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今天android项目里突然要做一个滑动解锁的控件，nm,ui出图就喜欢按照IOS上的控件来，这次也不例外，不过IOS上的滑动解锁效果确实还是不错。好了，废话不多说，上代码。。。关键的View代码SlidingSeekBar.java/** * 描述：自定义滑动解锁（横向的）seekBar * 特点：自定义后seekBar只能滑动并禁用点击 * 最关键的就是设置flag * Created by ruihe on 2016/5/28. */ public class SlidingSeekBar extends SeekBar implements SeekBar.OnSeekBarChangeListener, View.OnTouchListener { private Context mContext; /** * seekBar是否滑动的判断标志，默认为false */ private boolean isSlide; /** * 每次手指按下时处在屏幕上的横坐标 */ private int mStartTouchX; /** * seekBar的状态监听 */ private OnSeekBarStatusListener mOnSeekBarStatusListener; private SlidingSeekBar mSlideSeekBar; private TextView tvHint; private View viewBg; private int[] mLocation = new int[2]; public SlidingSeekBar(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); } public SlidingSeekBar(Context context) { super(context); } public SlidingSeekBar(Context context, AttributeSet attrs) { super(context, attrs); } public void initSlideToRightUnlock(Context context, TextView tvHint, View v, OnSeekBarStatusListener onSeekBarStatusListener) { mSlideSeekBar = this; this.mContext = context; this.tvHint = tvHint; this.viewBg = v; this.mOnSeekBarStatusListener = onSeekBarStatusListener; mSlideSeekBar.setProgress(0); viewBg.setAlpha(0.0f); tvHint.setAlpha(1.0f); setOnTouchListener(this); setOnSeekBarChangeListener(this); } @Override public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) { if (!fromUser) return; if (!isSlide) { seekBar.setProgress(0); } else { seekBar.setProgress(progress); float tempProgress = progress * 0.01f; viewBg.setAlpha(tempProgress); tvHint.setAlpha(1.0f - tempProgress * 2.0f); } } @Override public void onStartTrackingTouch(SeekBar seekBar) { } @Override public void onStopTrackingTouch(SeekBar seekBar) { if (seekBar.getProgress() < 80) {//判断小于80的不算unlock操作 seekBar.setProgress(0); tvHint.setAlpha(1.0f); viewBg.setAlpha(0.0f); } else { seekBar.setProgress(100); tvHint.setAlpha(0.0f); viewBg.setAlpha(1.0f); mOnSeekBarStatusListener.onFinishUnlock(); } } @Override public boolean onTouch(View v, MotionEvent event) { int action = event.getAction(); switch (action) { case MotionEvent.ACTION_DOWN: isSlide = false; mStartTouchX = (int) event.getX(); break; case MotionEvent.ACTION_MOVE: mSlideSeekBar.getLocationOnScreen(mLocation); int mSeekBarX = mLocation[0]; int seekBarThumbLeft = mSeekBarX + DensityUtil.dip2px(mContext, 80) + mSlideSeekBar.getThumbOffset(); if (mStartTouchX < seekBarThumbLeft) { isSlide = true; } break; case MotionEvent.ACTION_UP: isSlide = false; break; default: break; } return false; } /** * seekBar滑动完成监听 */ public interface OnSeekBarStatusListener { void onFinishUnlock(); } }示例Fragment当然无论Activity还是Fragment都无所谓，这里我是继承了自己BaseFragment,这里并没有必须要求的意思，只需要实现滑动解锁完成的接口SlidingSeekBar.OnSeekBarStatusListener即可/** * 描述：滑动解锁 * Created by ruihe on 2016/5/28. */ public class FragmentThree extends BaseFragment implements SlidingSeekBar.OnSeekBarStatusListener { private View mView; private View viewBg; private TextView tvSlideToRightHint; private SlidingSeekBar slideSeekBar; private Handler mHandler = new Handler() { @Override public void handleMessage(Message msg) { super.handleMessage(msg); slideSeekBar.setProgress(0); tvSlideToRightHint.setAlpha(1.0f); viewBg.setAlpha(0.0f); } }; @Override public void onAttached() { } @Override public void getFragmentView(View view, Bundle savedInstanceState) { mView = view; initView(); initListener(); bindData(); } @Override public int getContentViewId() { return R.layout.fragment_three; } private void initView() { viewBg = mView.findViewById(R.id.view_bg); tvSlideToRightHint = (TextView) mView.findViewById(R.id.tv_slide_to_right); slideSeekBar = (SlidingSeekBar) mView.findViewById(R.id.seek_bar); } private void initListener() { slideSeekBar.initSlideToRightUnlock(holder, tvSlideToRightHint, viewBg, this); } private void bindData() { holder.mTitleView.removeAllMenu(); holder.mTitleView.setTitle(R.string.main_third); } @Override public void onDetached() { } @Override public void onFinishUnlock() { Toast.makeText(holder, "恭喜，解锁成功！", Toast.LENGTH_SHORT).show(); mHandler.sendEmptyMessageDelayed(0, 3000); } }<span style="font-family: Arial, Helvetica, sans-serif;"> </span><span style="font-family:Arial, Helvetica, sans-serif;">布局文件</span><pre name="code" class="java">fragment_three.xml：</pre><pre name="code" class="java"><pre name="code" class="html"><?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical"> <TextView android:layout_width="match_parent" android:layout_height="wrap_content" android:gravity="center_horizontal" android:padding="5dp" android:text="seekBar滑动解锁" /> <RelativeLayout android:layout_width="match_parent" android:layout_height="match_parent" android:layout_gravity="center"> <View android:id="@+id/view_bg" android:layout_width="match_parent" android:layout_height="match_parent" android:background="#4c000000" /> <RelativeLayout android:layout_width="280dp" android:layout_height="60dp" android:layout_alignParentBottom="true" android:layout_centerHorizontal="true" android:layout_marginBottom="30dp"> <com.ruihe.demo.common.utils.view.SlidingSeekBar android:id="@+id/seek_bar" style="@style/style_slide_to_right_unlock" android:layout_width="280dp" android:layout_height="60dp" android:padding="0dp" /> <TextView android:id="@+id/tv_slide_to_right" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_marginLeft="80dp" android:gravity="center" android:text="右滑解锁" android:textColor="#CCFFFFFF" android:textSize="18sp" /> </RelativeLayout> </RelativeLayout> </LinearLayout>seekBar的样式：
style_slide_to_right_unlock.xml：</pre><pre name="code" class="html"><pre name="code" class="html"><pre name="code" class="html"> <!--滑动截图的Style--> <style name="style_slide_to_right_unlock" parent="@android:style/Widget.SeekBar"> <item name="android:maxHeight">280dp</item> <item name="android:minHeight">280dp</item> <item name="android:maxWidth">60dp</item> <item name="android:minWidth">60dp</item> <item name="android:indeterminateOnly">false</item> <item name="android:indeterminateDrawable"> @android:drawable/progress_indeterminate_horizontal </item> <item name="android:progressDrawable">@drawable/shape_map_shot</item> <item name="android:thumb">@drawable/ic_map_slide</item> <item name="android:thumbOffset">-3dp</item> </style></pre><pre name="code" class="html"><pre name="code" class="html">其中@drawable/shape_map_shot为底色背景这里是用shape画的<pre name="code" class="html">shape_map_shot.xml<pre name="code" class="html"><pre name="code" class="html"><?xml version="1.0" encoding="utf-8"?> <shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle"> <corners android:radius="50dp" /> <solid android:color="#292d37" /> </shape></pre><pre name="code" class="html">@drawable/ic_map_slide为上层滑动的拇指图标：</pre><pre><img src="https://img-blog.csdn.net/20160530110256676?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" alt="" />
好的这样就可以了。附上效果图
![seekBar实现滑动解锁[通俗易懂]](https://javaforall.cn/wp-content/themes/justnews/themer/assets/images/lazy.png)
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![seekBar实现滑动解锁[通俗易懂]](http://javaforall.cn/synimg/85672966-a7f0-4baa-954b-1c3b76e98b4b20220617fe7221b1-af46-46df-9aa6-0aa81e3f0bea1.jpg)