在 libGdx 中捕获屏幕
Capture Screen in libGdx
我想在 libGdx 中捕获屏幕。我用这段代码来解决我的问题。在桌面上它工作。但是当我 运行 在我的 android 上时,我找不到图像捕获屏幕。我该如何解决?感谢阅读我的问题。
public class ScreenshotFactory {
private static int counter = 1;
public static void saveScreenshot() {
try {
FileHandle fh;
do {
if (Gdx.app.getType() == ApplicationType.Desktop)
Infor.linkScreenShot = "D://chupngoc" + counter + ".png";
else
Infor.linkScreenShot = Gdx.files.getExternalStoragePath()
+ counter + ".png";
Infor.nameImage = counter + ".png";
fh = new FileHandle(Infor.linkScreenShot);
counter++;
} while (fh.exists());
Pixmap pixmap = getScreenshot(0, 0, Gdx.graphics.getWidth(),
Gdx.graphics.getHeight(), true);
PixmapIO.writePNG(fh, pixmap);
pixmap.dispose();
} catch (Exception e) {
}
}
private static Pixmap getScreenshot(int x, int y, int w, int h,
boolean yDown) {
Gdx.gl.glPixelStorei(GL20.GL_PACK_ALIGNMENT, 1);
final Pixmap pixmap1 = new Pixmap(w, h, Format.RGBA8888);
ByteBuffer pixels1 = pixmap1.getPixels();
Gdx.gl.glReadPixels(x, y, w, h, GL20.GL_RGBA, GL20.GL_UNSIGNED_BYTE,
pixels1);
Pixmap pixmap = pixmap1;
if (yDown) {
// Flip the pixmap upside down
ByteBuffer pixels = pixmap.getPixels();
int numBytes = w * h * 4;
byte[] lines = new byte[numBytes];
int numBytesPerLine = w * 4;
for (int i = 0; i < h; i++) {
pixels.position((h - i - 1) * numBytesPerLine);
pixels.get(lines, i * numBytesPerLine, numBytesPerLine);
}
pixels.clear();
pixels.put(lines);
}
return pixmap;
}
}
你的问题出在这里...
fh = new FileHandle(Infor.linkScreenShot);
这种创建 FileHandle 的方法仅适用于桌面,不适用于 Android。
您应该使用 Gdx.files.external
创建一个文件...
fh = Gdx.files.external(Infor.linkScreenShot);
我想在 libGdx 中捕获屏幕。我用这段代码来解决我的问题。在桌面上它工作。但是当我 运行 在我的 android 上时,我找不到图像捕获屏幕。我该如何解决?感谢阅读我的问题。
public class ScreenshotFactory {
private static int counter = 1;
public static void saveScreenshot() {
try {
FileHandle fh;
do {
if (Gdx.app.getType() == ApplicationType.Desktop)
Infor.linkScreenShot = "D://chupngoc" + counter + ".png";
else
Infor.linkScreenShot = Gdx.files.getExternalStoragePath()
+ counter + ".png";
Infor.nameImage = counter + ".png";
fh = new FileHandle(Infor.linkScreenShot);
counter++;
} while (fh.exists());
Pixmap pixmap = getScreenshot(0, 0, Gdx.graphics.getWidth(),
Gdx.graphics.getHeight(), true);
PixmapIO.writePNG(fh, pixmap);
pixmap.dispose();
} catch (Exception e) {
}
}
private static Pixmap getScreenshot(int x, int y, int w, int h,
boolean yDown) {
Gdx.gl.glPixelStorei(GL20.GL_PACK_ALIGNMENT, 1);
final Pixmap pixmap1 = new Pixmap(w, h, Format.RGBA8888);
ByteBuffer pixels1 = pixmap1.getPixels();
Gdx.gl.glReadPixels(x, y, w, h, GL20.GL_RGBA, GL20.GL_UNSIGNED_BYTE,
pixels1);
Pixmap pixmap = pixmap1;
if (yDown) {
// Flip the pixmap upside down
ByteBuffer pixels = pixmap.getPixels();
int numBytes = w * h * 4;
byte[] lines = new byte[numBytes];
int numBytesPerLine = w * 4;
for (int i = 0; i < h; i++) {
pixels.position((h - i - 1) * numBytesPerLine);
pixels.get(lines, i * numBytesPerLine, numBytesPerLine);
}
pixels.clear();
pixels.put(lines);
}
return pixmap;
}
}
你的问题出在这里...
fh = new FileHandle(Infor.linkScreenShot);
这种创建 FileHandle 的方法仅适用于桌面,不适用于 Android。
您应该使用 Gdx.files.external
创建一个文件...
fh = Gdx.files.external(Infor.linkScreenShot);