我想使用USSD对话框,该对话框会在拨打* 123#的任何USSD代码后出现,该对话框要求用户输入选项号以执行特定任务,具体取决于SIM卡供应商.我需要与该对话框进行交互,以便以编程方式在该对话框中提供输入.

但是,我可以使用AccessibilityService在拨打任何USSD代码后读取“警报”对话框中出现的USSD响应,并且在Toast中显示响应,如以下代码所示.我还没有找到任何与USSD对话框进行交互的解决方案.

public class UssdService extends AccessibilityService{

public static String TAG = "USSD";

@Override

public void onAccessibilityEvent(AccessibilityEvent event) {

Log.d(TAG, "onAccessibilityEvent");

String text = event.getText().toString();

if (event.getClassName().equals("android.app.AlertDialog")) {

Log.d(TAG, text);

Toast.makeText(this, text, Toast.LENGTH_LONG).show();

}

}

@Override

public void onInterrupt() {

}

@Override

protected void onServiceConnected() {

super.onServiceConnected();

Log.d(TAG, "onServiceConnected");

AccessibilityServiceInfo info = new AccessibilityServiceInfo();

info.flags = AccessibilityServiceInfo.DEFAULT;

info.packageNames = new String[]{"com.android.phone"};

info.eventTypes = AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED;

info.feedbackType = AccessibilityServiceInfo.FEEDBACK_GENERIC;

setServiceInfo(info);

}

}

这是清单中的服务声明：

android:permission="android.permission.BIND_ACCESSIBILITY_SERVICE">

android:resource="@xml/config_service" />

解决方法:

为了与USSD对话框进行交互,我使用了以下代码.

我将以下代码用于click事件：

List list = nodeInfo.findAccessibilityNodeInfosByText("Send");

for (AccessibilityNodeInfo node : list) {

node.performAction(AccessibilityNodeInfo.ACTION_CLICK);

}

我在EditText中将以下代码用于setText.这是当前焦点所在的setText.

AccessibilityNodeInfo nodeInput = nodeInfo.findFocus(AccessibilityNodeInfo.FOCUS_INPUT);

Bundle bundle = new Bundle();

bundle.putCharSequence(AccessibilityNodeInfo.ACTION_ARGUMENT_SET_TEXT_CHARSEQUENCE,pMPIN);

nodeInput.performAction(AccessibilityNodeInfo.ACTION_SET_TEXT,bundle);

nodeInput.refresh();