开源项目GoodView点赞效果

点赞+1效果：

GoodView方法：

使用GoodView的Demo:

public class MainActivity extends Activity {

        @Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main)final GoodView goodView = new GoodView(this);Button button = new Button(this);button.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {goodView.setText("+1");goodView.show(v);}});}}

<span style="font-family: Arial, Helvetica, sans-serif;">实践GitHub开源GoodView:</span>

<span style="font-family: Arial, Helvetica, sans-serif;">
</span>

GoodView.java ：

/** Copyright (C) 2016 venshine.cn@gmail.com** Licensed under the Apache License, Version 2.0 (the "License");* you may not use this file except in compliance with the License.* You may obtain a copy of the License at**      http://www.apache.org/licenses/LICENSE-2.0** Unless required by applicable law or agreed to in writing, software* distributed under the License is distributed on an "AS IS" BASIS,* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.* See the License for the specific language governing permissions and* limitations under the License.*/
package sunny.example.opengoodview.goodview;import android.annotation.SuppressLint;
import android.content.Context;
import android.graphics.Color;
import android.graphics.drawable.ColorDrawable;
import android.graphics.drawable.Drawable;
import android.os.Build;
import android.os.Handler;
import android.text.TextUtils;
import android.util.TypedValue;
import android.view.View;
import android.view.animation.AlphaAnimation;
import android.view.animation.Animation;
import android.view.animation.AnimationSet;
import android.view.animation.TranslateAnimation;
import android.widget.PopupWindow;
import android.widget.RelativeLayout;
import android.widget.TextView;/*** 点赞效果** @author venshine*/
@SuppressLint("NewApi")
public class GoodView extends PopupWindow implements IGoodView {private String mText = TEXT;private int mTextColor = TEXT_COLOR;private int mTextSize = TEXT_SIZE;private int mFromY = FROM_Y_DELTA;private int mToY = TO_Y_DELTA;private float mFromAlpha = FROM_ALPHA;private float mToAlpha = TO_ALPHA;private int mDuration = DURATION;private int mDistance = DISTANCE;private AnimationSet mAnimationSet;private boolean mChanged = false;private Context mContext = null;private TextView mGood = null;public GoodView(Context context) {super(context);mContext = context;initView();}private void initView() {RelativeLayout layout = new RelativeLayout(mContext);RelativeLayout.LayoutParams params =new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT,RelativeLayout.LayoutParams.WRAP_CONTENT);params.addRule(RelativeLayout.CENTER_HORIZONTAL);params.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM);mGood = new TextView(mContext);mGood.setIncludeFontPadding(false);mGood.setTextSize(TypedValue.COMPLEX_UNIT_DIP, mTextSize);mGood.setTextColor(mTextColor);mGood.setText(mText);mGood.setLayoutParams(params);layout.addView(mGood);setContentView(layout);int w = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);int h = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);mGood.measure(w, h);setWidth(mGood.getMeasuredWidth());setHeight(mDistance + mGood.getMeasuredHeight());setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));setFocusable(false);setTouchable(false);setOutsideTouchable(false);mAnimationSet = createAnimation();}/*** 设置文本** @param text*/public void setText(String text) {if (TextUtils.isEmpty(text)) {throw new IllegalArgumentException("text cannot be null.");}mText = text;mGood.setText(text);mGood.setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));int w = (int) mGood.getPaint().measureText(text);setWidth(w);setHeight(mDistance + getTextViewHeight(mGood, w));}private static int getTextViewHeight(TextView textView, int width) {int widthMeasureSpec = View.MeasureSpec.makeMeasureSpec(width, View.MeasureSpec.AT_MOST);int heightMeasureSpec = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);textView.measure(widthMeasureSpec, heightMeasureSpec);return textView.getMeasuredHeight();}/*** 设置文本颜色** @param color*/private void setTextColor(int color) {mTextColor = color;mGood.setTextColor(color);}/*** 设置文本大小** @param textSize*/private void setTextSize(int textSize) {mTextSize = textSize;mGood.setTextSize(TypedValue.COMPLEX_UNIT_DIP, textSize);}/*** 设置文本信息** @param text* @param textColor* @param textSize*/public void setTextInfo(String text, int textColor, int textSize) {setTextColor(textColor);setTextSize(textSize);setText(text);}/*** 设置图片** @param resId*/public void setImage(int resId) {setImage(mContext.getResources().getDrawable(resId));}/*** 设置图片** @param drawable*/public void setImage(Drawable drawable) {if (drawable == null) {throw new IllegalArgumentException("drawable cannot be null.");}if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {mGood.setBackground(drawable);} else {mGood.setBackgroundDrawable(drawable);}mGood.setText("");setWidth(drawable.getIntrinsicWidth());setHeight(mDistance + drawable.getIntrinsicHeight());}/*** 设置移动距离** @param dis*/public void setDistance(int dis) {mDistance = dis;mToY = dis;mChanged = true;setHeight(mDistance + mGood.getMeasuredHeight());}/*** 设置Y轴移动属性** @param fromY* @param toY*/public void setTranslateY(int fromY, int toY) {mFromY = fromY;mToY = toY;mChanged = true;}/*** 设置透明度属性** @param fromAlpha* @param toAlpha*/public void setAlpha(float fromAlpha, float toAlpha) {mFromAlpha = fromAlpha;mToAlpha = toAlpha;mChanged = true;}/*** 设置动画时长** @param duration*/public void setDuration(int duration) {mDuration = duration;mChanged = true;}/*** 重置属性*/public void reset() {mText = TEXT;mTextColor = TEXT_COLOR;mTextSize = TEXT_SIZE;mFromY = FROM_Y_DELTA;mToY = TO_Y_DELTA;mFromAlpha = FROM_ALPHA;mToAlpha = TO_ALPHA;mDuration = DURATION;mDistance = DISTANCE;mChanged = false;mAnimationSet = createAnimation();}/*** 展示** @param v*/public void show(View v) {if (!isShowing()) {int offsetY = -v.getHeight() - getHeight();showAsDropDown(v, v.getWidth() / 2 - getWidth() / 2, offsetY);if (mAnimationSet == null || mChanged) {mAnimationSet = createAnimation();mChanged = false;}mGood.startAnimation(mAnimationSet);}}/*** 动画** @return*/private AnimationSet createAnimation() {mAnimationSet = new AnimationSet(true);TranslateAnimation translateAnim = new TranslateAnimation(0, 0, mFromY, -mToY);AlphaAnimation alphaAnim = new AlphaAnimation(mFromAlpha, mToAlpha);mAnimationSet.addAnimation(translateAnim);mAnimationSet.addAnimation(alphaAnim);mAnimationSet.setDuration(mDuration);mAnimationSet.setAnimationListener(new Animation.AnimationListener() {@Overridepublic void onAnimationStart(Animation animation) {}@Overridepublic void onAnimationEnd(Animation animation) {if (isShowing()) {new Handler().post(new Runnable() {@Overridepublic void run() {dismiss();}});}}@Overridepublic void onAnimationRepeat(Animation animation) {}});return mAnimationSet;}
}

IGoodView.java ：

/** Copyright (C) 2016 venshine.cn@gmail.com** Licensed under the Apache License, Version 2.0 (the "License");* you may not use this file except in compliance with the License.* You may obtain a copy of the License at**      http://www.apache.org/licenses/LICENSE-2.0** Unless required by applicable law or agreed to in writing, software* distributed under the License is distributed on an "AS IS" BASIS,* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.* See the License for the specific language governing permissions and* limitations under the License.*/
package sunny.example.opengoodview.goodview;import android.graphics.Color;/*** @author venshine*/
public interface IGoodView {int DISTANCE = 60;   // 默认移动距离int FROM_Y_DELTA = 0; // Y轴移动起始偏移量int TO_Y_DELTA = DISTANCE; // Y轴移动最终偏移量float FROM_ALPHA = 1.0f;    // 起始时透明度float TO_ALPHA = 0.0f;  // 结束时透明度int DURATION = 800; // 动画时长String TEXT = ""; // 默认文本int TEXT_SIZE = 16; // 默认文本字体大小int TEXT_COLOR = Color.BLACK;   // 默认文本字体颜色}

MainActivity.java ：

/** Copyright (C) 2016 venshine.cn@gmail.com** Licensed under the Apache License, Version 2.0 (the "License");* you may not use this file except in compliance with the License.* You may obtain a copy of the License at**      http://www.apache.org/licenses/LICENSE-2.0** Unless required by applicable law or agreed to in writing, software* distributed under the License is distributed on an "AS IS" BASIS,* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.* See the License for the specific language governing permissions and* limitations under the License.*/
package sunny.example.opengoodview;import android.graphics.Color;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
//import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.ImageView;import sunny.example.opengoodview.goodview.GoodView;/*** Demo** @author venshine*/
public class MainActivity extends ActionBarActivity {GoodView mGoodView;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);mGoodView = new GoodView(this);}//android:onClick="good"public void good(View view) {((ImageView) view).setImageResource(R.drawable.good_checked);mGoodView.setText("+1");mGoodView.show(view);}public void good2(View view) {((ImageView) view).setImageResource(R.drawable.good_checked);mGoodView.setImage(getResources().getDrawable(R.drawable.good_checked));mGoodView.show(view);}public void collection(View view) {((ImageView) view).setImageResource(R.drawable.collection_checked);mGoodView.setTextInfo("收藏成功", Color.parseColor("#f66467"), 12);mGoodView.show(view);}public void bookmark(View view) {((ImageView) view).setImageResource(R.drawable.bookmark_checked);mGoodView.setTextInfo("收藏成功", Color.parseColor("#ff941A"), 12);mGoodView.show(view);}public void reset(View view) {((ImageView) findViewById(R.id.good)).setImageResource(R.drawable.good);((ImageView) findViewById(R.id.good2)).setImageResource(R.drawable.good);((ImageView) findViewById(R.id.collection)).setImageResource(R.drawable.collection);((ImageView) findViewById(R.id.bookmark)).setImageResource(R.drawable.bookmark);mGoodView.reset();}}

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