使用ViewGroup自定义数字键盘
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.csdn.net/detail/androidchuxueze/4467439