前段时间客户需求，要加几个按钮，包括清理缓存，关于，设置，定位等。可是界面已经做好了，再重新布局界面，很麻烦。所以做了这么个小Button。在此分享，供大家学习。下面是几张截图，动画效果没工具保存，是依次展开的。文末附有源码下载链接。
首先上自定义布局文件：ComposerLayout.java
package com.example.button;
import android.annotation.SuppressLint;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.util.AttributeSet;
import android.view.View;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.RelativeLayout;
@SuppressLint("ViewConstructor")
public class ComposerLayout extends RelativeLayout {
public static byte RIGHTBOTTOM = 1, CENTERBOTTOM = 2, LEFTBOTTOM = 3,
LEFTCENTER = 4, LEFTTOP = 5, CENTERTOP = 6, RIGHTTOP = 7,
RIGHTCENTER = 8;
private boolean hasInit = false;
private boolean areButtonsShowing = false;
private Context mycontext;
private ImageView cross;
private RelativeLayout rlButton;
private Animations myani;
private LinearLayout[] llayouts;
private int duretime = 300;
public ComposerLayout(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
this.mycontext = context;
}
public ComposerLayout(Context context, AttributeSet attrs) {
super(context, attrs);
this.mycontext = context;
}
public ComposerLayout(Context context) {
super(context);
this.mycontext = context;
}
/**
* 初始化
*
* @param imgResId
* 子按钮图片drawable的id
* @param showhideButtonId
* 主按鈕drawable的id
* @param crossId
* 主按鈕上面十字片drawable的id
* @param pCode
* 位置代碼，例如“右上角”ALIGN_PARENT_BOTTOM|ALIGN_PARENT_RIGHT
* @param radius
*
* @param durationMillis
* 动画耗时
*/
public void init(int[] imgResId, int showhideButtonId, int crossId,
byte pCode, int radius, final int durationMillis) {
duretime = durationMillis;
int align1 = 12, align2 = 14;
if (pCode == RIGHTBOTTOM) { // 右下角
align1 = ALIGN_PARENT_RIGHT;
align2 = ALIGN_PARENT_BOTTOM;
} else if (pCode == CENTERBOTTOM) {// 中下
align1 = CENTER_HORIZONTAL;
align2 = ALIGN_PARENT_BOTTOM;
} else if (pCode == LEFTBOTTOM) { // 左下角
align1 = ALIGN_PARENT_LEFT;
align2 = ALIGN_PARENT_BOTTOM;
} else if (pCode == LEFTCENTER) { // 左中
align1 = ALIGN_PARENT_LEFT;
align2 = CENTER_VERTICAL;
} else if (pCode == LEFTTOP) { // 左上角
align1 = ALIGN_PARENT_LEFT;
align2 = ALIGN_PARENT_TOP;
} else if (pCode == CENTERTOP) { // 中上
align1 = CENTER_HORIZONTAL;
align2 = ALIGN_PARENT_TOP;
} else if (pCode == RIGHTTOP) { // 右上角
align1 = ALIGN_PARENT_RIGHT;
align2 = ALIGN_PARENT_TOP;
} else if (pCode == RIGHTCENTER) { // 右中
align1 = ALIGN_PARENT_RIGHT;
align2 = CENTER_VERTICAL;
}
// 处理半径
RelativeLayout.LayoutParams thislps = (LayoutParams) this
.getLayoutParams();
Bitmap mBottom = BitmapFactory.decodeResource(mycontext.getResources(),
imgResId[0]);
if (pCode == CENTERBOTTOM || pCode == CENTERTOP) {
if (thislps.width != -1
&& thislps.width != -2
&& thislps.width < (radius + mBottom.getWidth() + radius * 0.1) * 2) {
thislps.width = (int) ((radius * 1.1 + mBottom.getWidth()) * 2);
}
} else {
if (thislps.width != -1
&& thislps.width != -2
&& thislps.width < radius + mBottom.getWidth() + radius
* 0.1) {
thislps.width = (int) (radius * 1.1 + mBottom.getWidth());
}
}
if (pCode == LEFTCENTER || pCode == RIGHTCENTER) {
if (thislps.height != -1
&& thislps.height != -2
&& thislps.height < (radius + mBottom.getHeight() + radius * 0.1) * 2) {
thislps.width = (int) ((radius * 1.1 + mBottom.getHeight()) * 2);
}
} else {
if (thislps.height != -1
&& thislps.height != -2
&& thislps.height < radius + mBottom.getHeight() + radius
* 0.1) {
thislps.height = (int) (radius * 1.1 + mBottom.getHeight());
}
}
this.setLayoutParams(thislps);
RelativeLayout rl1 = new RelativeLayout(mycontext);// 包含若干子按鈕
rlButton = new RelativeLayout(mycontext); // 主按扭
llayouts = new LinearLayout[imgResId.length];
// N个子按鈕
for (int i = 0; i < imgResId.length; i++) {
ImageView img = new ImageView(mycontext);// 子按扭圖片
img.setImageResource(imgResId[i]);
LinearLayout.LayoutParams llps = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.WRAP_CONTENT);
img.setLayoutParams(llps);
llayouts[i] = new LinearLayout(mycontext);// 子按鈕
llayouts[i].setId(100 + i);// 随便设个id，方便onclick的时候识别。随便设，如果发现同其他控件沖突就自行改一下。
llayouts[i].addView(img);
RelativeLayout.LayoutParams rlps = new RelativeLayout.LayoutParams(
RelativeLayout.LayoutParams.WRAP_CONTENT,
RelativeLayout.LayoutParams.WRAP_CONTENT);
rlps.alignWithParent = true;
rlps.addRule(align1, RelativeLayout.TRUE);
rlps.addRule(align2, RelativeLayout.TRUE);
llayouts[i].setLayoutParams(rlps);
llayouts[i].setVisibility(View.INVISIBLE);// 此处不能为GONE
rl1.addView(llayouts[i]);
}
RelativeLayout.LayoutParams rlps1 = new RelativeLayout.LayoutParams(
RelativeLayout.LayoutParams.FILL_PARENT,
RelativeLayout.LayoutParams.FILL_PARENT);
rlps1.alignWithParent = true;
rlps1.addRule(align1, RelativeLayout.TRUE);
rlps1.addRule(align2, RelativeLayout.TRUE);
rl1.setLayoutParams(rlps1);
RelativeLayout.LayoutParams buttonlps = new RelativeLayout.LayoutParams(
RelativeLayout.LayoutParams.WRAP_CONTENT,
RelativeLayout.LayoutParams.WRAP_CONTENT);
buttonlps.alignWithParent = true;
buttonlps.addRule(align1, RelativeLayout.TRUE);
buttonlps.addRule(align2, RelativeLayout.TRUE);
rlButton.setLayoutParams(buttonlps);
rlButton.setBackgroundResource(showhideButtonId);
cross = new ImageView(mycontext);
cross.setImageResource(crossId);
RelativeLayout.LayoutParams crosslps = new RelativeLayout.LayoutParams(
RelativeLayout.LayoutParams.WRAP_CONTENT,
RelativeLayout.LayoutParams.WRAP_CONTENT);
crosslps.alignWithParent = true;
crosslps.addRule(CENTER_IN_PARENT, RelativeLayout.TRUE);
cross.setLayoutParams(crosslps);
rlButton.addView(cross);
myani = new Animations(rl1, pCode, radius);
rlButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if (areButtonsShowing) {
myani.startAnimationsOut(duretime);
cross.startAnimation(Animations.getRotateAnimation(-270,
0, duretime));
} else {
myani.startAnimationsIn(duretime);
cross.startAnimation(Animations.getRotateAnimation(0,
-270, duretime));
}
areButtonsShowing = !areButtonsShowing;
}
});
cross.startAnimation(Animations.getRotateAnimation(0, 360, 200));
this.addView(rl1);
this.addView(rlButton);
hasInit = true;
}
public void collapse() {
myani.startAnimationsOut(duretime);
cross.startAnimation(Animations.getRotateAnimation(-270, 0, duretime));
areButtonsShowing = false;
}
public void expand() {
myani.startAnimationsIn(duretime);
cross.startAnimation(Animations.getRotateAnimation(0, -270, duretime));
areButtonsShowing = true;
}
public boolean isInit() {
return hasInit;
}
public boolean isShow() {
return areButtonsShowing;
}
/**
* 设置各子按钮OnClick事件
*/
public void setButtonsOnClickListener(final OnClickListener l) {
if (llayouts != null) {
for (int i = 0; i < llayouts.length; i++) {
if (llayouts[i] != null)
llayouts[i].setOnClickListener(new OnClickListener() {
@Override
public void onClick(final View view) {
//此处添加其他事件比如按钮增大或者缩回菜单
collapse();
l.onClick(view);
}
});
}
}
}
}
这里自定义了一个BaseActivity，使用BaseActivity的好处不用我说了吧:
package com.example.button;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
public abstract class BaseActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setView();
initView();
setListener();
initData();
}
@Override
protected void onResume() {
super.onResume();
}
@Override
protected void onPause() {
super.onPause();
}
/**
* 设置布局文件
*/
public abstract void setView();
/**
* 初始化布局文件中的控件
*/
public abstract void initView();
/**
* 设置控件的监听
*/
public abstract void setListener();
private void initData() {
String appID = "wx88818f8c48a95eb4";
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
}
}
动画设置类，Animations，这里用了一个开源动画库nineoldandroids.jar。下载文末原代码中有
package com.example.button;
import static com.nineoldandroids.view.ViewPropertyAnimator.animate;
import java.util.ArrayList;
import java.util.List;
import android.view.View;
import android.view.ViewGroup;
import android.view.animation.Animation;
import android.view.animation.RotateAnimation;
import android.widget.LinearLayout;
import com.nineoldandroids.animation.Animator;
import com.nineoldandroids.animation.Animator.AnimatorListener;
import com.nineoldandroids.view.ViewPropertyAnimator;
public class Animations {
public final int R; // 半径
public static byte RIGHTBOTTOM = 1, CENTERBOTTOM = 2, LEFTBOTTOM = 3,
LEFTCENTER = 4, LEFTTOP = 5, CENTERTOP = 6, RIGHTTOP = 7,
RIGHTCENTER = 8;
private int pc; // 位置代号
private ViewGroup clayout; // 父layout
private final int amount; // 有幾多個按鈕
private double fullangle = 180.0;// 在幾大嘅角度內排佈
private byte xOri = 1, yOri = 1; // x、y值嘅方向，即系向上還是向下
private boolean isOpen = false;// 记录是已经打开还是关闭
private List<ViewPropertyAnimator> viewAnimators = new ArrayList<ViewPropertyAnimator>();
/**
* 構造函數
*
* @param comlayout
* 包裹彈出按鈕嘅layout
* @param poscode
* 位置代號，分別對應RIGHTBOTTOM、CENTERBOTTOM、LEFTBOTTOM、LEFTCENTER、
* LEFTTOP、CENTERTOP、RIGHTTOP、RIGHTCENTER
* @param radius
* 半徑
*/
public Animations(ViewGroup comlayout, int poscode, int radius) {
this.pc = poscode;
this.clayout = comlayout;
this.amount = clayout.getChildCount();
this.R = radius;
// 初始化动画，每个view对应一个animator
for (int i = 0; i < amount; i++) {
View childAt = clayout.getChildAt(i);
ViewPropertyAnimator anim = animate(childAt);
viewAnimators.add(anim);
}
if (poscode == RIGHTBOTTOM) { // 右下角
fullangle = 90;
xOri = -1;
yOri = -1;
} else if (poscode == CENTERBOTTOM) {// 中下
fullangle = 180;
xOri = -1;
yOri = -1;
} else if (poscode == LEFTBOTTOM) { // 左下角
fullangle = 90;
xOri = 1;
yOri = -1;
} else if (poscode == LEFTCENTER) { // 左中
fullangle = 180;
xOri = 1;
yOri = -1;
} else if (poscode == LEFTTOP) { // 左上角
fullangle = 90;
xOri = 1;
yOri = 1;
} else if (poscode == CENTERTOP) { // 中上
fullangle = 180;
xOri = -1;
yOri = 1;
} else if (poscode == RIGHTTOP) { // 右上角
fullangle = 90;
xOri = -1;
yOri = 1;
} else if (poscode == RIGHTCENTER) { // 右中
fullangle = 180;
xOri = -1;
yOri = -1;
}
}
private class AnimListener implements AnimatorListener {
private View target;
public AnimListener(View _target) {
target = _target;
}
@Override
public void onAnimationStart(Animator animation) {
}
@Override
public void onAnimationEnd(Animator animation) {
if (!isOpen) {
target.setVisibility(View.INVISIBLE);
}
}
@Override
public void onAnimationCancel(Animator animation) {
// TODO Auto-generated method stub
}
@Override
public void onAnimationRepeat(Animator animation) {
// TODO Auto-generated method stub
}
}
<pre name="code" class="java"> /**
* 开
*/public void startAnimationsIn(int durationMillis) {isOpen = true;for (int i = 0; i < clayout.getChildCount(); i++) {final LinearLayout inoutimagebutton = (LinearLayout) clayout.getChildAt(i);double offangle = fullangle / (amount - 1);final double
deltaY, deltaX;if (pc == LEFTCENTER || pc == RIGHTCENTER) {deltaX = Math.sin(offangle * i * Math.PI / 180) * R;deltaY = Math.cos(offangle * i * Math.PI / 180) * R;} else {deltaY = Math.sin(offangle * i * Math.PI / 180) * R;deltaX = Math.cos(offangle * i *
Math.PI / 180) * R;}ViewPropertyAnimator viewPropertyAnimator = viewAnimators.get(i);viewPropertyAnimator.setListener(null);inoutimagebutton.setVisibility(View.VISIBLE);viewPropertyAnimator.x((float) (inoutimagebutton.getLeft() + xOri * deltaX)).y((float)
(inoutimagebutton.getTop() + yOri * deltaY));}}/** * 收 */public void startAnimationsOut(int durationMillis) {isOpen = false;for (int i = 0; i < clayout.getChildCount(); i++) {final LinearLayout inoutimagebutton = (LinearLayout) clayout.getChildAt(i);ViewPropertyAnimator
viewPropertyAnimator = viewAnimators.get(i);viewPropertyAnimator.setListener(null);viewPropertyAnimator.x((float) inoutimagebutton.getLeft()).y((float) inoutimagebutton.getTop());viewPropertyAnimator.setListener(new AnimListener(inoutimagebutton));}}public
int getPosCode() {return this.pc;}/** * 自转函数 * * @param fromDegrees * 从多少度 * @param toDegrees * 到多少度 * @param durationMillis * m */public static Animation getRotateAnimation(float fromDegrees,float toDegrees, int durationMillis) {RotateAnimation rotate = new
RotateAnimation(fromDegrees, toDegrees,Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF,0.5f);rotate.setDuration(durationMillis);rotate.setFillAfter(true);return rotate;}}
主Activity：TestActivity
package com.example.button;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.RelativeLayout;
import android.widget.Toast;
public class TestActivity extends BaseActivity {
private ComposerLayout clayout;
@Override
public void setView() {
setContentView(R.layout.activity_main);
}
@Override
public void initView() {
// 引用控件
clayout = (ComposerLayout) findViewById(R.id.test);
clayout.init(new int[] { R.drawable.composer_camera,
R.drawable.composer_music, R.drawable.composer_place,
R.drawable.composer_sleep, R.drawable.composer_thought,
R.drawable.composer_with }, R.drawable.composer_button,
R.drawable.composer_icn_plus, ComposerLayout.RIGHTCENTER, 180,
300);
}
@Override
public void setListener() {
// 点击事件监听，100+0对应composer_camera，100+1对应composer_music……如此类推你有机个按钮就加几个按钮都行。
OnClickListener clickit = new OnClickListener() {
@Override
public void onClick(View v) {
if (v.getId() == 100 + 0) {
Toast.makeText(TestActivity.this, "测试A", 0).show();
} else if (v.getId() == 100 + 1) {
Toast.makeText(TestActivity.this, "测试B...", 0).show();
} else if (v.getId() == 100 + 2) {
Toast.makeText(TestActivity.this, "测试C...", 0).show();
} else if (v.getId() == 100 + 3) {
Toast.makeText(TestActivity.this, "测试D...", 0).show();
} else if (v.getId() == 100 + 4) {
Toast.makeText(TestActivity.this, "测试E...", 0).show();
} else if (v.getId() == 100 + 5) {
Toast.makeText(TestActivity.this, "测试F..", 0).show();
}
}
};
clayout.setButtonsOnClickListener(clickit);
RelativeLayout rl = (RelativeLayout) findViewById(R.id.rlparent);
rl.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Toast.makeText(TestActivity.this, "父控件可以点击的哦!!!", 0).show();
System.out.println("父控件可以点击。");
}
});
}
}
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/rlparent"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#ABCDEF" >
<com.example.button.ComposerLayout
android:id="@+id/test"
android:layout_width="20dp"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerVertical="true" >
</com.example.button.ComposerLayout>
</RelativeLayout>
原文：http://blog.csdn.net/u013475983/article/details/51858685