Java tutorial
/* * Copyright (C) 2011-2014 asksven * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at *et * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.asksven.betterbatterystats; import android.content.ActivityNotFoundException; import android.content.Context; import android.content.Intent; import android.content.pm.PackageManager; import android.graphics.drawable.Drawable; import android.net.Uri; import android.os.Build; import android.os.Bundle; import android.provider.Settings; import android.support.v4.app.Fragment; import android.support.v4.app.FragmentManager; import android.support.v7.app.ActionBarActivity; import android.support.v7.widget.Toolbar; import android.util.Log; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.Button; import android.widget.ImageView; import android.widget.TextView; import android.widget.Toast; import com.asksven.betterbatterystats.R; public class PackageFragmentActivity extends BaseActivity { static final String TAG = "PackageFragmentActivity"; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); FragmentManager fm = getSupportFragmentManager(); // Create the list fragment and add it as our sole content. if (fm.findFragmentById(R.layout.packageinfo) == null) { PackageFragment frag = new PackageFragment(); fm.beginTransaction().add(R.layout.packageinfo, frag).commit(); } } public static class PackageFragment extends Fragment { String m_packageName; /** * When creating, retrieve this instance's number from its arguments. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); Bundle b = getActivity().getIntent().getExtras(); m_packageName = b.getString("package"); } /** * The Fragment's UI is just a simple text view showing its instance * number. */ @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View v = inflater.inflate(R.layout.packageinfo, container, false); Bundle b = getActivity().getIntent().getExtras(); m_packageName = b.getString("package"); TextView pName = (TextView) v.findViewById(R.id.TextViewPName); pName.setText(m_packageName); TextView pOnly4_3 = (TextView) v.findViewById(R.id.TextViewOnly43); final Button buttonSettings = (Button) v.findViewById(R.id.buttonSettings); buttonSettings.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { showInstalledAppDetails(getActivity(), PackageFragment.this.m_packageName); } }); final Button buttonAppOps = (Button) v.findViewById(R.id.ButtonAppOps); if (Build.VERSION.SDK_INT >= 18) { pOnly4_3.setVisibility(View.GONE); buttonAppOps.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { showAppOps(getActivity(), PackageFragment.this.m_packageName); } }); } else { // disable as app ops is not available buttonAppOps.setEnabled(false); } ImageView iconView = (ImageView) v.findViewById(R.id.icon); Drawable icon; PackageManager manager = getActivity().getPackageManager(); try { icon = manager.getApplicationIcon(m_packageName); iconView.setImageDrawable(icon); } catch (Exception e) { // nop: no icon found icon = null; } return v; } } private static final String SCHEME = "package"; private static final String APP_PKG_NAME_21 = "com.android.settings.ApplicationPkgName"; private static final String APP_PKG_NAME_22 = "pkg"; private static final String APP_DETAILS_PACKAGE_NAME = "com.android.settings"; private static final String APP_DETAILS_CLASS_NAME = "com.android.settings.InstalledAppDetails"; public static void showInstalledAppDetails(Context context, String packageName) { Intent intent = new Intent(); final int apiLevel = Build.VERSION.SDK_INT; if (apiLevel >= 9) { // above 2.3 intent.setAction(Settings.ACTION_APPLICATION_DETAILS_SETTINGS); Uri uri = Uri.fromParts(SCHEME, packageName, null); intent.setData(uri); } else { // below 2.3 final String appPkgName = (apiLevel == 8 ? APP_PKG_NAME_22 : APP_PKG_NAME_21); intent.setAction(Intent.ACTION_VIEW); intent.setClassName(APP_DETAILS_PACKAGE_NAME, APP_DETAILS_CLASS_NAME); intent.putExtra(appPkgName, packageName); } context.startActivity(intent); } public static void showAppOps(Context context, String packageName) { Intent intent = null; // JB if (Build.VERSION.SDK_INT == 18) { intent = new Intent("android.settings.APP_OPS_SETTINGS"); Uri uri = Uri.fromParts(SCHEME, packageName, null); } else if (Build.VERSION.SDK_INT >= 19) { // @see http://brightechno.com/blog/archives/211 intent = new Intent(); intent.setClassName("com.android.settings", "com.android.settings.Settings"); intent.setAction(Intent.ACTION_MAIN); intent.addCategory(Intent.CATEGORY_DEFAULT); intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS); intent.putExtra(":android:show_fragment", "com.android.settings.applications.AppOpsSummary"); } if (intent != null) { try { context.startActivity(intent); } catch (ActivityNotFoundException e) { Toast.makeText(context, context.getString(R.string.message_no_appops), Toast.LENGTH_SHORT).show(); } } } }