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此代码在所有Android版本上无法正常工作如何正确获取捕获的位图的uri？
在Android 4.x上正常工作，但在7.0上，此代码无效。代码可以捕获和保存图像，但关于裁剪图像的最后一步：我得到balck屏幕，意味着uri丢失。请在下面的代码后检查截图。
这里是我的演示：
import android.content.ActivityNotFoundException;
import android.content.Intent;
import android.graphics.Bitmap;
import android.net.Uri;
import android.provider.MediaStore;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.ImageView;
import android.widget.Toast;
import java.io.IOException;
public class CameraCrop1 extends AppCompatActivity {
Uri picUri;
Bitmap bitmap, bitmap2;
ImageView img, img_original;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_camera_crop1);
img=(ImageView)findViewById(R.id.imageView);
img_original=(ImageView)findViewById(R.id.imageView_original);
}
public void Capture(View view) {
Capture_Cam();
}
private void Capture_Cam() {
Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(cameraIntent, 1);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == 1 && resultCode == RESULT_OK && data != null) {
picUri = data.getData();
try {
// bitmap2 = MediaStore.Images.Media.getBitmap(this.getContentResolver(), picUri); // bitmap2 = original before cur
bitmap = MediaStore.Images.Media.getBitmap(this.getContentResolver(), Uri.parse("file://"+picUri));
img_original.setImageBitmap(bitmap);
} catch (IOException e) {
e.printStackTrace();
}
performCrop();
} else if (requestCode == 2) {
bitmap2=(Bitmap) data.getExtras().get("data");
img.setImageBitmap(bitmap2);
}else{
super.onActivityResult(requestCode, resultCode, data);
}
}
private void performCrop(){
try {
Intent cropIntent = new Intent("com.android.camera.action.CROP");
//indicate image type and Uri
cropIntent.setDataAndType(picUri, "image/*");
cropIntent.putExtra("crop", "true");
cropIntent.putExtra("aspectX", 1);
cropIntent.putExtra("aspectY", 1);
cropIntent.putExtra("outputX", 100);
cropIntent.putExtra("outputY", 100);
cropIntent.putExtra("scale", true);
cropIntent.putExtra("return-data", true);
startActivityForResult(cropIntent, 2);
Toast toast = Toast.makeText(this, "Done", Toast.LENGTH_SHORT);
}
catch(ActivityNotFoundException anfe){
//display an error message
String errorMessage = "Whoops - your device doesn't support the crop action!";
Toast toast = Toast.makeText(this, errorMessage, Toast.LENGTH_SHORT);
toast.show();
}
}
}
这里是XML：
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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:id="@+id/activity_camera_crop1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="Test.testing.CameraCrop1">
<ImageView
android:layout_width="400px"
android:layout_height="400px"
app:srcCompat="@color/colorAccent"
android:id="@+id/imageView"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true" />
<Button
android:text="Capture Camera"
android:onClick="Capture"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/button4"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true" />
<ImageView
android:layout_width="400px"
android:layout_height="400px"
app:srcCompat="@color/wallet_highlighted_text_holo_dark"
android:id="@+id/imageView_original"
android:layout_below="@+id/imageView"
android:layout_alignLeft="@+id/imageView"
android:layout_alignStart="@+id/imageView" />
</RelativeLayout>
我现在得到的路径的这个错误： '无法找到配置的根包含/存储/模拟/ 0 /安卓/数据/测试。测试/文件/图片/ JPEG_20170708_191838_1889413611.jpg' – Biblio
@Biblio你创建了文件提供程序并将其添加到清单中，如教程所示？确保将示例中的软件包替换为应用的实际软件包名称。 – pablobu