Android经常使用UI组件 - TextView - android

TextView是Android里面用的最多的UI组件，一般使用在须要显示一些信息的时候，其不能输入，仅仅能初始设定或者在程序中改动。
实例：TextViewDemo 执行效果：
代码清单： 布局文件：main.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:orientation="vertical"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    ><TextView    android:layout_width="fill_parent"    android:layout_height="wrap_content"    android:text="这里是TextView，你能够在这里显示一些文本信息。"    /></LinearLayout>

Java源码文件：MainActivity.java

package com.rainsong.textviewdemo;import android.app.Activity;import android.os.Bundle;public class MainActivity extends Activity{    /** Called when the activity is first created. */    @Override    public void onCreate(Bundle savedInstanceState)    {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);    }}

API知识点 Activity public class Activity extends ContextThemeWrapper implements ComponentCallbacks2 KeyEvent.Callback LayoutInflater.Factory2 View.OnCreateContextMenuListener Window.Callback
Known Direct Subclasses AccountAuthenticatorActivity, ActivityGroup, AliasActivity, ExpandableListActivity, FragmentActivity, ListActivity, NativeActivity
Known Indirect Subclasses LauncherActivity, PreferenceActivity, TabActivity
void setContentView(int layoutResID) Set the activity content from a layout resource.
TextView public class TextView extends View implements ViewTreeObserver.OnPreDrawListener
Known Direct Subclasses Button, CheckedTextView, Chronometer, DigitalClock, EditText, TextClock
Known Indirect Subclasses AutoCompleteTextView, CheckBox, CompoundButton, ExtractEditText, MultiAutoCompleteTextView, RadioButton, Switch, ToggleButton
Class Overview Displays text to the user and optionally allows them to edit it. A TextView is a complete text editor, however the basic class is configured to not allow editing; see EditText for a subclass that configures the text view for editing.
Public Constructors TextView(Context context) TextView(Context context, AttributeSet attrs) TextView(Context context, AttributeSet attrs, int defStyle)

Android经常使用UI组件 - TextView

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