Android实现步进式录像进度条

2023-12-05 06:58
文章标签 实现 android 进度条 录像 步进式

本文主要是介绍Android实现步进式录像进度条，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

现在的APP对用户的体验要求越来越高，操作简单、样式新颖的交互能够提高用户的黏性。今天来实现一下步进式录像进度条，秒拍中用到这样的进度条，如下图：


下面来简单实现一下：

activity_main.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"xmlns:tools="http://schemas.android.com/tools"android:layout_width="match_parent"android:layout_height="match_parent"android:paddingBottom="@dimen/activity_vertical_margin"android:paddingTop="@dimen/activity_vertical_margin"tools:context=".MainActivity" ><RelativeLayoutandroid:id="@+id/progress_layout"android:layout_width="match_parent"android:layout_height="wrap_content" ><com.jackie.steppingprogressbar.SteppingProgressBarandroid:id="@+id/stepping_progressbar"android:layout_width="match_parent"android:layout_height="50dp" /></RelativeLayout><LinearLayoutandroid:id="@+id/button_layout"android:layout_width="match_parent"android:layout_height="wrap_content"android:layout_below="@id/progress_layout"android:layout_marginTop="30dp" ><Buttonandroid:id="@+id/btn_start"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_marginLeft="15dp"android:onClick="onStartClick"android:text="开始" /><Buttonandroid:id="@+id/btn_stop"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_marginLeft="10dp"android:onClick="onStopClick"android:text="停止" /><Buttonandroid:id="@+id/btn_reset"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_marginLeft="10dp"android:onClick="onResetClick"android:text="重置" /><Buttonandroid:id="@+id/btn_delete"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_marginLeft="10dp"android:onClick="onDeleteClick"android:text="删除" /></LinearLayout></RelativeLayout>
SteppingProgressBar.java 

package com.jackie.steppingprogressbar;import java.util.ArrayList;
import java.util.List;import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Paint.Style;
import android.graphics.Rect;
import android.graphics.Typeface;
import android.util.AttributeSet;
import android.view.View;public class SteppingProgressBar extends View {private Paint mPaint;private int mMaxWidth;private float mPercent = 0;private boolean mIsProgressPause;private boolean mAddTimeStamp;private List<Rect> mTimeStampPosition = new ArrayList<Rect>();private List<Float> mTimeStampPercent = new ArrayList<Float>();private final int STATE_NORMAL = 1;private final int STATE_DELETE_PREPARE = 2;private final int STATE_DELETE_DONE = 3;private int mState = STATE_NORMAL;private int MAX_PERCENT = 100;private final static int PROGRESS_TEXT_SIZE = 56;private final static int PROGRESS_SCALE = 1000;private final static int PROGRESS_BACKGROUND_COLOR = Color.parseColor("#66030e18");private final static int PROGRESS_PASSED_COLOR = Color.parseColor("#7cb855");private final static int PROGRESS_STAMP_COLOR = Color.parseColor("#4a7b17");private final static int PROGRESS_TEXT_COLOR = Color.parseColor("#ff0000");private final static int PROGRESS_DELETING_COLOR = Color.parseColor("#3c6e57");private SteppingProgressBarCallbackListener mSteppingProgressBarCallbackListener = null;public void setOnDeleteCallbackListener(SteppingProgressBarCallbackListener listener) {this.mSteppingProgressBarCallbackListener = listener;}public interface SteppingProgressBarCallbackListener {/* 删除完成的回调 */public void deleteDone(float percent);}public SteppingProgressBar(Context context, AttributeSet attrs) {super(context, attrs);initData();}private void initData() {mPaint = new Paint();mPaint.setAlpha(255);mPaint.setStyle(Style.FILL);mPaint.setDither(true);  //防抖动mPaint.setAntiAlias(true); //放锯齿}@Overrideprotected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {//获取尺寸int size = MeasureSpec.getSize(heightMeasureSpec);size = (int)(size + PROGRESS_TEXT_SIZE + 10);heightMeasureSpec = MeasureSpec.makeMeasureSpec(size, MeasureSpec.EXACTLY);super.onMeasure(widthMeasureSpec, heightMeasureSpec);}@Overrideprotected void onDraw(Canvas canvas) {super.onDraw(canvas);//绘制底色mPaint.setColor(PROGRESS_BACKGROUND_COLOR);float width = mMaxWidth = getWidth();float height = getHeight() - PROGRESS_TEXT_SIZE - 10;canvas.drawRect(0, 0, width, height, mPaint);//绘制进度色mPaint.setColor(PROGRESS_PASSED_COLOR);width = (float) mPercent / (float) MAX_PERCENT * width;canvas.drawRect(0, 0, width, height, mPaint);//在下次进度条重新开始时，计算上次的分隔条if (mAddTimeStamp && mState == STATE_NORMAL && !mIsProgressPause) {mAddTimeStamp = false;Rect mRect = new Rect();mRect.left = (int) (width - 4); mRect.top = 0;mRect.right = (int) width;mRect.bottom = (int) height;mTimeStampPosition.add(mRect);mTimeStampPercent.add(mPercent);}//绘制所有分隔条for (Rect mRect : mTimeStampPosition) {mPaint.setColor(PROGRESS_STAMP_COLOR);canvas.drawRect(mRect, mPaint);}//绘制进度值文本mPaint.setStrokeWidth(0);mPaint.setColor(PROGRESS_TEXT_COLOR);mPaint.setTextSize(PROGRESS_TEXT_SIZE);mPaint.setTypeface(Typeface.DEFAULT);float textWidth = mPaint.measureText(mPercent / PROGRESS_SCALE + "s");if (mPercent != 0) {if (width + textWidth > mMaxWidth) {canvas.drawText(mPercent / PROGRESS_SCALE + "s", (width - textWidth), height + PROGRESS_TEXT_SIZE, mPaint);} else {canvas.drawText(mPercent / PROGRESS_SCALE + "s", width, height + PROGRESS_TEXT_SIZE, mPaint);}}if (mState == STATE_DELETE_DONE) {mState = STATE_NORMAL;//当删除完成时，准备绘制本次分隔条，当percent为0的时候不绘制if (mPercent != 0) {this.mAddTimeStamp = true;}} else if (mState == STATE_DELETE_PREPARE) {//当准备删除时，将上段时间内的进度条变色mPaint.setColor(PROGRESS_DELETING_COLOR);int left;if (mTimeStampPosition != null && mTimeStampPosition.size() > 0) {left = mTimeStampPosition.get(mTimeStampPosition.size() -1).right;} else {left = 0;}canvas.drawRect(left, 0, width, height, mPaint);}}/*** 进度条的最大值* @param maxPercent*/public void setMax(int maxPercent) {this.MAX_PERCENT = maxPercent;}/*** 当前进度* @return*/public float getProgress() {return mPercent;}/*** 设置当前进度* @param percent*/public void setProgress(float percent) {if (percent < 0) {return;}if (percent >= MAX_PERCENT) {percent = MAX_PERCENT;}this.mPercent = percent;this.mState = STATE_NORMAL;this.mIsProgressPause = false;invalidate();}/*** 设置视频录制中间的断点时间戳* @param timeStamp*/public void setTimeStamp(boolean timeStamp) {this.mIsProgressPause = true;this.mAddTimeStamp = timeStamp;}/*** 准备删除前一段进度*/public void deleteLastStepPrepare() {if (mState == STATE_DELETE_PREPARE) {return;}mState = STATE_DELETE_PREPARE;invalidate();}/*** 确认删除前一段进度*/public void deleteLastStep() {if (mState != STATE_DELETE_PREPARE) {deleteLastStepPrepare();return;}if (mTimeStampPercent != null && mTimeStampPercent.size() > 0) {this.mPercent = mTimeStampPercent.remove(mTimeStampPercent.size() - 1);} else {this.mPercent = 0;}this.mAddTimeStamp = false;mState = STATE_DELETE_DONE;//操作断点if (mTimeStampPosition != null && mTimeStampPosition.size() > 0) {mTimeStampPosition.remove(mTimeStampPosition.size() - 1);}if (mSteppingProgressBarCallbackListener != null) {mSteppingProgressBarCallbackListener.deleteDone(this.mPercent);}invalidate();}/*** 取消删除前一段进度*/public void deleteLastStepCancel() {if (mState == STATE_NORMAL) {return;}mState = STATE_DELETE_DONE;invalidate();}/*** 重置进度条*/public void reset() {this.mPercent = 0;this.mAddTimeStamp = false;mTimeStampPosition.clear();mTimeStampPercent.clear();invalidate();}
}
MainActivity.java 

package com.jackie.steppingprogressbar;import com.jackie.steppingprogressbar.SteppingProgressBar.SteppingProgressBarCallbackListener;import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.Menu;
import android.view.View;public class MainActivity extends Activity {SteppingProgressBar mProgressBar;private boolean mIsStopped = true;private int mProgress;private Handler mHandler = new Handler() {@Overridepublic void handleMessage(Message msg) {super.handleMessage(msg);setProgress();}};@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);mProgressBar = (SteppingProgressBar) findViewById(R.id.stepping_progressbar);mProgressBar.setMax(10000);}@Overridepublic 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;}public void onStartClick(View view) {if (!mIsStopped) {return;}mIsStopped = false;mHandler.removeMessages(0);mHandler.sendEmptyMessage(0);}private void setProgress() {if (mProgress > 10000) {mHandler.removeMessages(0);} else if (!mIsStopped) {mProgress += 100;mProgressBar.setProgress(mProgress);mHandler.sendEmptyMessageDelayed(0, 100);}}public void onStopClick(View view) {mIsStopped = true;mProgressBar.setTimeStamp(true);}public void onResetClick(View view) {mProgressBar.reset();mProgress = 0;}public void onDeleteClick(View view) {if (!mIsStopped) {return;}mProgressBar.deleteLastStep();mProgressBar.setOnDeleteCallbackListener(new SteppingProgressBarCallbackListener() {@Overridepublic void deleteDone(float percent) {mProgress = (int) percent;}});}
}
效果图如下：

   


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