onCreate方法中利用findViewById函数查找TextView对象
mTextView01 =(TextView) findViewById(R.id.myTextView01);
String str_2 = "welcome android‘s world";
mTextView01.setText(str_2); //将str_2的值传递给定义的TextView,textview的text值设为str_2
注意 需要先说明textview对象
import android.widget.textview;
之后在activity中说明
private textview mtextview01;
textview的settext支持以下多态构造:
public final void settext(charsequence text)
publice final void settext(int resid)
publice viod settext(charsequence text,textview.buffertype type)
publice final void settext(int resid,textview.buffertype type)
publice final viod settext(char[] text, int start, int len)
例:char char_1[] = new char[5];
char_1[0] = ‘a‘;
char_1[1] = ‘b‘;
char_1[2] = ‘c‘;
char_1[3] = ‘d‘;
char_1[4] = ‘e‘;
mTextView01.setText(char_1,1,3;)
输出为“bcd”
html Tag的转换
<TextView xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="wrap_content" android:layout_height="wrap_content" android:autoLink="all" android:text="please button: http//www.baidu.com"/> 错误:you must supply a layout_width attribute这个错误出现是由于xml文件内属性未定义;