Android获取未安装的APK图标的代码
发布时间:2020-12-15 00:18:20 所属栏目:Java 来源:网络整理
导读:今天PHP站长网 52php.cn把收集自互联网的代码分享给大家,仅供参考。 import java.io.File; import java.lang.reflect.Constructor; import java.lang.reflect.Field; import java.lang.reflect.Method; import android.a
以下代码由PHP站长网 52php.cn收集自互联网 现在PHP站长网小编把它分享给大家,仅供参考 import java.io.File; import java.lang.reflect.Constructor; import java.lang.reflect.Field; import java.lang.reflect.Method; import android.app.Activity; import android.content.Context; import android.content.pm.ApplicationInfo; import android.content.pm.PackageInfo; import android.content.pm.PackageManager; import android.content.res.Resources; import android.graphics.drawable.Drawable; import android.os.Bundle; import android.util.DisplayMetrics; import android.util.Log; import android.view.View; import android.widget.ImageView; public class FetchAPKIconAct extends Activity { public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); showUninstallAPKIcon("/sdcard/APK/JarodYv.FishPool.apk"); getUninatllApkInfo(this,"/sdcard/APK/JarodYv.FishPool.apk"); } /** 网传的方法,但获取不成功 */ public void getUninatllApkInfo(Context context,String archiveFilePath) { PackageManager pm = context.getPackageManager(); PackageInfo info = pm.getPackageArchiveInfo(archiveFilePath,PackageManager.GET_ACTIVITIES); if (info != null) { ApplicationInfo appInfo = info.applicationInfo; Drawable icon = pm.getApplicationIcon(appInfo); ImageView image = (ImageView) findViewById(R.id.apkIconByTradition); image.setVisibility(View.VISIBLE); image.setImageDrawable(icon); } } // private void showUninstallAPKIcon(String apkPath) { String PATH_PackageParser = "android.content.pm.PackageParser"; String PATH_AssetManager = "android.content.res.AssetManager"; try { // apk包的文件路径 // 这是一个Package 解释器,是隐藏的 // 构造函数的参数只有一个,apk文件的路径 // PackageParser packageParser = new PackageParser(apkPath); Class pkgParserCls = Class.forName(PATH_PackageParser); Class[] typeArgs = new Class[1]; typeArgs[0] = String.class; Constructor pkgParserCt = pkgParserCls.getConstructor(typeArgs); Object[] valueArgs = new Object[1]; valueArgs[0] = apkPath; Object pkgParser = pkgParserCt.newInstance(valueArgs); Log.d("ANDROID_LAB","pkgParser:" + pkgParser.toString()); // 这个是与显示有关的,里面涉及到一些像素显示等等,我们使用默认的情况 DisplayMetrics metrics = new DisplayMetrics(); metrics.setToDefaults(); // PackageParser.Package mPkgInfo = packageParser.parsePackage(new // File(apkPath),apkPath,// metrics,0); typeArgs = new Class[4]; typeArgs[0] = File.class; typeArgs[1] = String.class; typeArgs[2] = DisplayMetrics.class; typeArgs[3] = Integer.TYPE; Method pkgParser_parsePackageMtd = pkgParserCls.getDeclaredMethod("parsePackage",typeArgs); valueArgs = new Object[4]; valueArgs[0] = new File(apkPath); valueArgs[1] = apkPath; valueArgs[2] = metrics; valueArgs[3] = 0; Object pkgParserPkg = pkgParser_parsePackageMtd.invoke(pkgParser,valueArgs); // 应用程序信息包,这个公开的,不过有些函数,变量没公开 // ApplicationInfo info = mPkgInfo.applicationInfo; Field appInfoFld = pkgParserPkg.getClass().getDeclaredField("applicationInfo"); ApplicationInfo info = (ApplicationInfo) appInfoFld.get(pkgParserPkg); // uid 输出为"-1",原因是未安装,系统未分配其Uid。 Log.d("ANDROID_LAB","pkg:" + info.packageName + " uid=" + info.uid); // Resources pRes = getResources(); // AssetManager assmgr = new AssetManager(); // assmgr.addAssetPath(apkPath); // Resources res = new Resources(assmgr,pRes.getDisplayMetrics(),// pRes.getConfiguration()); Class assetMagCls = Class.forName(PATH_AssetManager); Constructor assetMagCt = assetMagCls.getConstructor((Class[]) null); Object assetMag = assetMagCt.newInstance((Object[]) null); typeArgs = new Class[1]; typeArgs[0] = String.class; Method assetMag_addAssetPathMtd = assetMagCls.getDeclaredMethod("addAssetPath",typeArgs); valueArgs = new Object[1]; valueArgs[0] = apkPath; assetMag_addAssetPathMtd.invoke(assetMag,valueArgs); Resources res = getResources(); typeArgs = new Class[3]; typeArgs[0] = assetMag.getClass(); typeArgs[1] = res.getDisplayMetrics().getClass(); typeArgs[2] = res.getConfiguration().getClass(); Constructor resCt = Resources.class.getConstructor(typeArgs); valueArgs = new Object[3]; valueArgs[0] = assetMag; valueArgs[1] = res.getDisplayMetrics(); valueArgs[2] = res.getConfiguration(); res = (Resources) resCt.newInstance(valueArgs); CharSequence label = null; if (info.labelRes != 0) { label = res.getText(info.labelRes); } // if (label == null) { // label = (info.nonLocalizedLabel != null) ? info.nonLocalizedLabel // : info.packageName; // } Log.d("ANDROID_LAB","label=" + label); // 这里就是读取一个apk程序的图标 if (info.icon != 0) { Drawable icon = res.getDrawable(info.icon); ImageView image = (ImageView) findViewById(R.id.apkIconBySodino); image.setVisibility(View.VISIBLE); image.setImageDrawable(icon); } } catch (Exception e) { e.printStackTrace(); } } } 以上内容由PHP站长网【52php.cn】收集整理供大家参考研究 如果以上内容对您有帮助,欢迎收藏、点赞、推荐、分享。 (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |