android的APK安装卸载相关测试代码

package com.example.yokindemo;

import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import android.app.Activity;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;

public class MainActivity extends Activity implements OnClickListener {

	private static final String TAG = "MainActivity";
	private Button jia, uninst;

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

		copyApkFromAssets(this, "jia.apk", Environment
				.getExternalStorageDirectory().getAbsolutePath() + "/jia.apk");

		jia = (Button) findViewById(R.id.jia);
		jia.setOnClickListener(this);
		
		uninst = (Button) findViewById(R.id.button1);
		uninst.setOnClickListener(this);
	}

	public boolean install(String apkPath) {
		boolean result = false;
		DataOutputStream dataOutputStream = null;
		BufferedReader errorStream = null;
		try {
			Process process = Runtime.getRuntime().exec("su");
			dataOutputStream = new DataOutputStream(process.getOutputStream());
			String argString = "pm install -r " + apkPath + "\n";
			String command = new String(argString.getBytes(),"UTF-8");
			dataOutputStream.write(command.getBytes());
			dataOutputStream.flush();
			dataOutputStream.writeBytes("exit\n");
			dataOutputStream.flush();
			process.waitFor();
			errorStream = new BufferedReader(new InputStreamReader(
					process.getErrorStream()));
			String msg = "";
			String line;
			while ((line = errorStream.readLine()) != null)
				msg += line;
			if (!msg.contains("Failure"))
				result = true;
		} catch (Exception e) {
			Log.e(TAG, e.getMessage(), e);
		} finally {
			try {
				if (dataOutputStream != null)
					dataOutputStream.close();
				if (errorStream != null)
					errorStream.close();
			} catch (IOException e) {
				Log.e(TAG, e.getMessage(), e);
			}
		}
		return result;
	}
	
	private int getAPKVersion(){
		String filePath = Environment
				.getExternalStorageDirectory().getAbsolutePath() + "/jia.apk";  
		PackageManager packageManager = getPackageManager();  
		PackageInfo packageInfo = packageManager.getPackageArchiveInfo(filePath, PackageManager.GET_ACTIVITIES);
		return packageInfo.versionCode;
	}
	
	private void uninstallAPK(){
		Uri packageURI = Uri.parse("package:com.example.jia");   
		Intent uninstallIntent = new Intent(Intent.ACTION_DELETE, packageURI);   
		startActivity(uninstallIntent);
	}

	private boolean isAppInstalled(String packName) {
		PackageManager pm = getPackageManager();
		boolean installed = false;
		try {
			Log.d(TAG, "apk="+getAPKVersion());
			PackageInfo pi = pm.getPackageInfo(packName, PackageManager.GET_ACTIVITIES);
			Log.d(TAG, "ver="+pi.versionCode);
			installed = true;
		} catch (PackageManager.NameNotFoundException e) {
			installed = false;
		}
		return installed;
	}

	@Override
	public void onClick(View v) {
		switch (v.getId()) {
		case R.id.jia:
			if (isAppInstalled("com.example.jia")) {
				Toast.makeText(MainActivity.this, "jia已经安装", Toast.LENGTH_LONG).show();
			} else {
				Toast.makeText(MainActivity.this, "jia还没安装", Toast.LENGTH_LONG).show();
			}

			Intent intent = new Intent();
			ComponentName cn = new ComponentName("com.example.jia",
					"com.example.jia.MainActivity");
			intent.setComponent(cn);
			intent.setAction("android.intent.action.MAIN");
			try {
				startActivityForResult(intent, RESULT_OK);
			} catch (Exception e) {
				if (!install(Environment.getExternalStorageDirectory()
						.getAbsolutePath() + "/jia.apk")) {
					Intent intent1 = new Intent(Intent.ACTION_VIEW);
					intent1.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
					intent1.setDataAndType(
							Uri.parse("file://"
									+ Environment.getExternalStorageDirectory().getAbsolutePath()
									+ "/jia.apk"), "application/vnd.android.package-archive");
					startActivity(intent1);
				}
			}
			break;
		case R.id.button1:
			Log.d(TAG, "button1");
			uninstallAPK();
			break;
		default:
			break;
		}
	}

	public boolean copyApkFromAssets(Context context, String fileName, String path) {
		boolean copyIsFinish = false;
		try {
			InputStream is = context.getAssets().open(fileName);
			File file = new File(path);
			file.createNewFile();
			FileOutputStream fos = new FileOutputStream(file);
			byte[] temp = new byte[1024];
			int i = 0;
			while ((i = is.read(temp)) > 0) {
				fos.write(temp, 0, i);
			}
			fos.close();
			is.close();
			copyIsFinish = true;
		} catch (IOException e) {
			e.printStackTrace();
		}
		return copyIsFinish;
	}
}