我正在启动一个打电话的活动,但是当我按下“结束通话”按钮时,它不会回到我的活动。你能告诉我如何启动一个呼叫活动,当按下“结束通话”按钮时它会返回给我?这就是我打电话的方式:
String url = "tel:3334444";
Intent intent = new Intent(Intent.ACTION_CALL, Uri.parse(url));
我正在启动一个打电话的活动,但是当我按下“结束通话”按钮时,它不会回到我的活动。你能告诉我如何启动一个呼叫活动,当按下“结束通话”按钮时它会返回给我?这就是我打电话的方式:
String url = "tel:3334444";
Intent intent = new Intent(Intent.ACTION_CALL, Uri.parse(url));
使用 PhoneStateListener 查看通话何时结束。您很可能需要触发侦听器操作以等待呼叫开始(等到再次从 PHONE_STATE_OFFHOOK 更改为 PHONE_STATE_IDLE),然后编写一些代码使您的应用程序恢复到 IDLE 状态。
您可能需要在服务中运行侦听器以确保它保持运行并重新启动您的应用程序。一些示例代码:
EndCallListener callListener = new EndCallListener();
TelephonyManager mTM = (TelephonyManager)this.getSystemService(Context.TELEPHONY_SERVICE);
mTM.listen(callListener, PhoneStateListener.LISTEN_CALL_STATE);
监听器定义:
private class EndCallListener extends PhoneStateListener {
@Override
public void onCallStateChanged(int state, String incomingNumber) {
if(TelephonyManager.CALL_STATE_RINGING == state) {
Log.i(LOG_TAG, "RINGING, number: " + incomingNumber);
}
if(TelephonyManager.CALL_STATE_OFFHOOK == state) {
//wait for phone to go offhook (probably set a boolean flag) so you know your app initiated the call.
Log.i(LOG_TAG, "OFFHOOK");
}
if(TelephonyManager.CALL_STATE_IDLE == state) {
//when this state occurs, and your flag is set, restart your app
Log.i(LOG_TAG, "IDLE");
}
}
}
在您的Manifest.xml
文件中添加以下权限:
<uses-permission android:name="android.permission.READ_PHONE_STATE"/>
这是关于 Starter 提出的问题。
您的代码的问题是您没有正确传递数字。
代码应该是:
private OnClickListener next = new OnClickListener() {
public void onClick(View v) {
EditText num=(EditText)findViewById(R.id.EditText01);
String number = "tel:" + num.getText().toString().trim();
Intent callIntent = new Intent(Intent.ACTION_CALL, Uri.parse(number));
startActivity(callIntent);
}
};
不要忘记在清单文件中添加权限。
<uses-permission android:name="android.permission.CALL_PHONE"></uses-permission>
或者
<uses-permission android:name="android.permission.CALL_PRIVILEGED"></uses-permission>
紧急号码,以防万一DIAL
。
我们遇到了同样的问题,并设法通过使用 aPhoneStateListener
来确定呼叫何时结束来解决它,但另外我们必须在finish()
使用原始活动再次启动它之前startActivity
,否则呼叫日志将在它的前面。
我发现 EndCallListener 是最实用的示例,为了获得所描述的行为(完成()、调用、重新启动),我添加了一些 SharedPreferences,以便监听器有一个参考来管理这种行为。
我的 OnClick、initialise 和 EndCallListener 只响应来自应用程序的调用。其他呼叫被忽略。
import android.content.Intent;
import android.content.SharedPreferences;
import android.preference.PreferenceManager;
import android.telephony.PhoneStateListener;
import android.telephony.TelephonyManager;
import android.util.Log;
public class EndCallListener extends PhoneStateListener {
private String TAG ="EndCallListener";
private int LAUNCHED = -1;
SharedPreferences prefs = PreferenceManager
.getDefaultSharedPreferences(
myActivity.mApp.getBaseContext());
SharedPreferences.Editor _ed = prefs.edit();
@Override
public void onCallStateChanged(int state, String incomingNumber) {
String _prefKey = myActivity.mApp
.getResources().getString(R.string.last_phone_call_state_key),
_bPartyNumber = myActivity.mApp
.getResources().getString(R.string.last_phone_call_bparty_key);
int mLastCallState = prefs.getInt(_prefKey, LAUNCHED);
//Save current call sate for next call
_ed.putInt(_prefKey,state);
_ed.commit();
if(TelephonyManager.CALL_STATE_RINGING == state) {
Log.i(TAG, " >> RINGING, number: " + incomingNumber);
}
if(TelephonyManager.CALL_STATE_IDLE == state && mLastCallState != LAUNCHED ) {
//when this state occurs, and your flag is set, restart your app
if (incomingNumber.equals(_bPartyNumber) == true) {
//Call relates to last app initiated call
Intent _startMyActivity =
myActivity.mApp
.getPackageManager()
.getLaunchIntentForPackage(
myActivity.mApp.getResources()
.getString(R.string.figjam_package_path));
_startMyActivity.setAction(
myActivity.mApp.getResources()
.getString(R.string.main_show_phone_call_list));
myActivity.mApp
.startActivity(_startMyActivity);
Log.i(TAG, "IDLE >> Starting MyActivity with intent");
}
else
Log.i(TAG, "IDLE after calling "+incomingNumber);
}
}
}
将这些添加到 strings.xml
<string name="main_show_phone_call_list">android.intent.action.SHOW_PHONE_CALL_LIST</string>
<string name="last_phone_call_state_key">activityLpcsKey</string>
<string name="last_phone_call_bparty_key">activityLpbpKey</string>
如果您需要返回通话前的外观和感觉,请在您的清单中使用类似的内容
<activity android:label="@string/app_name" android:name="com.myPackage.myActivity"
android:windowSoftInputMode="stateHidden"
android:configChanges="keyboardHidden" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<action android:name="android.intent.action.SHOW_PHONE_CALL_LIST" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
并将这些放在您的“myActivity”中
public static Activity mApp=null; //Before onCreate()
...
onCreate( ... ) {
...
if (mApp == null) mApp = this; //Links your resources to other classes
...
//Test if we've been called to show phone call list
Intent _outcome = getIntent();
String _phoneCallAction = mApp.getResources().getString(R.string.main_show_phone_call_list);
String _reqAction = _outcome.getAction();//Can be null when no intent involved
//Decide if we return to the Phone Call List view
if (_reqAction != null &&_reqAction.equals(_phoneCallAction) == true) {
//DO something to return to look and feel
}
...
myListView.setOnItemClickListener(new OnItemClickListener() { //Act on item when selected
@Override
public void onItemClick(AdapterView<?> a, View v, int position, long id) {
myListView.moveToPosition(position);
String _bPartyNumber = "tel:"+myListView.getString(myListView.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
//Provide an initial state for the listener to access.
initialiseCallStatePreferences(_bPartyNumber);
//Setup the listener so we can restart myActivity
EndCallListener _callListener = new EndCallListener();
TelephonyManager _TM = (TelephonyManager)mApp.getSystemService(Context.TELEPHONY_SERVICE);
_TM.listen(_callListener, PhoneStateListener.LISTEN_CALL_STATE);
Intent _makeCall = new Intent(Intent.ACTION_CALL, Uri.parse(_bPartyNumber));
_makeCall.setComponent(new ComponentName("com.android.phone","com.android.phone.OutgoingCallBroadcaster"));
startActivity(_makeCall);
finish();
//Wait for call to enter the IDLE state and then we will be recalled by _callListener
}
});
}//end of onCreate()
使用它来初始化 myActivity 中 onClick 的行为,例如在 onCreate() 之后
private void initialiseCallStatePreferences(String _BParty) {
final int LAUNCHED = -1;
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(
mApp.getBaseContext());
SharedPreferences.Editor _ed = prefs.edit();
String _prefKey = mApp.getString(R.string.last_phone_call_state_key),
_bPartyKey = mApp.getString(R.string.last_phone_call_bparty_key);
//Save default call state before next call
_ed.putInt(_prefKey,LAUNCHED);
_ed.putString(_bPartyKey,_BParty);
_ed.commit();
}
您应该会发现单击电话号码列表会完成您的活动,拨打该号码并在通话结束时返回您的活动。
在您的应用程序仍然存在时从外部拨打电话不会重新启动您的活动(除非它与上次呼叫的 BParty 号码相同)。
:)
你可以使用 startActivityForResult()
从我的角度来看,这是解决方案:
ok.setOnClickListener(this);
@Override
public void onClick(View view) {
if(view == ok){
Intent intent = new Intent(Intent.ACTION_CALL);
intent.setData(Uri.parse("tel:" + num));
activity.startActivity(intent);
}
当然,在 Activity (类)定义中,您必须实现 View.OnClickListener 。
这是我的示例,首先用户输入他/她想要拨打的号码,然后按下呼叫按钮并被定向到电话。呼叫取消后,用户将被发送回应用程序。为此,该按钮需要在 xml 中有一个 onClick 方法(在本例中为“makePhoneCall”)。您还需要在清单中注册权限。
显现
<uses-permission android:name="android.permission.CALL_PHONE"></uses-permission>
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
活动
import android.net.Uri;
import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.View;
import android.widget.EditText;
import android.widget.Toast;
public class PhoneCall extends Activity {
EditText phoneTo;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_phone_call);
phoneTo = (EditText) findViewById(R.id.phoneNumber);
}
public void makePhoneCall(View view) {
try {
String number = phoneTo.getText().toString();
Intent phoneIntent = new Intent(Intent.ACTION_CALL);
phoneIntent.setData(Uri.parse("tel:"+ number));
startActivity(phoneIntent);
} catch (android.content.ActivityNotFoundException ex) {
Toast.makeText(PhoneCall.this,
"Call failed, please try again later!", Toast.LENGTH_SHORT).show();
}
}
}
XML
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:inputType="phone"
android:ems="10"
android:id="@+id/phoneNumber"
android:layout_marginTop="67dp"
android:layout_below="@+id/textView"
android:layout_centerHorizontal="true" />
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Call"
android:id="@+id/makePhoneCall"
android:onClick="makePhoneCall"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true" />
@Override
public void onClick(View view) {
Intent phoneIntent = new Intent(Intent.ACTION_CALL);
phoneIntent.setData(Uri.parse("tel:91-000-000-0000"));
if (ActivityCompat.checkSelfPermission(mContext, Manifest.permission.CALL_PHONE) != PackageManager.PERMISSION_GRANTED) {
return;
}
startActivity(phoneIntent);
}
如果您要使用侦听器,则还需要将此权限添加到清单中。
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
Intent callIntent = new Intent(Intent.ACTION_CALL);
callIntent.setData(Uri.parse("tel:"+number));
startActivity(callIntent);
**Add permission :**
<uses-permission android:name="android.permission.CALL_PHONE" />
在PhoneStateListener里面看到调用完更好用:
Intent intent = new Intent(CallDispatcherActivity.this, CallDispatcherActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(intent);
其中 CallDispatcherActivity 是用户发起呼叫的活动(在我的例子中是出租车服务调度员)。这只是从顶部删除了 Android 电话应用程序,用户返回而不是我在这里看到的丑陋代码。
要回到你的Activity
,你需要倾听TelephonyStates
。一旦手机空闲,listener
您可以发送一个Intent
重新打开您的。Activity
至少我会这样做。
尝试使用:
finish();
在活动结束时。它会将您重定向到之前的活动。
使用时PhoneStateListener
,需要确保PHONE_STATE_IDLE
跟随 aPHONE_STATE_OFFHOOK
用于触发调用后要执行的操作。如果触发发生在看到PHONE_STATE_IDLE
,你最终会在调用之前完成它。因为你会看到状态变化PHONE_STATE_IDLE -> PHONE_STATE_OFFHOOK -> PHONE_STATE_IDLE.
// 在 setonclicklistener 中输入以下代码:
EditText et_number=(EditText)findViewById(R.id.id_of_edittext);
String my_number = et_number.getText().toString().trim();
Intent callIntent = new Intent(Intent.ACTION_CALL, Uri.parse(my_number));
startActivity(callIntent);
// 在清单中授予调用权限:
<uses-permission android:name="android.permission.CALL_PHONE"></uses-permission>
添加这是你的xml:android:autoLink="phone"
脚步:
Manifest.xml
1)在文件中添加所需的权限。
<!--For using the phone calls -->
<uses-permission android:name="android.permission.CALL_PHONE" />
<!--For reading phone call state-->
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
2)为手机状态变化创建一个监听器。
public class EndCallListener extends PhoneStateListener {
@Override
public void onCallStateChanged(int state, String incomingNumber) {
if(TelephonyManager.CALL_STATE_RINGING == state) {
}
if(TelephonyManager.CALL_STATE_OFFHOOK == state) {
//wait for phone to go offhook (probably set a boolean flag) so you know your app initiated the call.
}
if(TelephonyManager.CALL_STATE_IDLE == state) {
//when this state occurs, and your flag is set, restart your app
Intent i = context.getPackageManager().getLaunchIntentForPackage(
context.getPackageName());
//For resuming the application from the previous state
i.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
//Uncomment the following if you want to restart the application instead of bring to front.
//i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
context.startActivity(i);
}
}
}
3)在你的初始化监听器OnCreate
EndCallListener callListener = new EndCallListener();
TelephonyManager mTM = (TelephonyManager)this.getSystemService(Context.TELEPHONY_SERVICE);
mTM.listen(callListener, PhoneStateListener.LISTEN_CALL_STATE);
但是如果你想恢复你的应用程序的最后一个状态或从后面的堆栈中恢复它,那么替换FLAG_ACTIVITY_CLEAR_TOP
为FLAG_ACTIVITY_SINGLE_TOP
参考这个答案
@Dmitri Novikov,FLAG_ACTIVITY_CLEAR_TOP
清除新实例之上的所有活动实例。因此,它可能会在完成该过程之前结束旧实例。
Intent callIntent = new Intent(Intent.ACTION_CALL);
callIntent .setData(Uri.parse("tel:+91-XXXXXXXXX"));
startActivity(callIntent );
开始通话时,它看起来不错。
不过,android 11+ 和以下版本在将您的应用程序置于最前面是有区别的。
Android 10 或更低你需要启动一个新的 Intent,你只需使用 android 11+BringTaskToFront
在通话状态 IDLE:
if (Build.VERSION.SDK_INT >= 11) {
ActivityManager am = (ActivityManager) activity.getSystemService(Activity.ACTIVITY_SERVICE);
am.moveTaskToFront(MyActivity.MyActivityTaskId, ActivityManager.MOVE_TASK_WITH_HOME);
} else {
Intent intent = new Intent(activity, MyActivity.class);
activity.startActivity(intent);
}
我在MyActivity.MyActivityTaskId
对我的活动进行调用时这样设置,这不起作用,在您要返回的页面的父活动页面上设置此变量。
MyActivity.MyActivityTaskId = this.getTaskId();
MyActivityTaskId
是我的活动类的静态变量
public static int MyActivityTaskId = 0;
我希望这对你有用。我使用上面的代码有点不同,我在接听电话后立即打开我的应用程序,以便用户可以看到来电者的详细信息。
我也设置了一些东西AndroidManifest.xml
:
/*Dont really know if this makes a difference*/
<activity android:name="MyActivity" android:taskAffinity="" android:launchMode="singleTask" />
和权限:
<uses-permission android:name="android.permission.GET_TASKS" />
<uses-permission android:name="android.permission.REORDER_TASKS" />
如果或何时遇到困难,请提出问题。
要从应用程序调用,请使用简单的调用意图,之后如果您想收听通话状态,请使用以下代码
1]在你的课堂上实现这个 -
实现 AudioManager.OnAudioFocusChangeListener
2]使用覆盖的方法添加以下代码
AudioManager audioManager = (AudioManager) getSystemService(AUDIO_SERVICE); //public static final String AUDIO_SERVICE = "audio"; audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE); assert audioManager != null; audioManager.requestAudioFocus(this, AudioManager.STREAM_MUSIC, AudioManager.AUDIOFOCUS_GAIN); @Override public void onAudioFocusChange(int focusChange) { switch (focusChange) { case AudioManager.AUDIOFOCUS_LOSS: { //here you can pause your playing audio break; } case AudioManager.AUDIOFOCUS_LOSS_TRANSIENT: { //here you can pause your playing audio break; } case AudioManager.AUDIOFOCUS_LOSS_TRANSIENT_CAN_DUCK: { break; } case AudioManager.AUDIOFOCUS_GAIN: { //here you will return back to the activity when your call is finsihed //resume your audio here break; } } }
3]添加这个
@Override public void onDestroy() { audioManager.abandonAudioFocus(this); }