android 按任意键接听
时间: 2023-07-22 18:00:03 浏览: 57
在 Android 上,可以使用以下代码来实现按任意键接听电话:
```java
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.media.MediaButtonReceiver;
import android.telephony.PhoneStateListener;
import android.telephony.TelephonyManager;
import android.view.KeyEvent;
public class AnswerCallReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
if (Intent.ACTION_MEDIA_BUTTON.equals(intent.getAction())) {
KeyEvent event = intent.getParcelableExtra(Intent.EXTRA_KEY_EVENT);
if (event != null && event.getAction() == KeyEvent.ACTION_UP) {
TelephonyManager telephonyManager = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
if (telephonyManager != null) {
telephonyManager.listen(new PhoneStateListener() {
@Override
public void onCallStateChanged(int state, String incomingNumber) {
if (state == TelephonyManager.CALL_STATE_RINGING) {
try {
// 接听电话
Intent answerCallIntent = new Intent(Intent.ACTION_MEDIA_BUTTON);
answerCallIntent.putExtra(Intent.EXTRA_KEY_EVENT, new KeyEvent(KeyEvent.ACTION_UP, KeyEvent.KEYCODE_HEADSETHOOK));
context.sendOrderedBroadcast(answerCallIntent, null);
} catch (SecurityException e) {
e.printStackTrace();
}
}
}
}, PhoneStateListener.LISTEN_CALL_STATE);
}
}
}
}
}
```
以上代码创建了一个 BroadcastReceiver,用于接收按键事件。当收到按键事件时,判断事件为按键抬起动作后,监听电话状态。当电话状态为响铃状态时,发送接听电话的广播,以模拟按下耳机按钮的操作来接听电话。
请确保在 AndroidManifest.xml 文件中添加以下权限和接收器声明:
```xml
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS" />
<receiver android:name=".AnswerCallReceiver">
<intent-filter>
<action android:name="android.intent.action.MEDIA_BUTTON" />
</intent-filter>
</receiver>
```
这样,当按下任意键时,应该能够接听来电。请注意,由于安全限制,这种方式在某些 Android 版本上可能无法正常工作。