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アセットフォルダからpdf（a.pdf）を開くときに問題があります。これはlogcatあるアセットからPDFを開くときに問題が発生する
package com.tischer.alessandro.ecocardiochecklist;
import android.content.Context;
import android.content.Intent;
import android.content.res.AssetManager;
import android.net.Uri;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
public class Bibliografia extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_bibliografia);
AssetManager assetManager = getAssets();
InputStream in = null;
OutputStream out = null;
File file = new File(getFilesDir(), "a.pdf");
try
{
in = assetManager.open("a.pdf");
out = openFileOutput(file.getName(), Context.MODE_WORLD_READABLE);
copyFile(in, out);
in.close();
in = null;
out.flush();
out.close();
out = null;
} catch (Exception e)
{
Log.e("tag", e.getMessage());
}
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(
Uri.parse("file://" + getFilesDir() + "/a.pdf"),
"application/pdf");
startActivity(intent);
}
private void copyFile(InputStream in, OutputStream out) throws IOException
{
byte[] buffer = new byte[1024];
int read;
while ((read = in.read(buffer)) != -1)
{
out.write(buffer, 0, read);
}
}
}
： ティは、Javaコードで
11/10 11:52:42: Launching app
Cold swapped changes.
$ adb shell am start -n "com.tischer.alessandro.ecocardiochecklist/com.tischer.alessandro.ecocardiochecklist.SplashScreen" -a android.intent.action.MAIN -c android.intent.category.LAUNCHER
Client not ready yet..Waiting for process to come online
Connected to process 3259 on device Nexus_5X_API_24 [emulator-5554]
I/InstantRun: Instant Run Runtime started. Android package is com.tischer.alessandro.ecocardiochecklist, real application class is null.
[ 11-10 10:52:44.162 1489: 1510 D/ ]
HostConnection::get() New Host Connection established 0x8d361440, tid 1510
W/art: Before Android 4.1, method android.graphics.PorterDuffColorFilter android.support.graphics.drawable.VectorDrawableCompat.updateTintFilter(android.graphics.PorterDuffColorFilter, android.content.res.ColorStateList, android.graphics.PorterDuff$Mode) would have incorrectly overridden the package-private method in android.graphics.drawable.Drawable
W/gralloc_ranchu: Gralloc pipe failed
[ 11-10 10:52:45.193 3259: 3259 D/ ]
HostConnection::get() New Host Connection established 0x9d027140, tid 3259
[ 11-10 10:52:45.239 3259: 3278 D/ ]
HostConnection::get() New Host Connection established 0x9d0d6d40, tid 3278
I/OpenGLRenderer: Initialized EGL, version 1.4
D/OpenGLRenderer: Swap behavior 1
D/OpenGLRenderer: endAllActiveAnimators on 0x90937d80 (RippleDrawable) with handle 0x9d07eb80
E/tag: MODE_WORLD_READABLE no longer supported
D/AndroidRuntime: Shutting down VM
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.tischer.alessandro.ecocardiochecklist, PID: 3259
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.tischer.alessandro.ecocardiochecklist/com.tischer.alessandro.ecocardiochecklist.Bibliografia}: android.os.FileUriExposedException: file:///data/user/0/com.tischer.alessandro.ecocardiochecklist/files/a.pdf exposed beyond app through Intent.getData()
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2646)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2707)
at android.app.ActivityThread.-wrap12(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1460)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6077)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:865)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)
Caused by: android.os.FileUriExposedException: file:///data/user/0/com.tischer.alessandro.ecocardiochecklist/files/a.pdf exposed beyond app through Intent.getData()
at android.os.StrictMode.onFileUriExposed(StrictMode.java:1799)
at android.net.Uri.checkFileUriExposed(Uri.java:2346)
at android.content.Intent.prepareToLeaveProcess(Intent.java:8933)
at android.content.Intent.prepareToLeaveProcess(Intent.java:8894)
at android.app.Instrumentation.execStartActivity(Instrumentation.java:1517)
at android.app.Activity.startActivityForResult(Activity.java:4224)
at android.support.v4.app.BaseFragmentActivityJB.startActivityForResult(BaseFragmentActivityJB.java:48)
at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:75)
at android.app.Activity.startActivityForResult(Activity.java:4183)
at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:856)
at android.app.Activity.startActivity(Activity.java:4507)
at android.app.Activity.startActivity(Activity.java:4475)
at com.tischer.alessandro.ecocardiochecklist.Bibliografia.onCreate(Bibliografia.java:48)
at android.app.Activity.performCreate(Activity.java:6664)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1118)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2599)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2707)
at android.app.ActivityThread.-wrap12(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1460)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6077)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:865)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)
私は、Android 7.0実行しているんだけど、古いバージョンでも、アプリがクラッシュ...が問題どこにありますか？
*どこに問題がありますか？* FileUriExposedException - 自明の例外のように見えます...何度も尋ねられています...明白な解決策はFileProviderを使用することです – Selvin
申し訳ありませんが、私はアンドロイド開発で新しくなりました...私はコードで変更する必要があることを理解できません...あなたは私を助けることができますか？ –
FileUriExposedExceptionでインターネット検索を行います – Selvin