android+获取电池信息,Delphi XE5 Android应用程序获取电池信息
将android.os.BatteryManager类移植到Delphi。uses Androidapi.JNI.JavaTypes,Androidapi.JNIBridge;typeJBatteryManagerClass = interface(JObjectClass)['{739F38F8-E2A2-4016-8739-3F073A0E3E60}'] // CTRL+SHIFT+Gfunc
将android.os.BatteryManager类移植到Delphi。
uses Androidapi.JNI.JavaTypes,
Androidapi.JNIBridge;
type
JBatteryManagerClass = interface(JObjectClass)
['{739F38F8-E2A2-4016-8739-3F073A0E3E60}'] // CTRL+SHIFT+G
function _GetBATTERY_HEALTH_COLD: Integer;
function _GetBATTERY_HEALTH_DEAD: Integer;
function _GetBATTERY_HEALTH_GOOD: Integer;
function _GetBATTERY_HEALTH_OVERHEAT: Integer;
function _GetBATTERY_HEALTH_OVER_VOLTAGE: Integer;
function _GetBATTERY_HEALTH_UNKNOWN: Integer;
function _GetBATTERY_HEALTH_UNSPECIFIED_FAILURE: Integer;
function _GetBATTERY_PLUGGED_AC: Integer;
function _GetBATTERY_PLUGGED_USB: Integer;
function _GetBATTERY_PLUGGED_WIRELESS: Integer;
function _GetBATTERY_STATUS_CHARGING: Integer;
function _GetBATTERY_STATUS_DISCHARGING: Integer;
function _GetBATTERY_STATUS_FULL: Integer;
function _GetBATTERY_STATUS_NOT_CHARGING: Integer;
function _GetBATTERY_STATUS_UNKNOWN: Integer;
function _GetEXTRA_HEALTH: JString;
function _GetEXTRA_ICON_SMALL: JString;
function _GetEXTRA_LEVEL: JString;
function _GetEXTRA_PLUGGED: JString;
function _GetEXTRA_PRESENT: JString;
function _GetEXTRA_SCALE: JString;
function _GetEXTRA_STATUS: JString;
function _GetEXTRA_TECHNOLOGY: JString;
function _GetEXTRA_TEMPERATURE: JString;
function _GetEXTRA_VOLTAGE: JString;
property BATTERY_HEALTH_COLD: Integer read _GetBATTERY_HEALTH_COLD;
property BATTERY_HEALTH_DEAD: Integer read _GetBATTERY_HEALTH_DEAD;
property BATTERY_HEALTH_GOOD: Integer read _GetBATTERY_HEALTH_GOOD;
property BATTERY_HEALTH_OVERHEAT: Integer read _GetBATTERY_HEALTH_OVERHEAT;
property BATTERY_HEALTH_OVER_VOLTAGE: Integer
read _GetBATTERY_HEALTH_OVER_VOLTAGE;
property BATTERY_HEALTH_UNKNOWN: Integer read _GetBATTERY_HEALTH_UNKNOWN;
property BATTERY_HEALTH_UNSPECIFIED_FAILURE: Integer
read _GetBATTERY_HEALTH_UNSPECIFIED_FAILURE;
property BATTERY_PLUGGED_AC: Integer read _GetBATTERY_PLUGGED_AC;
property BATTERY_PLUGGED_USB: Integer read _GetBATTERY_PLUGGED_USB;
property BATTERY_PLUGGED_WIRELESS: Integer
read _GetBATTERY_PLUGGED_WIRELESS;
property BATTERY_STATUS_CHARGING: Integer read _GetBATTERY_STATUS_CHARGING;
property BATTERY_STATUS_DISCHARGING: Integer
read _GetBATTERY_STATUS_DISCHARGING;
property BATTERY_STATUS_FULL: Integer read _GetBATTERY_STATUS_FULL;
property BATTERY_STATUS_NOT_CHARGING: Integer
read _GetBATTERY_STATUS_NOT_CHARGING;
property BATTERY_STATUS_UNKNOWN: Integer read _GetBATTERY_STATUS_UNKNOWN;
property EXTRA_HEALTH: JString read _GetEXTRA_HEALTH;
property EXTRA_HEALTHEXTRA_HEALTHEXTRA_ICON_SMALL: JString
read _GetEXTRA_ICON_SMALL;
property EXTRA_LEVEL: JString read _GetEXTRA_LEVEL;
property EXTRA_PLUGGED: JString read _GetEXTRA_PLUGGED;
property EXTRA_PRESENT: JString read _GetEXTRA_PRESENT;
property EXTRA_SCALE: JString read _GetEXTRA_SCALE;
property EXTRA_STATUS: JString read _GetEXTRA_STATUS;
property EXTRA_TECHNOLOGY: JString read _GetEXTRA_TECHNOLOGY;
property EXTRA_TEMPERATURE: JString read _GetEXTRA_TEMPERATURE;
property EXTRA_VOLTAGE: JString read _GetEXTRA_VOLTAGE;
end;
[JavaSignature('android/os/BatteryManager')]
JBatteryManager = interface(JObject)
['{73085A7C-18A7-4295-A0E2-A7B7D2C0EACB}'] // CTRL+SHIFT+G
end;
TJBatteryManager = class(TJavaGenericImport
JBatteryManager>)
end;
在窗体上放置一个按钮(TButton)和一个注释(TMemo)。
001
为按钮添加一个OnClick事件。
uses Androidapi.JNI.JavaTypes,
Androidapi.JNIBridge,
FMX.Platform.Android,
Androidapi.JNI.GraphicsContentViewText;
procedure TForm1.Button1Click(Sender: TObject);
var
Filter: JIntentFilter;
Battery: JIntent;
Status, Health, Level, Scale, IconSmall, Plugged, Voltage,
Temperature: Integer;
Present: Boolean;
Technology, StatusString, HealthString, ScString: string;
begin
Filter := TJIntentFilter.JavaClass.init
(TJIntent.JavaClass.ACTION_BATTERY_CHANGED);
Battery := MainActivity.registerReceiver(nil, Filter);
Status := Battery.getIntExtra(StringToJString('status'), 0);
Health := Battery.getIntExtra(StringToJString('health'), 0);
Present := Battery.getBooleanExtra(StringToJString('present'), false);
Level := Battery.getIntExtra(StringToJString('level'), 0);
Scale := Battery.getIntExtra(StringToJString('scale'), 0);
IconSmall := Battery.getIntExtra(StringToJString('icon-small'), 0);
Plugged := Battery.getIntExtra(StringToJString('plugged'), 0);
Voltage := Battery.getIntExtra(StringToJString('voltage'), 0);
Temperature := Battery.getIntExtra(StringToJString('temperature'), 0);
Technology := JStringToString
(Battery.getStringExtra(StringToJString('technology')));
StatusString := '';
if Status = TJBatteryManager.JavaClass.BATTERY_STATUS_UNKNOWN then
StatusString := 'UNKNOWN'
else if Status = TJBatteryManager.JavaClass.BATTERY_STATUS_CHARGING then
StatusString := 'CHARGING'
else if Status = TJBatteryManager.JavaClass.BATTERY_STATUS_DISCHARGING then
StatusString := 'DISCHARGING'
else if Status = TJBatteryManager.JavaClass.BATTERY_STATUS_NOT_CHARGING then
StatusString := 'NOT CHARGING'
else if Status = TJBatteryManager.JavaClass.BATTERY_STATUS_FULL then
StatusString := 'FULL';
HealthString := '';
if Health = TJBatteryManager.JavaClass.BATTERY_HEALTH_UNKNOWN then
HealthString := 'UNKNOWN'
else if Health = TJBatteryManager.JavaClass.BATTERY_HEALTH_GOOD then
HealthString := 'GOOD'
else if Health = TJBatteryManager.JavaClass.BATTERY_HEALTH_OVERHEAT then
HealthString := 'OVERHEAT'
else if Health = TJBatteryManager.JavaClass.BATTERY_HEALTH_DEAD then
HealthString := 'DEAD'
else if Health = TJBatteryManager.JavaClass.BATTERY_HEALTH_OVER_VOLTAGE then
HealthString := 'OVER VOLTAGE'
else if Health = TJBatteryManager.JavaClass.BATTERY_HEALTH_UNSPECIFIED_FAILURE
then
HealthString := 'UNSPECIFIED FAILURE';
ScString := '';
if Plugged = TJBatteryManager.JavaClass.BATTERY_PLUGGED_AC then
ScString := 'AC'
else if Plugged = TJBatteryManager.JavaClass.BATTERY_PLUGGED_USB then
ScString := 'USB';
Memo1.Lines.Clear;
Memo1.Lines.Add(Format('%s=%s', ['Status(充電状態)', StatusString]));
Memo1.Lines.Add(Format('%s=%s', ['Health(电池状态)', HealthString]));
Memo1.Lines.Add(Format('%s=%s', ['Present(是否存在电池)',
BoolToStr(Present, True)]));
Memo1.Lines.Add(Format('%s=%d', ['Level(电池余量)', Level]));
Memo1.Lines.Add(Format('%s=%d', ['Scale(最大电池余量)', Scale]));
Memo1.Lines.Add(Format('%s=%d', ['Icon Small', IconSmall]));
Memo1.Lines.Add(Format('%s=%s', ['Plugged(AC or USB)', ScString]));
Memo1.Lines.Add(Format('%s=%d', ['Voltage(电池电压)', Voltage]));
Memo1.Lines.Add(Format('%s=%d', ['Temperature(电池电压)', Temperature]));
Memo1.Lines.Add(Format('%s=%s', ['Technology', Technology]));
end;
运行该应用程序,然后按按钮以显示电池信息。
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