使用ViewGroup自定义数字键盘

最新推荐文章于 2025-05-29 18:09:28 发布

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最新推荐文章于 2025-05-29 18:09:28 发布

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文章标签： android layout encoding integer constructor class

本文链接：https://blog.youkuaiyun.com/suichukexun/article/details/7815497

版权

首先看效果图

1.继承viewGroup实现GirdDialpad控件

package com.android.dialpad;

import android.content.Context;
import android.content.res.TypedArray;
import android.util.AttributeSet;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup;

public class GridDialPad extends ViewGroup{
	int row=0;
	int colum=0;
	private int mHeight;

	public GridDialPad(Context context) {
		super(context);
		// TODO Auto-generated constructor stub
	}
	public GridDialPad(Context context ,AttributeSet atts){
		super(context, atts);
	}
	public GridDialPad(Context context,AttributeSet attrs, int defstyle){
		super(context, attrs, defstyle);
		TypedArray a=context.obtainStyledAttributes(attrs,R.styleable.GridDialPad);
		row=a.getInt(R.styleable.GridDialPad_row, 3);
		colum=a.getInt(R.styleable.GridDialPad_colum,3);
		Log.i("debug", "print"+"row="+row+",colum="+colum);
		a.recycle();
	}

	@Override
	protected void onLayout(boolean changed, int l, int t, int r, int b) {
		// TODO Auto-generated method stub
		int index=0;
		int y=(b-t)-mHeight+getPaddingTop();
		for (int i = 0; i < row; i++) {
			int x=getPaddingLeft();
			int btnHeight=getChildAt(index).getMeasuredHeight();
			for (int j = 0; j < colum; j++) {
				View child=getChildAt(index);
				int btnWidth=child.getMeasuredWidth();
				child.layout(x, y, x+btnWidth, y+btnHeight);
				x+=btnWidth;
				index++;
			}
			y+=btnHeight;
			
		}
		
	}
	
	@Override
	protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
		// TODO Auto-generated method stub
		//super.onMeasure(widthMeasureSpec, heightMeasureSpec);
		int totalwidth=0;
		int totalheight=0;
		int index=0;
		for (int i = 0; i < row; i++) {
			for (int j = 0; j < colum; j++) {
			 View view=getChildAt(index);
			 view.measure(MeasureSpec.UNSPECIFIED, MeasureSpec.UNSPECIFIED);
				if(i==0){
					totalwidth+=view.getMeasuredHeight();
				}
				i++;
			}
			totalheight=getChildAt(index).getMeasuredHeight();
		}
		
		int width=resolveSize(totalwidth, widthMeasureSpec);
		int height=resolveSize(totalheight, heightMeasureSpec);
		mHeight=height;
		setMeasuredDimension(width, height);
	}

}

2..layout布局中使用用自定义的GridDialPad

<?xml version="1.0" encoding="utf-8"?>
<com.android.dialpad.GridDialPad
    xmlns:android="http://schemas.android.com/apk/res/android"
      xmlns:dial="http://schemas.android.com/apk/res/com.android.dialpad"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    dial:row="3"
    dial:colum="3"
     >
   
        <ImageButton
            android:id="@+id/imageButton1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
          
            android:background="@drawable/dial_1" />

        <ImageButton
            android:id="@+id/imageButton2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:background="@drawable/dial_2" 
              />

        <ImageButton
            android:id="@+id/imageButton3"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
          
            android:background="@drawable/dial_3" />
     
 


        <ImageButton
            android:id="@+id/imageButton4"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
           
            android:background="@drawable/dial_4" />

        <ImageButton
            android:id="@+id/imageButton5"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:background="@drawable/dial_5"
            />

        <ImageButton
            android:id="@+id/imageButton6"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:background="@drawable/dial_6"
            />


   

        <ImageButton
            android:id="@+id/imageButton7"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:background="@drawable/dial_7"
             />

        <ImageButton
            android:id="@+id/imageButton9"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:background="@drawable/dial_8"
             />

        <ImageButton
            android:id="@+id/imageButton8"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:background="@drawable/dial_9" 
            />


</com.android.dialpad.GridDialPad >

3.界面布局文件mian.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout  xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent">
       <EditText
        android:id="@+id/editText1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:layout_marginLeft="26dp"
        android:layout_marginTop="38dp"
        android:ems="10">

    </EditText>
    <include layout="@layout/dialpad"
        android:layout_width="match_parent"
        android:layout_alignParentBottom="true"
        
        android:layout_height="wrap_content"
        />

 

 </RelativeLayout>

4.Activity实现

package com.android.dialpad;


import android.app.Activity;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.EditText;

public class NumberDialPadActivity extends Activity implements OnClickListener {
    /** Called when the activity is first created. */
	EditText text;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        text=(EditText)findViewById(R.id.editText1);
        setupDial();
    }
    private void  setupDial(){
    	findViewById(R.id.imageButton1).setOnClickListener(this);
    	findViewById(R.id.imageButton2).setOnClickListener(this);
    	findViewById(R.id.imageButton3).setOnClickListener(this);
    	findViewById(R.id.imageButton4).setOnClickListener(this);
    	findViewById(R.id.imageButton5).setOnClickListener(this);
    	findViewById(R.id.imageButton6).setOnClickListener(this);
    	
    	findViewById(R.id.imageButton7).setOnClickListener(this);
    	findViewById(R.id.imageButton8).setOnClickListener(this);
    	findViewById(R.id.imageButton9).setOnClickListener(this);
    	
    }
	public void onClick(View v) {
		// TODO Auto-generated method stub
		switch (v.getId()) {
		case R.id.imageButton1:
			keyPressed(KeyEvent.KEYCODE_1);
			break;
case R.id.imageButton2:
	keyPressed(KeyEvent.KEYCODE_2);
			break;
case R.id.imageButton3:
	keyPressed(KeyEvent.KEYCODE_3);
	break;
case R.id.imageButton4:
	keyPressed(KeyEvent.KEYCODE_4);
	break;
case R.id.imageButton5:
	keyPressed(KeyEvent.KEYCODE_5);
	break;
	
case R.id.imageButton6:
	keyPressed(KeyEvent.KEYCODE_6);
	break;
case R.id.imageButton7:
	keyPressed(KeyEvent.KEYCODE_7);
	break;
case R.id.imageButton8:
	keyPressed(KeyEvent.KEYCODE_8);
	break;
case R.id.imageButton9:
	keyPressed(KeyEvent.KEYCODE_9);
	break;
		default:
			break;
		}
		
	}
	
	private void keyPressed(int keyCode){
		KeyEvent event=new KeyEvent(KeyEvent.ACTION_DOWN, keyCode);
		text.onKeyDown(keyCode, event);
		
	}
}

其它文件

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <!-- 自定属性 -->
  <declare-styleable name="GridDialPad">  
     <attr name="row" format="integer" />   
      <attr name="colum" format="integer" />   
  </declare-styleable>
    
</resources>

代码下载http://download.youkuaiyun.com/detail/androidchuxueze/4467439