android - 如何以编程方式将气泡图像设置为android中textview的背景？

Question

msgList = (ListView)findViewById(R.id.msgList);
receivedMessages = new ArrayAdapter<String>(this, R.layout.message);

msgList.setAdapter(receivedMessages);
msg     = (EditText)findViewById(R.id.msg);

msg.setOnKeyListener(new OnKeyListener() {
    public boolean onKey(View v, int keyCode, KeyEvent event) 
    {           
        if ((event.getAction() == KeyEvent.ACTION_UP) &&
                      (keyCode == KeyEvent.KEYCODE_ENTER)) {
            postMessage();
            return true;
        }
        return false;
    }
});

private void postMessage()
{       
    String theNewMessage = msg.getText().toString();
    try{
        myThread.sendMessage(theNewMessage);
    }catch(Exception e){
        Log.e(TAG,"Cannot send message"+e.getMessage());
    }
    receivedMessages.add(theNewMessage+":Me");

    msg.setText("");
    //receivedMessages.getContext().getString(sendmsg);
}

我想将背景气泡图像设置为字符串 result means theNewmessage。我在哪里得到我的结果。气泡图像根据其字符大小长度自动调整大小。

Answer 1

在您的 R.layout.message 中，将布局的背景设置为您要使用的气泡图像。如果您使用 9-patch 图像，它将自行调整大小。

http://developer.android.com/guide/developing/tools/draw9patch.html

http://www.higherpass.com/Android/Tutorials/Android-9-Patch-Scaled-Png-Image-Guide/