最近发现了一款可以为控件增加涟漪效果的github项目,可以提升应用的逼格啊,大家不妨引入到自己的项目中。该项目本身是android studio下面编译,我改成了eclipse下可以运行的项目,下面我们来看一下具体的用法吧!
1.RippleView.java:
[java] view plain copy
- /*
- * The MIT License (MIT)
- *
- * Copyright (c) 2014 Robin Chutaux
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
- package com.example.rippleeffectview;
- import com.example.test.R;
- import android.content.Context;
- import android.content.res.TypedArray;
- import android.graphics.Bitmap;
- import android.graphics.Canvas;
- import android.graphics.Paint;
- import android.graphics.PorterDuff;
- import android.graphics.PorterDuffXfermode;
- import android.graphics.Rect;
- import android.os.Handler;
- import android.util.AttributeSet;
- import android.view.GestureDetector;
- import android.view.MotionEvent;
- import android.view.View;
- import android.view.ViewGroup;
- import android.view.animation.Animation;
- import android.view.animation.ScaleAnimation;
- import android.widget.RelativeLayout;
- /**
- *
- * Date : 10/8/2014
- */
- public class RippleView extends RelativeLayout
- {
- private int WIDTH;
- private int HEIGHT;
- private int FRAME_RATE = 10;
- private int DURATION = 400;
- private int PAINT_ALPHA = 90;
- private Handler canvasHandler;
- private float radiusMax = 0;
- private boolean animationRunning = false;
- private int timer = 0;
- private int timerEmpty = 0;
- private int durationEmpty = -1;
- private float x = -1;
- private float y = -1;
- private int zoomDuration;
- private float zoomScale;
- private ScaleAnimation scaleAnimation;
- private Boolean hasToZoom;
- private Boolean isCentered;
- private Integer rippleType;
- private Paint paint;
- private Bitmap originBitmap;
- private int rippleColor;
- private View childView;
- private int ripplePadding;
- private GestureDetector gestureDetector;
- private Runnable runnable = new Runnable()
- {
- @Override
- public void run()
- {
- invalidate();
- }
- };
- public RippleView(Context context)
- {
- super(context);
- }
- public RippleView(Context context, AttributeSet attrs)
- {
- super(context, attrs);
- init(context, attrs);
- }
- public RippleView(Context context, AttributeSet attrs, int defStyle)
- {
- super(context, attrs, defStyle);
- init(context, attrs);
- }
- private void init(final Context context, final AttributeSet attrs)
- {
- if (isInEditMode())
- return;
- final TypedArray typedArray = context.obtainStyledAttributes(attrs, R.styleable.RippleView);
- rippleColor = typedArray.getColor(R.styleable.RippleView_rv_color, getResources().getColor(R.color.rippelColor));
- rippleType = typedArray.getInt(R.styleable.RippleView_rv_type, 0);
- hasToZoom = typedArray.getBoolean(R.styleable.RippleView_rv_zoom, false);
- isCentered = typedArray.getBoolean(R.styleable.RippleView_rv_centered, false);
- DURATION = typedArray.getInteger(R.styleable.RippleView_rv_rippleDuration, DURATION);
- FRAME_RATE = typedArray.getInteger(R.styleable.RippleView_rv_framerate, FRAME_RATE);
- PAINT_ALPHA = typedArray.getInteger(R.styleable.RippleView_rv_alpha, PAINT_ALPHA);
- ripplePadding = typedArray.getDimensionPixelSize(R.styleable.RippleView_rv_ripplePadding, 0);
- canvasHandler = new Handler();
- zoomScale = typedArray.getFloat(R.styleable.RippleView_rv_zoomScale, 1.03f);
- zoomDuration = typedArray.getInt(R.styleable.RippleView_rv_zoomDuration, 200);
- paint = new Paint();
- paint.setAntiAlias(true);
- paint.setStyle(Paint.Style.FILL);
- paint.setColor(rippleColor);
- paint.setAlpha(PAINT_ALPHA);
- this.setWillNotDraw(false);
- gestureDetector = new GestureDetector(context, new GestureDetector.SimpleOnGestureListener()
- {
- @Override
- public boolean onSingleTapConfirmed(MotionEvent e)
- {
- return true;
- }
- @Override
- public boolean onSingleTapUp(MotionEvent e)
- {
- return true;
- }
- });
- this.setDrawingCacheEnabled(true);
- }
- @Override
- public void addView(View child, int index, ViewGroup.LayoutParams params)
- {
- childView = child;
- super.addView(child, index, params);
- }
- @Override
- public void draw(Canvas canvas)
- {
- super.draw(canvas);
- if (animationRunning)
- {
- if (DURATION <= timer * FRAME_RATE)
- {
- animationRunning = false;
- timer = 0;
- durationEmpty = -1;
- timerEmpty = 0;
- canvas.restore();
- invalidate();
- return;
- }
- else
- canvasHandler.postDelayed(runnable, FRAME_RATE);
- if (timer == 0)
- canvas.save();
- canvas.drawCircle(x, y, (radiusMax * (((float) timer * FRAME_RATE) / DURATION)), paint);
- paint.setColor(getResources().getColor(android.R.color.holo_red_light));
- if (rippleType == 1 && originBitmap != null && (((float) timer * FRAME_RATE) / DURATION) > 0.4f)
- {
- if (durationEmpty == -1)
- durationEmpty = DURATION - timer * FRAME_RATE;
- timerEmpty++;
- final Bitmap tmpBitmap = getCircleBitmap((int) ((radiusMax) * (((float) timerEmpty * FRAME_RATE) / (durationEmpty))));
- canvas.drawBitmap(tmpBitmap, 0, 0, paint);
- tmpBitmap.recycle();
- }
- paint.setColor(rippleColor);
- if (rippleType == 1)
- {
- if ((((float) timer * FRAME_RATE) / DURATION) > 0.6f)
- paint.setAlpha((int) (PAINT_ALPHA - ((PAINT_ALPHA) * (((float) timerEmpty * FRAME_RATE) / (durationEmpty)))));
- else
- paint.setAlpha(PAINT_ALPHA);
- }
- else
- paint.setAlpha((int) (PAINT_ALPHA - ((PAINT_ALPHA) * (((float) timer * FRAME_RATE) / DURATION))));
- timer++;
- }
- }
- @Override
- protected void onSizeChanged(int w, int h, int oldw, int oldh)
- {
- super.onSizeChanged(w, h, oldw, oldh);
- WIDTH = w;
- HEIGHT = h;
- scaleAnimation = new ScaleAnimation(1.0f, zoomScale, 1.0f, zoomScale, w / 2, h / 2);
- scaleAnimation.setDuration(zoomDuration);
- scaleAnimation.setRepeatMode(Animation.REVERSE);
- scaleAnimation.setRepeatCount(1);
- }
- @Override
- public boolean onTouchEvent(MotionEvent event)
- {
- if (gestureDetector.onTouchEvent(event) && !animationRunning)
- {
- if (hasToZoom)
- this.startAnimation(scaleAnimation);
- radiusMax = Math.max(WIDTH, HEIGHT);
- if (rippleType != 2)
- radiusMax /= 2;
- radiusMax -= ripplePadding;
- if (isCentered || rippleType == 1)
- {
- this.x = getMeasuredWidth() / 2;
- this.y = getMeasuredHeight() / 2;
- }
- else
- {
- this.x = event.getX();
- this.y = event.getY();
- }
- animationRunning = true;
- if (rippleType == 1 && originBitmap == null)
- originBitmap = getDrawingCache(true);
- invalidate();
- this.performClick();
- }
- childView.onTouchEvent(event);
- return true;
- }
- @Override
- public boolean onInterceptTouchEvent(MotionEvent event)
- {
- return true;
- }
- private Bitmap getCircleBitmap(final int radius) {
- final Bitmap output = Bitmap.createBitmap(originBitmap.getWidth(), originBitmap.getHeight(), Bitmap.Config.ARGB_8888);
- final Canvas canvas = new Canvas(output);
- final Paint paint = new Paint();
- final Rect rect = new Rect((int)(x - radius), (int)(y - radius), (int)(x + radius), (int)(y + radius));
- paint.setAntiAlias(true);
- canvas.drawARGB(0, 0, 0, 0);
- canvas.drawCircle(x, y, radius, paint);
- paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
- canvas.drawBitmap(originBitmap, rect, rect, paint);
- return output;
- }
- }
2.MainActivity.java:
[java] view plain copy
- package com.example.test;
- import com.example.rippleeffectview.RippleView;
- import android.os.Bundle;
- import android.support.v7.app.ActionBarActivity;
- import android.view.Menu;
- import android.view.MenuItem;
- public class MainActivity extends ActionBarActivity {
- @Override
- protected void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.activity_main);
- final RippleView rippleView = (RippleView) findViewById(R.id.more);
- }
- @Override
- public boolean onCreateOptionsMenu(Menu menu) {
- // Inflate the menu; this adds items to the action bar if it is present.
- getMenuInflater().inflate(R.menu.main, menu);
- return true;
- }
- @Override
- public boolean onOptionsItemSelected(MenuItem item) {
- // Handle action bar item clicks here. The action bar will
- // automatically handle clicks on the Home/Up button, so long
- // as you specify a parent activity in AndroidManifest.xml.
- int id = item.getItemId();
- if (id == R.id.action_settings) {
- return true;
- }
- return super.onOptionsItemSelected(item);
- }
- }
3.布局文件应该是需要注意的地方:
[html] view plain copy
- <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
- xmlns:ripple="http://schemas.android.com/apk/res-auto"
- xmlns:tools="http://schemas.android.com/tools"
- android:layout_width="match_parent"
- android:layout_height="match_parent" >
- <com.example.rippleeffectview.RippleView
- android:id="@+id/more"
- android:layout_width="wrap_content"
- android:layout_height="wrap_content"
- android:layout_margin="5dp"
- ripple:rv_centered="true"
- ripple:rv_type="rectangle" >
- <Button
- android:layout_width="match_parent"
- android:layout_height="80dp"
- android:background="@color/switch_thumb_normal_material_dark"
- android:text="I like Color" />
- </com.example.rippleeffectview.RippleView>
- </RelativeLayout>
需要注意的地方如下图:
ripple:rv_centered="true"表示涟漪出现在中间位置;
ripple:rv_type="rectangle"表示涟漪的形状-长方形;
此外还有:
ripple:rv_type="doubleRipple"表示双涟漪;
ripple:rv_zoom="true"表示控件有缩放效果
ripple:rv_color="#000000"表示涟漪的颜色为黑色
还有其他属性在这里:
[html] view plain copy
- <resources>
- <declare-styleable name="RippleView">
- <attr name="rv_alpha" format="integer" />
- <attr name="rv_framerate" format="integer"/>
- <attr name="rv_rippleDuration" format="integer"/>
- <attr name="rv_zoomDuration" format="integer" />
- <attr name="rv_color" format="color" />
- <attr name="rv_centered" format="boolean" />
- <attr name="rv_type" format="enum">
- <enum name="simpleRipple" value="0"/>
- <enum name="doubleRipple" value="1"/>
- <enum name="rectangle" value="2" />
- </attr>
- <attr name="rv_ripplePadding" format="dimension" />
- <attr name="rv_zoom" format="boolean" />
- <attr name="rv_zoomScale" format="float" />
- </declare-styleable>
- </resources>
大家可以自行测试效果。
运行效果如下:
下面讨论一下如何将项目引入到自己的工程中:
复制上面箭头指向的三个文件到自己的项目中,按照上面例子所示的方法把控件包起来即可使用,非常方便,不懂的地方可以留言,谢谢!
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