echochio

網路上找到的改一下。


package test.com; 

import android.app.Activity; 
import android.graphics.Color; 
import android.os.Bundle; 
import android.text.SpannableString; 
import android.text.Spanned; 
import android.text.method.ScrollingMovementMethod; 
import android.text.style.ForegroundColorSpan; 
import android.text.style.RelativeSizeSpan; 
import android.util.DisplayMetrics;
import android.view.Gravity;
import android.view.Window;
import android.view.WindowManager;
import android.widget.FrameLayout;
import android.widget.TextView; 
 
   public class MainActivity extends Activity { 
     TextView tv;
     int width,height;
     @Override 
	 protected void onCreate(Bundle savedInstanceState) { 
	  super.onCreate(savedInstanceState); 
	  
	  requestWindowFeature(Window.FEATURE_NO_TITLE);   
	    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, 
	    WindowManager.LayoutParams.FLAG_FULLSCREEN);
	    DisplayMetrics metrics = new DisplayMetrics();
	    getWindowManager().getDefaultDisplay().getMetrics(metrics);
	    
 
	    tv =new TextView(this);
	    FrameLayout.LayoutParams layoutParams_tv = new FrameLayout.LayoutParams(metrics.widthPixels, metrics.heightPixels);
 	    layoutParams_tv.gravity = Gravity.LEFT|Gravity.TOP;
	    layoutParams_tv.leftMargin = 0;
	    layoutParams_tv.topMargin = 0;
	    setContentView(tv);
 
	  String str = "每个人都有一个死角， \n "
	  +"自己走不出来，别人也闯不进去。\n我把最深沉的放在那里。\n你不懂我，我不怪你。www.baidu.com "
	  + "\n每个人都有一道伤口，\n或深或浅，盖上布，以为不在。\n我把最殷红的鲜血涂在那里。\n你不懂我，我不怪你。" 
	  +	"\n每个人都有一段告白,\n忐忑、不安，却饱含真心和勇气。\n我把最抒情的语言用在那里,\n你不懂我，我不怪你。" 
	  + "\n每个人都有一场爱恋,\n用心、用情、用力，感动也感伤。\n我把最炙热的心情藏在那里,\n你不懂我，我不怪你。" 
	  + "\n每个人都有一行眼泪,\n喝下的冰冷的水，酝酿成的热泪。\n我把最心酸的委屈汇在那里,\n你不懂我，我不怪你。"; 
	  ;
	  SpannableString spanStr = new SpannableString(str); 

	  for (int i=0;i<(str.length()-2);i+=2) {
	  spanStr.setSpan(new RelativeSizeSpan(1f), i, i+1,Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 
	  spanStr.setSpan(new ForegroundColorSpan(Color.BLACK), i, i+1,Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 
	  
	  spanStr.setSpan(new RelativeSizeSpan(2f), i+1, i+2,Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 
	  spanStr.setSpan(new ForegroundColorSpan(Color.MAGENTA), i+1, i+2,Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 
	  }

	  //设置textview超出屏幕可滚动 
	  tv.setMovementMethod(ScrollingMovementMethod.getInstance()); 
	 
	  tv.setText(spanStr); 
	  
	  } 
	}