New API demo for installing/uninstalling applications.
Change-Id: Idaaf2003a6a34f2859887be32c82416ba4d06852
This commit is contained in:
Dianne Hackborn
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/*
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* Copyright (C) 2011 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.example.android.apis.content;
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import java.io.FileNotFoundException;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import android.content.ContentProvider;
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import android.content.ContentValues;
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import android.content.ContentProvider.PipeDataWriter;
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import android.content.res.AssetFileDescriptor;
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import android.database.Cursor;
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import android.net.Uri;
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import android.os.Bundle;
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import android.os.ParcelFileDescriptor;
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import android.util.Log;
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/**
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* A very simple content provider that can serve arbitrary asset files from
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* our .apk.
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*/
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public class FileProvider extends ContentProvider
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implements PipeDataWriter<InputStream> {
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@Override
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public boolean onCreate() {
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return true;
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}
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@Override
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public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs,
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String sortOrder) {
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// Don't support queries.
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return null;
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}
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@Override
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public Uri insert(Uri uri, ContentValues values) {
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// Don't support inserts.
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return null;
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}
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@Override
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public int delete(Uri uri, String selection, String[] selectionArgs) {
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// Don't support deletes.
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return 0;
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}
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@Override
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public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {
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// Don't support updates.
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return 0;
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}
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@Override
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public String getType(Uri uri) {
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// For this sample, assume all files are .apks.
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return "application/vnd.android.package-archive";
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}
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@Override
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public AssetFileDescriptor openAssetFile(Uri uri, String mode) throws FileNotFoundException {
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// Try to open an asset with the given name.
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try {
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InputStream is = getContext().getAssets().open(uri.getPath());
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// Start a new thread that pipes the stream data back to the caller.
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return new AssetFileDescriptor(
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openPipeHelper(uri, null, null, is, this), 0,
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AssetFileDescriptor.UNKNOWN_LENGTH);
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} catch (IOException e) {
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FileNotFoundException fnf = new FileNotFoundException("Unable to open " + uri);
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throw fnf;
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}
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}
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@Override
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public void writeDataToPipe(ParcelFileDescriptor output, Uri uri, String mimeType,
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Bundle opts, InputStream args) {
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// Transfer data from the asset to the pipe the client is reading.
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byte[] buffer = new byte[8192];
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int n;
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FileOutputStream fout = new FileOutputStream(output.getFileDescriptor());
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try {
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while ((n=args.read(buffer)) >= 0) {
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fout.write(buffer, 0, n);
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}
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} catch (IOException e) {
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Log.i("InstallApk", "Failed transferring", e);
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} finally {
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try {
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args.close();
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} catch (IOException e) {
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}
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try {
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fout.close();
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} catch (IOException e) {
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}
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}
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}
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}
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@@ -0,0 +1,179 @@
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/*
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* Copyright (C) 2011 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.example.android.apis.content;
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// Need the following import to get access to the app resources, since this
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// class is in a sub-package.
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import com.example.android.apis.R;
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import android.app.Activity;
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import android.content.ContentProvider;
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import android.content.ContentValues;
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import android.content.Context;
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import android.content.Intent;
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import android.content.ContentProvider.PipeDataWriter;
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import android.content.res.AssetFileDescriptor;
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import android.database.Cursor;
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import android.net.Uri;
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import android.os.Bundle;
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import android.os.ParcelFileDescriptor;
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import android.util.Log;
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import android.view.View;
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import android.view.View.OnClickListener;
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import android.widget.Button;
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import android.widget.TextView;
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import android.widget.Toast;
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import java.io.File;
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import java.io.FileNotFoundException;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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/**
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* Demonstration of styled text resources.
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*/
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public class InstallApk extends Activity {
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static final int REQUEST_INSTALL = 1;
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static final int REQUEST_UNINSTALL = 2;
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.install_apk);
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// Watch for button clicks.
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Button button = (Button)findViewById(R.id.unknown_source);
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button.setOnClickListener(mUnknownSourceListener);
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button = (Button)findViewById(R.id.my_source);
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button.setOnClickListener(mMySourceListener);
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button = (Button)findViewById(R.id.replace);
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button.setOnClickListener(mReplaceListener);
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button = (Button)findViewById(R.id.uninstall);
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button.setOnClickListener(mUninstallListener);
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button = (Button)findViewById(R.id.uninstall_result);
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button.setOnClickListener(mUninstallResultListener);
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}
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@Override
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public void onActivityResult(int requestCode, int resultCode, Intent intent) {
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if (requestCode == REQUEST_INSTALL) {
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if (resultCode == Activity.RESULT_OK) {
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Toast.makeText(this, "Install succeeded!", Toast.LENGTH_SHORT).show();
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} else if (resultCode == Activity.RESULT_CANCELED) {
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Toast.makeText(this, "Install canceled!", Toast.LENGTH_SHORT).show();
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} else {
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Toast.makeText(this, "Install Failed!", Toast.LENGTH_SHORT).show();
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}
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} else if (requestCode == REQUEST_UNINSTALL) {
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if (resultCode == Activity.RESULT_OK) {
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Toast.makeText(this, "Uninstall succeeded!", Toast.LENGTH_SHORT).show();
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} else if (resultCode == Activity.RESULT_CANCELED) {
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Toast.makeText(this, "Uninstall canceled!", Toast.LENGTH_SHORT).show();
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} else {
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Toast.makeText(this, "Uninstall Failed!", Toast.LENGTH_SHORT).show();
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}
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}
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}
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private OnClickListener mUnknownSourceListener = new OnClickListener() {
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public void onClick(View v) {
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Intent intent = new Intent(Intent.ACTION_INSTALL_PACKAGE);
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intent.setData(Uri.fromFile(prepareApk("HelloActivity.apk")));
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startActivity(intent);
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}
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};
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private OnClickListener mMySourceListener = new OnClickListener() {
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public void onClick(View v) {
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Intent intent = new Intent(Intent.ACTION_INSTALL_PACKAGE);
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intent.setData(Uri.fromFile(prepareApk("HelloActivity.apk")));
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intent.putExtra(Intent.EXTRA_NOT_UNKNOWN_SOURCE, true);
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intent.putExtra(Intent.EXTRA_RETURN_RESULT, true);
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intent.putExtra(Intent.EXTRA_INSTALLER_PACKAGE_NAME,
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getApplicationInfo().packageName);
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startActivityForResult(intent, REQUEST_INSTALL);
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}
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};
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private OnClickListener mReplaceListener = new OnClickListener() {
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public void onClick(View v) {
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Intent intent = new Intent(Intent.ACTION_INSTALL_PACKAGE);
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intent.setData(Uri.fromFile(prepareApk("HelloActivity.apk")));
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intent.putExtra(Intent.EXTRA_NOT_UNKNOWN_SOURCE, true);
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intent.putExtra(Intent.EXTRA_RETURN_RESULT, true);
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intent.putExtra(Intent.EXTRA_ALLOW_REPLACE, true);
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intent.putExtra(Intent.EXTRA_INSTALLER_PACKAGE_NAME,
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getApplicationInfo().packageName);
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startActivityForResult(intent, REQUEST_INSTALL);
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}
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};
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private OnClickListener mUninstallListener = new OnClickListener() {
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public void onClick(View v) {
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Intent intent = new Intent(Intent.ACTION_UNINSTALL_PACKAGE);
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intent.setData(Uri.parse(
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"package:com.example.android.helloactivity"));
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startActivity(intent);
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}
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};
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private OnClickListener mUninstallResultListener = new OnClickListener() {
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public void onClick(View v) {
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Intent intent = new Intent(Intent.ACTION_UNINSTALL_PACKAGE);
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intent.setData(Uri.parse(
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"package:com.example.android.helloactivity"));
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intent.putExtra(Intent.EXTRA_RETURN_RESULT, true);
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startActivityForResult(intent, REQUEST_UNINSTALL);
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}
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};
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private File prepareApk(String assetName) {
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// Copy the given asset out into a file so that it can be installed.
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// Returns the path to the file.
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byte[] buffer = new byte[8192];
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InputStream is = null;
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FileOutputStream fout = null;
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try {
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is = getAssets().open(assetName);
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fout = openFileOutput("tmp.apk", Context.MODE_WORLD_READABLE);
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int n;
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while ((n=is.read(buffer)) >= 0) {
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fout.write(buffer, 0, n);
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}
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} catch (IOException e) {
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Log.i("InstallApk", "Failed transferring", e);
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} finally {
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try {
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if (is != null) {
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is.close();
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}
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} catch (IOException e) {
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}
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try {
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if (fout != null) {
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fout.close();
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}
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} catch (IOException e) {
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}
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}
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return getFileStreamPath("tmp.apk");
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}
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}
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