低版本系统兼容的ActionBar（三）自定义Item视图+进度条的实现+下拉导航+透明ActionBar

[b]一、自定义MenuItem的视图[/b]

custom_view.xml （就是一个单选按钮）

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:gravity="left|center_vertical"
android:orientation="horizontal"
>
<RadioGroup
android:id="@+id/radio_nav"
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
>
<RadioButton
android:text="Custom"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#ffffff"
/>
<RadioButton
android:text="View!"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#ffffff"
/>
</RadioGroup>
</LinearLayout>

MainActivity.java

//Inflate the custom view
View customNav = LayoutInflater.from(this).inflate(R.layout.custom_view, null);
//Bind to its state change
((RadioGroup)customNav.findViewById(R.id.radio_nav)).setOnCheckedChangeListener(new OnCheckedChangeListener() {
@Override
public void onCheckedChanged(RadioGroup group, int checkedId) {
Toast.makeText(MainActivity.this, "Navigation selection changed.", Toast.LENGTH_SHORT).show();
}
});

//Attach to the action bar
getSupportActionBar().setCustomView(customNav);
getSupportActionBar().setDisplayShowCustomEnabled(true);

[b]二、添加圆形模糊进度的进度条[/b]

[b]

[/b]

package com.kale.actionbar02;

import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.Window;
import android.widget.RadioGroup;
import android.widget.RadioGroup.OnCheckedChangeListener;
import android.widget.Toast;

public class MainActivity extends ActionBarActivity {

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
supportRequestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
setContentView(R.layout.activity_main);
//设置actionbar上面显示进度条，true表示显示，如果是false表示不显示
  setSupportProgressBarIndeterminateVisibility(true);//Attach to the action bar
getSupportActionBar().setCustomView(customNav);
getSupportActionBar().setDisplayShowCustomEnabled(true);
}

}

[b]三、添加有进度的横向进度条[/b]

package com.kale.actionbar02;

import android.os.Bundle;
import android.os.Handler;
import android.support.v7.app.ActionBarActivity;
import android.view.View;
import android.view.Window;

public class MainActivity extends ActionBarActivity {
private int mProgress = 100;
Handler mHandler = new Handler();
Runnable mProgressRunner = new Runnable() {
@Override
public void run() {
mProgress += 2;
// Normalize our progress along the progress bar's scale
int progress = (Window.PROGRESS_END - Window.PROGRESS_START) / 100* mProgress;
setSupportProgress(progress);

if (mProgress < 100) {
mHandler.postDelayed(mProgressRunner, 50);
}
}
};

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
  supportRequestWindowFeature(Window.FEATURE_PROGRESS);
setContentView(R.layout.activity_main);
// 设置actionbar上面显示进度条，true表示显示，如果是false表示不显示
//setSupportProgressBarVisibility(true);//设置初始状态是否显示进度条，一般我们不显示。在用的时候再显示它

findViewById(R.id.button_id).setOnClickListener(
new View.OnClickListener() {
@Override
public void onClick(View arg0) {
if (mProgress == 100) {
mProgress = 0;
mProgressRunner.run();
}
}
});

}

}

[b]四、添加下拉导航+悬浮模式[/b]

给ActionBar添加下拉导航的方法都是添加一个适配器，可以使简单的ArrayAdapter，也可以使SpinnerAdapter，添加完数据后再绑定个监听器。其实和Spinner没啥太大的区别。悬浮模式是可以让布局文件从ActionBar底下通过，可以实现透明效果。其代码就一行：

　　　　 // 设置ActionBar为悬浮的，就是说悬浮在布局文件上
supportRequestWindowFeature(Window.FEATURE_ACTION_BAR_OVERLAY);

注意看一下布局的，上边距。是用的ActionBar的高度来指定的

<?xml version="1.0" encoding="utf-8"?>

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<ScrollView
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:paddingLeft="10dp"
android:paddingRight="10dp"
android:paddingTop="?actionBarSize"
android:orientation="vertical">

<TextView
android:id="@+id/bunch_of_text"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
</LinearLayout>
</ScrollView>
</FrameLayout>

下面是下拉导航的代码：

package com.kale.actionbar02;

import android.content.Context;
import android.os.Bundle;
import android.support.v7.app.ActionBar;
import android.support.v7.app.ActionBar.OnNavigationListener;
import android.support.v7.app.ActionBarActivity;
import android.view.Window;
import android.widget.ArrayAdapter;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends ActionBarActivity {

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// 设置ActionBar为悬浮的，就是说悬浮在布局文件上
        supportRequestWindowFeature(Window.FEATURE_ACTION_BAR_OVERLAY);
setContentView(R.layout.activity_main);
// 将ActionBar的操作模型设置为NAVIGATION_MODE_LIST
getSupportActionBar().setNavigationMode(ActionBar.NAVIGATION_MODE_LIST);
getSupportActionBar().setTitle(null);

Context context = getSupportActionBar().getThemedContext();
ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(
context, R.array.locations,
android.R.layout.simple_spinner_dropdown_item);
  getSupportActionBar().setListNavigationCallbacks(adapter,
new DropDownListenser());

// Load partially transparent black background
getSupportActionBar().setBackgroundDrawable(
getResources().getDrawable(R.drawable.bar_color));

TextView bunchOfText = (TextView) findViewById(R.id.bunch_of_text);
bunchOfText.setText(builder.toString());
}

/**
* 实现 ActionBar.OnNavigationListener接口
*/
class DropDownListenser implements OnNavigationListener {
// 得到和Adapter里一致的字符数组
String[] listNames = getResources().getStringArray(R.array.locations);

@Override
public boolean onNavigationItemSelected(int itemPosition, long itemId) {
Toast.makeText(getApplicationContext(), listNames[itemPosition], 0)
.show();
return false;
}

}

}

values/array.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
<string-array name="locations">
<item>Home</item>
<item>Email</item>
<item>Calendar</item>
<item>Browser</item>
<item>Clock</item>
</string-array>
</resources>

全部的代码：

package com.kale.actionbar02;

import android.content.Context;
import android.os.Bundle;
import android.support.v7.app.ActionBar;
import android.support.v7.app.ActionBar.OnNavigationListener;
import android.support.v7.app.ActionBarActivity;
import android.view.Window;
import android.widget.ArrayAdapter;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends ActionBarActivity {

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// 设置ActionBar为悬浮的，就是说悬浮在布局文件上
supportRequestWindowFeature(Window.FEATURE_ACTION_BAR_OVERLAY);
setContentView(R.layout.activity_main);
// 将ActionBar的操作模型设置为NAVIGATION_MODE_LIST
getSupportActionBar().setNavigationMode(ActionBar.NAVIGATION_MODE_LIST);
getSupportActionBar().setTitle(null);

Context context = getSupportActionBar().getThemedContext();
ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(
context, R.array.locations,
android.R.layout.simple_spinner_dropdown_item);
getSupportActionBar().setListNavigationCallbacks(adapter,
new DropDownListenser());

// Load partially transparent black background
getSupportActionBar().setBackgroundDrawable(
getResources().getDrawable(R.drawable.bar_color));

StringBuilder builder = new StringBuilder();
for (int i = 0; i < 3; i++) {
for (String dialog : DIALOGUE) {
builder.append(dialog).append("\n\n");
}
}

TextView bunchOfText = (TextView) findViewById(R.id.bunch_of_text);
bunchOfText.setText(builder.toString());
}

/**
* 实现 ActionBar.OnNavigationListener接口
*/
class DropDownListenser implements OnNavigationListener {
// 得到和Adapter里一致的字符数组
String[] listNames = getResources().getStringArray(R.array.locations);

@Override
public boolean onNavigationItemSelected(int itemPosition, long itemId) {
Toast.makeText(getApplicationContext(), listNames[itemPosition], 0)
.show();
return false;
}

}

public static final String[] DIALOGUE = new String[] {
"So shaken as we are, so wan with care,"
+ "Find we a time for frighted peace to pant,"
+ "And breathe short-winded accents of new broils"
+ "To be commenced in strands afar remote."
+ "No more the thirsty entrance of this soil"
+ "Shall daub her lips with her own children's blood;"
+ "Nor more shall trenching war channel her fields,"
+ "Nor bruise her flowerets with the armed hoofs"
+ "Of hostile paces: those opposed eyes,"
+ "Which, like the meteors of a troubled heaven,"
+ "All of one nature, of one substance bred,"
+ "Did lately meet in the intestine shock"
+ "And furious close of civil butchery"
+ "Shall now, in mutual well-beseeming ranks,"
+ "March all one way and be no more opposed"
+ "Against acquaintance, kindred and allies:"
+ "The edge of war, like an ill-sheathed knife,"
+ "No more shall cut his master. Therefore, friends,"
+ "As far as to the sepulchre of Christ,"
+ "Whose soldier now, under whose blessed cross"
+ "We are impressed and engaged to fight,"
+ "Forthwith a power of English shall we levy;"
+ "Whose arms were moulded in their mothers' womb"
+ "To chase these pagans in those holy fields"
+ "Over whose acres walk'd those blessed feet"
+ "Which fourteen hundred years ago were nail'd"
+ "For our advantage on the bitter cross."
+ "But this our purpose now is twelve month old,"
+ "And bootless 'tis to tell you we will go:"
+ "Therefore we meet not now. Then let me hear"
+ "Of you, my gentle cousin Westmoreland,"
+ "What yesternight our council did decree"
+ "In forwarding this dear expedience.",

"Hear him but reason in divinity,"
+ "And all-admiring with an inward wish"
+ "You would desire the king were made a prelate:"
+ "Hear him debate of commonwealth affairs,"
+ "You would say it hath been all in all his study:"
+ "List his discourse of war, and you shall hear"
+ "A fearful battle render'd you in music:"
+ "Turn him to any cause of policy,"
+ "The Gordian knot of it he will unloose,"
+ "Familiar as his garter: that, when he speaks,"
+ "The air, a charter'd libertine, is still,"
+ "And the mute wonder lurketh in men's ears,"
+ "To steal his sweet and honey'd sentences;"
+ "So that the art and practic part of life"
+ "Must be the mistress to this theoric:"
+ "Which is a wonder how his grace should glean it,"
+ "Since his addiction was to courses vain,"
+ "His companies unletter'd, rude and shallow,"
+ "His hours fill'd up with riots, banquets, sports,"
+ "And never noted in him any study,"
+ "Any retirement, any sequestration"
+ "From open haunts and popularity.",

"I come no more to make you laugh: things now,"
+ "That bear a weighty and a serious brow,"
+ "Sad, high, and working, full of state and woe,"
+ "Such noble scenes as draw the eye to flow,"
+ "We now present. Those that can pity, here"
+ "May, if they think it well, let fall a tear;"
+ "The subject will deserve it. Such as give"
+ "Their money out of hope they may believe,"
+ "May here find truth too. Those that come to see"
+ "Only a show or two, and so agree"
+ "The play may pass, if they be still and willing,"
+ "I'll undertake may see away their shilling"
+ "Richly in two short hours. Only they"
+ "That come to hear a merry bawdy play,"
+ "A noise of targets, or to see a fellow"
+ "In a long motley coat guarded with yellow,"
+ "Will be deceived; for, gentle hearers, know,"
+ "To rank our chosen truth with such a show"
+ "As fool and fight is, beside forfeiting"
+ "Our own brains, and the opinion that we bring,"
+ "To make that only true we now intend,"
+ "Will leave us never an understanding friend."
+ "Therefore, for goodness' sake, and as you are known"
+ "The first and happiest hearers of the town,"
+ "Be sad, as we would make ye: think ye see"
+ "The very persons of our noble story"
+ "As they were living; think you see them great,"
+ "And follow'd with the general throng and sweat"
+ "Of thousand friends; then in a moment, see"
+ "How soon this mightiness meets misery:"
+ "And, if you can be merry then, I'll say"
+ "A man may weep upon his wedding-day.",

"First, heaven be the record to my speech!"
+ "In the devotion of a subject's love,"
+ "Tendering the precious safety of my prince,"
+ "And free from other misbegotten hate,"
+ "Come I appellant to this princely presence."
+ "Now, Thomas Mowbray, do I turn to thee,"
+ "And mark my greeting well; for what I speak"
+ "My body shall make good upon this earth,"
+ "Or my divine soul answer it in heaven."
+ "Thou art a traitor and a miscreant,"
+ "Too good to be so and too bad to live,"
+ "Since the more fair and crystal is the sky,"
+ "The uglier seem the clouds that in it fly."
+ "Once more, the more to aggravate the note,"
+ "With a foul traitor's name stuff I thy throat;"
+ "And wish, so please my sovereign, ere I move,"
+ "What my tongue speaks my right drawn sword may prove.",

"Now is the winter of our discontent"
+ "Made glorious summer by this sun of York;"
+ "And all the clouds that lour'd upon our house"
+ "In the deep bosom of the ocean buried."
+ "Now are our brows bound with victorious wreaths;"
+ "Our bruised arms hung up for monuments;"
+ "Our stern alarums changed to merry meetings,"
+ "Our dreadful marches to delightful measures."
+ "Grim-visaged war hath smooth'd his wrinkled front;"
+ "And now, instead of mounting barded steeds"
+ "To fright the souls of fearful adversaries,"
+ "He capers nimbly in a lady's chamber"
+ "To the lascivious pleasing of a lute."
+ "But I, that am not shaped for sportive tricks,"
+ "Nor made to court an amorous looking-glass;"
+ "I, that am rudely stamp'd, and want love's majesty"
+ "To strut before a wanton ambling nymph;"
+ "I, that am curtail'd of this fair proportion,"
+ "Cheated of feature by dissembling nature,"
+ "Deformed, unfinish'd, sent before my time"
+ "Into this breathing world, scarce half made up,"
+ "And that so lamely and unfashionable"
+ "That dogs bark at me as I halt by them;"
+ "Why, I, in this weak piping time of peace,"
+ "Have no delight to pass away the time,"
+ "Unless to spy my shadow in the sun"
+ "And descant on mine own deformity:"
+ "And therefore, since I cannot prove a lover,"
+ "To entertain these fair well-spoken days,"
+ "I am determined to prove a villain"
+ "And hate the idle pleasures of these days."
+ "Plots have I laid, inductions dangerous,"
+ "By drunken prophecies, libels and dreams,"
+ "To set my brother Clarence and the king"
+ "In deadly hate the one against the other:"
+ "And if King Edward be as true and just"
+ "As I am subtle, false and treacherous,"
+ "This day should Clarence closely be mew'd up,"
+ "About a prophecy, which says that 'G'"
+ "Of Edward's heirs the murderer shall be."
+ "Dive, thoughts, down to my soul: here"
+ "Clarence comes.",

"To bait fish withal: if it will feed nothing else,"
+ "it will feed my revenge. He hath disgraced me, and"
+ "hindered me half a million; laughed at my losses,"
+ "mocked at my gains, scorned my nation, thwarted my"
+ "bargains, cooled my friends, heated mine"
+ "enemies; and what's his reason? I am a Jew. Hath"
+ "not a Jew eyes? hath not a Jew hands, organs,"
+ "dimensions, senses, affections, passions? fed with"
+ "the same food, hurt with the same weapons, subject"
+ "to the same diseases, healed by the same means,"
+ "warmed and cooled by the same winter and summer, as"
+ "a Christian is? If you prick us, do we not bleed?"
+ "if you tickle us, do we not laugh? if you poison"
+ "us, do we not die? and if you wrong us, shall we not"
+ "revenge? If we are like you in the rest, we will"
+ "resemble you in that. If a Jew wrong a Christian,"
+ "what is his humility? Revenge. If a Christian"
+ "wrong a Jew, what should his sufferance be by"
+ "Christian example? Why, revenge. The villany you"
+ "teach me, I will execute, and it shall go hard but I"
+ "will better the instruction.",

"Virtue! a fig! 'tis in ourselves that we are thus"
+ "or thus. Our bodies are our gardens, to the which"
+ "our wills are gardeners: so that if we will plant"
+ "nettles, or sow lettuce, set hyssop and weed up"
+ "thyme, supply it with one gender of herbs, or"
+ "distract it with many, either to have it sterile"
+ "with idleness, or manured with industry, why, the"
+ "power and corrigible authority of this lies in our"
+ "wills. If the balance of our lives had not one"
+ "scale of reason to poise another of sensuality, the"
+ "blood and baseness of our natures would conduct us"
+ "to most preposterous conclusions: but we have"
+ "reason to cool our raging motions, our carnal"
+ "stings, our unbitted lusts, whereof I take this that"
+ "you call love to be a sect or scion.",

"Blow, winds, and crack your cheeks! rage! blow!"
+ "You cataracts and hurricanoes, spout"
+ "Till you have drench'd our steeples, drown'd the cocks!"
+ "You sulphurous and thought-executing fires,"
+ "Vaunt-couriers to oak-cleaving thunderbolts,"
+ "Singe my white head! And thou, all-shaking thunder,"
+ "Smite flat the thick rotundity o' the world!"
+ "Crack nature's moulds, an germens spill at once,"
+ "That make ingrateful man!" };

}

源码下载：http://download.csdn.net/detail/shark0017/7688143