android 水平progressBar动态加载(Android 水平居中)

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当你需要动态显示一个progressBar时，动态显示进度，并在右侧显示加载进度，请参考下面代码：

重写写布局

public class LineProgressBar extends View {private Paint paint;private int lineColor;private int lineProgressColor;private int textColor;private float textSize;private float textWidth;private float textMargin;private float lineHeight;private int max;private int progress = 0;private RectF pLine, bLine;private int progressOne;public LineProgressBar(Context context) {this(context, null);}public LineProgressBar(Context context, AttributeSet attrs) {this(context, attrs, 0);}public LineProgressBar(Context context, AttributeSet attrs, int defStyle) {super(context, attrs, defStyle);progressOne = 0;paint = new Paint();TypedArray mTypedArray = context.obtainStyledAttributes(attrs,R.styleable.LineProgressBar);// 获取自定义属性和默认&#;lineColor = mTypedArray.getColor(R.styleable.RoundProgressBar_lineColor, Color.RED);lineHeight = mTypedArray.getDimension(R.styleable.RoundProgressBar_lineHeight, );lineProgressColor = mTypedArray.getColor(R.styleable.RoundProgressBar_lineProgressColor, Color.GREEN);textColor = mTypedArray.getColor(R.styleable.RoundProgressBar_textColor, Color.GREEN);textSize = mTypedArray.getDimension(R.styleable.RoundProgressBar_textSize, );textWidth = mTypedArray.getDimension(R.styleable.RoundProgressBar_textWidth, );textMargin = mTypedArray.getDimension(R.styleable.RoundProgressBar_textMargin, 5);max = mTypedArray.getInteger(R.styleable.RoundProgressBar_max, );mTypedArray.recycle();pLine = new RectF();}@Overrideprotected void onDraw(Canvas canvas) {super.onDraw(canvas);float width = getWidth();float height = getHeight();float margin = (height - lineHeight)/2;float drawHeight = lineHeight &#; margin;if(bLine == null) bLine = new RectF(0, margin, width-textWidth-textMargin, drawHeight);paint.setColor(lineColor); // 设置背景颜色paint.setStyle(Paint.Style.FILL); // 设置填充paint.setAntiAlias(true); // 消除锯齿canvas.drawRoundRect(bLine, 5, 5, paint); //画进度背景paint.setStrokeWidth(0);paint.setColor(textColor);//设置字体颜色paint.setTextSize(textSize);//设置字体大小paint.setTypeface(Typeface.DEFAULT); // 设置字体int percent = (int) (((float) progressOne / (float) max) * ); canvas.drawText(percent &#; "%", width - textWidth - textMargin, height, paint); // 画出进度百分比paint.setColor(lineProgressColor);//设置进度颜色pLine.set(0, margin, progressOne*(width-textWidth-textMargin)/max, drawHeight);canvas.drawRoundRect(pLine, 5, 5, paint);//画进度if (progressOne < progress) {//循环画invalidate();progressOne&#;&#;;}}public synchronized int getMax() {return max;}public synchronized void setMax(int max) {if (max < 0) {throw new IllegalArgumentException("max not less than 0");}this.max = max;}public synchronized int getProgress() {return progress;}public synchronized void setProgress(int progress) {if (progress < 0) {throw new IllegalArgumentException("progress not less than 0");}if (progress > max) {progress = max;}if (progress <= max) {this.progress = progress;progressOne = 0;postInvalidate();}}public int getTextColor() {return textColor;}public void setTextColor(int textColor) {this.textColor = textColor;}public float getTextSize() {return textSize;}public void setTextSize(float textSize) {this.textSize = textSize;}}

用到的其他代码：

<declare-styleable name="LineProgressBar"> <attr name="textColor" format="color" /> <attr name="textSize" format="dimension" /> <attr name="max" format="integer"></attr> <attr name="textIsDisplayable" format="boolean"></attr> <attr name="lineColor" format="color" /> <attr name="lineHeight" format="dimension" /> <attr name="lineProgressColor" format="color" /> <attr name="textWidth" format="dimension" /> <attr name="textMargin" format="dimension" /> </declare-styleable>

使用方式：xml

<....LineProgressBar android:id="@&#;id/details_line_progress" android:layout_width="match_parent" android:layout_height="dp" android:layout_marginLeft="5dp" android:layout_marginRight="5dp" android_custom:lineColor="@color/whitebl" android_custom:lineHeight="5dp" android_custom:lineProgressColor="@color/title_color" android_custom:max="" android_custom:textColor="@color/title_color" android_custom:textMargin="5dp" android_custom:textSize="sp" android_custom:textWidth="dp" ></....LineProgressBar>

使用方式：代码

LineProgressBar progress;

....//初始化

progress.setProgress();

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