Android 仿ios屏幕右边的圆圈-白红宇

public class TopFloatService extends Service implements OnClickListener,OnKeyListener{

WindowManager wm = null;

WindowManager.LayoutParams ballWmParams = null;

private View ballView;

private View menuView;

private float mTouchStartX;

private float mTouchStartY;

private float x;

private float y;

private RelativeLayout menuLayout;

private Button floatImage;

private PopupWindow pop;

private RelativeLayout menuTop;

private boolean ismoving = false;

private TextView btn_home_screen;

private TextView btn_apps;

private TextView btn_lock_screen;

private TextView btn_setting;

private TextView btn_favor;

/**

* 屏幕锁屏

private DevicePolicyManager policyManager;

private ComponentName componentName;

@Override

public void onCreate() {

super.onCreate();

//获取设备管理服务

policyManager=(DevicePolicyManager)getSystemService(Context.DEVICE_POLICY_SERVICE);

componentName=new ComponentName(getApplicationContext(),LockReceiver.class);

//加载辅助球布局

ballView = LayoutInflater.from(this).inflate(R.layout.floatball, null);

floatImage = (Button)ballView.findViewById(R.id.float_image);

setUpFloatMenuView();

createView();

}

/**

* 窗口菜单初始化

private void setUpFloatMenuView(){

menuView = LayoutInflater.from(this).inflate(R.layout.floatmenu, null);

menuLayout = (RelativeLayout)menuView.findViewById(R.id.menu);

menuTop = (RelativeLayout)menuView.findViewById(R.id.lay_main);

menuLayout.setOnClickListener(this);

menuLayout.setOnKeyListener(this);

menuTop.setOnClickListener(this);

//初始化

btn_apps=(TextView)menuView.findViewById(R.id.btn_apps);

btn_favor=(TextView)menuView.findViewById(R.id.btn_favor);

btn_home_screen=(TextView)menuView.findViewById(R.id.btn_home_screen);

btn_lock_screen=(TextView)menuView.findViewById(R.id.btn_lock_screen);

btn_setting=(TextView)menuView.findViewById(R.id.btn_setting);

//添加点击事件

btn_apps.setOnClickListener(this);

btn_favor.setOnClickListener(this);

btn_home_screen.setOnClickListener(this);

btn_lock_screen.setOnClickListener(this);

btn_setting.setOnClickListener(this);

}

/**

* 通过MyApplication创建view，并初始化显示参数

private void createView() {

wm = (WindowManager) getApplicationContext().getSystemService("window");

ballWmParams = ((MyApplication) getApplication()).getMywmParams();

ballWmParams.type = WindowManager.LayoutParams.TYPE_PHONE;

ballWmParams.flags |= WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE;

ballWmParams.gravity = Gravity.LEFT | Gravity.TOP;

ballWmParams.x = 0;

ballWmParams.y = 0;

ballWmParams.width = WindowManager.LayoutParams.WRAP_CONTENT;

ballWmParams.height = WindowManager.LayoutParams.WRAP_CONTENT;

ballWmParams.format = PixelFormat.RGBA_8888;

//添加显示层

wm.addView(ballView, ballWmParams);

//注册触碰事件监听器

floatImage.setOnTouchListener(new OnTouchListener() {

public boolean onTouch(View v, MotionEvent event) {

x = event.getRawX();

y = event.getRawY();

switch (event.getAction()) {

case MotionEvent.ACTION_DOWN:

ismoving = false;

mTouchStartX = (int)event.getX();

mTouchStartY = (int)event.getY();

break;

case MotionEvent.ACTION_MOVE:

ismoving = true;

updateViewPosition();

break;

case MotionEvent.ACTION_UP:

mTouchStartX = mTouchStartY = 0;

break;

}

//如果拖动则返回false，否则返回true

if(ismoving == false){

return false;

}else{

return true;

}

});

//注册点击事件监听器

floatImage.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

DisplayMetrics dm = getResources().getDisplayMetrics();

pop = new PopupWindow(menuView, dm.widthPixels, dm.heightPixels);

pop.showAtLocation(ballView, Gravity.CENTER, 0, 0);

pop.update();

}

});

}

/**

* 更新view的显示位置

private void updateViewPosition() {

ballWmParams.x = (int) (x - mTouchStartX);

ballWmParams.y = (int) (y - mTouchStartY);

wm.updateViewLayout(ballView, ballWmParams);

}

@Override

public IBinder onBind(Intent intent) {

return null;

}

@Override

public void onClick(View v) {

switch (v.getId()) {

case R.id.btn_apps:

Intent intent= new Intent("android.intent.action.DIAL");

intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK |Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);

intent.setClassName("com.android.contacts","com.android.contacts.DialtactsActivity");

startActivity(intent);

break;

case R.id.btn_favor:

break;

case R.id.btn_home_screen:

Intent mHomeIntent=new Intent(Intent.ACTION_MAIN);

mHomeIntent.addCategory(Intent.CATEGORY_HOME);

mHomeIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK |Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);

startActivity(mHomeIntent);

break;

case R.id.btn_lock_screen:

lock();

android.os.Process.killProcess(android.os.Process.myPid());

break;

case R.id.btn_setting:

Intent mSetting=new Intent(Intent.ACTION_MAIN);

mSetting.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK |Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);

startActivity(mSetting);

// cm=new ComponentName("com.android.settings","com.android.settings.Settings");

Intent mSetting=new Intent(Settings.ACTION_APN_SETTINGS);

mSetting.setComponent(cm);

startActivity(mSetting);

break;

default:

if(pop!=null && pop.isShowing()){

pop.dismiss();

}

break;

}

/**

* 锁屏

public void lock(){

boolean active=policyManager.isAdminActive(componentName);

if(!active){ //若无权限

activeManager(); //去获得权限

policyManager.lockNow(); //并锁屏

}

if(active){

policyManager.lockNow(); //直接锁屏

}

/**

* 获得权限

public void activeManager(){

//使用隐式意图调用系统方法来激活指定的设备管理器

Intent intent=new Intent(DevicePolicyManager.ACTION_ADD_DEVICE_ADMIN);

//权限列表

intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK |Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);

intent.putExtra(DevicePolicyManager.EXTRA_DEVICE_ADMIN, componentName);

intent.putExtra(DevicePolicyManager.EXTRA_ADD_EXPLANATION, "一键锁屏");

startActivity(intent);

}

@Override

public boolean onKey(View v, int keyCode, KeyEvent event) {

Toast.makeText(getApplicationContext(), "keyCode:"+keyCode, 1000).show();

switch (keyCode) {

case KeyEvent.KEYCODE_HOME:

pop.dismiss();

break;

case KeyEvent.KEYCODE_BACK:

pop.dismiss();

default:

break;

}

return true;

}

页面代码：

<RelativeLayout

android:id="@+id/lay_main"

android:layout_width="fill_parent"

android:layout_height="fill_parent"

android:orientation="vertical"

android:padding="4.0px"

android:visibility="visible" >

<TextView

android:id="@+id/btn_apps"

style="@style/Icon"

android:layout_centerInParent="true"

android:drawableTop="@drawable/selector_ic_apps"

android:text="@string/apps" />

<TextView

android:id="@+id/btn_home_screen"

style="@style/Icon"

android:layout_alignParentBottom="true"

android:layout_centerHorizontal="true"

android:drawableTop="@drawable/selector_ic_home"

android:text="@string/home_screen" />

<TextView

android:id="@+id/btn_setting"

style="@style/Icon"

android:layout_alignParentRight="true"

android:layout_centerVertical="true"

android:drawableTop="@drawable/selector_ic_phone"

android:text="@string/setting" />

<TextView

android:id="@+id/btn_lock_screen"

style="@style/Icon"

android:layout_centerHorizontal="true"

android:drawableTop="@drawable/selector_ic_power_down"

android:text="@string/lock_screen" />

<TextView

android:id="@+id/btn_favor"

style="@style/Icon"

android:layout_alignParentLeft="true"

android:layout_centerVertical="true"

android:drawableTop="@drawable/selector_ic_star"

android:text="@string/favor" />

</RelativeLayout>

源码下载：