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[英]How to get and list all the installed/available navigations apps along with their icons in Android?
[英]Get icons of all installed apps in android
我想獲取我所有已安裝應用程序的圖標。 我可以使用包管理器獲取那個圖標嗎? 它有什么功能嗎? 或者任何其他方式來獲取位圖中所有已安裝應用程序的圖標?
謝謝!
try {
String pkg = "com.app.my";//your package name
Drawable icon = getContext().getPackageManager().getApplicationIcon(pkg);
imageView.setImageDrawable(icon);
} catch (PackageManager.NameNotFoundException ne) {
}
查看此處了解更多詳情。
樓上的回答都不錯。
您的問題是:-獲取 android 中所有已安裝應用的圖標? 你想要安裝應用程序圖標的列表
這是幫助您使用 Application (icons,packages names)獲取安裝應用程序列表的代碼。
**Declare variable in your Activity**
private CustomAppListAdapter customAppListAdapter;
private ArrayList<AppListMain> appListMainArrayList;
private AppListMain appListMain;
只需在您的活動 onCreate() 中調用以下函數 loadApps()
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_app_list);
loadApps();
}
public void loadApps() {
try {
packageManager = getPackageManager();
appListMainArrayList = new ArrayList<>();
Intent intent = new Intent(Intent.ACTION_MAIN, null);
intent.addCategory(Intent.CATEGORY_LAUNCHER);
List<ResolveInfo> resolveInfoList = packageManager.queryIntentActivities(intent, 0);
for (ResolveInfo resolveInfo : resolveInfoList) {
AppListMain appListMain = new AppListMain();
appListMain.setAppIcon(resolveInfo.activityInfo.loadIcon(packageManager));
appListMain.setAppName(resolveInfo.loadLabel(packageManager).toString());
appListMain.setAppPackage(resolveInfo.activityInfo.packageName);
appListMainArrayList.add(appListMain);
}
} catch (Exception e) {
e.printStackTrace();
}
}
這是鏈接供參考
要么
您可以從 My Github存儲庫下載自定義啟動器代碼
試試這個方法:創建一個名為PackageInformation
的類:
public class PackageInformation {
private Context mContext;
public PackageInformation(Context context) {
mContext = context;
}
class InfoObject {
public String appname = "";
public String pname = "";
public String versionName = "";
public int versionCode = 0;
public Drawable icon;
public void InfoObjectAggregatePrint() { //not used yet
Log.v(appname, appname + "\t" + pname + "\t" + versionName + "\t" + versionCode);
}
}
private ArrayList < InfoObject > getPackages() {
ArrayList < InfoObject > apps = getInstalledApps(false);
final int max = apps.size();
for (int i = 0; i < max; i++) {
apps.get(i).prettyPrint();
}
return apps;
}
public ArrayList < InfoObject > getInstalledApps(boolean getSysPackages) {
ArrayList < InfoObject > res = new ArrayList < InfoObject > ();
List < PackageInfo > packs = mContext.getPackageManager().getInstalledPackages(0);
for (int i = 0; i < packs.size(); i++) {
PackageInfo p = packs.get(i);
if ((!getSysPackages) && (p.versionName == null)) {
continue;
}
InfoObject newInfo = new InfoObject();
newInfo.appname = p.applicationInfo.loadLabel(mContext.getPackageManager()).toString();
newInfo.pname = p.packageName;
newInfo.versionName = p.versionName;
newInfo.versionCode = p.versionCode;
newInfo.icon = p.applicationInfo.loadIcon(mContext.getPackageManager());
res.add(newInfo);
}
return res;
}
}
把它藏在某個地方,現在從你的工作 Activity 類中訪問信息,請執行以下操作:
PackageInformation androidPackagesInfo = new PackageInformation(this);
ArrayList < InfoObject > appsData = androidPackagesInfo.getInstalledApps(true);
for (InfoObject info: appsData) {
Toast.makeText(MainActivity.this, info.appname, 2).show();
Drawable somedrawable = info.icon;
}
我覺得最簡單的方法:
private List<ResolveInfo> installedApps() {
final Intent main_intent = new Intent(Intent.ACTION_MAIN, null);
main_intent.addCategory(Intent.CATEGORY_LAUNCHER);
return package_manager.queryIntentActivities(main_intent, 0);
}
現在要獲取圖標,請使用:
for(ResolveInfo ri : installedApps()) {
// to get drawable icon --> ri.loadIcon(package_manager)
}
以下是您可以獲取所有已安裝應用程序圖標的代碼。
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
try {
// try getting the properly colored launcher icons
LauncherApps launcher = (LauncherApps) this.getSystemService(LAUNCHER_APPS_SERVICE);
List<LauncherActivityInfo> activityList = launcher.getActivityList(packageName, android.os.Process.myUserHandle());
drawable = activityList.get(0).getBadgedIcon(0);
} catch (Exception e) {
}
}
if (drawable == null) {
try {
getPackageManager().getApplicationIcon(packageName);
} catch (PackageManager.NameNotFoundException e) {
e.printStackTrace();
}
}
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