英文:
Capture the layout and save it as image
问题
我有以下的代码，我想当我点击按钮时，将会捕获并保存**"@+id/layout_capture"**作为一个带有指定名称的图像到相册中。
我已经尝试过[这个][1]，但它在我的代码中不起作用。
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:orientation="vertical"
tools:context=".MainActivity">
<LinearLayout
android:id="@+id/layout_capture"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
android:layout_gravity="center"
android:gravity="center_horizontal"
android:background="#AFA4BF"
android:padding="10dp">
<ImageView
android:id="@+id/noaman_1"
android:layout_width="89dp"
android:layout_height="89dp"
android:src="@drawable/ic_launcher_foreground"
android:background="@drawable/ic_launcher_background"/>
<!-- First Semister Result -->
<TextView
android:id="@+id/first_semis1"
android:layout_width="180dp"
android:layout_height="24dp"
android:layout_marginTop="20dp"
android:text="@string/first_semis"
android:textAppearance="@style/first_semis"
android:gravity="center_horizontal|top"/>
<TextView
android:id="@+id/first_semis2"
android:layout_width="180dp"
android:layout_height="24dp"
android:text="@string/first_semis"
android:textAppearance="@style/first_semis"
android:gravity="center_horizontal|top"/>
</LinearLayout>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/first_semis"/>
</LinearLayout>
> 这是屏幕内容
[![enter image description here][2]][2]
> 这是捕获之后
[![enter image description here][3]][3]
> **感谢您的时间 ❤**
[1]: https://stackoverflow.com/questions/32779405/save-part-of-activity-fragment-as-image
[2]: https://i.stack.imgur.com/TVJin.png
[3]: https://i.stack.imgur.com/OFHi0.png
<details>
<summary>英文:</summary>
I have the following code below, I want to when I click on the button, the **"@+id/layout_capture"** will be captured and saved as an image .to the gallery with specified name.
I've tried [this][1] but doesn't work with my code
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:orientation="vertical"
tools:context=".MainActivity">
<LinearLayout
android:id="@+id/layout_capture"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
android:layout_gravity="center"
android:gravity="center_horizontal"
android:background="#AFA4BF"
android:padding="10dp"
>
<ImageView
android:id="@+id/noaman_1"
android:layout_width="89dp"
android:layout_height="89dp"
android:src="@drawable/ic_launcher_foreground"
android:background="@drawable/ic_launcher_background"
/>
<!-- First Semister Result -->
<TextView
android:id="@+id/first_semis1"
android:layout_width="180dp"
android:layout_height="24dp"
android:layout_marginTop="20dp"
android:text="@string/first_semis"
android:textAppearance="@style/first_semis"
android:gravity="center_horizontal|top"
/>
<TextView
android:id="@+id/first_semis2"
android:layout_width="180dp"
android:layout_height="24dp"
android:text="@string/first_semis"
android:textAppearance="@style/first_semis"
android:gravity="center_horizontal|top"
/>
</LinearLayout>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/first_semis"
/>
</LinearLayout>
> this is the screen content
[![enter image description here][2]][2]
> and this after capture
[![enter image description here][3]][3]
> **thanks for your time ❤**
[1]: https://stackoverflow.com/questions/32779405/save-part-of-activity-fragment-as-image
[2]: https://i.stack.imgur.com/TVJin.png
[3]: https://i.stack.imgur.com/OFHi0.png
</details>
# 答案1
**得分**: 1
```xml
我已经复制了您的layout.xml文件，并在代码中简单地添加了onClick操作：
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/first_semis"
android:onClick="capture"
/>
我在您提供的链接中找到的代码确实完美运行：
以下是我的MainActivity.java文件：
package com.example.androidlayout;
import androidx.appcompat.app.AppCompatActivity;
import android.content.res.Configuration;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.provider.MediaStore;
import android.view.View;
import android.widget.LinearLayout;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public void capture(View view){
Bitmap photo = getBitmapFromView((LinearLayout) findViewById(R.id.layout_capture));
String savedImageURL = MediaStore.Images.Media.insertImage(
getContentResolver(),
photo,
"your_layout",
"image"
);
}
public static Bitmap getBitmapFromView(View view) {
//Define a bitmap with the same size as the view
Bitmap returnedBitmap = Bitmap.createBitmap(view.getWidth(), view.getHeight(),Bitmap.Config.ARGB_8888);
//Bind a canvas to it
Canvas canvas = new Canvas(returnedBitmap);
//Get the view's background
Drawable bgDrawable =view.getBackground();
if (bgDrawable!=null)
//has background drawable, then draw it on the canvas
bgDrawable.draw(canvas);
else
//does not have background drawable, then draw white background on the canvas
canvas.drawColor(Color.WHITE);
// draw the view on the canvas
view.draw(canvas);
//return the bitmap
return returnedBitmap;
}
}
它将图像保存到您的图库中。
英文:
I've copied your layout.xml file and simply added the onClick Action to the code:
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/first_semis"
android:onClick="capture"
/>
I used the code in your link and it does work perfectly:
Here is my MainActivity.java file:
package com.example.androidlayout;
import androidx.appcompat.app.AppCompatActivity;
import android.content.res.Configuration;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.provider.MediaStore;
import android.view.View;
import android.widget.LinearLayout;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public void capture(View view){
Bitmap photo = getBitmapFromView((LinearLayout) findViewById(R.id.layout_capture));
String savedImageURL = MediaStore.Images.Media.insertImage(
getContentResolver(),
photo,
"your_layout",
"image"
);
}
public static Bitmap getBitmapFromView(View view) {
//Define a bitmap with the same size as the view
Bitmap returnedBitmap = Bitmap.createBitmap(view.getWidth(), view.getHeight(),Bitmap.Config.ARGB_8888);
//Bind a canvas to it
Canvas canvas = new Canvas(returnedBitmap);
//Get the view's background
Drawable bgDrawable =view.getBackground();
if (bgDrawable!=null)
//has background drawable, then draw it on the canvas
bgDrawable.draw(canvas);
else
//does not have background drawable, then draw white background on the canvas
canvas.drawColor(Color.WHITE);
// draw the view on the canvas
view.draw(canvas);
//return the bitmap
return returnedBitmap;
}
}
It saves the image to your gallery.
通过集体智慧和协作来改善编程学习和解决问题的方式。致力于成为全球开发者共同参与的知识库，让每个人都能够通过互相帮助和分享经验来进步。
评论