英文:
How do I fix Android Image Capture App Crashes
问题
以下是您要翻译的内容:
"I'm not sure what is going on. I click the button to take the image and my app closes.
I'm attempting to make an app to capture and use an image. I haven't even been able to capture the image.
I get the following message in log cat:
FATAL EXCEPTION: main
Process: com.example.fixmyphysics, PID: 23526
java.lang.IllegalArgumentException: Missing android.support.FILE_PROVIDER_PATHS meta-data
at androidx.core.content.FileProvider.parsePathStrategy(FileProvider.java:613)
at androidx.core.content.FileProvider.getPathStrategy(FileProvider.java:579)
at androidx.core.content.FileProvider.getUriForFile(FileProvider.java:417)
at com.example.fixmyphysics.MainActivity.dispatchPictureTakerAction(MainActivity.java:67)
at com.example.fixmyphysics.MainActivity.access$000(MainActivity.java:27)
at com.example.fixmyphysics.MainActivity$1.onClick(MainActivity.java:44)
at android.view.View.performClick(View.java:7356)
at android.widget.TextView.performClick(TextView.java:14230)
at android.view.View.performClickInternal(View.java:7322)
at android.view.View.access$3200(View.java:846)
at android.view.View$PerformClick.run(View.java:27804)
at android.os.Handler.handleCallback(Handler.java:873)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:214)
at android.app.ActivityThread.main(ActivityThread.java:7073)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:494)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:964)
MainActivity.java"
AndroidMainifest.xml"
英文:
I'm not sure what is going on. I click the button to take the image and my app closes.
I'm attempting to make an app to capture and use an image. I haven't even been able to capture the image.
I get the following message in log cat:
FATAL EXCEPTION: main
Process: com.example.fixmyphysics, PID: 23526
java.lang.IllegalArgumentException: Missing android.support.FILE_PROVIDER_PATHS meta-data
at androidx.core.content.FileProvider.parsePathStrategy(FileProvider.java:613)
at androidx.core.content.FileProvider.getPathStrategy(FileProvider.java:579)
at androidx.core.content.FileProvider.getUriForFile(FileProvider.java:417)
at com.example.fixmyphysics.MainActivity.dispatchPictureTakerAction(MainActivity.java:67)
at com.example.fixmyphysics.MainActivity.access$000(MainActivity.java:27)
at com.example.fixmyphysics.MainActivity$1.onClick(MainActivity.java:44)
at android.view.View.performClick(View.java:7356)
at android.widget.TextView.performClick(TextView.java:14230)
at android.view.View.performClickInternal(View.java:7322)
at android.view.View.access$3200(View.java:846)
at android.view.View$PerformClick.run(View.java:27804)
at android.os.Handler.handleCallback(Handler.java:873)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:214)
at android.app.ActivityThread.main(ActivityThread.java:7073)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:494)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:964)
MainActivity.java
package com.example.fixmyphysics;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.content.FileProvider;
import android.Manifest;
import android.content.Intent;
import android.os.Build;
import android.os.Bundle;
import android.provider.MediaStore;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Environment;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
import java.io.File;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
import static android.os.Environment.getExternalStoragePublicDirectory;
public class MainActivity extends AppCompatActivity {
Button picture_btn;
ImageView display;
String pathToFile;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
picture_btn = findViewById(R.id.capture_image);
if (Build.VERSION.SDK_INT >=23){
requestPermissions(new String[]{Manifest.permission.CAMERA, Manifest.permission.WRITE_EXTERNAL_STORAGE}, 2);
}
picture_btn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
dispatchPictureTakerAction();
}
});
display = findViewById(R.id.imageView4);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == 1 && resultCode == RESULT_OK) {
Bitmap imageBitmap = BitmapFactory.decodeFile(pathToFile);
display.setImageBitmap(imageBitmap);
}
}
private void dispatchPictureTakerAction(){
Intent takePic = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
if (takePic.resolveActivity(getPackageManager()) !=null){
File photoFile = null;
photoFile = createImageFile();
if (photoFile != null){
pathToFile = photoFile.getAbsolutePath();
Uri photoURI = FileProvider.getUriForFile(MainActivity.this, "com.fixmyphysics.FileProvider", photoFile);
takePic.putExtra(MediaStore.EXTRA_OUTPUT, photoURI);
startActivityForResult(takePic, 1);
}
}
}
private File createImageFile() {
String name = new SimpleDateFormat("yyyyMMdd__HHmmss").format(new Date());
File storageDir = getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);
File image = null;
try {
image = File.createTempFile(name,".jpg", storageDir);
} catch (IOException e){
Log.d("mylog", "Excep : " + e.toString());
}
return image;
}
}
AndroidMainifest.xml
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.fixmyphysics">
<uses-feature android:name="android.hardware.camera" android:required="true" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.CAMERA" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name= ".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<provider
android:name="androidx.core.content.FileProvider"
android:authorities="${applicationId}.provider"
android:exported="false"
android:grantUriPermissions="true">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="@xml/file_paths">
</meta-data>
</provider>
</application>
</manifest>
答案1
得分: 0
尝试这个。
<uses-permission
android:name="android.permission.WRITE_EXTERNAL_STORAGE"
android:maxSdkVersion="18" />`输入代码在这里`
英文:
Try this one.
<uses-permission
android:name="android.permission.WRITE_EXTERNAL_STORAGE"
android:maxSdkVersion="18" />`enter code here`
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