Android仿微信聊天语言点击喇叭动画效果

淩亂°似流年 2022-07-15 05:12 166阅读 0赞

**微信聊天界面点击语音时，喇叭的动画效果，下面上代码，该类是控制背景变化的工具类，不涉及语音录制和播放。**

图片资源：  
![这里写图片描述][20161103170124102]

## ![这里写图片描述][20161103170139415] ##

![这里写图片描述][20161103170202650]

package xxx;
    
    import android.os.Handler;
    import android.widget.ImageView;
    
    import xxx.R;
    
    import java.util.Timer;
    import java.util.TimerTask;
    
    public class VoicePlayingBgUtil { 
    
        private Handler handler;
    
        private ImageView imageView;
    
        private ImageView lastImageView;
    
        private Timer timer = new Timer();
        private TimerTask timerTask;
    
        private int i;
    
        private int modelType = 1;//类型
    
        private int[] leftVoiceBg = new int[] { R.drawable.gray1, R.drawable.gray2, R.drawable.gray3 };
        private int[] rightVoiceBg = new int[] { R.drawable.green1, R.drawable.green2, R.drawable.green3 };
        private int[] collectVoiceBg = new int[] { R.drawable.collect_voice_1, R.drawable.collect_voice_2, R.drawable.collect_voice_3 };
    
        public VoicePlayingBgUtil(Handler handler) {
            super();
            this.handler = handler;
        }
    
        public void voicePlay() {
            if (imageView == null) {
                return;
            }
            i = 0;
            timerTask = new TimerTask() {
    
                @Override
                public void run() {
                    if (imageView != null) {
                        if (modelType == 1) {
                            changeBg(leftVoiceBg[i % 3], false);
                        }else if(modelType==2){
                            changeBg(rightVoiceBg[i % 3], false);
                        }else if(modelType==3){
                            changeBg(collectVoiceBg[i % 3], false);
                        }
                    }
                    else {
                        return;
                    }
                    i++;
                }
            };
            timer.schedule(timerTask, 0, 500);
        }
    
        public void stopPlay() {
            lastImageView = imageView;
            if (lastImageView != null) {
                switch (modelType) {
                    case 1:
                        changeBg(R.drawable.gray3, true);
                        break;
                    case 2:
                        changeBg(R.drawable.green3, true);
                        break;
                    case 3:
                        changeBg(R.drawable.collect_voice_3, true);
                    default:
                        changeBg(R.drawable.gray3, true);
                        break;
                }
                if (timerTask != null) {
                    timerTask.cancel();
                }
            }
        }
    
        private void changeBg(final int id, final boolean isStop) {
            handler.post(new Runnable() {
                @Override
                public void run() {
                    if (isStop) {
                        lastImageView.setImageResource(id);
                    }
                    else {
                        imageView.setImageResource(id);
    
                    }
                }
            });
        }
    
        public void setImageView(ImageView imageView) {
            this.imageView = imageView;
        }
    
        public void setModelType(int modelType) {
            this.modelType = modelType;
        }
    
    }

**调用方法**

playBgUtil = new VoicePlayingBgUtil(handler);
     playBgUtil.stopPlay();
     playBgUtil.voicePlay();

[20161103170124102]: /images/20220715/0bfb04de84154c46a551d73e4f0cb2ff.png
[20161103170139415]: /images/20220715/4fdce893d1024312aaa83f93512f04c9.png
[20161103170202650]: /images/20220715/06aee907c9e744fd9547cc6ebea27a7d.png