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android - 在android Nougat中安装apk文件时如何解决解析包错误

问题描述

我正在以编程方式安装设备中存在的 APK 文件。这是我的代码。

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        askForPermission(Manifest.permission.READ_EXTERNAL_STORAGE,0x4);
        askForPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE,0x3);

        Button button = findViewById(R.id.install);
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {


                Intent intent = new Intent();
                Uri photoURI = FileProvider.getUriForFile(getApplicationContext(), BuildConfig.APPLICATION_ID + ".provider", new File(Environment.getExternalStorageDirectory()+"/ExtractedApks/Airtel_TV_tv.accedo.airtel.wynk.apk"));
                //Uri photoURI = FileProvider.getUriForFile(getApplicationContext(), BuildConfig.APPLICATION_ID + ".provider", new File(Environment.getExternalStorageDirectory()+"/Download/Airtel_TV_tv.accedo.airtel.wynk.apk"));
                intent.setDataAndType(photoURI, "application/vnd.android.package-archive");
                intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
                startActivity(intent);



            }
        });

    }

    private void askForPermission(String permission, Integer requestCode) {
        if (ContextCompat.checkSelfPermission(MainActivity.this, permission) != PackageManager.PERMISSION_GRANTED) {
            if (ActivityCompat.shouldShowRequestPermissionRationale(MainActivity.this, permission)) {
                ActivityCompat.requestPermissions(MainActivity.this, new String[]{permission}, requestCode);
            } else {
                ActivityCompat.requestPermissions(MainActivity.this, new String[]{permission}, requestCode);
            }
        } else {
            return;
            //Toast.makeText(this, "" + permission + " is already granted.", Toast.LENGTH_SHORT).show();
        }
    }


}


**MainActivity** - create a button to install apk file store in external memory.

/************************************************* *************************/

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.user.installapkfiles">

    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        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="android.support.v4.content.FileProvider"
            android:grantUriPermissions="true"
            android:exported="false"
            android:authorities="${applicationId}.provider">
            <meta-data
                android:name="android.support.FILE_PROVIDER_PATHS"
                android:resource="@xml/file_provider_paths"/>
        </provider>

    </application>

</manifest>

清单- 使其他应用程序能够安装的文件提供程序。/************************************************* ******************************/

<?xml version="1.0" encoding="utf-8"?>
<paths>
<!--    <cache-path name="cache" path="." />
    <files-path name="files" path="."/>
    <external-path name="external_files" path="."/>-->

    <external-path path="Android/data/${applicationId}/" name="files_root" />
    <root-path name="root" path="/" />
    <!--<external-path path="." name="external_storage_root" />-->

</paths>

File_provider - 指向外部存储的文件提供程序。/************************************************* ******************************/

I'm selecting package installer for installing the application. But, it is poping  "There was a problem while parsing the package".
How to resolve this error.

Thanks & Regards,
Gowtham M

标签： androidapk

解决方案

1.File may be downloaded incompletely.
2.Application might be not suitable for your hardware or OS version.
3.Due to security issue settings
4.Corrupted APK file.

为了解决这个错误

  1.Go to the settings
  2.Scroll down & select option “security.”
  3.Check on the option “Unknown sources.”

要启用 USB 调试：

1. Go to the settings >> Scroll down then, at last, you will see
        option “About device” select it.
2. Look for option “build number.” Tap on “Build number” for 7 times.
3. You will see a message “you are now a developer.” Once you enable to
4.  go back to settings Choose “Developer options.” Tick mark "USB
            debugging."

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