EditText常见问题汇总

Posted 2022-12-14 lzy_tinyjoy

简述：

    android EditText常见的一写处理方法汇总，这里会不断更新。

EditView默认不显示软键盘

    方案一：在 AndroidMainfest.xml中选择哪个activity，设置windowSoftInputMode属性为 adjustUnspecified|stateHidden：

<activity
            android:name=".trace.view.SupplementReceiptActivity"
            android:exported="false"
            android:windowSoftInputMode="adjustUnspecified|stateHidden" />

    这种方案只是让键盘不显示，并不能让Edittext失去焦点。

    方案二:让 EditText失去焦点，使用EditText的clearFocus方法 

EditText edit=(EditText)findViewById(R.id.edit);
edit.clearFocus();

EditText设置DrawableRight和DrawableLeft 点击事件

      

         

在开发中经常会遇到这样的情况：点击搜索图标开始搜索输入框内容，OK，那就得重写EditText的onTouch()方法：

public class YCEditText extends EditText 
    private DrawableLeftListener mLeftListener;
    private DrawableRightListener mRightListener;

    final int DRAWABLE_LEFT = 0;
    final int DRAWABLE_TOP = 1;
    final int DRAWABLE_RIGHT = 2;
    final int DRAWABLE_BOTTOM = 3;

    public YCEditText(Context context, AttributeSet attrs) 
        super(context, attrs);
    

    public YCEditText(Context context, AttributeSet attrs, int defStyleAttr) 
        super(context, attrs, defStyleAttr);
    

    public YCEditText(Context context) 
        super(context);
    

    public void setDrawableLeftListener(DrawableLeftListener listener) 
        this.mLeftListener = listener;
    

    public void setDrawableRightListener(DrawableRightListener listener) 
        this.mRightListener = listener;
    

    public interface DrawableLeftListener 
        public void onDrawableLeftClick(View view);
    

    public interface DrawableRightListener 
        public void onDrawableRightClick(View view);
    

    @Override
    public boolean onTouchEvent(MotionEvent event) 
        switch (event.getAction()) 
            case MotionEvent.ACTION_UP:
                if (mRightListener != null) 
                    Drawable drawableRight = getCompoundDrawables()[DRAWABLE_RIGHT];
                    if (drawableRight != null && event.getRawX() >= (getRight() - drawableRight.getBounds().width())) 
                        mRightListener.onDrawableRightClick(this);
                        return true;
                    
                

                if (mLeftListener != null) 
                    Drawable drawableLeft = getCompoundDrawables()[DRAWABLE_LEFT];
                    if (drawableLeft != null && event.getRawX() <= (getLeft() + drawableLeft.getBounds().width())) 
                        mLeftListener.onDrawableLeftClick(this);
                        return true;
                    
                
                break;
        

        return super.onTouchEvent(event);
    

使用就像一个button一样，如下：

 ycEditText = (YCEditText) findViewById(R.id.xedit);
        ycEditText.setDrawableLeftListener(new YCEditText.DrawableLeftListener() 
            @Override
            public void onDrawableLeftClick(View view) 

                Toast.makeText(MainActivity.this, XView.getText().toString(), Toast.LENGTH_SHORT).show();
            
        );