Android的按钮按下效果

    package cn.zx.android;            import android.app.Activity;      import android.os.Bundle;      import android.view.KeyEvent;      import android.view.View;      import android.view.View.OnClickListener;      import android.view.View.OnKeyListener;      import android.widget.Button;            public class ButtonActivity extends Activity {          /** Called when the activity is first created. */          private Button btn;          @Override          public void onCreate(Bundle savedInstanceState) {              super.onCreate(savedInstanceState);              setContentView(R.layout.main);              btn=(Button)this.findViewById(R.id.btn);              btn.setOnClickListener(new OnClickListener(){                        @Override                  public void onClick(View arg0) {                      // TODO Auto-generated method stub                      System.out.println("btn pressed");                  }                                });          }      }

布局文件：

<?xml version="1.0" encoding="utf-8"?>      <selector xmlns:android="http://schemas.android.com/apk/res/android">          <item android:drawable="@drawable/android_pressed"                android:state_pressed="true" />          <item android:drawable="@drawable/android_focused"                android:state_focused="true" />          <item android:drawable="@drawable/android_normal" />      </selector>

    <pre class="xml" name="code">    <ImageButton               android:layout_width="fill_parent"               android:layout_height="wrap_content"              android:background="@drawable/ic_tab_artists"          /></pre>

更多相关文章

随机推荐