android 代码截屏

import java.text.SimpleDateFormat;
import android.os.SystemProperties;

import java.util.Date;

private boolean ifCreateScreenshot = true;

    private void createScreenshot() {
        SimpleDateFormat sdf = new SimpleDateFormat("MMdd-HHmmss");
        String serial = SystemProperties.get("ro.serialno", "1234567890ABCDEF");
        String screenshotFileName = "Screenshot_" + serial + "_" + sdf.format(new Date(System.currentTimeMillis())) + ".png";
        String screenshotFilePath = Environment.getExternalStorageDirectory().toString() + "/123123/" + screenshotFileName;
        try {
            Runtime.getRuntime().exec("screencap -p " + screenshotFilePath);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

调用：

String screenshotflag = getIntent().getStringExtra("Screenshot");
                if (ifCreateScreenshot && screenshotflag != null && screenshotflag.equals("1")) {
                    createScreenshot();
                    ifCreateScreenshot = false;
                }