我正在开发一个程序,允许用户通过使用ddmlib库在他的计算机屏幕上显示他的Android手机的当前屏幕(通过USB连接到计算机)。我需要知道手机是横向还是纵向模式。
有没有办法从计算机上运行的程序中检查此值?
答案 0 :(得分:1)
这是我的功能,但它很慢。现在我正在寻找更快的解决方案。
private int getLandscape() {
int result = 0;
try {
String[] commands = new String[] { "adb", "-s", actualSerial,
"shell", "dumpsys input | grep 'SurfaceOrientation'" };
Runtime rt = Runtime.getRuntime();
Process pr;
pr = rt.exec(commands);
BufferedReader input = new BufferedReader(new InputStreamReader(
pr.getInputStream()));
String line = "";
line = input.readLine();
if (line != null) {
String[] lines = line.split(":");
result = Integer.parseInt(lines[1].trim());
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return result;
}
最慢的部分是从BufferedReader读取。
答案 1 :(得分:0)
class AReceiver implements IShellOutputReceiver {
int x;
int y;
@Override
public void addOutput(byte[] arg0, int arg1, int arg2) {
String xS = new String(arg0);
xS = xS.substring(26).trim();
String[] screenRes = xS.split("x");
x = Integer.parseInt(screenRes[0]);
y = Integer.parseInt(screenRes[1]);
}
@Override
public void flush() {
}
@Override
public boolean isCancelled() {
return false;
}
}
AReceiver receiver = new AReceiver();
try {
dev.executeShellCommand("dumpsys window | grep \"mOverscanScreen\"", receiver);
res[0] = receiver.x;
res[1] = receiver.y;
} catch (TimeoutException | AdbCommandRejectedException | ShellCommandUnresponsiveException | IOException e) {
e.printStackTrace();
}
使用executeShellCommand
的Ffaster解决方案。在我的机器上,以前的解决方案需要大约400ms
才能得到答案,这个解决方案在大约50ms
中得到了解决方案:)祝你的应用程序好运!