blocks|key|5546333|text|您可能希望在main.xml中添加类似以下内容的内容：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5546334|<Button+android:id="@%2Bid/helloButton"+android:layout_height="wrap_content"+android:layout_width="wrap_content"+text="Hello+Button"+/>|code-block|syntax|javascript|5546335|然后在你的“启动器”活动中，你需要分配一个处理程序来处理点击，等等。|5546336|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

You probably want to add something like the following to your main.xml:

<pre><code>&lt;Button android:id="@+id/helloButton" android:layout_height="wrap_content" android:layout_width="wrap_content" text="Hello Button" /&gt;
</code></pre>

Then in your 'Launcher' activity, you'll need to assign a handler to handle clicks, etc.

blocks|key|5546344|text|如果你想在默认的拨号器屏幕上这样做，那么我不认为这是不可能的，除非禁用拨号器的控制并使你的活动在拨号器上透明；用户将能够与你的活动进行交互，并且只能在单击后退按钮时使用拨号器。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5546345|您可能希望使用自定义设计。|5546346|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

If you want to do this on the default dialer screen then I don't think that's possible without disabling controls of the dialer and having your transparent activity over the dialer; user will be able to interact with your activity and can only use the dialer on clicking the back button. 

You might want to go with the custom design.

blocks|key|2336812|text|我也在寻找同样的功能，并找到了这个开源项目，http://code.google.com/p/incomingcallplus/|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2336813|还没有玩过它，但似乎做了你想要做的事情。|2336814|entityMap|0|LINK|mutability|MUTABLE|url|http://code.google.com/p/incomingcallplus/^0|M|16|0|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@$A|O|B|P|1|Q]]|C|$]]|$1|D|3|E|5|6|7|R|8|@]|9|@]|C|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|C|$]]]|G|$H|$5|I|J|K|C|$L|M]]]]

I was looking for the same funcionality and found this open source project, <a href="http://code.google.com/p/incomingcallplus/" rel="nofollow">http://code.google.com/p/incomingcallplus/</a>

Haven't played with it yet, but seems to do what you're looking for.

blocks|key|3434569|text|是和否。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3434570|不能，您不能向现有应用程序添加新按钮。但是，是的，您可以将该应用程序(在本例中为拨号器)替换为具有您想要的按钮的应用程序。当用户安装你的应用程序时，他们会选择使用你的应用程序还是内置的拨号器应用程序来拨打和接听电话。|3434571|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

Yes and No.

No, you can't add a new button to an existing app. But Yes, you can replace that app (in this case, the dialer) with one that has the button you want. When users install your app, they'll pick whether they want to use your app or the built-in dialer app to make and receive calls.

blocks|key|3434596|text|public+void+addInvitePopup(final+String+number,Context+c){
++++//check+if+pref+is+ok+with+invite+in+call
+++//+if(!Preferences.getInstance(c.getInviteInCall())){return+;+}
++++//+sets+the+WindowManager
++++WindowManager+wm+=+(WindowManager)+c.getSystemService(Context.WINDOW_SERVICE);

++++WindowManager.LayoutParams+params+=+new+WindowManager.LayoutParams(
++++++++++++LayoutParams.WRAP_CONTENT,
++++++++++++LayoutParams.WRAP_CONTENT,
++++++++++++WindowManager.LayoutParams.TYPE_SYSTEM_ALERT+%7C+
++++++++++++WindowManager.LayoutParams.TYPE_SYSTEM_OVERLAY,
++++++++++++WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL+%7C
++++++++++++WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE,
++++++++++++PixelFormat.TRANSLUCENT);
++++params.x+=+250;
++++params.height+=+LayoutParams.WRAP_CONTENT;
++++params.width+=+LayoutParams.WRAP_CONTENT;
++++params.format+=+PixelFormat.TRANSLUCENT;
+++++final+Context+ct+=c;

++++params.gravity+=+Gravity.TOP;
++++params.setTitle("Testing");

++++LinearLayout+ly+=+new+LinearLayout(c);
++++ly.setOrientation(LinearLayout.VERTICAL);

++++Button+inviteButton+=+new+Button(c);
++++inviteButton.setClickable(true);
++++inviteButton.setBackgroundDrawable(c.getResources().getDrawable(R.drawable.icon));
++++inviteButton.setOnClickListener(new+OnClickListener()+{

++++++++@Override
++++++++public+void+onClick(View+v)+{
++++++++++++Toast.makeText(v.getContext(),+"adding+to+blacklist..",+Toast.LENGTH_LONG).show();
++++++++++++v.setBackgroundDrawable(ct.getResources().getDrawable(R.drawable.images));
++++++++++++v.setClickable(false);
+++++++++++//+sendMessage(v,+number);

++++++++++++//Track+this+event:
++++++++++++//MixPanelTracking.setPropKeyValue(getApplicationContext(),+null,+null,+"Add+friend+-+During+Call");
++++++++}
++++});|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|3434597|另外，不要忘记在清单文件中添加权限:+android.permission.SYSTEM_ALERT_WINDOW|unstyled|3434598|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|J|8|@]|9|@]|A|$]]|$1|G|3|-4|5|F|7|K|8|@]|9|@]|A|$]]]|H|$]]

<pre><code>public void addInvitePopup(final String number,Context c){
 //check if pref is ok with invite in call
 // if(!Preferences.getInstance(c.getInviteInCall())){return ; }
 // sets the WindowManager
 WindowManager wm = (WindowManager) c.getSystemService(Context.WINDOW_SERVICE);

 WindowManager.LayoutParams params = new WindowManager.LayoutParams(
 LayoutParams.WRAP_CONTENT,
 LayoutParams.WRAP_CONTENT,
 WindowManager.LayoutParams.TYPE_SYSTEM_ALERT | 
 WindowManager.LayoutParams.TYPE_SYSTEM_OVERLAY,
 WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL |
 WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE,
 PixelFormat.TRANSLUCENT);
 params.x = 250;
 params.height = LayoutParams.WRAP_CONTENT;
 params.width = LayoutParams.WRAP_CONTENT;
 params.format = PixelFormat.TRANSLUCENT;
 final Context ct =c;

 params.gravity = Gravity.TOP;
 params.setTitle("Testing");

 LinearLayout ly = new LinearLayout(c);
 ly.setOrientation(LinearLayout.VERTICAL);

 Button inviteButton = new Button(c);
 inviteButton.setClickable(true);
 inviteButton.setBackgroundDrawable(c.getResources().getDrawable(R.drawable.icon));
 inviteButton.setOnClickListener(new OnClickListener() {

 @Override
 public void onClick(View v) {
 Toast.makeText(v.getContext(), "adding to blacklist..", Toast.LENGTH_LONG).show();
 v.setBackgroundDrawable(ct.getResources().getDrawable(R.drawable.images));
 v.setClickable(false);
 // sendMessage(v, number);

 //Track this event:
 //MixPanelTracking.setPropKeyValue(getApplicationContext(), null, null, "Add friend - During Call");
 }
 });
</code></pre>

also dont forget to add permission : android.permission.SYSTEM_ALERT_WINDOW in your manifest file

I'm in the process of developing an Android app for which I need to add a button on the incoming call screen. Is it possible to add a new button to the existing incoming call screen or should I create a custom screen specific to my app?

Edit:
I want to add a button in addition to the Answer and Decline buttons in the screen that appears when there is an incoming call.

Adding a button to the default incoming call screen in Android

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我正在开发一个Android应用程序，我需要在来电屏幕上添加一个按钮。是否可以将新按钮添加到现有来电屏幕，或者我是否应该创建一个特定于我的应用程序的自定义屏幕？编辑:我想添加一个按钮，除了接听和拒绝按钮在屏幕上出现时，有一个来电。

问在Android的默认来电屏幕上添加一个按钮
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