安卓桌面滚动字体软件下载 安卓系统桌面循环滚动桌面设置的
- 作者: 哈根达威尔-史密斯
- 来源: 51数据库
- 2020-04-21
1、手机设置”的“辅助功能”中有选择是否“桌面循环”。
2、在原生的android源码上添加这一功能。
思路：先把界面做出来，再将是否选择的值存到系统的(adb shell进入)data/data/com.android.providers.settings/databases/settings.db数据库中的system表中，
然后在Launch2的源码中取得数据库中是否选择循环桌面来执行相关代码。
先做UI：
在settings源码中的accessibility_settings.xml文件中添加一个checkbox：
java代码
android:key="launch_repeat"
android:title="@string/launch_repeat_title"
android:persistent="false"/>
在settings源码的res中添加相关的代码：
在values/string.xml中添加(英文显示)：
Launch Repeat
在values-zh-rCN/string.xml中添加(中文显示)：
"循环桌面"
在settings源码的AccessibilitySettings.java中的OnCreate中添加：
java代码
/*****************************************/
mLaunchRepeat=(CheckBoxPreference) findPreference(
LAUNCH_REPEAT);
int LaunchRepeat=Settings.System.getInt(this.getContentResolver(),
"launch_repeat",0);//取出是否被选择
if(LaunchRepeat==1)//如果被选择，那么下次打开setting时就勾选
mLaunchRepeat.setChecked(true);
else
mLaunchRepeat.setChecked(false);//如果没被选择，那么下次打开setting时就不勾选
/*****************************************/
当然还要定义几个量：
private final String LAUNCH_REPEAT =
"launch_repeat";
private CheckBoxPreference mLaunchRepeat;
在onPreferenceTreeClick函数中添加：
java代码
//add by xxnan
if(LAUNCH_REPEAT.equals(key))
{
Settings.System.putInt(getContentResolver(),
"launch_repeat",
((CheckBoxPreference) preference).isChecked()?
1:0);//将是否选择存到系统的system表中
}
//add by xxnan
如果做好了之后当点击选择“桌面循环时”可以到(adb shell进入)data/data/com.android.providers.settings/databases下的settings.db数据库(sqlite3 settings.db)的system
表中看到33|launch_repeat|1(select * from system;)。
到这里就完成了将数据存到系统system表中以及UI，接下来就是在Launch2源码中去取这个值(是否循环)。
到Launcher2源码中去找到Workspace.java文件，在里面有相应的修改：
在onTouchEvent中，之前有修改循环，如下：
java代码
case MotionEvent.ACTION_UP:
if (mTouchState == TOUCH_STATE_SCROLLING) {
final VelocityTracker velocityTracker = mVelocityTracker;
velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity);
final int velocityX = (int)
velocityTracker.getXVelocity(mActivePointerId);
final int screenWidth = getWidth();
final int whichScreen = (mScrollX + (screenWidth / 2)) / screenWidth;
final float scrolledPos = (float) mScrollX / screenWidth;
Log.i("velocityX","velocityX="+velocityX+"whichScreen="+whichScreen);
/***********************************************/
//modifided by xxnan
if (velocityX > SNAP_VELOCITY) {
// Fling hard enough to move left.
// Don't fling across more than one screen at a time.
Log.i("numscreen","numscreen="+mCurrentScreen);
/* final int bound = scrolledPos < whichScreen ?
( (mCurrentScreen+ getChildCount()) - 1 )% getChildCount():
mCurrentScreen;*/
final int bound =( (mCurrentScreen+ getChildCount()) - 1 )% getChildCount()
;
Log.i("numscreen","bound="+bound);
snapToScreen( bound, velocityX, true);
} else if (velocityX < -SNAP_VELOCITY ) {
// Fling hard enough to move right
// Don't fling across more than one screen at a time.
/*final int bound = scrolledPos > whichScreen ?
( mCurrentScreen + 1 )% getChildCount(): mCurrentScreen;*/
final int bound = ( mCurrentScreen + 1 )% getChildCount() ;
snapToScreen(bound, velocityX, true);
} else {
snapToScreen(whichScreen, 0, true);
}
/***********************************************/
//下面是原生代码
/*if (velocityX > SNAP_VELOCITY && mCurrentScreen > 0) {
// Fling hard enough to move left.
// Don't fling across more than one screen at a time.
final int bound = scrolledPos < whichScreen ?
mCurrentScreen - 1 : mCurrentScreen;
snapToScreen(Math.min(whichScreen, bound), velocityX, true);
} else if (velocityX < -SNAP_VELOCITY && mCurrentScreen <
getChildCount() - 1) {
// Fling hard enough to move right
// Don't fling across more than one screen at a time.
final int bound = scrolledPos > whichScreen ?
mCurrentScreen + 1 : mCurrentScreen;
snapToScreen(Math.max(whichScreen, bound), velocityX, true);
} else {
snapToScreen(whichScreen, 0, true);
}*/
}
mTouchState = TOUCH_STATE_REST;
mActivePointerId = INVALID_POINTER;
releaseVelocityTracker();
break;
那么就要在修改的地方加一个判断，如果system中取得的值是1，就可以循环，如果是0，就不能。
代码修改如下：
java代码
case MotionEvent.ACTION_UP:
if (mTouchState == TOUCH_STATE_SCROLLING) {
final VelocityTracker velocityTracker = mVelocityTracker;
velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity);
final int velocityX = (int)
velocityTracker.getXVelocity(mActivePointerId);
final int screenWidth = getWidth();
final int whichScreen = (mScrollX + (screenWidth / 2)) / screenWidth;
final float scrolledPos = (float) mScrollX / screenWidth;
Log.i("velocityX","velocityX="+velocityX+"whichScreen="+whichScreen);
/***********************************************/
//modifided by xxnan 2013-1-9
launch_repeat=Settings.System.getInt(mContext.getContentResolver(),
"launch_repeat",0);//取出system表中“launch_repeat”的值
Log.i(" launch_repeat"," launch_repeat="+ launch_repeat);
if(launch_repeat==1)//如果是1，就循环，也就是之前已经改好的
{
if (velocityX > SNAP_VELOCITY) {
// Fling hard enough to move left.
// Don't fling across more than one screen at a time.
Log.i("numscreen","numscreen="+mCurrentScreen);
/* final int bound = scrolledPos < whichScreen ?
( (mCurrentScreen+ getChildCount()) - 1 )% getChildCount():
mCurrentScreen;*/
final int bound =( (mCurrentScreen+ getChildCount()) - 1 )% getChildCount()
;
Log.i("numscreen","bound="+bound);
snapToScreen( bound, velocityX, true);
} else if (velocityX < -SNAP_VELOCITY ) {
// Fling hard enough to move right
// Don't fling across more than one screen at a time.
/*final int bound = scrolledPos > whichScreen ?
( mCurrentScreen + 1 )% getChildCount(): mCurrentScreen;*/
final int bound = ( mCurrentScreen + 1 )% getChildCount() ;
snapToScreen(bound, velocityX, true);
} else {
snapToScreen(whichScreen, 0, true);
}
}
else//如果是0，那么就是原生代码，不循环
{
if (velocityX > SNAP_VELOCITY && mCurrentScreen > 0) {
// Fling hard enough to move left.
// Don't fling across more than one screen at a time.
final int bound = scrolledPos < whichScreen ?
mCurrentScreen - 1 : mCurrentScreen;
snapToScreen(Math.min(whichScreen, bound), velocityX, true);
} else if (velocityX < -SNAP_VELOCITY && mCurrentScreen <
getChildCount() - 1) {
// Fling hard enough to move right
// Don't fling across more than one screen at a time.
final int bound = scrolledPos > whichScreen ?
mCurrentScreen + 1 : mCurrentScreen;
snapToScreen(Math.max(whichScreen, bound), velocityX, true);
} else {
snapToScreen(whichScreen, 0, true);
}
}
/***********************************************/
//下面是原生代码
/*if (velocityX > SNAP_VELOCITY && mCurrentScreen > 0) {
// Fling hard enough to move left.
// Don't fling across more than one screen at a time.
final int bound = scrolledPos < whichScreen ?
mCurrentScreen - 1 : mCurrentScreen;
snapToScreen(Math.min(whichScreen, bound), velocityX, true);
} else if (velocityX < -SNAP_VELOCITY && mCurrentScreen <
getChildCount() - 1) {
// Fling hard enough to move right
// Don't fling across more than one screen at a time.
final int bound = scrolledPos > whichScreen ?
mCurrentScreen + 1 : mCurrentScreen;
snapToScreen(Math.max(whichScreen, bound), velocityX, true);
} else {
snapToScreen(whichScreen, 0, true);
}*/
}
mTouchState = TOUCH_STATE_REST;
mActivePointerId = INVALID_POINTER;
releaseVelocityTracker();
break;
当然这里面也要定义几个量，以及导入几个包：
导入包：
//add by xxnan
import android.content.ContentResolver;//从system表中取数据
import android.provider.Settings;
定义变量：
private int launch_repeat;//取得是否循环的值
到这里就全部修改好了，还有就是编译一下源码中的package/apps的Launch2和Settings的源码，将生成的out/target/。。。/system/app下的
Launch2.apk和Settings.apk替换手机里system/app的这两个apk就可以了。
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怕你找不到 给你下载好了哦
这是小米原生的便签软件，很精致的。
用别的话，没这个好看。
下面是软件
http://pan.baidu.com/share/link?shareid=284003&uk=3473306320
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这是个软件 搜 LED ，就可以了。好评。
求好评
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Holo启动器增强版[安智汉化]
主要功能：
- 完全的ICS风格：ICS图标、文件夹、布局、应用抽屉、标签等
- 自定义主屏幕页数/网格：最多支持9页主屏幕和10x10的网格
- 自定义应用抽屉竖屏/横屏网格：分别为竖屏和横屏设置不同的抽屉网格
- 可滚动的托盘：最多支持3页托盘，每页最多支持7个图标，并支持横向分页和纵向连续样式
- 循环滚动：无限滚动您的桌面、应用抽屉、托盘
- 主屏幕手势：在主屏幕上向上/向下滑动快速启动应用
- 自定义快捷方式/文件夹图标：长按编辑快捷方式/文件夹图标和标签，支持ADW和LauncherPro图标包
- 屏幕预览：双指捏操作显示屏幕预览
- 备份和恢复：备份和恢复您的设置和快捷方式
- 其他自定义选项：常驻内存、HOME键操作、隐藏抽屉中的应用、隐藏图标文本等
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