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Android switch button OFF state.png (78.55 KB, 下載次數: 4)

2013-10-17 14:51 上傳

Android switch button ON state.png (81.21 KB, 下載次數: 4)

2013-10-17 14:51 上傳

實作:
Layout檔:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity"
android:padding="5dp">

<Switch
      android:id="@+id/mySwitch"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_alignParentLeft="true"
      android:layout_alignParentTop="true"
      android:layout_marginTop="20dp"
      android:text="Play with the Switch" />

<TextView
      android:id="@+id/switchStatus"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_alignParentLeft="true"
      android:layout_below="@+id/mySwitch"
      android:layout_marginTop="22dp"
      android:text="Medium Text"
      android:textAppearance="?android:attr/textAppearanceMedium" />

</RelativeLayout>

Activity:
package com.as400samplecode;

import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.Switch;
import android.widget.TextView;

public class MainActivity extends Activity {

private TextView switchStatus;
private Switch mySwitch;

@Override
protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);

  switchStatus = (TextView) findViewById(R.id.switchStatus);
  mySwitch = (Switch) findViewById(R.id.mySwitch);

  //set the switch to ON
  mySwitch.setChecked(true);
  //attach a listener to check for changes in state
  mySwitch.setOnCheckedChangeListener(new OnCheckedChangeListener() {

@Override
public void onCheckedChanged(CompoundButton buttonView,
   boolean isChecked) {

if(isChecked){
   switchStatus.setText("Switch is currently ON");
}else{
   switchStatus.setText("Switch is currently OFF");
}

}
  });

  //check the current state before we display the screen
  if(mySwitch.isChecked()){
switchStatus.setText("Switch is currently ON");
  }
  else {
switchStatus.setText("Switch is currently OFF");
  }
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
  // Inflate the menu; this adds items to the action bar if it is present.
  getMenuInflater().inflate(R.menu.activity_main, menu);
  return true;
}

}

出處:http://www.mysamplecode.com/2013/04/android-switch-button-example.html

作者: henny7749 時間: 2016-1-23 13:03
是點擊後更換圖片及文字及的效果嗎?

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