开发日记——手机安全卫士 Day02 2016-7-21 完成导航页面和切换功能

手机安全卫士 Day02 2016-7-21 完成导航页面和切换功能

导航页面底端使用RadioGroup和RadioButton控件。RadioButton背景使用了自定义的背景选择器，用于控制按钮点击时显示的颜色。

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_checked = "true" android:drawable="@drawable/circle_blue"/>
<item android:state_checked = "false" android:drawable="@drawable/circle_gray"/>
</selector>

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="oval">
<solid android:color="#acacac"/>
</shape>

<?xml version="1.0" encoding="utf-8"?>
<translate xmlns:android="http://schemas.android.com/apk/res/android"
android:fromXDelta="-100%p"
android:toXDelta="0"
android:fromYDelta="0"
android:toYDelta="0"
android:duration="500"
android:repeatCount="0"
>
</translate>

由于每一个界面都需要进行滑动，定义一个父类实现手势识别功能。

public abstract class BaseSetUpActivity extends Activity {public SharedPreferences sp;private GestureDetector mGestureDetector;@Overrideprotected void onCreate(Bundle savedInstanceState){super.onCreate(savedInstanceState);requestWindowFeature(Window.FEATURE_NO_TITLE);sp=getSharedPreferences("config",MODE_PRIVATE);mGestureDetector = new GestureDetector(this,new GestureDetector.SimpleOnGestureListener(){//e1:触碰 e2:离开//velocity速度 pix/s@Overridepublic boolean onFling(MotionEvent e1,MotionEvent e2,float velocityX,float velocityY){if(Math.abs(velocityX)<200){return true;}if(e2.getRawX()-e1.getRawX()>200){//从左向右showLast();overridePendingTransition(R.anim.last_in,R.anim.next_out);return true;}if(e1.getRawX()-e2.getRawX()>200){//从左向右showNext();overridePendingTransition(R.anim.next_in,R.anim.last_out);return true;}return super.onFling(e1,e2,velocityX,velocityY);}});}public abstract void showLast();public abstract void showNext();@Overridepublic boolean onTouchEvent(MotionEvent event){mGestureDetector.onTouchEvent(event);return super.onTouchEvent(event);}public void startActivityAndFinishActivity(Class<?> cls){Intent intent = new Intent(this,cls);startActivity(intent);finish();}}

页面4的按钮是一个ToggleButton，按钮背景可以通过自定义图片显示器控制

<?xml version="1.0" encoding="utf-8"?><selector xmlns:android="http://schemas.android.com/apk/res/android"><item android:state_checked="true" android:drawable="@drawable/swtch_btn_on"></item><item android:state_checked="false" android:drawable="@drawable/switch_btn_off"></item></selector>