Android实例-调用系统APP(XE10+小米2)
相关资料:
1.群号383675978
2.http://blog.sina.com.cn/s/blog_44fa172f0101rmjt.html
3.PS:ListView1.ItemAppearanceObjects.ItemObjects.Text.Font.Size:=20; 设置字体大小,属性面板也可以设置。代码设置时需要看一下手机支持的大小是多少。
实例源码:
1 unit Unit1; 2 3 interface 4 5 uses 6 System.SysUtils, System.Types, System.UITypes, System.Classes, System.Variants, 7 FMX.Types, FMX.Controls, FMX.Forms, FMX.Graphics, FMX.Dialogs, 8 FMX.Controls.Presentation, FMX.Edit, 9 Androidapi.JNI.JavaTypes,//JString使用 10 Androidapi.JNI.GraphicsContentViewText,//JIntent使用 11 FMX.Surfaces,//TBitmapSurface使用 12 Androidapi.Helpers,//SharedActivity使用 13 System.IOUtils,//TPath使用 14 Androidapi.JNIBridge,//ILocalObject使用 15 FMX.Helpers.Android,//JBitmapToSurface使用 16 System.Generics.Collections,//TList使用 17 FMX.ListView.Types, FMX.ListView.Appearances, 18 FMX.ListView.Adapters.Base, FMX.ListView, FMX.StdCtrls, FMX.ScrollBox, 19 FMX.Memo; 20 21 type 22 TForm1 = class(TForm) 23 Edit1: TEdit; 24 ListView1: TListView; 25 Button1: TButton; 26 Memo1: TMemo; 27 procedure Edit1Change(Sender: TObject); 28 procedure Edit1Typing(Sender: TObject); 29 procedure Button1Click(Sender: TObject); 30 procedure FormCreate(Sender: TObject); 31 procedure ListView1ItemClick(const Sender: TObject; 32 const AItem: TListViewItem); 33 private 34 { Private declarations } 35 MainList : TList<JActivityInfo>; 36 dictAppIcons : TDictionary<Integer, TBitmap>; 37 //过虑方法 38 procedure FilterListView(AListView: TListView; AFilterName: string); 39 //打开APP方法 40 procedure OpenApp(PackageName, AppName : JString); 41 //获取安装的APP 42 function GetActivityAppList: JList; 43 function GetOrSetCashAppIcon(appInfo: JApplicationInfo): TBitmap; 44 procedure LoadActivityInfoList(var List: TList<JActivityInfo>); 45 procedure LoadDictonaryAppIcons(index: Integer; appInfo: JApplicationInfo; 46 var dictonaryAppIcons: TDictionary<Integer, TBitmap>); 47 procedure LoadListView(listView: TListView; AppList: TList<JActivityInfo>; 48 dictonaryAppIcons: TDictionary<Integer, TBitmap>); 49 procedure LoadListViewBitmap(listView: TListView; AppList: TList<JActivityInfo>; 50 var dictonaryAppIcons: TDictionary<Integer, TBitmap>); 51 public 52 { Public declarations } 53 end; 54 55 const 56 DEFAUT_INDEX: Integer = -1; 57 58 var 59 Form1: TForm1; 60 61 implementation 62 63 {$R *.fmx} 64 {$R *.NmXhdpiPh.fmx ANDROID} 65 66 { TForm1 } 67 //调用打开APP 68 procedure TForm1.Button1Click(Sender: TObject); 69 begin 70 OpenApp(StringToJString('com.androidillusion.videocamillusionpro'), 71 StringToJString('com.androidillusion.videocamillusionpro.VideoillusionActivity')); 72 end; 73 74 //改变事件 75 procedure TForm1.Edit1Change(Sender: TObject); 76 begin 77 if Edit1.Text = '' then 78 FilterListView(Self.ListView1, Edit1.Text.Trim); 79 end; 80 81 //输入事件 82 procedure TForm1.Edit1Typing(Sender: TObject); 83 begin 84 FilterListView(Self.ListView1, Edit1.Text.Trim); 85 end; 86 87 //过虑方法 88 procedure TForm1.FilterListView(AListView: TListView; AFilterName: string); 89 var 90 i: integer; 91 item: TListViewItem; 92 lower: string; 93 begin 94 if not Assigned(AListView) then 95 Exit; 96 lower := AFilterName.ToLower.Trim; 97 if lower.IsEmpty then 98 begin 99 if Assigned(AListView.Items.Filter) then 100 AListView.Items.Filter := nil; 101 end 102 else 103 begin 104 AListView.ItemIndex := DEFAUT_INDEX; 105 AListView.Items.Filter := 106 function(sFilter: string): Boolean 107 begin 108 Result := (lower.IsEmpty) or sFilter.ToLower.Contains(lower); 109 end; 110 end; 111 end; 112 113 procedure TForm1.FormCreate(Sender: TObject); 114 begin 115 LoadActivityInfoList(MainList); 116 LoadListView(Self.ListView1, MainList, self.dictAppIcons); 117 LoadListViewBitmap(Self.ListView1, MainList, self.dictAppIcons); 118 end; 119 120 //获取安装的APP 121 function TForm1.GetActivityAppList: JList; 122 var 123 tempList: JList; 124 Intent: JIntent; 125 Manager: JPackageManager; 126 begin 127 Intent := TJIntent.Create; 128 Intent.SetAction(TJIntent.JavaClass.ACTION_MAIN); 129 Intent.AddCategory(TJIntent.JavaClass.CATEGORY_LAUNCHER); 130 Manager := SharedActivity.GetPackageManager; 131 tempList := nil; 132 tempList := Manager.QueryIntentActivities(Intent, 0); 133 Result := tempList; 134 end; 135 136 function TForm1.GetOrSetCashAppIcon(appInfo: JApplicationInfo): TBitmap; 137 var 138 Drawable: JDrawable; 139 Bitmap: JBitmap; 140 itemBitmap: TBitmap; 141 Surface: TBitmapSurface; 142 saveDir: string; 143 pngFileName: string; 144 SaveParams: TBitmapCodecSaveParams; 145 begin 146 if not Assigned(appInfo) then 147 begin 148 Result := itemBitmap; 149 Exit; 150 end; 151 152 saveDir := TPath.GetCachePath; 153 pngFileName := saveDir + '/' + JStringToString(appInfo.packageName) + '.png'; 154 itemBitmap := TBitmap.Create; 155 if not TDirectory.Exists(saveDir, False) then 156 TDirectory.CreateDirectory(saveDir); 157 if TFile.Exists(pngFileName) then 158 itemBitmap.LoadFromFile(pngFileName) 159 else 160 begin 161 Drawable := appInfo.loadIcon(SharedActivity.getPackageManager); 162 Bitmap := TJBitmapDrawable.Wrap((Drawable as ILocalObject).GetObjectID).getBitmap; 163 Surface := TBitmapSurface.Create; 164 try 165 if JBitmapToSurface(Bitmap, Surface) then 166 begin 167 itemBitmap.Assign(Surface); 168 SaveParams.Quality := 100; 169 itemBitmap.SaveToFile(pngFileName, @SaveParams); 170 end; 171 finally 172 Surface.Free; 173 end; 174 end; 175 Result := itemBitmap; 176 end; 177 178 procedure TForm1.ListView1ItemClick(const Sender: TObject; 179 const AItem: TListViewItem); 180 begin 181 if not Assigned(MainList) then 182 Exit; 183 OpenApp(MainList.Items[AItem.Tag].applicationInfo.packageName, 184 MainList.Items[AItem.Tag].name); 185 Memo1.Lines.Add(JStringToString(MainList.Items[AItem.Tag].applicationInfo.packageName) + '/\' + JStringToString(MainList.Items[AItem.Tag].name)); 186 end; 187 188 procedure TForm1.LoadActivityInfoList(var List: TList<JActivityInfo>); 189 var 190 tempList: JList; 191 i: Integer; 192 ResolveInfo: JResolveInfo; 193 Info: JActivityInfo; 194 AppInfo: JApplicationInfo; 195 begin 196 if not Assigned(List) then 197 List := TList<JActivityInfo>.Create; 198 List.Clear; 199 tempList := Self.GetActivityAppList; 200 for i := 0 to tempList.size - 1 do 201 begin 202 ResolveInfo := TJResolveInfo.Wrap((tempList.get(i) as ILocalObject).GetObjectID); 203 Info := TJActivityInfo.Wrap((ResolveInfo.activityInfo as ILocalObject).GetObjectID); 204 AppInfo := TJApplicationInfo.Wrap((Info.applicationInfo as ILocalObject).GetObjectID); 205 List.Add(Info); 206 end; 207 end; 208 209 procedure TForm1.LoadDictonaryAppIcons(index: Integer; 210 appInfo: JApplicationInfo; 211 var dictonaryAppIcons: TDictionary<Integer, TBitmap>); 212 var 213 itemBitmap : TBitmap; 214 begin 215 if not Assigned(dictonaryAppIcons) then 216 dictonaryAppIcons := TDictionary<Integer, TBitmap>.Create; 217 if not dictonaryAppIcons.ContainsKey(index) then 218 begin 219 itemBitmap := GetOrSetCashAppIcon(appInfo); 220 dictonaryAppIcons.AddOrSetValue(index, itemBitmap); 221 end; 222 end; 223 224 procedure TForm1.LoadListView(listView: TListView; 225 AppList: TList<JActivityInfo>; 226 dictonaryAppIcons: TDictionary<Integer, TBitmap>); 227 var 228 tempItem : TListViewItem; 229 tempString, tempSubString, tempSubString2 : string; 230 i : integer; 231 begin 232 if (not Assigned(listView)) or (not Assigned(AppList)) then 233 Exit; 234 listView.Items.Clear; 235 listView.BeginUpdate; 236 for I := 0 to AppList.Count - 1 do 237 begin 238 tempString := JStringToString(AppList.Items[i].applicationInfo.loadLabel(SharedActivity.getPackageManager).toString); 239 tempItem := listView.Items.Add; 240 tempItem.Text := tempString; 241 tempItem.Tag := i; 242 end; 243 listView.EndUpdate; 244 end; 245 246 procedure TForm1.LoadListViewBitmap(listView: TListView; 247 AppList: TList<JActivityInfo>; 248 var dictonaryAppIcons: TDictionary<Integer, TBitmap>); 249 var 250 i: integer; 251 begin 252 if (not Assigned(listView)) or (not Assigned(AppList)) then 253 Exit; 254 listView.BeginUpdate; 255 for I := 0 to listView.ItemCount - 1 do 256 begin 257 listView.Items[i].BeginUpdate; 258 LoadDictonaryAppIcons(i, AppList.Items[listView.Items[i].Tag].applicationInfo, dictonaryAppIcons); 259 if Assigned(dictonaryAppIcons) and (dictonaryAppIcons.ContainsKey(i)) then 260 listView.Items[i].Bitmap := dictonaryAppIcons.Items[i]; 261 listView.Items[i].EndUpdate; 262 Application.ProcessMessages; 263 end; 264 listView.EndUpdate; 265 end; 266 267 //打开APP方法 268 procedure TForm1.OpenApp(PackageName, AppName: JString); 269 var 270 Intent : JIntent; 271 NativeComponent : JComponentName; 272 begin 273 Intent := TJIntent.Create; 274 Intent.setAction(TJIntent.JavaClass.ACTION_MAIN); 275 Intent.addCategory(TJIntent.JavaClass.CATEGORY_LAUNCHER); 276 NativeComponent := TJComponentName.JavaClass.init(PackageName, AppName); 277 Intent.addFlags(TJIntent.JavaClass.FLAG_ACTIVITY_NEW_TASK or TJIntent.JavaClass.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED); 278 Intent.setComponent(NativeComponent); 279 SharedActivity.startActivity(Intent); 280 end; 281 282 end.
作者:疯狂Delphi
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