privacy ");
                }
            } 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", " Desktop and wallpaper ");
            } else if (step == 7) {
                Log.e("lee", step + "*******");
                try {
                    Thread.sleep(700);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
                event("com.android.settings:id/list", " Desktop style ");
            } 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", " Standard style ");
            } 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", " application ");
            } else if (step == 13) {
                Log.e("lee", step + "*******");
                try {
                    Thread.sleep(700);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
                event("com.android.settings:id/list", " Application separation ");
            } 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", " application ");
            } else if (step == 19) {
                Log.e("lee", step + "*******");
                try {
                    Thread.sleep(700);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
                event("com.android.settings:id/list", " Application startup management ");
            } 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", " System ");
            } else if (step == 25) {
                Log.e("lee", step + "*******");
                try {
                    Thread.sleep(700);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
                event("com.android.settings:id/list", " Developer options ");
            } else if (step == 26) {
                Log.e("lee", step + "*******");
                try {
                    Thread.sleep(700);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
                event("com.android.settings:id/list", "USB  debugging ");
            } 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();
            }
        }
    }

    /**
     *  adopt Id obtain AccessibilityNodeInfo
     *
     * @param id
     * @return
     */
    private List<AccessibilityNodeInfo> findNodesById(String id) {
        AccessibilityNodeInfo root = getRootInActiveWindow();
        if (root != null) {
            return root.findAccessibilityNodeInfosByViewId(id);
        }
        return null;
    }

    /**
     *  adopt Text obtain AccessibilityNodeInfo
     *
     * @param text
     * @return
     */
    private List<AccessibilityNodeInfo> findNodesByText(String text) {
        AccessibilityNodeInfo root = getRootInActiveWindow();
        if (root != null) {
            return root.findAccessibilityNodeInfosByText(text);
        }
        return null;
    }

    /**
     *  Handling events 
     *
     * @param id
     * @param text
     */
    private void event(String id, String text) {
        List<AccessibilityNodeInfo> byIdList = findNodesById(id);
        List<AccessibilityNodeInfo> 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<AccessibilityNodeInfo> 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++;
    }


    /**
     *  Return to the previous level 
     */
    private void back() {
        performGlobalAction(GLOBAL_ACTION_BACK);
        step++;
    }
}

Method called , First determine whether the accessibility service is turned on ：
If it is opened, jump to the setting interface for step-by-step setting

if (isAccessibilitySettingsOn(AutoDebugService.class.getName())) {// Accessibility is turned on 
                Intent intent = new Intent(Settings.ACTION_SETTINGS);
                startActivity(intent);
            }

If you don't open it, open it ：

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

The above completes the function of automatically setting permissions . If you don't know the of the view id have access to sdk Self contained DDMS Tool view .