import java.io.File;
import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
public class MainActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Button installBtn = (Button)findViewById(R.id.install_btn);
installBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(Uri.fromFile(new File("/sdcard/xxx.apk")),
"application/vnd.android.package-archive");
MainActivity.this.startActivity(intent);
}
});
Button uninstallBtn = (Button)findViewById(R.id.uninstall_btn);
uninstallBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Uri uri = Uri.parse("package:com.xxx.xxx(包名)");
Intent intent2 = new Intent(Intent.ACTION_DELETE, uri);
MainActivity.this.startActivity(intent2);
}
});
}
}
上述安装不仅可以安装新的apk,也适用于更新旧的apk
更新apk必须保证新旧apk签名一致。
对于data分区的外部应用更新:
新的apk覆盖旧的apk
对于systen系统分区的内置应用更新:
system/app/下的旧apk仍然存在,新的apk被复制到data/app下。虽然同时存在两新旧apk,但运行时系统选择data分区的新apk运行!
如果执行卸载则是删除data分区的apk,再次启动程序运行的是system的旧apk
静默安装
静默安装apk时,程序需要平台签名(使用signapk),
singapk命令行签名
#java -jar signapk.jar platform.x509.pem platform.pk8 xxx.apk xxx-sign.apk
如果要将apk安装在system分区下还要在mantifest中加入系统权限
<mantifest
...
android:sharedUserId="android.uid.system" >
uses-permission也需要安装apk的权限
<uses-permission android:name="android.permission.INSTALL_PACKAGES" />
eclipse工程需要引入framework.jar
自定义MyPackageInstallObserver类继承自IPackageInstallObserver.Stub
public void installOnBackground(File file){
Log.i(TAG, "installOnBackground()");
int installFlags = 0;
Uri packageUri = Uri.fromFile(file); //file是要安装的apk文件
PackageManager pm = mContext.getPackageManager();
installFlags |= PackageManager.INSTALL_REPLACE_EXISTING;
MyPackageInstallObserver observer = new MyPackageInstallObserver();
pm.installPackage(packageUri, observer, installFlags, "com.xxx.xxx包名");
}
private static class MyPackageInstallObserver extends IPackageInstallObserver.Stub{
@Override
public void packageInstalled(String packageName, int returnCode)
throws RemoteException {
//returnCode=1表示安装成功
Log.e(TAG, "packageInstalled()");
Log.i(TAG, "packageName = " + packageName);
Log.i(TAG, "returnCode = " + returnCode);
}
}