Android 获取手机所有应用包名以及权限

package gongzibai.co.cc;

import java.util.List;

import android.app.Activity;
import android.app.Application;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PermissionInfo;
import android.os.Bundle;
import android.widget.TextView;

public class Package1Activity extends
Activity {
TextView mTextView;

/** Called when the activity is first created. */
@Override
public void onCreate(
Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mTextView = (TextView) findViewById(R.id.textView1);
PackageManager packageManager = getPackageManager();

List<PackageInfo> list = packageManager
.getInstalledPackages(PackageManager.GET_PERMISSIONS);
StringBuilder stringBuilder = new StringBuilder();

for (PackageInfo packageInfo : list) {

stringBuilder
.append("package name:"
+ packageInfo.packageName
+ "\n");
ApplicationInfo applicationInfo = packageInfo.applicationInfo;
stringBuilder
.append("应用名称:"
+ applicationInfo
.loadLabel(packageManager)
+ "\n");

if (packageInfo.permissions != null) {

for (PermissionInfo p : packageInfo.permissions) {

stringBuilder
.append("权限包括:"
+ p.name
+ "\n");
}

}
stringBuilder.append("\n");
}

mTextView.setText(stringBuilder
.toString());

}
}