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android - android-gpuimage 中 View 的旋转

转载 作者:行者123 更新时间:2023-11-30 01:56:48 26 4
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我正在尝试旋转来自 android-gpuImage 的图像,但旋转不起作用。这是代码

protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);

setContentView(R.layout.activity_document_edit);

mGPUImageView = (GPUImageView) findViewById(R.id.gpuimage);

Intent photoPickerIntent = new Intent(Intent.ACTION_PICK);
photoPickerIntent.setType("image/*");
startActivityForResult(photoPickerIntent, REQUEST_PICK_IMAGE);

seekBar = (SeekBar) findViewById(R.id.seekBar);
seekBar.setOnSeekBarChangeListener(this);
findViewById(R.id.btn_rotate).setOnClickListener(this);
findViewById(R.id.button_save).setOnClickListener(this);

GPUImageFilter filter = new GPUImageBrightnessFilter();
switchFilterTo(filter);
mGPUImageView.requestRender();

}

旋转按钮的OnClick方法:

@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.btn_rotate:
rotationAngle -= 90f;
if (rotationAngle <= -360f)
rotationAngle = 0f;
mGPUImageView.setRotationX(rotationAngle);
mGPUImageView.requestRender();
break;
}
}

OnActivityResult 我已经加载了用户从图像 piker Intent 中选择的图像。单击按钮后,我尝试旋转 mGPUImageView 但 View 显示为空白。

下面是我尝试旋转 mGPUImageView

时的图像

View with image loaded

当我旋转时:

enter image description here

我怎样才能实现旋转。请帮忙。

最佳答案

int 标志 = 0;

public void setRotationRight() {
if (flag == 0) {
gpuImageView.setRotation(Rotation.ROTATION_90);
flag = 1;
AppConfig.log(TAG, "90, flag: " + flag);
} else if (flag == 1) {
gpuImageView.setRotation(Rotation.ROTATION_180);
flag = 2;
AppConfig.log(TAG, "180, flag: " + flag);
} else if (flag == 2) {
gpuImageView.setRotation(Rotation.ROTATION_270);
flag = 3;
AppConfig.log(TAG, "270, flag: " + flag);
} else if (flag == 3) {
gpuImageView.setRotation(Rotation.NORMAL);
flag = 0;
AppConfig.log(TAG, "normal, flag: " + flag);
}
}

public void setRotationLeft() {
if (flag == 0) {
gpuImageView.setRotation(Rotation.ROTATION_270);
flag = 1;
AppConfig.log(TAG, "270, flag: " + flag);
} else if (flag == 1) {
gpuImageView.setRotation(Rotation.ROTATION_180);
flag = 2;
AppConfig.log(TAG, "normal, flag: " + flag);
} else if (flag == 2) {
gpuImageView.setRotation(Rotation.ROTATION_90);
flag = 3;
AppConfig.log(TAG, "180, flag: " + flag);
} else if (flag == 3) {
gpuImageView.setRotation(Rotation.NORMAL);
flag = 0;
AppConfig.log(TAG, "90, flag: " + flag);
}
}

关于android - android-gpuimage 中 View 的旋转,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/32092870/

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