安卓：$ P $在通话过程中psenting的通知？ [英] Android: Presenting a notification during a call?
问题描述
我有一个广播接收器监听来电。我想调整的来电屏幕。现在，我可以present敬酒，并添加通知，通知栏（顺便说一句，用户可以拔不下来，因为在屏幕锁定，接受呼叫，它还挺吸收之前）。我试图以显示警报，但它崩溃 - 这是不允许的？有没有办法为code在广播接收机做其他的事情，比如修改调用者的头像，或给它一个名称（即使它没有在联系人存在）。远的不说，我的广播接收机截获一个电话 - 可以将它添加电话号码和一个自定义头像的联系人，这样他们将立即psented在呼叫屏幕$ P $？
你怎么看？
修改
我已经测试厂商的code，和它的工作，但它是不安全的改变从后台线程的用户界面，所以我试图调整自己的codeA位，使其线程安全的，但敬酒没有按'T出现的某些原因。你怎么看？
专用处理器处理器=新的处理程序（）;
私人无效showToast（）{
线程线程=新主题（空，doBackgroundThreadProcessing，背景）;
thread.start（）;
}
私人可运行doBackgroundThreadProcessing =新的Runnable（）{
公共无效的run（）{
backgroundThreadProcessing（）;
}
};
私人无效backgroundThreadProcessing（）{
handler.post（新的Runnable（）{
公共无效的run（）{
诠释计数= 0;
尝试{
而（计数小于10）{
toast.show（）;
视频下载（1850）;
算上++;
}
}
赶上（例外五）{
Log.e（LongToast，，E）;
}
}
}）;
}
您需要这样一个BroadcastReceiver：
公共类IncomingBroadcastReceiver扩展的BroadcastReceiver {
@覆盖
公共无效的onReceive（上下文的背景下，意图意图）{
MyLog.d（IncomingBroadcastReceiver：的onReceive：）;
字符串状态= intent.getStringExtra（TelephonyManager.EXTRA_STATE）;
MyLog.d（IncomingBroadcastReceiver：的onReceive：+状态）;
如果（state.equals（TelephonyManager.EXTRA_STATE_RINGING））
{
意图I =新的意图（背景下，IncomingCallActivity.class）;
i.putExtras（意向）;
i.addFlags（Intent.FLAG_ACTIVITY_NEW_TASK）;
context.startActivity（ⅰ）;
}
}
}
和在清单中注册到＆lt;作用机器人：名称=android.intent.action.PHONE_STATE＆GT;＆LT; /作用＆gt;
然后创建一个这样的活动：
公共类IncomingCallActivity延伸活动{
@覆盖
保护无效的onCreate（包savedInstanceState）{
MyLog.d（IncomingCallActivity：的onCreate：）;
// TODO自动生成方法存根
super.onCreate（savedInstanceState）;
。getWindow（）addFlags（WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE）;
。getWindow（）addFlags（WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL）;
的setContentView（R.layout.main）;
串号= getIntent（）getStringExtra（TelephonyManager.EXTRA_INCOMING_NUMBER）。
TextView的文字=（TextView的）findViewById（R.id.text）;
text.setText（+数字的来电）;
}
}
有这样的布局：
＆LT; XML版本=1.0编码=UTF-8＆GT？;
＆LT; TextView中的xmlns：机器人=http://schemas.android.com/apk/res/android机器人：ID =@ + ID /文
机器人：layout_width =match_parent机器人：layout_height =match_parent
机器人：重力=center_vertical | center_horizontal
机器人：文本=文本
机器人：windowBackground =@机器人：彩色/透明
机器人：windowIsTranslucent =真
机器人：windowAnimationStyle =@安卓风格/ Animation.Translucent＆GT;＆LT; / TextView的＆GT;
这将产生在来电屏幕的顶部上的半透明对话框样活性，其允许用户应答该呼叫（不与触摸事件干扰）。
I have a broadcast receiver that listens to incoming calls. And I want to tweak the incoming call screen. Right now I can present toasts and add notifications to the notification bar (BTW the user can't pull it down because the screen is locked, before accepting the call, which kinda sucks). I tried to show an alert but it crashed - is it not allowed? Is there a way for the code in the broadcast receiver to do other things, like change the avatar of the caller or give it a name (even if it doesn't exist in the contacts). Let's just say my broadcast receiver intercepts a call - can it add the phone number and a custom avatar to the contacts, so that they will immediately be presented in the call screen?
What do you think?
Edit
I have tested vendor's code, and it worked, but it is not safe to change the UI from a background thread, so I tried to tweak his code a bit to make it thread safe but the toast doesn't appear for some reason. What do you think?
private Handler handler = new Handler();
private void showToast() {
Thread thread = new Thread(null, doBackgroundThreadProcessing, "Background");
thread.start();
}
private Runnable doBackgroundThreadProcessing = new Runnable() {
public void run() {
backgroundThreadProcessing();
}
};
private void backgroundThreadProcessing() {
handler.post(new Runnable() {
public void run() {
int count = 0;
try{
while (count < 10) {
toast.show();
Thread.sleep(1850);
count++;
}
}
catch(Exception e){
Log.e("LongToast", "", e);
}
}
});
}
You need a BroadcastReceiver like that:
public class IncomingBroadcastReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
MyLog.d("IncomingBroadcastReceiver: onReceive: ");
String state = intent.getStringExtra(TelephonyManager.EXTRA_STATE);
MyLog.d("IncomingBroadcastReceiver: onReceive: " + state);
if (state.equals(TelephonyManager.EXTRA_STATE_RINGING))
{
Intent i = new Intent(context, IncomingCallActivity.class);
i.putExtras(intent);
i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(i);
}
}
}
And register it in the manifest to <action android:name="android.intent.action.PHONE_STATE"></action>.
Then create an Activity like that:
public class IncomingCallActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
MyLog.d("IncomingCallActivity: onCreate: ");
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL);
setContentView(R.layout.main);
String number = getIntent().getStringExtra(TelephonyManager.EXTRA_INCOMING_NUMBER);
TextView text = (TextView)findViewById(R.id.text);
text.setText("Incoming call from " + number);
}
}
which has this layout:
<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/text"
android:layout_width="match_parent" android:layout_height="match_parent"
android:gravity="center_vertical|center_horizontal"
android:text="text"
android:windowBackground="@android:color/transparent"
android:windowIsTranslucent="true"
android:windowAnimationStyle="@android:style/Animation.Translucent"></TextView>
This will produce a translucent dialog-like activity on top of the incoming call screen, that allows the user to answer the call (doesn't interfere with touch events).
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