我正在尝试构建一个简单的电话簿应用程序,可以在其中执行搜索,并且API将返回该信息。到目前为止,这是我要工作的部分。
我还希望使用相同的API识别传入的呼叫者,这将要求将Broastcastreceiver的传入号码放入API查询中,并且返回的信息应显示在烤面包中。这是我遇到的问题。
到目前为止,这就是我所拥有的。抱歉,如果它真的很乱,这就是我最近一直在做的事情,并做了一些小的调整。另外,它也是很多复制粘贴的工具,我是Java / Android的初学者,正在尝试学习。
HttpHandler.java
package se.xx.api_test;
import android.util.Log;
import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.ProtocolException;
import java.net.URL;
public class HttpHandler extends PhoneCallReceiver {
private static final String TAG = HttpHandler.class.getSimpleName();
public HttpHandler() {
}
public String makeServiceCall(String reqUrl) {
String response = null;
try {
URL url = new URL(reqUrl);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod("GET");
// read the response
InputStream in = new BufferedInputStream(conn.getInputStream());
response = convertStreamToString(in);
} catch (MalformedURLException e) {
Log.e(TAG, "MalformedURLException: " + e.getMessage());
} catch (ProtocolException e) {
Log.e(TAG, "ProtocolException: " + e.getMessage());
} catch (IOException e) {
Log.e(TAG, "IOException: " + e.getMessage());
} catch (Exception e) {
Log.e(TAG, "Exception: " + e.getMessage());
}
return response;
}
private String convertStreamToString(InputStream is) {
BufferedReader reader = new BufferedReader(new InputStreamReader(is));
StringBuilder sb = new StringBuilder();
String line;
try {
while ((line = reader.readLine()) != null) {
sb.append(line).append('\n');
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
is.close();
} catch (IOException e) {
e.printStackTrace();
}
}
return sb.toString();
}
}
PhoneCallReceiver.java
package se.xx.api_test;
import java.util.Date;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.telephony.TelephonyManager;
import org.json.JSONArray;
import org.json.JSONObject;
import org.json.JSONException;
import android.util.Log;
public class PhoneCallReceiver extends BroadcastReceiver {
//The receiver will be recreated whenever android feels like it. We need a static variable to remember data between instantiations
private static int lastState = TelephonyManager.CALL_STATE_IDLE;
private static Date callStartTime;
private static boolean isIncoming;
public static String savedNumber; //because the passed incoming is only valid in ringing
@Override
public void onReceive(Context context, Intent intent) {
//We listen to two intents. The new outgoing call only tells us of an outgoing call. We use it to get the number.
if (intent.getAction().equals("android.intent.action.NEW_OUTGOING_CALL")) {
savedNumber = intent.getExtras().getString("android.intent.extra.PHONE_NUMBER");
}
else{
String stateStr = intent.getExtras().getString(TelephonyManager.EXTRA_STATE);
String number = intent.getExtras().getString(TelephonyManager.EXTRA_INCOMING_NUMBER);
int state = 0;
if(stateStr.equals(TelephonyManager.EXTRA_STATE_IDLE)){
state = TelephonyManager.CALL_STATE_IDLE;
}
else if(stateStr.equals(TelephonyManager.EXTRA_STATE_OFFHOOK)){
state = TelephonyManager.CALL_STATE_OFFHOOK;
}
else if(stateStr.equals(TelephonyManager.EXTRA_STATE_RINGING)){
state = TelephonyManager.CALL_STATE_RINGING;
}
onCallStateChanged(context, state, number);
}
}
//Derived classes should override these to respond to specific events of interest
protected void onIncomingCallStarted(Context ctx, String number, Date start){}
protected void onOutgoingCallStarted(Context ctx, String number, Date start){}
protected void onIncomingCallEnded(Context ctx, String number, Date start, Date end){}
protected void onOutgoingCallEnded(Context ctx, String number, Date start, Date end){}
protected void onMissedCall(Context ctx, String number, Date start){}
//Deals with actual events
//Incoming call- goes from IDLE to RINGING when it rings, to OFFHOOK when it's answered, to IDLE when its hung up
//Outgoing call- goes from IDLE to OFFHOOK when it dials out, to IDLE when hung up
public void onCallStateChanged(Context context, int state, String number) {
if(lastState == state){
//No change, debounce extras
return;
}
switch (state) {
case TelephonyManager.CALL_STATE_RINGING:
isIncoming = true;
callStartTime = new Date();
savedNumber = number;
onIncomingCallStarted(context, number, callStartTime);
break;
case TelephonyManager.CALL_STATE_OFFHOOK:
//Transition of ringing->offhook are pickups of incoming calls. Nothing done on them
if(lastState != TelephonyManager.CALL_STATE_RINGING){
isIncoming = false;
callStartTime = new Date();
onOutgoingCallStarted(context, savedNumber, callStartTime);
}
break;
case TelephonyManager.CALL_STATE_IDLE:
//Went to idle- this is the end of a call. What type depends on previous state(s)
if(lastState == TelephonyManager.CALL_STATE_RINGING){
//Ring but no pickup- a miss
onMissedCall(context, savedNumber, callStartTime);
}
else if(isIncoming){
onIncomingCallEnded(context, savedNumber, callStartTime, new Date());
}
else{
onOutgoingCallEnded(context, savedNumber, callStartTime, new Date());
}
break;
}
lastState = state;
}
}
MainActivity.java
package se.xx.api_test;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.AutoCompleteTextView;
import android.widget.Button;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.SearchView;
import android.widget.SimpleAdapter;
import android.widget.TextView;
import android.widget.Toast;
import org.json.JSONException;
import org.json.JSONObject;
import org.json.JSONArray;
import java.util.ArrayList;
import java.util.HashMap;
import android.view.View.OnFocusChangeListener;
import android.view.inputmethod.InputMethodManager;
public class MainActivity extends AppCompatActivity {
private TextView tv;
private String TAG = MainActivity.class.getSimpleName();
private ListView lv;
ArrayList<HashMap<String, String>> contactList;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
contactList = new ArrayList<>();
lv = (ListView) findViewById(R.id.list);
tv = (TextView) findViewById(R.id.textInput);
Button queryButton = (Button) findViewById(R.id.queryButton);
queryButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
try {
InputMethodManager imm = (InputMethodManager)getSystemService(INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(getCurrentFocus().getWindowToken(), 0);
} catch (Exception e) {
// TODO: handle exception
}
contactList.clear();
new GetContacts().execute();
}
});
}
private class GetContacts extends AsyncTask<Void, Void, Void> {
@Override
protected void onPreExecute() {
super.onPreExecute();
//Toast.makeText(MainActivity.this,"Json Data is downloading",Toast.LENGTH_LONG).show();
}
@Override
protected Void doInBackground(Void... arg0) {
String id = tv.getText().toString();
HttpHandler sh = new HttpHandler();
// Making a request to url and getting response
String url = "http://10.0.2.2/api/api.php?id="+id;
String jsonStr = sh.makeServiceCall(url);
Log.e(TAG, "Response from url: " + jsonStr);
if (jsonStr != null) {
try {
JSONObject jsonObj = new JSONObject(jsonStr);
// Getting JSON Array node
JSONArray contacts = jsonObj.getJSONArray("data");
// looping through All Contacts
for (int i = 0; i < contacts.length(); i++) {
JSONObject c = contacts.getJSONObject(i);
String namn = c.getString("namn");
String avdelning = c.getString("avdelning");
//String telnr = c.getString("telnr");
//JSONObject data = jsonObj.getJSONObject("data");
//String namn = data.getString("namn");
//String avdelning = data.getString("avdelning");
//String telnr = data.getString("telnr");
// Phone node is JSON Object
JSONObject phone = c.getJSONObject("phone");
String mobil = phone.getString("mobil");
String telnr = phone.getString("telnr");
//String office = phone.getString("office");
// tmp hash map for single contact
//HashMap<String, String> contact = new HashMap<>();
HashMap<String, String> contact = new HashMap<>();
// adding each child node to HashMap key => value
contact.put("namn", namn);
contact.put("avdelning", avdelning);
contact.put("mobil", mobil);
contact.put("telnr", telnr);
//contact.put("phone", phone);
//contact.put("namn", namn);
//contact.put("avdelning", avdelning);
//contact.put("telnr", telnr);
// adding contact to contact list
contactList.add(contact);
}
} catch (final JSONException e) {
Log.e(TAG, "Json parsing error: " + e.getMessage());
runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText(getApplicationContext(),
"Json parsing error: " + e.getMessage(),
Toast.LENGTH_LONG).show();
}
});
}
} else {
Log.e(TAG, "Couldn't get json from server.");
runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText(getApplicationContext(),
"Couldn't get json from server. Check LogCat for possible errors!",
Toast.LENGTH_LONG).show();
}
});
}
return null;
}
@Override
protected void onPostExecute(Void result) {
super.onPostExecute(result);
ListAdapter adapter = new SimpleAdapter(MainActivity.this, contactList,
R.layout.list_item, new String[]{ "namn","avdelning","mobil", "telnr"},
new int[]{R.id.email, R.id.mobile, R.id.mobil, R.id.telnr});
lv.setAdapter(adapter);
}
}
}
CallReceiver.java (这就是我一直在玩的东西)
package se.xx.api_test;
import java.util.Date;
import java.util.HashMap;
import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.telephony.TelephonyManager;
import android.util.Log;
import android.widget.ListView;
import android.widget.Toast;
import android.widget.TextView;
import android.widget.RelativeLayout;
import android.view.ViewGroup;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.util.ArrayList;
import java.util.HashMap;
import android.widget.ListAdapter;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import java.lang.String;
import android.telephony.TelephonyManager;
public class CallReceiver extends PhoneCallReceiver {
@Override
public void onIncomingCallStarted(Context ctx, String number, Date start) {
final String phnr = String.valueOf(R.id.mobile);
Toast toast = Toast.makeText(ctx.getApplicationContext(), , Toast.LENGTH_SHORT);
ViewGroup group = (ViewGroup) toast.getView();
TextView messageTextView = (TextView) group.getChildAt(0);
messageTextView.setTextSize(25);
toast.show();
}
@Override
public void onOutgoingCallStarted(Context ctx, String number, Date start) {
}
@Override
protected void onIncomingCallEnded(Context ctx, String number, Date start, Date end) {
}
@Override
protected void onOutgoingCallEnded(Context ctx, String number, Date start, Date end) {
}
@Override
protected void onMissedCall(Context ctx, String number, Date start) {
}
private class APICall extends MainActivity {
String number = getIntent().getStringExtra(TelephonyManager.EXTRA_INCOMING_NUMBER);
protected Void doInBackground(Void... arg0) {
String TAG = MainActivity.class.getSimpleName();
HttpHandler sh = new HttpHandler();
// Making a request to url and getting response
String url = "http://10.0.2.2/api/api.php?id="+number;
String jsonStr = sh.makeServiceCall(url);
Log.e(TAG, "Response from url: " + jsonStr);
if (jsonStr != null) {
try {
JSONObject jsonObj = new JSONObject(jsonStr);
// Getting JSON Array node
JSONArray contacts = jsonObj.getJSONArray("data");
// looping through All Contacts
for (int i = 0; i < contacts.length(); i++) {
JSONObject c = contacts.getJSONObject(i);
final String namn = c.getString("namn");
String avdelning = c.getString("avdelning");
//String telnr = c.getString("telnr");
//JSONObject data = jsonObj.getJSONObject("data");
//String namn = data.getString("namn");
//String avdelning = data.getString("avdelning");
//String telnr = data.getString("telnr");
// Phone node is JSON Object
JSONObject phone = c.getJSONObject("phone");
String mobil = phone.getString("mobil");
String telnr = phone.getString("telnr");
//String office = phone.getString("office");
// tmp hash map for single contact
//HashMap<String, String> contact = new HashMap<>();
HashMap<String, String> contact = new HashMap<>();
// adding each child node to HashMap key => value
contact.put("namn", namn);
contact.put("avdelning", avdelning);
contact.put("mobil", mobil);
contact.put("telnr", telnr);
//contact.put("phone", phone);
//contact.put("namn", namn);
//contact.put("avdelning", avdelning);
//contact.put("telnr", telnr);
// adding contact to contact list
contactList.add(contact);
}
} catch (final JSONException e) {
Log.e(TAG, "Json parsing error: " + e.getMessage());
runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText(getApplicationContext(),
"Json parsing error: " + e.getMessage(),
Toast.LENGTH_LONG).show();
}
});
}
} else {
Log.e(TAG, "Couldn't get json from server.");
runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText(getApplicationContext(),
"Couldn't get json from server. Check LogCat for possible errors!",
Toast.LENGTH_LONG).show();
}
});
}
return null;
}
}
}
答案 0 :(得分:0)
您哪一部分出错了? 和你的Api在一起?还是在收到服务中的电话号码时? 输入您的错误以澄清情况