

代码分为两个步骤
1.打开相册选择图片
Intent intent = new Intent();
intent.setType("image/*");
intent.setAction("android.intent.action.OPEN_DOCUMENT");
startActivityForResult(intent, KITKAT_ABOVE);
2.截取图片
Intent intent = new Intent("com.android.camera.action.CROP");
intent.setDataAndType(uri, "image/*");
intent.putExtra("crop", "true");
intent.putExtra("aspectX", 1);
intent.putExtra("aspectY", 1);
intent.putExtra("outputX", width);
intent.putExtra("outputY", height);
intent.putExtra("return-data", true);
intent.putExtra("scale", true);
startActivityForResult(intent, REQUEST_PICK_IMG);
怎么回事啊?
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这个问题找到了,是图片本身很小的缘故。