国家进度机器人 [英] State progressbar android
本文介绍了国家进度机器人的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我在寻找实施状态的进度比较顺利地机器人像显示在下面的三个例子。 由于我不是重新发明轮子的球迷，我想询问是否有某些库可我不知道。
I'm looking for a smooth way to implement a "state" progressbar in Android like shown in the three examples below. As I'm not a fan of reinventing the wheel I'd like to ask if there is some library available I don't know about.
我看着它，但没有找到任何lib中，所以我想我需要我自己来实现它。什么是这样做的最简单的解决方案？我应该延长进度或者我应该从头开始做呢？你有任何建议或教程，我可以建立起来吗？
I looked it up and couldn't find any lib so I guess I need to implement it by myself. What would be the easiest solution to do so? Should I extend ProgressBar or should I do it from scratch? Do you have any suggestions or tutorials I could build up on?
推荐答案
更新
请参阅此示例项目，也GIF附加给概述。
Please see the this sample project, Also GIF is attached to give overview.
您可以自定义以下您的要求。
You can customize the following to your requirement.
import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.RectF;
import android.os.Bundle;
import android.os.Parcelable;
import android.util.AttributeSet;
import android.view.View;
public class NumberProgressBar extends View {
private Context mContext;
/**
* The max progress, default is 100
*/
private int mMax = 100;
/**
* current progress, can not exceed the max progress.
*/
private int mProgress = 0;
/**
* the progress area bar color
*/
private int mReachedBarColor;
/**
* the bar unreached area color.
*/
private int mUnreachedBarColor;
/**
* the progress text color.
*/
private int mTextColor;
/**
* the progress text size
*/
private float mTextSize;
/**
* the height of the reached area
*/
private float mReachedBarHeight;
/**
* the height of the unreached area
*/
private float mUnreachedBarHeight;
/**
* the suffix of the number.
*/
private String mSuffix = "%";
/**
* the prefix.
*/
private String mPrefix = "";
private final int default_text_color = Color.rgb(66, 145, 241);
private final int default_reached_color = Color.rgb(66,145,241);
private final int default_unreached_color = Color.rgb(204, 204, 204);
private final float default_progress_text_offset;
private final float default_text_size;
private final float default_reached_bar_height;
private final float default_unreached_bar_height;
/**
* for save and restore instance of progressbar.
*/
private static final String INSTANCE_STATE = "saved_instance";
private static final String INSTANCE_TEXT_COLOR = "text_color";
private static final String INSTANCE_TEXT_SIZE = "text_size";
private static final String INSTANCE_REACHED_BAR_HEIGHT = "reached_bar_height";
private static final String INSTANCE_REACHED_BAR_COLOR = "reached_bar_color";
private static final String INSTANCE_UNREACHED_BAR_HEIGHT = "unreached_bar_height";
private static final String INSTANCE_UNREACHED_BAR_COLOR = "unreached_bar_color";
private static final String INSTANCE_MAX = "max";
private static final String INSTANCE_PROGRESS = "progress";
private static final String INSTANCE_SUFFIX = "suffix";
private static final String INSTANCE_PREFIX = "prefix";
private static final String INSTANCE_TEXT_VISBILITY = "text_visibility";
private static final int PROGRESS_TEXT_VISIBLE = 0;
private static final int PROGRESS_TEXT_INVISIBLE = 1;
/**
* the width of the text that to be drawn
*/
private float mDrawTextWidth;
/**
* the drawn text start
*/
private float mDrawTextStart;
/**
*the drawn text end
*/
private float mDrawTextEnd;
/**
* the text that to be drawn in onDraw()
*/
private String mCurrentDrawText;
/**
* the Paint of the reached area.
*/
private Paint mReachedBarPaint;
/**
* the Painter of the unreached area.
*/
private Paint mUnreachedBarPaint;
/**
* the Painter of the progress text.
*/
private Paint mTextPaint;
/**
* Unreached Bar area to draw rect.
*/
private RectF mUnreachedRectF = new RectF(0,0,0,0);
/**
* reached bar area rect.
*/
private RectF mReachedRectF = new RectF(0,0,0,0);
/**
* the progress text offset.
*/
private float mOffset;
/**
* determine if need to draw unreached area
*/
private boolean mDrawUnreachedBar = true;
private boolean mDrawReachedBar = true;
private boolean mIfDrawText = true;
public enum ProgressTextVisibility{
Visible,Invisible
};
public NumberProgressBar(Context context) {
this(context, null);
}
public NumberProgressBar(Context context, AttributeSet attrs) {
this(context, attrs, R.attr.numberProgressBarStyle);
}
public NumberProgressBar(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
mContext = context;
default_reached_bar_height = dp2px(1.5f);
default_unreached_bar_height = dp2px(1.0f);
default_text_size = sp2px(10);
default_progress_text_offset = dp2px(3.0f);
//load styled attributes.
final TypedArray attributes = context.getTheme().obtainStyledAttributes(attrs, R.styleable.NumberProgressBar,
defStyleAttr, 0);
mReachedBarColor = attributes.getColor(R.styleable.NumberProgressBar_progress_reached_color, default_reached_color);
mUnreachedBarColor = attributes.getColor(R.styleable.NumberProgressBar_progress_unreached_color,default_unreached_color);
mTextColor = attributes.getColor(R.styleable.NumberProgressBar_progress_text_color,default_text_color);
mTextSize = attributes.getDimension(R.styleable.NumberProgressBar_progress_text_size, default_text_size);
mReachedBarHeight = attributes.getDimension(R.styleable.NumberProgressBar_progress_reached_bar_height,default_reached_bar_height);
mUnreachedBarHeight = attributes.getDimension(R.styleable.NumberProgressBar_progress_unreached_bar_height,default_unreached_bar_height);
mOffset = attributes.getDimension(R.styleable.NumberProgressBar_progress_text_offset,default_progress_text_offset);
int textVisible = attributes.getInt(R.styleable.NumberProgressBar_progress_text_visibility,PROGRESS_TEXT_VISIBLE);
if(textVisible != PROGRESS_TEXT_VISIBLE){
mIfDrawText = false;
}
setProgress(attributes.getInt(R.styleable.NumberProgressBar_progress,0));
setMax(attributes.getInt(R.styleable.NumberProgressBar_max, 100));
//
attributes.recycle();
initializePainters();
}
@Override
protected int getSuggestedMinimumWidth() {
return (int)mTextSize;
}
@Override
protected int getSuggestedMinimumHeight() {
return Math.max((int)mTextSize,Math.max((int)mReachedBarHeight,(int)mUnreachedBarHeight));
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
setMeasuredDimension(measure(widthMeasureSpec,true), measure(heightMeasureSpec,false));
}
private int measure(int measureSpec,boolean isWidth){
int result;
int mode = MeasureSpec.getMode(measureSpec);
int size = MeasureSpec.getSize(measureSpec);
int padding = isWidth?getPaddingLeft()+getPaddingRight():getPaddingTop()+getPaddingBottom();
if(mode == MeasureSpec.EXACTLY){
result = size;
}else{
result = isWidth ? getSuggestedMinimumWidth() : getSuggestedMinimumHeight();
result += padding;
if(mode == MeasureSpec.AT_MOST){
if(isWidth) {
result = Math.max(result, size);
}
else{
result = Math.min(result, size);
}
}
}
return result;
}
@Override
protected void onDraw(Canvas canvas) {
if(mIfDrawText){
calculateDrawRectF();
}else{
calculateDrawRectFWithoutProgressText();
}
if(mDrawReachedBar){
canvas.drawRect(mReachedRectF,mReachedBarPaint);
}
if(mDrawUnreachedBar) {
canvas.drawRect(mUnreachedRectF, mUnreachedBarPaint);
}
if(mIfDrawText)
canvas.drawText(mCurrentDrawText,mDrawTextStart,mDrawTextEnd,mTextPaint);
}
private void initializePainters(){
mReachedBarPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
mReachedBarPaint.setColor(mReachedBarColor);
mUnreachedBarPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
mUnreachedBarPaint.setColor(mUnreachedBarColor);
mTextPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
mTextPaint.setColor(mTextColor);
mTextPaint.setTextSize(mTextSize);
}
private void calculateDrawRectFWithoutProgressText(){
mReachedRectF.left = getPaddingLeft();
mReachedRectF.top = getHeight()/2.0f - mReachedBarHeight / 2.0f;
mReachedRectF.right = (getWidth() - getPaddingLeft() - getPaddingRight() )/(getMax()*1.0f) * getProgress() + getPaddingLeft();
mReachedRectF.bottom = getHeight()/2.0f + mReachedBarHeight / 2.0f;
mUnreachedRectF.left = mReachedRectF.right;
mUnreachedRectF.right = getWidth() - getPaddingRight();
mUnreachedRectF.top = getHeight()/2.0f + - mUnreachedBarHeight / 2.0f;
mUnreachedRectF.bottom = getHeight()/2.0f + mUnreachedBarHeight / 2.0f;
}
private void calculateDrawRectF(){
mCurrentDrawText = String.format("%d" ,getProgress()*100/getMax());
mCurrentDrawText = mPrefix + mCurrentDrawText + mSuffix;
mDrawTextWidth = mTextPaint.measureText(mCurrentDrawText);
if(getProgress() == 0){
mDrawReachedBar = false;
mDrawTextStart = getPaddingLeft();
}else{
mDrawReachedBar = true;
mReachedRectF.left = getPaddingLeft();
mReachedRectF.top = getHeight()/2.0f - mReachedBarHeight / 2.0f;
mReachedRectF.right = (getWidth() - getPaddingLeft() - getPaddingRight() )/(getMax()*1.0f) * getProgress() - mOffset + getPaddingLeft();
mReachedRectF.bottom = getHeight()/2.0f + mReachedBarHeight / 2.0f;
mDrawTextStart = (mReachedRectF.right + mOffset);
}
mDrawTextEnd = (int) ((getHeight() / 2.0f) - ((mTextPaint.descent() + mTextPaint.ascent()) / 2.0f)) ;
if((mDrawTextStart + mDrawTextWidth )>= getWidth() - getPaddingRight()){
mDrawTextStart = getWidth() - getPaddingRight() - mDrawTextWidth;
mReachedRectF.right = mDrawTextStart - mOffset;
}
float unreachedBarStart = mDrawTextStart + mDrawTextWidth + mOffset;
if(unreachedBarStart >= getWidth() - getPaddingRight()){
mDrawUnreachedBar = false;
}else{
mDrawUnreachedBar = true;
mUnreachedRectF.left = unreachedBarStart;
mUnreachedRectF.right = getWidth() - getPaddingRight();
mUnreachedRectF.top = getHeight()/2.0f + - mUnreachedBarHeight / 2.0f;
mUnreachedRectF.bottom = getHeight()/2.0f + mUnreachedBarHeight / 2.0f;
}
}
/**
* get progress text color
* @return progress text color
*/
public int getTextColor() {
return mTextColor;
}
/**
* get progress text size
* @return progress text size
*/
public float getProgressTextSize() {
return mTextSize;
}
public int getUnreachedBarColor() {
return mUnreachedBarColor;
}
public int getReachedBarColor() {
return mReachedBarColor;
}
public int getProgress() {
return mProgress;
}
public int getMax() {
return mMax;
}
public float getReachedBarHeight(){
return mReachedBarHeight;
}
public float getUnreachedBarHeight(){
return mUnreachedBarHeight;
}
public void setProgressTextSize(float TextSize) {
this.mTextSize = TextSize;
mTextPaint.setTextSize(mTextSize);
invalidate();
}
public void setProgressTextColor(int TextColor) {
this.mTextColor = TextColor;
mTextPaint.setColor(mTextColor);
invalidate();
}
public void setUnreachedBarColor(int BarColor) {
this.mUnreachedBarColor = BarColor;
mUnreachedBarPaint.setColor(mReachedBarColor);
invalidate();
}
public void setReachedBarColor(int ProgressColor) {
this.mReachedBarColor = ProgressColor;
mReachedBarPaint.setColor(mReachedBarColor);
invalidate();
}
public void setReachedBarHeight(float height){
mReachedBarHeight = height;
}
public void setUnreachedBarHeight(float height){
mUnreachedBarHeight = height;
}
public void setMax(int Max) {
if(Max > 0){
this.mMax = Max;
invalidate();
}
}
public void setSuffix(String suffix){
if(suffix == null){
mSuffix = "";
}else{
mSuffix = suffix;
}
}
public String getSuffix(){
return mSuffix;
}
public void setPrefix(String prefix){
if(prefix == null)
mPrefix = "";
else{
mPrefix = prefix;
}
}
public String getPrefix(){
return mPrefix;
}
public void incrementProgressBy(int by){
if(by > 0){
setProgress(getProgress() + by);
}
}
public void setProgress(int Progress) {
if(Progress <= getMax() && Progress >= 0){
this.mProgress = Progress;
invalidate();
}
}
@Override
protected Parcelable onSaveInstanceState() {
final Bundle bundle = new Bundle();
bundle.putParcelable(INSTANCE_STATE,super.onSaveInstanceState());
bundle.putInt(INSTANCE_TEXT_COLOR,getTextColor());
bundle.putFloat(INSTANCE_TEXT_SIZE, getProgressTextSize());
bundle.putFloat(INSTANCE_REACHED_BAR_HEIGHT,getReachedBarHeight());
bundle.putFloat(INSTANCE_UNREACHED_BAR_HEIGHT,getUnreachedBarHeight());
bundle.putInt(INSTANCE_REACHED_BAR_COLOR,getReachedBarColor());
bundle.putInt(INSTANCE_UNREACHED_BAR_COLOR,getUnreachedBarColor());
bundle.putInt(INSTANCE_MAX,getMax());
bundle.putInt(INSTANCE_PROGRESS,getProgress());
bundle.putString(INSTANCE_SUFFIX,getSuffix());
bundle.putString(INSTANCE_PREFIX,getPrefix());
bundle.putBoolean(INSTANCE_TEXT_VISBILITY, getProgressTextVisibility());
return bundle;
}
@Override
protected void onRestoreInstanceState(Parcelable state) {
if(state instanceof Bundle){
final Bundle bundle = (Bundle)state;
mTextColor = bundle.getInt(INSTANCE_TEXT_COLOR);
mTextSize = bundle.getFloat(INSTANCE_TEXT_SIZE);
mReachedBarHeight = bundle.getFloat(INSTANCE_REACHED_BAR_HEIGHT);
mUnreachedBarHeight = bundle.getFloat(INSTANCE_UNREACHED_BAR_HEIGHT);
mReachedBarColor = bundle.getInt(INSTANCE_REACHED_BAR_COLOR);
mUnreachedBarColor = bundle.getInt(INSTANCE_UNREACHED_BAR_COLOR);
initializePainters();
setMax(bundle.getInt(INSTANCE_MAX));
setProgress(bundle.getInt(INSTANCE_PROGRESS));
setPrefix(bundle.getString(INSTANCE_PREFIX));
setSuffix(bundle.getString(INSTANCE_SUFFIX));
setProgressTextVisibility(bundle.getBoolean(INSTANCE_TEXT_VISBILITY) ? ProgressTextVisibility.Visible : ProgressTextVisibility.Invisible);
super.onRestoreInstanceState(bundle.getParcelable(INSTANCE_STATE));
return;
}
super.onRestoreInstanceState(state);
}
public float dp2px(float dp) {
final float scale = getResources().getDisplayMetrics().density;
return dp * scale + 0.5f;
}
public float sp2px(float sp){
final float scale = getResources().getDisplayMetrics().scaledDensity;
return sp * scale;
}
public void setProgressTextVisibility(ProgressTextVisibility visibility){
mIfDrawText = visibility == ProgressTextVisibility.Visible;
invalidate();
}
public boolean getProgressTextVisibility() {
return mIfDrawText;
}
}
<一个href="http://stackoverflow.com/questions/16893209/how-to-customize-a-progress-bar-in-android?rq=1">Link 2
<一个href="http://stackoverflow.com/questions/14472144/how-to-make-segmented-seekbar-slider-look-like-following">Link 4
您也可以做到这一点线性布局。我做了一个简单的例子，只是一个简单的例子。
You can also do it with linear layout. I have done a simple example, just a simple example.
<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" >
<LinearLayout
android:id="@+id/ll_progress"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:background="@drawable/layout" >
<ImageView
android:id="@+id/ImageView01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:layout_marginTop="14dp"
android:src="@drawable/bg_1" />
<ImageView
android:id="@+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="38dp"
android:layout_marginTop="14dp"
android:src="@drawable/bg_1" />
<ImageView
android:id="@+id/imageView12"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="35dp"
android:layout_marginTop="14dp"
android:src="@drawable/bg_1" />
</LinearLayout>
</RelativeLayout>
MainActivity.java
MainActivity.java
import java.util.concurrent.TimeUnit;
import android.app.Activity;
import android.graphics.BitmapFactory;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.graphics.drawable.TransitionDrawable;
import android.os.Bundle;
import android.os.Handler;
import android.widget.ImageView;
import android.widget.LinearLayout;
public class MainActivity extends Activity {
LinearLayout llProgress;
Handler handler;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
llProgress = (LinearLayout) findViewById(R.id.ll_progress);
handler = new Handler(getMainLooper());
startTransition();
}
int prevChild = 0;
private void startTransition() {
// create the transition layers
Drawable[] layers = new Drawable[2];
layers[0] = new BitmapDrawable(getResources(), BitmapFactory.decodeResource(getResources(), R.drawable.bg));
layers[1] = new BitmapDrawable(getResources(), BitmapFactory.decodeResource(getResources(), R.drawable.bg_1));
final TransitionDrawable[] transitionDrawable = new TransitionDrawable[llProgress.getChildCount()];
for (int i = 0; i < llProgress.getChildCount(); i++) {
transitionDrawable[i] = new TransitionDrawable(layers);
((ImageView) llProgress.getChildAt(i)).setImageDrawable(transitionDrawable[i]);
}
handler.postDelayed(new Runnable() {
@Override
public void run() {
transitionDrawable[prevChild++].startTransition(1000);
if(prevChild > llProgress.getChildCount() - 1){
prevChild = 0;
}
handler.postDelayed(this, 1000 * 3);
}
}, 1000 * 3);
}
这篇关于国家进度机器人的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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