系统中所有对话框，默认布局方式都是居中显示

if(SystemProperties.get("EXTERNAL_STORAGE_VIRTUAL_STATE").trim().equals("virtual")&&
SystemProperties.get("EXTERNAL_SD_STATE").trim().equals("insert")){

系统中所有对话框，默认布局方式都是居中显示，如果想自定义显示位置可以考虑如下方式：
……
Window mWindow = dialog.getWindow();
WindowManager.LayoutParams lp = mWindow.getAttributes();
lp.x= xxx;
lp.y= xxx;

缺省居中lp.x=0,lp.y=0

新坐标 x小于0左移，大于0右移；y小于0上移，大于0下移


@Override
protected void onDestroy() {
super.onDestroy();
android.os.Process.killProcess(android.os.Process.myPid());
}



public static String wrap(String str, int wrapLength, String newLineStr, boolean wrapLongWords) {
if (str == null) {
return null;
}
if (newLineStr == null) {
newLineStr = System.getProperty("line.separator");
}
if (wrapLength < 1) {
wrapLength = 1;
}
int inputLineLength = str.length();
int offset = 0;
StringBuffer wrappedLine = new StringBuffer(inputLineLength + 32);

while ((inputLineLength - offset) > wrapLength) {
if (str.charAt(offset) == ' ') {
offset++;
continue;
}
int spaceToWrapAt = str.lastIndexOf(' ', wrapLength + offset);

if (spaceToWrapAt >= offset) {
// normal case
wrappedLine.append(str.substring(offset, spaceToWrapAt));
wrappedLine.append(newLineStr);
offset = spaceToWrapAt + 1;

} else {
// really long word or URL
if (wrapLongWords) {
// wrap really long word one line at a time
wrappedLine.append(str.substring(offset, wrapLength + offset));
wrappedLine.append(newLineStr);
offset += wrapLength;
} else {
// do not wrap really long word, just extend beyond limit
spaceToWrapAt = str.indexOf(' ', wrapLength + offset);
if (spaceToWrapAt >= 0) {
wrappedLine.append(str.substring(offset, spaceToWrapAt));
wrappedLine.append(newLineStr);
offset = spaceToWrapAt + 1;
} else {
wrappedLine.append(str.substring(offset));
offset = inputLineLength;
}
}
}
}

// Whatever is left in line is short enough to just pass through
wrappedLine.append(str.substring(offset));

return wrappedLine.toString();
}