有几种方法可以将位图传递给第二个 Activity
你可以通过Bundle
表格Intent
。
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == CAM_REQUEST) {
if (resultCode == RESULT_OK) {
Bundle extras = data.getExtras()
Intent i = new Intent(this, PostActivity.class);
i.putExtra("extras", extras);
startActivity(i);
}
}
}
而在PostActivity
你可以打电话
Bundle extras = getIntent().getBundleExtra("extras")
Bitmap thumbnail = (Bitmap) extras.get("data");
或者,如果您只想传递图像,则必须将位图转换为字节数组
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == CAM_REQUEST) {
if (resultCode == RESULT_OK) {
Intent intent = new Intent(this, PostActivity.class);
Bitmap thumbnail = (Bitmap) data.getExtras().get("data");
ByteArrayOutputStream stream = new ByteArrayOutputStream();
thumbnail.compress(Bitmap.CompressFormat.PNG, 100, stream);
byte[] byteArray = stream.toByteArray();
intent.putExtra("image",byteArray);
startActivity(i);
}
}
}
或者你的方法也应该是正确的。你必须Bitmap
通过 getParcelableExtra(String)
方法获得。
Bitmap thumbnail = getIntent().getParcelableExtra("data");