android - 使用没有edittext android的customview获取输入文本

Question

我已经创建了自定义 View 。每当用户双击 View 时，它应该显示键盘并且用户可以绘制新文本。

Holder 是一个扩展 View 的自定义 View 。但它正在显示键盘。如何获取文本？

 public Holder(Context context, AttributeSet attrs) {
    super(context, attrs);
    Log.e(TAG,"EXE");
    imm = (InputMethodManager)
           context. getSystemService(Context.INPUT_METHOD_SERVICE);



 public boolean onDoubleTap(MotionEvent e) {        

        View view = Holder.this.getRootView();
        imm.showSoftInput(view, InputMethodManager.SHOW_FORCED);
     // imm.showSoftInput(Holder.this, InputMethodManager.SHOW_FORCED);  not working

Answer 1

这是一个自定义的FrameLayout，当你点击它时，它会显示soft-keyboard，你可以输入任何东西，当你按下回车键时，它会显示一个toast文本与您输入的内容，我希望它能给您带来想法:

public class MyCustomFrameLayout extends FrameLayout {

    String mText;
    public MyCustomFrameLayout(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        init();
    }
    public MyCustomFrameLayout(Context context, AttributeSet attrs) {
        super(context, attrs);
        init();
    }
    public MyCustomFrameLayout(Context context) {
        super(context);
        init();
    }
    @Override
    public boolean onCheckIsTextEditor() {
        return true;
    }
    @Override
    public InputConnection onCreateInputConnection(EditorInfo outAttrs) {
            BaseInputConnection fic = new BaseInputConnection(this, false);
            outAttrs.actionLabel = null;
            outAttrs.inputType = InputType.TYPE_NULL;
            outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE;
            return fic;      
    }
    public void init(){
        setFocusable(true);
        setFocusableInTouchMode(true);
        mText ="";
        setOnKeyListener(new OnKeyListener() {
            public boolean onKey(View v, int keyCode, KeyEvent event) {
                if (event.getAction() == KeyEvent.ACTION_DOWN) {
                    if((keyCode >= KeyEvent.KEYCODE_A) && (keyCode <= KeyEvent.KEYCODE_Z)) {
                        mText = mText + (char) event.getUnicodeChar();
                        return true;
                    }
                    else if(keyCode >= KeyEvent.KEYCODE_ENTER){                 
                        Toast.makeText(getContext(), "The text is: " + mText , Toast.LENGTH_LONG).show();
                         return true;
                    }
                }
                return false;
            }
        }); 
    }
    @Override
    public boolean onTouchEvent(MotionEvent event) {
        super.onTouchEvent(event);
        if (event.getAction() == MotionEvent.ACTION_DOWN) {
            InputMethodManager imm = (InputMethodManager) getContext()
                    .getSystemService(Context.INPUT_METHOD_SERVICE);
            imm.showSoftInput(this, InputMethodManager.SHOW_FORCED);
        }
        return true;
    }
    public String getText(){        
        return mText;
    }
}