用自定义view实现一个自定义输入框

自定义输入框的View

package com.fenghongzhang.day017;

import android.content.Context;
import android.content.res.TypedArray;
import android.text.InputType;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.LinearLayout;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;

public class InputView extends LinearLayout {
     
    private int inputview_input_icon;
    private String inputview_input_hint;
    private boolean inputview_is_pass;
    private View inflate;
    ImageView imageView;
    EditText editText;

    public InputView(@NonNull Context context) {
     
        super(context);
    }

    public InputView(@NonNull Context context, @Nullable AttributeSet attrs) {
     
        super(context, attrs);
        init(context,attrs);
    }


    public void init(Context context,AttributeSet attr){
     
        if(attr==null){
     
            return;
        }
        TypedArray typedArray = context.obtainStyledAttributes(attr, R.styleable.InputView);
        inputview_input_icon = typedArray.getResourceId(R.styleable.InputView_input_icon, R.mipmap.ic_launcher);
        inputview_input_hint = typedArray.getString(R.styleable.InputView_input_hint);
        inputview_is_pass = typedArray.getBoolean(R.styleable.InputView_is_pass, false);
        //释放资源
        typedArray.recycle();

        //加载.
        inflate = LayoutInflater.from(context).inflate(R.layout.inputview, this, false);
        imageView=  (ImageView)inflate.findViewById(R.id.icon);
        editText=  (EditText)inflate.findViewById(R.id.text);
        
        imageView.setImageResource(inputview_input_icon);
        editText.setText(inputview_input_hint);
        //设置样式,是不是密文格式,可以没有.
        editText.setInputType(inputview_is_pass? InputType.TYPE_CLASS_TEXT|InputType.TYPE_TEXT_VARIATION_PASSWORD:InputType.TYPE_CLASS_PHONE);
        
        //添加到viewgroup中
        addView(inflate);
    }

    //用来取到输入框的值.
    public String getString(){
     
        return  editText.getText().toString().trim();
    }

}

输入框的布局

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="300dp"
    android:orientation="horizontal"
    android:layout_height="50dp"
    android:background="@drawable/back_color"
    android:layout_gravity="center_vertical"
    >
    <ImageView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@mipmap/ic_launcher"
        android:layout_gravity="center_vertical"
        android:id="@+id/icon"
        />

    <EditText
        android:layout_marginLeft="30dp"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="center_vertical"
        android:hint="username"
        android:textSize="30dp"
        android:background="@null"
        android:id="@+id/text"
        />
</LinearLayout>

属性文件

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <declare-styleable  name="InputView">
        <!--图片-->
        <attr name="input_icon" format="reference"></attr>
        <!--字体-->
        <attr name="input_hint" format="string"></attr>
        <!--是否密文-->
        <attr name="is_pass" format="boolean"></attr>
    </declare-styleable>
    
</resources>

布局中引用

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:my="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".Main3Activity">
    
    <com.fenghongzhang.day017.InputView
        android:layout_width="300dp"
        android:layout_height="50dp"
        my:input_icon="@mipmap/ic_launcher"
        my:input_hint="手机号"
        my:is_pass="true"
       >
    </com.fenghongzhang.day017.InputView>

</LinearLayout>

输入框圆角背景

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
    
    <corners android:radius="10dp" ></corners>
    <size android:width="100dp" android:height="30dp"></size>
    <solid android:color="@color/colorAccent"></solid>
</shape>

效果