我想在 FirstActivity 中单击捕获按钮后显示图像,并使用 SecondActivity 在 activity_second(布局)中显示图像。
第一个 Activity
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_first);
Button take_photo = (Button) findViewById(R.id.btn_capture);
take_photo.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
Intent i = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivity(i);
}
});
}
布局activity_first
> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<Button
android:id="@+id/btn_capture"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginLeft="21dp"
android:text="Capture" />
</RelativeLayout>
第二个 Activity
> public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_second);
ImageView view = (ImageView) findViewById(R.id.view_photo);
}
activity_second
> <?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<ImageView
android:id="@+id/view_photo"
android:layout_width="260dp"
android:layout_height="374dp" />
</LinearLayout>
最佳答案
使用 startActivityForResult() 而不是 startActivity()
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// TODO Auto-generated method stub
super.onActivityResult(requestCode, resultCode, data);
Bitmap thumbnail = null;
if (requestCode == CAMERA_PIC_REQUEST) {
if (resultCode == RESULT_OK) {
thumbnail = (Bitmap) data.getExtras().get("data");
Intent i = new Intent(this, NextActivity.class);
i.putExtra("name", thumbnail);
startActivity(i);
}
}
}
接下来在下一个 Activity 中尝试使用这个
protected void onCreate(Bundle savedInstanceState) {
//TODO Auto-generated method stub
super.onCreate(savedInstanceState);
//intialize the image view
Bitmap bitmap = getIntent().getExtras().getParcelable("name");
//set the image here.
}
希望对你有帮助
关于android - 使用android中的另一个 Activity 从捕获中获取图像并在另一个布局中显示图像,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/11927710/