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| package com.cloay.ctagviewdemo.widget;
import com.cloay.ctagviewdemo.R;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.Context;
import android.graphics.Color;
import android.util.AttributeSet;
import android.util.DisplayMetrics;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.LinearLayout;
/**
*
* @ClassName: CTagView
* @Description: A costum view for tag list
* @author cloay Email:shangrody@gmail.com
* @date 2014-8-5 ÉÏÎç10:43:22
*
*/
public class CTagView extends LinearLayout {
private final int DEFAULT_TAG_HEIGHT = 35;
private final int DEFAULT_BUTTON_MARGIN = 12;
private final int DEFAULT_BUTTON_PADDING = 12;
private final int DEFAULT_BUTTON_PADDING_TOP = 6;
private final int DEFAULT_LAYOUT_MARGIN_TOP = 12;
private Context mContext;
private OnTagClickListener onTagClickerListener;
public CTagView(Context context) {
super(context);
mContext = context;
setOrientation(VERTICAL); //set orientation vertical
}
public CTagView(Context context, AttributeSet attrs){
super(context, attrs);
mContext = context;
}
@SuppressLint("NewApi")
public CTagView(Context context, AttributeSet attrs, int defStyle){
super(context, attrs, defStyle);
mContext = context;
}
/**
*
* @Name: setTags
* @Description:
* @param tags
* @return void
*
*/
@SuppressWarnings("deprecation")
public void setTags(String []tags){
removeAllViews(); //remove all old views, at first
if(tags.length > 0){
LinearLayout tempLayout = new LinearLayout(mContext);
tempLayout.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT));
addView(tempLayout);
int tempWidth = 0;
for(int i = 0; i < tags.length; i++){
final String tagStr = tags[i];
Button button = new Button(mContext);
button.setText(tagStr);
button.setTextColor(Color.parseColor("#666666"));
button.setTextSize(15);
button.setPadding(dip2px(DEFAULT_BUTTON_PADDING), dip2px(DEFAULT_BUTTON_PADDING_TOP),
dip2px(DEFAULT_BUTTON_PADDING), dip2px(DEFAULT_BUTTON_PADDING_TOP));
button.setBackgroundDrawable(getResources().getDrawable(R.drawable.tag_bg));
button.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if(onTagClickerListener != null)
onTagClickerListener.onTagClick(tagStr);
}
});
int btnWidth = (int) (2*dip2px(DEFAULT_BUTTON_PADDING) + button.getPaint().measureText(button.getText().toString()));
LayoutParams layoutParams = new LayoutParams(btnWidth, dip2px(DEFAULT_TAG_HEIGHT));
layoutParams.leftMargin = dip2px(DEFAULT_BUTTON_MARGIN);
tempWidth += dip2px(DEFAULT_BUTTON_MARGIN) + btnWidth; //add tag width
Log.v("CTagView", "width:" + tempWidth);
//the last tag margin right DEFAULT_BUTTON_MARGIN, don't forget
if(tempWidth + dip2px(DEFAULT_BUTTON_MARGIN) > getDeviceWidth()){ //if out of screen, add a new layout
tempLayout = new LinearLayout(mContext);
LayoutParams lParams = new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT);
lParams.topMargin = dip2px(DEFAULT_LAYOUT_MARGIN_TOP);
tempLayout.setLayoutParams(lParams);
addView(tempLayout);
tempWidth = (int) (2*dip2px(DEFAULT_BUTTON_PADDING) + button.getPaint().measureText(button.getText().toString()));
}
tempLayout.addView(button, layoutParams);
Log.v("CTagView", "button:" + button.getWidth());
}
}else{
Button button = new Button(mContext);
button.setText("No tags");
button.setTextColor(Color.parseColor("#666666"));
button.setTextSize(15);
button.setPadding(dip2px(DEFAULT_BUTTON_PADDING), dip2px(DEFAULT_BUTTON_PADDING_TOP),
dip2px(DEFAULT_BUTTON_PADDING), dip2px(DEFAULT_BUTTON_PADDING_TOP));
button.setBackgroundDrawable(getResources().getDrawable(R.drawable.tag_bg));
LayoutParams layoutParams = new LayoutParams(LayoutParams.WRAP_CONTENT, dip2px(DEFAULT_TAG_HEIGHT));
layoutParams.leftMargin = dip2px(DEFAULT_BUTTON_MARGIN);
addView(button, layoutParams);
}
}
/**
*
* @Name: setOnTagClickListener
* @Description:
* @param listener
*
*/
public void setOnTagClickListener(OnTagClickListener listener){
onTagClickerListener = listener;
}
/**
*
* @ClassName: TagClickerListener
* @Description: this is a interface
* @author cloay Email:shangrody@gmail.com
* @date 2014-8-5 ÉÏÎç10:40:07
*
*/
public interface OnTagClickListener{
/**
*
* @Name: onTagClick
* @Description: Callback this after tag was clicked
* @param tag
*
*/
public void onTagClick(String tag);
}
/**
*
* @Name: getDeviceWidth
* @Description: get device width
* @return int
*
*/
private int getDeviceWidth(){
DisplayMetrics metrics = new DisplayMetrics();
((Activity)mContext).getWindowManager().getDefaultDisplay().getMetrics(metrics);
return metrics.widthPixels;
}
/**
*
* @Name: dip2px
* @Description: dip to px
* @param dipValue
* @return int
*
*/
private int dip2px(float dipValue) {
final float scale = mContext.getResources().getDisplayMetrics().density;
return (int) (dipValue * scale + 0.5f);
}
}
|
