Call a predefined number automatically on Android using PhoneGap
I am writing an application using PhoneGap and JQuery, in my application I have a panic button, onclick it should automatically call a predefined number. I manage to open my own Android dialer, but still I need the user to hit the submit button again to dial.
How can I make a direct call from the application?
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You will need to write a plugin for this function. The first thing you need to do is add:
android.permission.CALL_PRIVILEGED
to your AndroidManifest.xml. This will allow you to dial the number by skipping the Dialing app. The plugin interface requires a little JavaScript code:
cordova.define("cordova/plugin/emergencydialer",
function(require, exports, module) {
var exec = require("cordova/exec");
var EmergencyDialer = function () {};
var EmergencyDialerError = function(code, message) {
this.code = code || null;
this.message = message || '';
};
EmergencyDialer.CALL_FAILED = 0;
EmergencyDialer.prototype.call = function(telephoneNumber,success,fail) {
exec(success,fail,"EmergencyDialer", "call",[telephoneNumber]);
};
var emergencyDialer = new EmergencyDialer();
module.exports = emergencyDialer;
});
Then you will need to write Java code to make the phone call. You will need to create a new class that extends the Plugin class and writes the execution method like this:
public PluginResult execute(String action, JSONArray args, String callbackId) {
PluginResult.Status status = PluginResult.Status.OK;
String result = "";
try {
if (action.equals("call")) {
String number = "tel:" + args.getString(0);
Intent callIntent = new Intent(Intent.ACTION_CALL, Uri.parse(number));
this.cordova.getActivity().startActivity(callIntent);
}
else {
status = PluginResult.Status.INVALID_ACTION;
}
return new PluginResult(status, result);
} catch (JSONException e) {
return new PluginResult(PluginResult.Status.JSON_EXCEPTION);
}
}
Whatever you call this class, you need to add a line to your res / xml / config.xml file so PluginManager can create it.
<plugin name="EmergencyDialer" value="org.apache.cordova.plugins.EmergencyDialer"/>
and finally, in your JavaScript code, you will need to create a plugin and call it like this:
function panicButton() {
var emergencyDialer = cordova.require("cordova/plugin/emergencydialer");
emergencyDialer.call("18005551212");
}
This should do it.
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This thread is a little older, but seems popular on Google, so I would like to add that there is now a plugin https://github.com/anemitoff/PhoneGap-PhoneDialer that does this. The syntax at the bottom of this page for installing a local plugin seems a little different from what I'm used to, but it did a great job with cordova's recommended syntax for installing local plugins. If you are not familiar with this, you can read about installing plugins from various sources at http://docs.phonegap.com/en/4.0.0/guide_cli_index.md.html and we just did something like
cordova plugin add ../plugins/PhoneDialer
and it worked great and was easy to implement!
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