我试图在接到电话后显示吐司，我已经实现了注册广播接收器所需的所有必要的东西，但它没有显示吐司。我想在Marshmallow设备上运行这个程序
MyCallReceiver.java -
package com.suhas.callreceiver;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.telephony.TelephonyManager;
import android.util.Log;
import android.widget.Toast;
public class MyCallReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
if (intent.getStringExtra(TelephonyManager.EXTRA_STATE).equals(TelephonyManager.EXTRA_STATE_RINGING)) {
// This code will execute when the phone has an incoming call
// get the phone number
String incomingNumber = intent.getStringExtra(TelephonyManager.EXTRA_INCOMING_NUMBER);
Toast.makeText(context, "Call from:" +incomingNumber, Toast.LENGTH_LONG).show();
Log.d("MyTrack call", "call receive");
} else if (intent.getStringExtra(TelephonyManager.EXTRA_STATE).equals(
TelephonyManager.EXTRA_STATE_IDLE))
{
Toast.makeText(context, "Detected call hangup event", Toast.LENGTH_LONG).show();
}
else if (intent.getStringExtra(TelephonyManager.EXTRA_STATE).equals(
TelephonyManager.EXTRA_STATE_OFFHOOK)) {
// This code will execute when the call is disconnected
}
}
}
AndroidManifest.xml -
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.suhas.msgmanager">
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
<application
android:allowBackup="true"
android:icon="@mipmap/msgis"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity
android:name=".MainActivity"
android:label="@string/app_name"
android:theme="@style/AppTheme.NoActionBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name="com.example.suhas.msgmanager.MyDialog" android:launchMode="singleTask"
android:theme="@android:style/Theme.Translucent" />
<service android:name="com.example.suhas.msgmanager.ChatHeadService"></service>
<receiver android:name=".MyCallReceiver">
<intent-filter>
<action android:name="android.intent.action.PHONE_STATE" />
</intent-filter>
</receiver>
<activity android:name=".AddMessageActivity">
</activity>
</application>
</manifest>
我有一个MainActivity，其中一个默认标签为Hello World。
答案 0 :(得分：7)
在Marshmallow版本的情况下，我们有一个名为Runtime权限的概念，它将在Activity内部进行，以便使用该权限。 运行时权限提供了一种在第一次运行活动时在运行时询问用户特定权限的方法。
这是你必须指定的两件事：
//为权限指定任何常数
public final static int MY_PERMISSIONS_REQUEST_READ_PHONE_STATE = 11;
//在OnCreate方法
中指定以下代码 @Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Here, thisActivity is the current activity
if (ContextCompat.checkSelfPermission(getApplicationContext(),
Manifest.permission.READ_PHONE_STATE)
!= PackageManager.PERMISSION_GRANTED) {
// Should we show an explanation?
if (ActivityCompat.shouldShowRequestPermissionRationale(this,
Manifest.permission.READ_CONTACTS)) {
} else {
ActivityCompat.requestPermissions(this,
new String[]{Manifest.permission.READ_PHONE_STATE},
MY_PERMISSIONS_REQUEST_READ_PHONE_STATE);
}
}
}
//指定此方法将弹出窗口，要求用户在运行时获得权限
@Override
public void onRequestPermissionsResult(int requestCode,
String permissions[], int[] grantResults) {
switch (requestCode) {
case MY_PERMISSIONS_REQUEST_READ_PHONE_STATE: {
// If request is cancelled, the result arrays are empty.
if (grantResults.length > 0
&& grantResults[0] == PackageManager.PERMISSION_GRANTED) {
} else {
}
return;
}
}
}
这将提供一种使用Marshmallow设备的方法
答案 1 :(得分：0)
您在接收器中提供了错误的包名称。
您应该如下定义接收器：
<receiver android:name="com.suhas.callreceiver.MyCallReceiver">
<intent-filter>
<action android:name="android.intent.action.PHONE_STATE" />
</intent-filter>
</receiver>
答案 2 :(得分：0)
根据Marshmallow在目标API 23或更高版本中，应用程序需要运行时权限或设备设置中的手动＆gt;＆gt;应用和GT;＆GT;选择您的应用＆gt;＆gt;许可
答案 3 :(得分：0)
我在我们的应用程序中成功实现了。从这里获取参考。
呼叫接收方法
public class CallReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
//Log.w("intent " , intent.getAction().toString());
TelephonyManager telephony = (TelephonyManager)context.getSystemService(Context.TELEPHONY_SERVICE);
MyPhoneStateListener customPhoneListener = new MyPhoneStateListener();
telephony.listen(customPhoneListener, PhoneStateListener.LISTEN_CALL_STATE);
Bundle bundle = intent.getExtras();
String phone_number = bundle.getString("incoming_number");
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;
}
if (phone_number == null || "".equals(phone_number)) {
return;
}
customPhoneListener.onCallStateChanged(context, state, phone_number);
Toast.makeText(context, "Phone Number " + phone_number , Toast.LENGTH_SHORT).show();
}}
Listener方法
public class MyPhoneStateListener extends PhoneStateListener {
private static int lastState = TelephonyManager.CALL_STATE_IDLE;
private static Date callStartTime;
private static boolean isIncoming;
public void onCallStateChanged(Context context, int state, String phoneNumber){
if(lastState == state){
//No change, debounce extras
return;
}
System.out.println("Number inside onCallStateChange : " + phoneNumber);
switch(state){
case TelephonyManager.CALL_STATE_RINGING:
isIncoming = true;
callStartTime = new Date();
Toast.makeText(context, "Incoming Call Ringing " + phoneNumber, Toast.LENGTH_SHORT).show();
break;
case TelephonyManager.CALL_STATE_OFFHOOK:
if(lastState != TelephonyManager.CALL_STATE_RINGING){
isIncoming = false;
callStartTime = new Date();
Toast.makeText(context, "Outgoing Call Started " + phoneNumber, Toast.LENGTH_SHORT).show();
}
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
Toast.makeText(context, "Ringing but no pickup" + phoneNumber + " Call time " + callStartTime +" Date " + new Date() , Toast.LENGTH_SHORT).show();
}
else if(isIncoming){
Toast.makeText(context, "Incoming " + phoneNumber + " Call time " + callStartTime , Toast.LENGTH_SHORT).show();
}
else{
Toast.makeText(context, "outgoing " + phoneNumber + " Call time " + callStartTime +" Date " + new Date() , Toast.LENGTH_SHORT).show();
}
break;
}
lastState = state;
}} }
获取完整的solution的参考