如何在TextInputEdittext的复合可抽取物中处理OnClick事件

Question

如何在TextInputEditText的复合吸引物上检测单击事件？

Answer 1

使用以下TextInputEditText的Overriden版本，然后致电setOnDrawableClickedListener。

，如果您在编辑文本的末尾设置可绘制的绘制可能会比开始时更好，因为当前版本的TextInputLayout版本会在一开始时产生相当丑陋的结果。

样品布局将进一步下降。（特别注意android:drawablePadding="10dp"的使用）。

代码适用于Androidx，但您可以琐碎地回到AppCompat。

package com.twoplay.netplayer.controls;
import android.content.Context;
import android.graphics.Rect;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View;
import com.google.android.material.textfield.TextInputEditText;
public class TextInputEditTextEx extends TextInputEditText {
    private OnDrawableClickedListener onDrawableClickedListener;
    public TextInputEditTextEx(Context context) {
        super(context);
        init();
    }

    public TextInputEditTextEx(Context context, AttributeSet attrs) {
        super(context, attrs);
        init();
    }
    public TextInputEditTextEx(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        init();
    }
    private void init() {
        setOnTouchListener(new OnTouchListener() {
            private Rect hitBounds = new Rect();
            @Override
            public boolean onTouch(View v, MotionEvent event) {
                float x = event.getX();
                float y = event.getY();
                int hitDrawable = -1;
                if (x < getCompoundPaddingLeft())
                {
                    hitDrawable = 0;
                    hitBounds.set(0,0,getCompoundPaddingLeft(),getHeight());
                }
                if (x > getWidth()-getCompoundPaddingRight())
                {
                    hitDrawable = 2;
                    hitBounds.set(getCompoundPaddingRight(),0,getWidth(),getHeight());
                }
                if (hitDrawable != -1)
                {
                    int action = event.getAction();
                    if (action == MotionEvent.ACTION_UP)
                    {
                        onDrawableClicked(hitDrawable,hitBounds);
                    }
                    return true;
                }
                return false;
            }
        });
    }
    private void onDrawableClicked(int i, Rect bounds) {
        if (onDrawableClickedListener != null)
        {
            onDrawableClickedListener.onDrawableClicked(this,i,bounds);
        }
    }
    public interface OnDrawableClickedListener {
        void onDrawableClicked(View v, int drawable, Rect bounds);
    }
    public void setOnDrawableClickedListener(OnDrawableClickedListener listener)
    {
        this.onDrawableClickedListener = listener;
    }
}

样本布局：

<com.google.android.material.textfield.TextInputLayout
    android:id="@+id/playlist_layout"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:hint="@string/playlist_name" >
    <com.twoplay.netplayer.controls.TextInputEditTextEx
        android:id="@+id/playlist_text"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:inputType="textCapWords"
        android:drawableEnd="@drawable/ic_more_horiz_black_24dp"
        android:drawablePadding="10dp" />
</com.google.android.material.textfield.TextInputLayout>