Android自定义键盘 - 如何检测请求的键盘类型

Question

正在关注this tutorial我已经创建了一个完全可用的Android OS键盘。它是一个标准的QWERTY字母/数字。

我有数字键盘的第二个键盘标记。

似乎我无法检测是正在由文本输入框中指定什么类型的键盘。 edittext指定的类型为 editText.setInputType(InputType.TYPE_CLASS_TEXT); 但我的IME服务如何检测到这一点，以便它可以呈现正确的键盘？

public class MyKeybdIME extends InputMethodService implements KeyboardView.OnKeyboardActionListener { 
    private KeyboardView kv; 
    private Keyboard keyboard; 
    private Keyboard numboard; 
    private boolean caps = false; 
    @Override 
    public View onCreateInputView() { 
     kv = (MKeyboardView)getLayoutInflater().inflate(R.layout.keyboard, null); 
     keyboard = new Keyboard(this, R.xml.qwertyfull); 
     numboard = new Keyboard(this, R.xml.num); 

//  InputMethodManager imm = (InputMethodManager)  getSystemService(Context.INPUT_METHOD_SERVICE); 
//How can you detect what is being asked for?  
//  imm.toggleSoftInput(InputMethodManager.SHOW_FORCED,0); 
// Or am I on the wrong path for this part? 


     kv.setKeyboard(keyboard);//... Or numboard when the entry requests a numeric keyboard 
     kv.setOnKeyboardActionListener(this); 
     return kv; 
    } 

Answer 1

您可以在您的自定义键盘类中覆盖onStartInput。以下是取自sample Android keyboard的相关代码：

@Override public void onStartInput(EditorInfo attribute, boolean restarting) { 
    // ... 

    switch (attribute.inputType & InputType.TYPE_MASK_CLASS) { 
     case InputType.TYPE_CLASS_NUMBER: 
      // ... 
      break; 
     case InputType.TYPE_CLASS_DATETIME: 
      // ... 
      break; 
     case InputType.TYPE_CLASS_PHONE: 
      // ... 
      break; 
     case InputType.TYPE_CLASS_TEXT: 
      // ... 
      break; 
     default: 
      // ... 
    } 

    // ... 
}