将 Action 添加到 IntentFilter 以处理 Phone 状态更改
addAction to IntentFilter to handle Phone State Change
我想接听来电。
我知道您必须在 AndroidManifest 中授予权限并设置接收器
<uses-permission android:name="android.permission.READ_PHONE_STATE"/>
和
<receiver ...
<intent-filter>
<action android:name="android.intent.action.PHONE_STATE" />...
但是,在我的项目中,我通过代码设置了接收器,
IntentFilter filter = new IntentFilter();
filter.addAction( ... );
registerReceiver(broadcastReceiver, filter);
我在addAction
里面放了TelephonyManager.ACTION_PHONE_STATE_CHANGED
然后我用
创建了 BroadcastReceiver
private final BroadcastReceiver broadcastReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) { ...
然后,在其中,我根据 String action = intent.getAction();
的意图执行操作,然后检查它是哪个操作。
它非常适合蓝牙
filter.addAction(BluetoothAdapter.ACTION_DISCOVERY_STARTED);
和
switch (action) {
case BluetoothAdapter.ACTION_DISCOVERY_STARTED: ...
但它不检查 TelephonyManager.ACTION_PHONE_STATE_CHANGED
。
所以,我的问题是:
如何设置动作(addAction()
)来监听状态变化?
TelephonyManager.ACTION_PHONE_STATE_CHANGED
不对吗?
如果我放弃并在 AndroiManifest 中设置接收器,我将如何设置蓝牙过滤器?我正在使用
BluetoothDevice.ACTION_FOUND
BluetoothAdapter.ACTION_DISCOVERY_STARTED
BluetoothAdapter.ACTION_DISCOVERY_FINISHED
首先在您的 activity
中注册接收者
this.registerReceiver(this.broadcastReceiver, new IntentFilter(TelephonyManager.ACTION_PHONE_STATE_CHANGED));
这是广播接收器:
private BroadcastReceiver broadcastReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String state = intent.getStringExtra(TelephonyManager.EXTRA_STATE);
if (state == null) {
//Outgoing call
String number = intent.getStringExtra(Intent.EXTRA_PHONE_NUMBER);
Log.e("tag", "Outgoing number : " + number);
} else if (state.equals(TelephonyManager.EXTRA_STATE_OFFHOOK)) {
Log.e("tag", "EXTRA_STATE_OFFHOOK");
} else if (state.equals(TelephonyManager.EXTRA_STATE_IDLE)) {
Log.e("tag", "EXTRA_STATE_IDLE");
} else if (state.equals(TelephonyManager.EXTRA_STATE_RINGING)) {
//Incoming call
String number = intent.getStringExtra(TelephonyManager.EXTRA_INCOMING_NUMBER);
Log.e("tag", "Incoming number : " + number);
} else
Log.e("tag", "none");
}
};
在 onCreate()
方法中创建此对象:
tMg =(TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE);
listener = new PhoneStateListener{
onCallStateChanged(int state, String incomingNumber){
switch(state){
case EXTRA_STATE_RINGING:
// phone is ringing
break;
case EXTRA_STATE_OFFHOOK:
// phone is offhook
break;
case EXTRA_STATE_IDLE:
// phone is idle
break;
}
}
}
在 onStart()
中注册您的监听器:
tMg.listen(listener, PhoneStateListener.LISTEN_CALL_STATE);
在 onStop()
中注销您的侦听器:
tMg.listen(listener, PhoneStateListener.LISTEN_NONE);
我想接听来电。
我知道您必须在 AndroidManifest 中授予权限并设置接收器
<uses-permission android:name="android.permission.READ_PHONE_STATE"/>
和
<receiver ...
<intent-filter>
<action android:name="android.intent.action.PHONE_STATE" />...
但是,在我的项目中,我通过代码设置了接收器,
IntentFilter filter = new IntentFilter();
filter.addAction( ... );
registerReceiver(broadcastReceiver, filter);
我在addAction
里面放了TelephonyManager.ACTION_PHONE_STATE_CHANGED
然后我用
private final BroadcastReceiver broadcastReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) { ...
然后,在其中,我根据 String action = intent.getAction();
的意图执行操作,然后检查它是哪个操作。
它非常适合蓝牙
filter.addAction(BluetoothAdapter.ACTION_DISCOVERY_STARTED);
和
switch (action) {
case BluetoothAdapter.ACTION_DISCOVERY_STARTED: ...
但它不检查 TelephonyManager.ACTION_PHONE_STATE_CHANGED
。
所以,我的问题是:
如何设置动作(addAction()
)来监听状态变化?
TelephonyManager.ACTION_PHONE_STATE_CHANGED
不对吗?
如果我放弃并在 AndroiManifest 中设置接收器,我将如何设置蓝牙过滤器?我正在使用
BluetoothDevice.ACTION_FOUND
BluetoothAdapter.ACTION_DISCOVERY_STARTED
BluetoothAdapter.ACTION_DISCOVERY_FINISHED
首先在您的 activity
中注册接收者this.registerReceiver(this.broadcastReceiver, new IntentFilter(TelephonyManager.ACTION_PHONE_STATE_CHANGED));
这是广播接收器:
private BroadcastReceiver broadcastReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String state = intent.getStringExtra(TelephonyManager.EXTRA_STATE);
if (state == null) {
//Outgoing call
String number = intent.getStringExtra(Intent.EXTRA_PHONE_NUMBER);
Log.e("tag", "Outgoing number : " + number);
} else if (state.equals(TelephonyManager.EXTRA_STATE_OFFHOOK)) {
Log.e("tag", "EXTRA_STATE_OFFHOOK");
} else if (state.equals(TelephonyManager.EXTRA_STATE_IDLE)) {
Log.e("tag", "EXTRA_STATE_IDLE");
} else if (state.equals(TelephonyManager.EXTRA_STATE_RINGING)) {
//Incoming call
String number = intent.getStringExtra(TelephonyManager.EXTRA_INCOMING_NUMBER);
Log.e("tag", "Incoming number : " + number);
} else
Log.e("tag", "none");
}
};
在 onCreate()
方法中创建此对象:
tMg =(TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE);
listener = new PhoneStateListener{
onCallStateChanged(int state, String incomingNumber){
switch(state){
case EXTRA_STATE_RINGING:
// phone is ringing
break;
case EXTRA_STATE_OFFHOOK:
// phone is offhook
break;
case EXTRA_STATE_IDLE:
// phone is idle
break;
}
}
}
在 onStart()
中注册您的监听器:
tMg.listen(listener, PhoneStateListener.LISTEN_CALL_STATE);
在 onStop()
中注销您的侦听器:
tMg.listen(listener, PhoneStateListener.LISTEN_NONE);