<?xmlversion="1.0"encoding="utf-8"?> <LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="horizontal"><ImageView android:id="@+id/imageView1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center_vertical" android:paddingBottom="5dip" android:paddingLeft="40dip" android:paddingTop="5dip" android:src="@drawable/right_icon"/><TextView android:id="@+id/textView1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center_vertical" android:layout_marginLeft="8dip" android:text="确定" android:textColor="#000000"/></LinearLayout>接下来写一个类继承LinearLayout,导入刚刚的布局,并且设置需要的方法,从而使的能在代码中控制这个自定义控件内容的显示。
public class ImageBtn extendsLinearLayout {privateImageView imageView; privateTextView textView;publicImageBtn(Context context) { super(context); // TODO Auto-generated constructor stub } publicImageBtn(Context context, AttributeSet attrs) { super(context, attrs); // TODO Auto-generated constructor stub LayoutInflater inflater=(LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); inflater.inflate(R.layout.imagebtn,this); imageView=(ImageView) findViewById(R.id.imageView1); textView=(TextView)findViewById(R.id.textView1); }/** * 设置图片资源 */ publicvoidsetImageResource(intresId) { imageView.setImageResource(resId); }/** * 设置显示的文字 */ publicvoidsetTextViewText(String text) { textView.setText(text); }}在需要使用这个自定义控件的layout中加入这控件,只需要在xml中加入即可。<?xmlversion="1.0"encoding="utf-8"?> <LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="horizontal"><cn.com.karl.view.ImageBtn android:id="@+id/btn_right" android:layout_height="wrap_content" android:layout_width="wrap_content" android:background="@drawable/btn" /><cn.com.karl.view.ImageBtn android:id="@+id/btn_error" android:layout_marginLeft="5dp" android:layout_height="wrap_content" android:layout_width="wrap_content" android:background="@drawable/btn" /></LinearLayout>这里用到了背景图片 在drawable/btn.xml
<?xmlversion="1.0"encoding="utf-8"?> <selectorxmlns:android="http://schemas.android.com/apk/res/android"><itemandroid:state_focused="true"android:state_pressed="false"android:drawable="@drawable/btn_normal"></item> <itemandroid:state_pressed="true"android:drawable="@drawable/btn_white"></item> <itemandroid:state_checked="true"android:drawable="@drawable/btn_white"></item> <itemandroid:state_focused="false"android:state_pressed="false"android:drawable="@drawable/btn_normal"></item></selector>

public class IdentifyButtonActivity extendsActivity { privateImageBtn imageBtn1;privateImageBtn imageBtn2; @Override protectedvoidonCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); setContentView(R.layout.identifybutton);imageBtn1=(ImageBtn)this.findViewById(R.id.btn_right); imageBtn2=(ImageBtn)this.findViewById(R.id.btn_error); imageBtn1.setTextViewText("确定"); imageBtn2.setTextViewText("取消"); imageBtn1.setImageResource(R.drawable.right_icon); imageBtn2.setImageResource(R.drawable.error_icon);imageBtn1.setOnClickListener(newView.OnClickListener() {publicvoidonClick(View v) { // TODO Auto-generated method stub Toast.makeText(getApplicationContext(),"点击的正确按钮",1).show(); } });imageBtn2.setOnClickListener(newView.OnClickListener() {publicvoidonClick(View v) { // TODO Auto-generated method stub Toast.makeText(getApplicationContext(),"点击的错误按钮",1).show(); } }); } }最后看看我们自定义控件的效果吧!
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持脚本之家。