我正在制作某种“游戏得分跟踪器”。以下是该应用目前的工作方式：
示例：如果有3名球员“詹姆斯，约翰和罗伯特”。然后用户为詹姆斯增加5分，给约翰增加10分，给罗伯特增加15分。这就是TextViews的样子：
詹姆斯5
John 10
罗伯特15
然后，如果用户再次执行完全相同的操作，则会发生这种情况：
詹姆斯5
John 10
罗伯特15詹姆斯10
John 20
Robert 30
所以你可以看到，我没有为每个播放器保留相同的TextView，但我一直在添加它们（我确实希望这样，我希望用户能够看到他的动作，当他点击时 - 以及+但是有没有办法以某种方式为每个用户设置颜色？例如：詹姆斯将是蓝色，约翰将是红色，罗伯特将是绿色。我如何预先确定每个玩家的TextView的颜色？
玩家类：
public static class Player implements Parcelable{
String name;
int score;
@Override
public int describeContents() {
// TODO Auto-generated method stub
return 0;
}
@Override
public void writeToParcel(Parcel dest, int flags) {
dest.writeInt(score);
dest.writeString(name);
}
public Player(Parcel source){
score = source.readInt();
name = source.readString();
}
public Player(){
}
public static final Parcelable.Creator<Player> CREATOR = new Parcelable.Creator<Novaigra.Player>() {
@Override
public Player createFromParcel(Parcel source) {
return new Player(source);
}
@Override
public Player[] newArray(int size) {
return new Player[size];
}
};
}
添加播放器时，我可以为活动添加某种调色板，以便用户可以预先确定颜色或其他内容吗？
答案 0 :(得分：0)
这里有一个颜色选择器，android没有一个内置，随时可以根据您的需要进行修改
import android.app.Dialog;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.LinearGradient;
import android.graphics.Paint;
import android.graphics.Shader;
import android.os.Bundle;
import android.view.MotionEvent;
import android.view.View;
public class ColorPickerDialog extends Dialog {
public interface OnColorChangedListener {
void colorChanged(String key, int color);
}
private OnColorChangedListener mListener;
private int mInitialColor, mDefaultColor;
private String mKey;
private class ColorPickerView extends View {
private Paint mPaint;
private float mCurrentHue = 0;
private int mCurrentX = 0, mCurrentY = 0;
private int mCurrentColor, mDefaultColor;
private final int[] mHueBarColors = new int[258];
private int[] mMainColors = new int[65536];
private OnColorChangedListener mListener;
private int width,height;
ColorPickerView(Context c, OnColorChangedListener l, int color,
int defaultColor) {
super(c);
mListener = l;
mDefaultColor = defaultColor;
// Get the current hue from the current color and update the main
// color field
float[] hsv = new float[3];
Color.colorToHSV(color, hsv);
mCurrentHue = hsv[0];
updateMainColors();
mCurrentColor = color;
// Initialize the colors of the hue slider bar
int index = 0;
for (float i = 0; i < 256; i += 256 / 42) // Red (#f00) to pink
// (#f0f)
{
mHueBarColors[index] = Color.rgb(255, 0, (int) i);
index++;
}
for (float i = 0; i < 256; i += 256 / 42) // Pink (#f0f) to blue
// (#00f)
{
mHueBarColors[index] = Color.rgb(255 - (int) i, 0, 255);
index++;
}
for (float i = 0; i < 256; i += 256 / 42) // Blue (#00f) to light
// blue (#0ff)
{
mHueBarColors[index] = Color.rgb(0, (int) i, 255);
index++;
}
for (float i = 0; i < 256; i += 256 / 42) // Light blue (#0ff) to
// green (#0f0)
{
mHueBarColors[index] = Color.rgb(0, 255, 255 - (int) i);
index++;
}
for (float i = 0; i < 256; i += 256 / 42) // Green (#0f0) to yellow
// (#ff0)
{
mHueBarColors[index] = Color.rgb((int) i, 255, 0);
index++;
}
for (float i = 0; i < 256; i += 256 / 42) // Yellow (#ff0) to red
// (#f00)
{
mHueBarColors[index] = Color.rgb(255, 255 - (int) i, 0);
index++;
}
// Initializes the Paint that will draw the View
mPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
mPaint.setTextAlign(Paint.Align.CENTER);
mPaint.setTextSize(12);
}
// Get the current selected color from the hue bar
private int getCurrentMainColor() {
int translatedHue = 255 - (int) (mCurrentHue * 255 / 360);
int index = 0;
for (float i = 0; i < 256; i += 256 / 42) {
if (index == translatedHue)
return Color.rgb(255, 0, (int) i);
index++;
}
for (float i = 0; i < 256; i += 256 / 42) {
if (index == translatedHue)
return Color.rgb(255 - (int) i, 0, 255);
index++;
}
for (float i = 0; i < 256; i += 256 / 42) {
if (index == translatedHue)
return Color.rgb(0, (int) i, 255);
index++;
}
for (float i = 0; i < 256; i += 256 / 42) {
if (index == translatedHue)
return Color.rgb(0, 255, 255 - (int) i);
index++;
}
for (float i = 0; i < 256; i += 256 / 42) {
if (index == translatedHue)
return Color.rgb((int) i, 255, 0);
index++;
}
for (float i = 0; i < 256; i += 256 / 42) {
if (index == translatedHue)
return Color.rgb(255, 255 - (int) i, 0);
index++;
}
return Color.RED;
}
// Update the main field colors depending on the current selected hue
private void updateMainColors() {
int mainColor = getCurrentMainColor();
int index = 0;
int[] topColors = new int[256];
for (int y = 0; y < 256; y++) {
for (int x = 0; x < 256; x++) {
if (y == 0) {
mMainColors[index] = Color.rgb(
255 - (255 - Color.red(mainColor)) * x / 255,
255 - (255 - Color.green(mainColor)) * x / 255,
255 - (255 - Color.blue(mainColor)) * x / 255);
topColors[x] = mMainColors[index];
} else
mMainColors[index] = Color.rgb(
(255 - y) * Color.red(topColors[x]) / 255,
(255 - y) * Color.green(topColors[x]) / 255,
(255 - y) * Color.blue(topColors[x]) / 255);
index++;
}
}
}
@Override
protected void onDraw(Canvas canvas) {
int translatedHue = 255 - (int) (mCurrentHue * 255 / 360);
// Display all the colors of the hue bar with lines
for (int x = 0; x < 256; x++) {
// If this is not the current selected hue, display the actual
// color
if (translatedHue != x) {
mPaint.setColor(mHueBarColors[x]);
mPaint.setStrokeWidth(1);
} else // else display a slightly larger black line
{
mPaint.setColor(Color.BLACK);
mPaint.setStrokeWidth(3);
}
canvas.drawLine(x + 10, 0, x + 10, 40, mPaint);
// canvas.drawLine(0, x+10, 40, x+10, mPaint);
//canvas.drawLine(x + width/27, 0, x + width/27,height/8 , mPaint);
}
// Display the main field colors using LinearGradient
for (int x = 0; x < 256; x++) {
int[] colors = new int[2];
colors[0] = mMainColors[x];
colors[1] = Color.BLACK;
Shader shader = new LinearGradient(0, 50, 0, 306, colors, null,
Shader.TileMode.REPEAT);//0,50,0,306
mPaint.setShader(shader);
canvas.drawLine(x + 10, 50, x + 10, 306, mPaint);
//canvas.drawLine(x + width/27, height/8 + 10, x + width/27, height*(5/6), mPaint);
}
mPaint.setShader(null);
// Display the circle around the currently selected color in the
// main field
if (mCurrentX != 0 && mCurrentY != 0) {
mPaint.setStyle(Paint.Style.STROKE);
mPaint.setColor(Color.BLACK);
canvas.drawCircle(mCurrentX, mCurrentY, 10, mPaint);
}
// Draw a 'button' with the currently selected color
mPaint.setStyle(Paint.Style.FILL);
mPaint.setColor(mCurrentColor);
//canvas.drawRect(10, 316, 138, 356, mPaint);
//canvas.drawRect(width/27, height*(5/6), width/2, height, mPaint);
// Set the text color according to the brightness of the color
if (Color.red(mCurrentColor) + Color.green(mCurrentColor)
+ Color.blue(mCurrentColor) < 384)
mPaint.setColor(Color.WHITE);
else
mPaint.setColor(Color.BLACK);
// canvas.drawText(
// "New Color", 74,
//340, mPaint);
// Draw a 'button' with the default color
mPaint.setStyle(Paint.Style.FILL);
mPaint.setColor(mDefaultColor);
//canvas.drawRect(138, 316, 266, 356, mPaint);
//canvas.drawRect(width/2, height*(5/6), width, height, mPaint);
// Set the text color according to the brightness of the color
if (Color.red(mDefaultColor) + Color.green(mDefaultColor)
+ Color.blue(mDefaultColor) < 384)
mPaint.setColor(Color.WHITE);
else
mPaint.setColor(Color.BLACK);
//canvas.drawText(
// "Default Color", 202, 340,
//mPaint);
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
setMeasuredDimension(276,366 );//276,366
width = widthMeasureSpec;
height = heightMeasureSpec;
}
@Override
public boolean onTouchEvent(MotionEvent event) {
if (event.getAction() != MotionEvent.ACTION_DOWN)
return true;
float x = event.getX();
float y = event.getY();
// If the touch event is located in the hue bar
if (x > 10 && x < 266 && y > 0 && y < 40) {
// Update the main field colors
mCurrentHue = (255 - x) * 360 / 255;
updateMainColors();
// Update the current selected color
int transX = mCurrentX - 10;
int transY = mCurrentY - 60;
int index = 256 * (transY - 1) + transX;
if (index > 0 && index < mMainColors.length)
mCurrentColor = mMainColors[256 * (transY - 1) + transX];
// Force the redraw of the dialog
invalidate();
}
// If the touch event is located in the main field
if (x > 10 && x < 266 && y > 50 && y < 306) {
mCurrentX = (int) x;
mCurrentY = (int) y;
int transX = mCurrentX - 10;
int transY = mCurrentY - 60;
int index = 256 * (transY - 1) + transX;
if (index > 0 && index < mMainColors.length) {
// Update the current color
mCurrentColor = mMainColors[index];
mListener.colorChanged("", mCurrentColor);
// Force the redraw of the dialog
invalidate();
}
}
// If the touch event is located in the left button, notify the
// listener with the current color
//if (x > 10 && x < 138 && y > 316 && y < 356)
// mListener.colorChanged("", mCurrentColor);
// If the touch event is located in the right button, notify the
// listener with the default color
//if (x > 138 && x < 266 && y > 316 && y < 356)
// mListener.colorChanged("", mDefaultColor);
return true;
}
}
public ColorPickerDialog(Context context, OnColorChangedListener listener,
String key, int initialColor, int defaultColor) {
super(context);
mListener = listener;
mKey = key;
mInitialColor = initialColor;
mDefaultColor = defaultColor;
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
OnColorChangedListener l = new OnColorChangedListener() {
public void colorChanged(String key, int color) {
mListener.colorChanged(mKey, color);
dismiss();
}
};
setContentView(new ColorPickerView(getContext(), l, mInitialColor,
mDefaultColor));
setTitle("Pick Text Color");
}
}
然后当你选择colorchangelistener时得到int颜色，或者它是否使用默认值或者将int保存到播放器中
编辑：我认为我剥离了这个默认值，因为它在各种设备上都没有很好的扩展，我记不起来了，你可能会通过它检查并检查，它虽然有效 你需要一个按钮或什么来触发颜色选择器在您的活动中
import "your package name".ColorPickerDialog
然后进行活动
implement OnColorChangeListener
然后在颜色选择器的按钮出现
ColorPickerDialog color = new ColorPickerDialog(this,this, "picker",Color.BLACK,Color.WHITE);
color.show();
您应该能够覆盖的方法，因为您实现了OnColorChangeListener是
@Override
public void colorChanged(String key, int color) {
// TODO Auto-generated method stub
paint.setColor(color);
}
我只有paint.setColor（），但是你可以保存int颜色，这是在颜色选择器中为你的Player类选择的颜色，并将它用作文本视图中的文本颜色。
答案 1 :(得分：0)
您可以显示颜色选择器对话框，让用户选择颜色。颜色选择器对话框和如何使用它的示例可以在这里找到：https://github.com/chiralcode/Android-Color-Picker/