textview对单词设置点击事件，内容过多时卡顿

nickDeLove 2014-10-13 08:32:32

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textview对单词设置点击事件内容过多时滑动，滑动停止卡顿，有人遇到过吗，如何解决卡顿的问题，或者有其他更好的方案吗







public class MainActivity extends Activity implements

		SwipeRefreshLayout.OnRefreshListener {



	TextView tv, tv2;

	SwipeRefreshLayout swipeLayout;

	ScrollView scllScrollView;

	String content = "My                        " +

			" father was a self-taught mandolin player. He was one of the best string instrument players in our town. He could not read music, but if he heard a tune a few times, he could play it. When he was younger, he was a member of a small country music band. They would play at local dances and on a few occasions would play for the local radio station. He often told us how he had auditioned and earned a position in a band that featured Patsy Cline as their lead singer. He told the family that after he was hired he never went back. Dad was a very religious man. He stated that there was a lot of drinking and cursing the day of his audition and he did not want to be around that type of environment.My                         father was a self-taught mandolin player. He was one of the best string instrument players in our town. He could not read music, but if he heard a tune a few times, he could play it. When he was younger, he was a member of a small country music band. They would play at local dances and on a few occasions would play for the local radio station. He often told us how he had auditioned and earned a position in a band that featured Patsy Cline as their lead singer. He told the family that after he was hired he never went back. Dad was a very religious man. He stated that there was a lot of drinking and cursing the day of his audition and he did not want to be around that type of environment."

+" father was a self-taught mandolin player. He was one of the best string instrument players in our town. He could not read music, but if he heard a tune a few times, he could play it. When he was younger, he was a member of a small country music band. They would play at local dances and on a few occasions would play for the local radio station. He often told us how he had auditioned and earned a position in a band that featured Patsy Cline as their lead singer. He told the family that after he was hired he never went back. Dad was a very religious man. He stated that there was a lot of drinking and cursing the day of his audition and he did not want to be around that type of environment.My                         father was a self-taught mandolin player. He was one of the best string instrument players in our town. He could not read music, but if he heard a tune a few times, he could play it. When he was younger, he was a member of a small country music band. They would play at local dances and on a few occasions would play for the local radio station. He often told us how he had auditioned and earned a position in a band that featured Patsy Cline as their lead singer. He told the family that after he was hired he never went back. Dad was a very religious man. He stated that there was a lot of drinking and cursing the day of his audition and he did not want to be around that type of environment."

			+" father was a self-taught mandolin player. He was one of the best string instrument players in our town. He could not read music, but if he heard a tune a few times, he could play it. When he was younger, he was a member of a small country music band. They would play at local dances and on a few occasions would play for the local radio station. He often told us how he had auditioned and earned a position in a band that featured Patsy Cline as their lead singer. He told the family that after he was hired he never went back. Dad was a very religious man. He stated that there was a lot of drinking and cursing the day of his audition and he did not want to be around that type of environment.My                         father was a self-taught mandolin player. He was one of the best string instrument players in our town. He could not read music, but if he heard a tune a few times, he could play it. When he was younger, he was a member of a small country music band. They would play at local dances and on a few occasions would play for the local radio station. He often told us how he had auditioned and earned a position in a band that featured Patsy Cline as their lead singer. He told the family that after he was hired he never went back. Dad was a very religious man. He stated that there was a lot of drinking and cursing the day of his audition and he did not want to be around that type of environment."

+" father was a self-taught mandolin player. He was one of the best string instrument players in our town. He could not read music, but if he heard a tune a few times, he could play it. When he was younger, he was a member of a small country music band. They would play a instrument players in our town. He could not read music, but if he heard a tune a few times, he could play it. When he was younger, he was a member of a small country music band. They would play at local dances and on a few occasions would play for the local radio station. He often told us how he had auditioned and earned a position in a band that featured Patsy Cline as their lead singer. He told the family that after he was hired he never went back. Dad was a very religious man. He stated that there wang the day of his audition and he did not want to be around that type of environment."

			+ "Occasionally, Dad would get out his mandolin and play for the family. We three children: Trisha, Monte and I, George Jr. few times. I loved to sing, but I never learned how to play the mandolin. This is something I regret to this day.";



	@Override

	protected void onCreate(Bundle savedInstanceState) {

		super.onCreate(savedInstanceState);

		setContentView(R.layout.activity_main);

		scllScrollView = (ScrollView) findViewById(R.id.scll);

		tv = (TextView) this.findViewById(R.id.tv);



		SpannableStringBuilder ssb = new SpannableStringBuilder(content);

		tv.setText(ssb, BufferType.SPANNABLE);

		getEachWord(tv);

		tv.setMovementMethod(LinkMovementMethod.getInstance());



	}



	public void onRefresh() {

		new Handler().postDelayed(new Runnable() {

			@Override

			public void run() {

				swipeLayout.setRefreshing(false);

			}

		}, 5000);

	}



	PopupWindow popupWindow;



	@SuppressWarnings("deprecation")

	private void showPopUp(View v, int x, int y, String str) {

		LinearLayout layout = new LinearLayout(this);

		layout.setBackgroundColor(Color.GRAY);

		TextView tv = new TextView(this);

		tv.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,

				LayoutParams.WRAP_CONTENT));

		tv.setText("I'm a pop --" + str);

		tv.setTextColor(Color.WHITE);

		layout.addView(tv);



		popupWindow = new PopupWindow(layout, 120, 120);



		popupWindow.setFocusable(true);

		popupWindow.setOutsideTouchable(true);

		popupWindow.setBackgroundDrawable(new BitmapDrawable());



		int[] location = new int[2];

		v.getLocationOnScreen(location);

		popupWindow.showAtLocation(v, Gravity.NO_GRAVITY, x, y);

	}



	/**

	 * 点击响应方法

	 * 

	 * @param textView

	 */

	public void getEachWord(TextView textView) {

		Log.i("main", "getEachWord .....");

		Spannable spans = (Spannable) textView.getText();

		Integer[] indices = getIndices(textView.getText().toString().trim()

				+ " ", ' ');



//		// 单词开始点

		int start = 0;

		// 单词结束点

		int end = 0;

		for (int i = 0; i < indices.length; i++) {

			end = (i < indices.length ? indices[i] : spans.length());

//			Log.i(tag, "start:" + start + " end:" + end);

			ClickableSpan clickSpan = getClickableSpan(spans, start, end,

					textView.getText().toString().length());

			// to cater last/only word

			spans.setSpan(clickSpan, start, end,

					Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);

			start = end + 1;

		}

		// 改变选中文本的高亮颜 

		textView.setHighlightColor(Color.TRANSPARENT);

	}



	String tag = "wydemo";



	private ClickableSpan getClickableSpan(final Spannable spans,

			final int start, final int end, final int total) {

		return new ClickableSpan() {

			@Override

			public void onClick(View widget) {



				// TextView tv = (TextView) widget;

				// String s = tv

				// .getText()

				// .subSequence(tv.getSelectionStart(),

				// tv.getSelectionEnd()).toString();

				//

				// spans.setSpan(new ForegroundColorSpan(Color.BLACK), 0, total,

				// Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);

				// tv.setTextColor(getResources().getColor(android.R.color.black));

				// spans.setSpan(new ForegroundColorSpan(Color.RED), start, end,

				// Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);

				// Layout layout = tv.getLayout();

				// int linenumber = layout.getLineForOffset(start);

				// Rect rect = new Rect();

				// layout.getLineBounds(linenumber, rect);

				// float x =

				// layout.getPrimaryHorizontal(tv.getSelectionStart());

				// Log.i(tag,

				// "ClickableSpan linenumber:"+linenumber+" start:"+start+" end:"+end+" s");

				// showPopUp(tv, (int) x,

				// rect.bottom - scllScrollView.getScrollY(), s);

			}



			@Override

			public void updateDrawState(TextPaint ds) {

				ds.setColor(Color.BLACK);

				ds.setUnderlineText(false);

			}

		};

	}



	class CustomizedClickable extends ClickableSpan {



		/*

		 * (non-Javadoc)

		 * 

		 * @see android.text.style.ClickableSpan#onClick(android.view.View)

		 */

		@Override

		public void onClick(View arg0) {

			Toast.makeText(MainActivity.this, "come on success",

					Toast.LENGTH_SHORT).show();

		}



		@Override

		public void updateDrawState(TextPaint ds) {

			super.updateDrawState(ds);

			ds.setColor(Color.GREEN);

			ds.setAlpha(50);

			Log.i(tag, "updateDrawState");

		}



	}



	public static Integer[] getIndices(String s, char c) {

		int pos = s.indexOf(c, 0);

		List<Integer> indices = new ArrayList<Integer>();

		while (pos != -1) {

			indices.add(pos);

			pos = s.indexOf(c, pos + 1);

		}

		return (Integer[]) indices.toArray(new Integer[0]);

	}



}